Merge branch 'devel' of https://github.com/cnr-isti-vclab/vcglib into devel

.github/workflows/BuildExamplesLinux.yml

@@ -1,12 +1,12 @@
-name: BuildSamplesUbuntu
+name: BuildExamplesLinux
 
 on:
   [push, pull_request]
 
 jobs:
   ubuntu_build_tests:
-    name: Build Samples (Ubuntu)
+    name: Build Examples (Linux)
-    runs-on: ubuntu-latest #in order to deploy, need to use oldest supported version
+    runs-on: ubuntu-latest 
 
     steps:
     - uses: actions/checkout@v2
@@ -14,5 +14,7 @@ jobs:
       uses: jurplel/install-qt-action@v2
     - name: Build Samples
       run: |
-        qmake apps/sample/sample.pro
+        mkdir build
+        cd build
+        cmake -DVCG_BUILD_EXAMPLES=ON ..
         make -j4

.github/workflows/BuildExamplesMacOS.yml

@@ -1,11 +1,11 @@
-name: BuildSamplesMacOS
+name: BuildExamplesMacOS
 
 on:
   [push, pull_request]
 
 jobs:
   macos_build_tests:
-    name: Build Samples (MacOS)
+    name: Build Examples (MacOS)
     runs-on: macos-latest
 
     steps:
@@ -14,5 +14,7 @@ jobs:
       uses: jurplel/install-qt-action@v2
     - name: Build Samples
       run: |
-        qmake apps/sample/sample.pro
+        mkdir build
+        cd build
+        cmake -DVCG_BUILD_EXAMPLES=ON .. 
         make -j4

.github/workflows/BuildExamplesWindows.yml

@@ -1,10 +1,10 @@
-name: BuildSamplesWindows
+name: BuildExamplesWindows
 
 on: [push, pull_request]
 
 jobs:
   windows_build_tests:
-    name: Build Samples (Windows)
+    name: Build Examples (Windows)
     runs-on: windows-latest
 
     steps:
@@ -25,5 +25,7 @@ jobs:
       uses: jurplel/install-qt-action@v2
     - name: Build Samples
       run: |
-        qmake apps/sample/sample.pro
+        mkdir build
+        cd build
+        cmake -G "NMake Makefiles" -DVCG_BUILD_EXAMPLES=ON ..
         jom -j4

CMakeLists.txt

@@ -0,0 +1,303 @@
+# Copyright 2019, 2020, Collabora, Ltd.
+# Copyright 2019, 2021, Visual Computing Lab, ISTI - Italian National Research Council
+# SPDX-License-Identifier: BSL-1.0
+
+cmake_minimum_required(VERSION 3.13)
+project(VCGLib)
+
+# Eigen options
+option(ALLOW_BUNDLED_EIGEN "Allow use of bundled Eigen source" ON)
+option(ALLOW_SYSTEM_EIGEN "Allow use of system-provided Eigen" ON)
+
+# VCG options
+option(VCG_HEADER_ONLY "Use VCG library in header only mode" ON)
+option(VCG_BUILD_EXAMPLES "Build a set of examples of the library" OFF)
+
+set (VCG_INCLUDE_DIRS ${CMAKE_CURRENT_LIST_DIR})
+set (VCG_INCLUDE_DIRS ${CMAKE_CURRENT_LIST_DIR} PARENT_SCOPE)
+
+# Prefer GLVND
+if(POLICY CMP0072)
+	cmake_policy(SET CMP0072 NEW)
+endif()
+
+### Build settings
+set(CMAKE_CXX_STANDARD 11)
+
+### Eigen
+set(VCG_EIGEN_DIR ${CMAKE_CURRENT_LIST_DIR}/eigenlib)
+
+if(ALLOW_SYSTEM_EIGEN AND EIGEN3_INCLUDE_DIR)
+	message(STATUS "- Eigen - using system-provided library")
+	set(EIGEN_INCLUDE_DIRS ${EIGEN3_INCLUDE_DIR})
+elseif(ALLOW_BUNDLED_EIGEN AND EXISTS "${VCG_EIGEN_DIR}/Eigen/Eigen")
+	message(STATUS "- Eigen - using bundled source")
+	set(EIGEN_INCLUDE_DIRS ${VCG_EIGEN_DIR})
+else()
+	message(
+		FATAL_ERROR
+			"Eigen is required - at least one of ALLOW_SYSTEM_EIGEN or ALLOW_BUNDLED_EIGEN must be enabled and found.")
+endif()
+
+### VCGLib headers and sources
+
+set(VCG_HEADERS
+	vcg/complex/append.h
+	vcg/complex/all_types.h
+	vcg/complex/complex.h
+	vcg/complex/allocate.h
+	vcg/complex/exception.h
+	vcg/complex/algorithms/overlap_estimation.h
+	vcg/complex/algorithms/dual_meshing.h
+	vcg/complex/algorithms/intersection.h
+	vcg/complex/algorithms/clip.h
+	vcg/complex/algorithms/geodesic.h
+	vcg/complex/algorithms/parametrization/poisson_solver.h
+	vcg/complex/algorithms/parametrization/uv_utils.h
+	vcg/complex/algorithms/parametrization/distortion.h
+	vcg/complex/algorithms/parametrization/tangent_field_operators.h
+	vcg/complex/algorithms/parametrization/voronoi_atlas.h
+	vcg/complex/algorithms/edge_collapse.h
+	vcg/complex/algorithms/hole.h
+	vcg/complex/algorithms/align_pair.h
+	vcg/complex/algorithms/closest.h
+	vcg/complex/algorithms/tetra_implicit_smooth.h
+	vcg/complex/algorithms/bitquad_support.h
+	vcg/complex/algorithms/skeleton.h
+	vcg/complex/algorithms/symmetry.h
+	vcg/complex/algorithms/voronoi_volume_sampling.h
+	vcg/complex/algorithms/polygon_polychord_collapse.h
+	vcg/complex/algorithms/inside.h
+	vcg/complex/algorithms/local_optimization/tri_edge_flip.h
+	vcg/complex/algorithms/local_optimization/quad_diag_collapse.h
+	vcg/complex/algorithms/local_optimization/tri_edge_collapse_quadric.h
+	vcg/complex/algorithms/local_optimization/tri_edge_collapse_quadric_tex.h
+	vcg/complex/algorithms/local_optimization/tri_edge_collapse.h
+	vcg/complex/algorithms/local_optimization/tetra_edge_collapse.h
+	vcg/complex/algorithms/polygonal_algorithms.h
+	vcg/complex/algorithms/inertia.h
+	vcg/complex/algorithms/mesh_assert.h
+	vcg/complex/algorithms/cut_tree.h
+	vcg/complex/algorithms/nring.h
+	vcg/complex/algorithms/tetra/tetfuse_collapse.h
+	vcg/complex/algorithms/stat.h
+	vcg/complex/algorithms/ransac_matching.h
+	vcg/complex/algorithms/refine.h
+	vcg/complex/algorithms/outline_support.h
+	vcg/complex/algorithms/convex_hull.h
+	vcg/complex/algorithms/clean.h
+	vcg/complex/algorithms/mesh_to_matrix.h
+	vcg/complex/algorithms/quadrangulator.h
+	vcg/complex/algorithms/isotropic_remeshing.h
+	vcg/complex/algorithms/smooth.h
+	vcg/complex/algorithms/autoalign_4pcs.h
+	vcg/complex/algorithms/local_optimization.h
+	vcg/complex/algorithms/curve_on_manifold.h
+	vcg/complex/algorithms/clustering.h
+	vcg/complex/algorithms/refine_loop.h
+	vcg/complex/algorithms/cylinder_clipping.h
+	vcg/complex/algorithms/pointcloud_normal.h
+	vcg/complex/algorithms/bitquad_creation.h
+	vcg/complex/algorithms/crease_cut.h
+	vcg/complex/algorithms/implicit_smooth.h
+	vcg/complex/algorithms/voronoi_remesher.h
+	vcg/complex/algorithms/polygon_support.h
+	vcg/complex/algorithms/point_sampling.h
+	vcg/complex/algorithms/create/mc_lookup_table.h
+	vcg/complex/algorithms/create/mc_trivial_walker.h
+	vcg/complex/algorithms/create/extrude.h
+	vcg/complex/algorithms/create/resampler.h
+	vcg/complex/algorithms/create/ball_pivoting.h
+	vcg/complex/algorithms/create/readme.txt
+	vcg/complex/algorithms/create/zonohedron.h
+	vcg/complex/algorithms/create/platonic.h
+	vcg/complex/algorithms/create/marching_cubes.h
+	vcg/complex/algorithms/create/plymc/voxel.h
+	vcg/complex/algorithms/create/plymc/simplemeshprovider.h
+	vcg/complex/algorithms/create/plymc/tri_edge_collapse_mc.h
+	vcg/complex/algorithms/create/plymc/volume.h
+	vcg/complex/algorithms/create/plymc/plymc.h
+	vcg/complex/algorithms/create/plymc/svoxel.h
+	vcg/complex/algorithms/create/tetramesh_support.h
+	vcg/complex/algorithms/create/advancing_front.h
+	vcg/complex/algorithms/textcoord_optimization.h
+	vcg/complex/algorithms/bitquad_optimization.h
+	vcg/complex/algorithms/halfedge_quad_clean.h
+	vcg/complex/algorithms/voronoi_processing.h
+	vcg/complex/algorithms/update/quality.h
+	vcg/complex/algorithms/update/selection.h
+	vcg/complex/algorithms/update/fitmaps.h
+	vcg/complex/algorithms/update/component_ep.h
+	vcg/complex/algorithms/update/texture.h
+	vcg/complex/algorithms/update/curvature_fitting.h
+	vcg/complex/algorithms/update/normal.h
+	vcg/complex/algorithms/update/position.h
+	vcg/complex/algorithms/update/halfedge_topology.h
+	vcg/complex/algorithms/update/topology.h
+	vcg/complex/algorithms/update/flag.h
+	vcg/complex/algorithms/update/bounding.h
+	vcg/complex/algorithms/update/halfedge_indexed.h
+	vcg/complex/algorithms/update/color.h
+	vcg/complex/algorithms/update/curvature.h
+	vcg/complex/algorithms/point_outlier.h
+	vcg/complex/algorithms/harmonic.h
+	vcg/complex/algorithms/point_matching_scale.h
+	vcg/complex/algorithms/attribute_seam.h
+	vcg/complex/foreach.h
+	vcg/complex/base.h
+	vcg/complex/used_types.h
+	vcg/container/entries_allocation_table.h
+	vcg/container/container_allocation_table.h
+	vcg/container/derivation_chain.h
+	vcg/container/vector_occ.h
+	vcg/container/simple_temporary_data.h
+	vcg/space/segment2.h
+	vcg/space/fitting3.h
+	vcg/space/tetra3.h
+	vcg/space/triangle2.h
+	vcg/space/ray2.h
+	vcg/space/deprecated_point2.h
+	vcg/space/point4.h
+	vcg/space/box2.h
+	vcg/space/ray3.h
+	vcg/space/planar_polygon_tessellation.h
+	vcg/space/texcoord2.h
+	vcg/space/deprecated_point3.h
+	vcg/space/intersection/triangle_triangle3.h
+	vcg/space/distance2.h
+	vcg/space/point3.h
+	vcg/space/deprecated_point.h
+	vcg/space/space.h
+	vcg/space/point.h
+	vcg/space/colorspace.h
+	vcg/space/rect_packer.h
+	vcg/space/triangle3.h
+	vcg/space/obox3.h
+	vcg/space/point2.h
+	vcg/space/smallest_enclosing.h
+	vcg/space/color4.h
+	vcg/space/polygon3.h
+	vcg/space/line3.h
+	vcg/space/index/octree.h
+	vcg/space/index/grid_util2d.h
+	vcg/space/index/grid_closest.h
+	vcg/space/index/grid_static_ptr.h
+	vcg/space/index/grid_util.h
+	vcg/space/index/spatial_hashing.h
+	vcg/space/index/closest2d.h
+	vcg/space/index/grid_static_obj.h
+	vcg/space/index/kdtree/kdtree.h
+	vcg/space/index/kdtree/priorityqueue.h
+	vcg/space/index/kdtree/kdtree_face.h
+	vcg/space/index/kdtree/mlsutils.h
+	vcg/space/index/octree_template.h
+	vcg/space/index/aabb_binary_tree/kclosest.h
+	vcg/space/index/aabb_binary_tree/closest.h
+	vcg/space/index/aabb_binary_tree/ray.h
+	vcg/space/index/aabb_binary_tree/frustum_cull.h
+	vcg/space/index/aabb_binary_tree/aabb_binary_tree.h
+	vcg/space/index/aabb_binary_tree/base.h
+	vcg/space/index/grid_closest2d.h
+	vcg/space/index/spatial_hashing2d.h
+	vcg/space/index/space_iterators.h
+	vcg/space/index/grid_static_ptr2d.h
+	vcg/space/index/base2d.h
+	vcg/space/index/base.h
+	vcg/space/index/perfect_spatial_hashing.h
+	vcg/space/index/space_iterators2d.h
+	vcg/space/line2.h
+	vcg/space/point_matching.h
+	vcg/space/intersection3.h
+	vcg/space/deprecated_point4.h
+	vcg/space/rasterized_outline2_packer.h
+	vcg/space/box.h
+	vcg/space/plane3.h
+	vcg/space/outline2_packer.h
+	vcg/space/segment3.h
+	vcg/space/intersection2.h
+	vcg/space/sphere3.h
+	vcg/space/box3.h
+	vcg/space/distance3.h
+	vcg/math/quadric5.h
+	vcg/math/factorial.h
+	vcg/math/eigen_matrix_addons.h
+	vcg/math/quadric.h
+	vcg/math/perlin_noise.h
+	vcg/math/shot.h
+	vcg/math/spherical_harmonics.h
+	vcg/math/eigen_matrixbase_addons.h
+	vcg/math/quaternion.h
+	vcg/math/similarity.h
+	vcg/math/disjoint_set.h
+	vcg/math/random_generator.h
+	vcg/math/camera.h
+	vcg/math/linear.h
+	vcg/math/matrix44.h
+	vcg/math/eigen.h
+	vcg/math/old_lin_algebra.h
+	vcg/math/similarity2.h
+	vcg/math/gen_normal.h
+	vcg/math/old_matrix44.h
+	vcg/math/old_deprecated_matrix.h
+	vcg/math/old_matrix33.h
+	vcg/math/polar_decomposition.h
+	vcg/math/base.h
+	vcg/math/histogram.h
+	vcg/math/legendre.h
+	vcg/math/matrix33.h
+	vcg/math/old_matrix.h
+	vcg/simplex/edge/distance.h
+	vcg/simplex/edge/topology.h
+	vcg/simplex/edge/pos.h
+	vcg/simplex/edge/component.h
+	vcg/simplex/edge/base.h
+	vcg/simplex/tetrahedron/tetrahedron.h
+	vcg/simplex/tetrahedron/topology.h
+	vcg/simplex/tetrahedron/pos.h
+	vcg/simplex/tetrahedron/component.h
+	vcg/simplex/tetrahedron/base.h
+	vcg/simplex/face/component_occ.h
+	vcg/simplex/face/component_ep.h
+	vcg/simplex/face/jumping_pos.h
+	vcg/simplex/face/distance.h
+	vcg/simplex/face/component_polygon.h
+	vcg/simplex/face/topology.h
+	vcg/simplex/face/pos.h
+	vcg/simplex/face/component.h
+	vcg/simplex/face/component_ocf.h
+	vcg/simplex/face/base.h
+	vcg/simplex/vertex/component_occ.h
+	vcg/simplex/vertex/component_sph.h
+	vcg/simplex/vertex/distance.h
+	vcg/simplex/vertex/component.h
+	vcg/simplex/vertex/component_ocf.h
+	vcg/simplex/vertex/base.h
+	vcg/connectors/halfedge_pos.h
+	vcg/connectors/hedge.h
+	vcg/connectors/hedge_component.h
+
+	#wrap
+	wrap/callback.h
+)
+
+set(SOURCES
+)
+
+if (VCG_HEADER_ONLY)
+	add_library(vcglib INTERFACE)
+	target_include_directories(
+		vcglib INTERFACE
+		${CMAKE_CURRENT_LIST_DIR}
+		${EIGEN_INCLUDE_DIRS})
+
+	#just to show headers in ide
+	add_custom_target(vcglib_ide SOURCES ${VCG_HEADERS})
+else()
+	#TODO make vcglib that includes all the wrap sources, checking everytime
+	# if the the required targets (e.g. qt, gl, glew...) exists
+endif()
+
+if(VCG_BUILD_EXAMPLES)
+	#TODO make the list of samples to build
+	add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/apps)
+endif()

README.md

@@ -1,8 +1,8 @@
 The **_Visualization and Computer Graphics Library_** (VCGlib for short) is a open source, portable, C++, templated, no dependency, library for manipulation, processing, cleaning, simplifying triangle meshes.
 
-![BuildSamplesUbuntu](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildSamplesUbuntu/badge.svg)
+![BuildExamplesLinux](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildExamplesLinux/badge.svg)
-![BuildSamplesMacOS](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildSamplesMacOS/badge.svg)
+![BuildExamplesMacOS](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildExamplesMacOS/badge.svg)
-![BuildSamplesWindows](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildSamplesWindows/badge.svg)
+![BuildExamplesWindows](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildExamplesWindows/badge.svg)
 
 The library, composed by more than 100k lines of code, is released under the GPL license, and it is the base of most of the software tools of the [Visual Computing Lab](http://vcg.isti.cnr.it) of the Italian National Research Council Institute ISTI, like MeshLab, metro and many others.
 
@@ -28,17 +28,10 @@ A number of applications have been developed using the vcglib:
 - Metro, the tool for measuring differences between meshes
 - The first high quality out-of-core mesh simplifier that was used by the Stanford Digital Michelangelo project to process their huge 3D scanned models.
 
-## Contributing
-In case of bugs please report them [here](https://github.com/cnr-isti-vclab/vcglib/issues).
-
-Copyright of the library is fully owned by CNR. Contributing means signing an appropriate [license agreement](https://github.com/cnr-isti-vclab/vcglib/blob/master/docs/ContributorLicenseAgreement.pdf) . 
-
-Pull requests about trivial, small, questionable updates (e.g. small stylistic changes like int -> uint8_t) will be rejected without discussion. 
-
-
 ## Contacts
 
 For any info about licensing (portion of) the library please contact us:
 Paolo Cignoni (p.cignoni@isti.cnr.it) 
 Visual Computing Lab of the Italian National Research Council - ISTI
 
+In case of bugs please report them [here](https://github.com/cnr-isti-vclab/vcglib/issues) .

apps/CMakeLists.txt

@@ -1,9 +1,7 @@
-cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.13)
-set(CMAKE_CXX_STANDARD 11)
+
-set(CMAKE_BUILD_TYPE Release)
+project(VCGApps)
-set(CMAKE_CXX_STANDARD_REQUIRED ON) #...is required...
+
-set(CMAKE_CXX_EXTENSIONS OFF) #...without compiler extensions like gnu++11
+add_subdirectory(sample)
-include_directories(../)
-include_directories(../eigenlib)
 add_subdirectory(metro)
 add_subdirectory(tridecimator)

apps/QT/trimesh_QT/glarea.h

@@ -67,7 +67,7 @@ class GLArea:public QGLWidget
 Q_OBJECT
 public:
   GLArea (QWidget * parent = 0);
-  /// we choosed a subset of the avaible drawing modes
+  /// we chose a subset of the available drawing modes
   enum DrawMode{SMOOTH=0,POINTS,WIRE,FLATWIRE,HIDDEN,FLAT};
 public slots:
   /// widget-based user interaction slots

apps/QT/trimesh_QT_shared/glarea.h

@@ -71,7 +71,7 @@ public:
 	~GLArea();
 	void resetTrackBall();
     //unsigned int getId() const {return areaid;}
-	/// we choosed a subset of the avaible drawing modes
+	/// we chose a subset of the available drawing modes
 
 signals:
 		/// signal for setting the statusbar message

apps/QT/trimesh_ant_freeglut/main.cpp

@@ -75,7 +75,7 @@ vcg::Trackball track;
 /// window size
 int width,height;
 
-/// we choosed a subset of the avaible drawing modes
+/// we chose a subset of the available drawing modes
 enum DrawMode{SMOOTH=0,PERPOINTS,WIRE,FLATWIRE,HIDDEN,FLAT};
 
 /// the current drawmode

apps/metro/CMakeLists.txt

@@ -1,2 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
 project (metro)
-add_executable(metro metro.cpp ../../wrap/ply/plylib.cpp)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		metro.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(metro
+	${SOURCES})
+
+target_link_libraries(
+	metro
+	PUBLIC
+		vcglib
+	)

apps/plymc/simplemeshprovider.h

@@ -112,7 +112,7 @@ template<class TriMeshType>
 //      ALNParser::ParseALN(rmaps, alnName);
 
 //      for(size_t i=0; i<rmaps.size(); i++)
-//          AddSingleMesh(rmaps[i].filename.c_str(), rmaps[i].trasformation, rmaps[i].quality);
+//          AddSingleMesh(rmaps[i].filename.c_str(), rmaps[i].transformation, rmaps[i].quality);
 
       return true;
     }

apps/sample/CMakeLists.txt

@@ -0,0 +1,64 @@
+cmake_minimum_required(VERSION 3.13)
+project(VCGExamples)
+
+set(VCG_EXAMPLE_PROJECTS
+	aabb_binary_tree
+	colorspace
+	polygonmesh_base
+	polygonmesh_dual
+	polygonmesh_optimize
+	polygonmesh_polychord_collapse
+	polygonmesh_smooth
+	space_index_2d
+	space_packer
+	space_rasterized_packer
+	trimesh_align_pair
+	trimesh_allocate
+	trimesh_attribute
+	trimesh_attribute_saving
+	trimesh_ball_pivoting
+	trimesh_base
+	trimesh_closest
+	trimesh_clustering
+	trimesh_color
+	trimesh_copy
+	trimesh_create
+	trimesh_curvature
+	trimesh_cylinder_clipping
+	trimesh_disk_parametrization
+	trimesh_fitting
+	trimesh_geodesic
+	trimesh_harmonic
+	trimesh_hole
+	trimesh_implicit_smooth
+	trimesh_indexing
+	trimesh_inertia
+	trimesh_intersection_plane
+	trimesh_intersection_mesh
+	trimesh_isosurface
+	trimesh_join
+	trimesh_kdtree
+	trimesh_montecarlo_sampling
+	trimesh_normal
+	trimesh_optional
+	trimesh_pointmatching
+	trimesh_pointcloud_sampling
+	trimesh_ray
+	trimesh_refine
+	trimesh_remeshing
+	trimesh_sampling
+	trimesh_select
+	trimesh_smooth
+	trimesh_split_vertex
+	trimesh_texture
+	trimesh_texture_clean
+	trimesh_topology
+	trimesh_topological_cut
+	trimesh_voronoi
+	trimesh_voronoiatlas
+	trimesh_voronoiclustering
+	trimesh_voronoisampling)
+
+foreach(VCG_EXAMPLE ${VCG_EXAMPLE_PROJECTS})
+	add_subdirectory(${VCG_EXAMPLE})
+endforeach()

apps/sample/aabb_binary_tree/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.13)
+project(aabb_binary_tree)
+
+set(SOURCES
+	aabb_binary_tree.cpp)
+
+add_executable(aabb_binary_tree
+	${SOURCES})
+
+target_link_libraries(
+	aabb_binary_tree
+	PUBLIC
+		vcglib
+	)

apps/sample/colorspace/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.13)
+project(colorspace)
+
+set(SOURCES
+	colorspace.cpp)
+
+add_executable(colorspace
+	${SOURCES})
+
+target_link_libraries(
+	colorspace
+	PUBLIC
+		vcglib
+	)

apps/sample/polygonmesh_base/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(polygonmesh_base)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		polygonmesh.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(polygonmesh_base
+	${SOURCES})
+
+target_link_libraries(
+	polygonmesh_base
+	PUBLIC
+		vcglib
+	)

apps/sample/polygonmesh_dual/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(polygonmesh_dual)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		polygonmesh_dual.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(polygonmesh_dual
+	${SOURCES})
+
+target_link_libraries(
+	polygonmesh_dual
+	PUBLIC
+		vcglib
+	)

apps/sample/polygonmesh_optimize/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(polygonmesh_optimize)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		polygonmesh_optimize.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(polygonmesh_optimize
+	${SOURCES})
+
+target_link_libraries(
+	polygonmesh_optimize
+	PUBLIC
+		vcglib
+	)

apps/sample/polygonmesh_polychord_collapse/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(polygonmesh_polychord_collapse)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		polygonmesh_polychord_collapse.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(polygonmesh_polychord_collapse
+	${SOURCES})
+
+target_link_libraries(
+	polygonmesh_polychord_collapse
+	PUBLIC
+		vcglib
+	)

apps/sample/polygonmesh_smooth/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(polygonmesh_smooth)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		polygonmesh_smooth.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(polygonmesh_smooth
+	${SOURCES})
+
+target_link_libraries(
+	polygonmesh_smooth
+	PUBLIC
+		vcglib
+	)

apps/sample/sample.pro

@@ -60,4 +60,4 @@ SUBDIRS = \
 	trimesh_voronoi \
 	trimesh_voronoiatlas \
 	trimesh_voronoiclustering \
-	trimesh_voronoisampling \
+	trimesh_voronoisampling

apps/sample/space_index_2d/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(space_index_2d)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		space_index_2d.cpp)
+endif()
+
+add_executable(space_index_2d
+	${SOURCES})
+
+target_link_libraries(
+	space_index_2d
+	PUBLIC
+		vcglib
+	)

apps/sample/space_packer/CMakeLists.txt

@@ -0,0 +1,30 @@
+cmake_minimum_required(VERSION 3.13)
+project(space_packer)
+
+find_package(
+	Qt5
+	COMPONENTS OpenGL Svg)
+
+if (TARGET Qt5::OpenGL AND TARGET Qt5::Svg)
+
+	if (VCG_HEADER_ONLY)
+		set(SOURCES
+			space_packer.cpp
+			${VCG_INCLUDE_DIRS}/wrap/qt/Outline2ToQImage.cpp
+			${VCG_INCLUDE_DIRS}/wrap/qt/outline2_rasterizer.cpp)
+	endif()
+
+	add_executable(space_packer
+		${SOURCES})
+
+	target_link_libraries(
+		space_packer
+		PUBLIC
+			vcglib
+			Qt5::OpenGL
+			Qt5::Svg
+		)
+else()
+	message(
+		STATUS "VCG examples - Skipping space_packer example")
+endif()

apps/sample/space_rasterized_packer/CMakeLists.txt

@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.13)
+project(space_rasterized_packer)
+
+find_package(
+	Qt5
+	COMPONENTS OpenGL Svg)
+
+if (TARGET Qt5::OpenGL AND TARGET Qt5::Svg)
+	if (VCG_HEADER_ONLY)
+		set(SOURCES
+			space_rasterized_packer.cpp
+			${VCG_INCLUDE_DIRS}/wrap/qt/Outline2ToQImage.cpp
+			${VCG_INCLUDE_DIRS}/wrap/qt/outline2_rasterizer.cpp)
+	endif()
+
+	add_executable(space_rasterized_packer
+		${SOURCES})
+
+	target_link_libraries(
+		space_rasterized_packer
+		PUBLIC
+			vcglib
+			Qt5::OpenGL
+			Qt5::Svg
+		)
+else()
+	message(
+		STATUS "VCG examples - Skipping space_rasterized_packer example")
+endif()

apps/sample/trimesh_align_pair/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_align_pair)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_align_pair.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_align_pair
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_align_pair
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_allocate/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_allocate)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_allocate.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_allocate
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_allocate
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_attribute/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_attribute)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_attribute.cpp)
+endif()
+
+add_executable(trimesh_attribute
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_attribute
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_attribute_saving/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_attribute_saving)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_attribute_saving.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_attribute_saving
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_attribute_saving
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_ball_pivoting/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_ball_pivoting)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_ball_pivoting.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_ball_pivoting
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_ball_pivoting
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_base/CMakeLists.txt

@@ -1,8 +1,16 @@
-cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.13)
-set(CMAKE_CXX_STANDARD 11)
+project(trimesh_base)
-set(CMAKE_CXX_STANDARD_REQUIRED ON) #...is required...
+
-set(CMAKE_CXX_EXTENSIONS OFF) #...without compiler extensions like gnu++11
+if (VCG_HEADER_ONLY)
-project (trimesh_base)
+	set(SOURCES
-add_executable(trimesh_base trimesh_base.cpp)
+		trimesh_base.cpp)
-include_directories(../../..)
+endif()
-include_directories(../../../eigenlib)
+
+add_executable(trimesh_base
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_base
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_closest/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_closest)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_closest.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_closest
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_closest
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_clustering/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_clustering)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_clustering.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_clustering
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_clustering
+	PUBLIC vcglib
+	)

apps/sample/trimesh_color/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_color)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_color.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_color
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_color
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_copy/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_copy)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_copy.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_copy
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_copy
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_create/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_create)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_create.cpp)
+endif()
+
+add_executable(trimesh_create
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_create
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_curvature/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_curvature)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_curvature.cpp)
+endif()
+
+add_executable(trimesh_curvature
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_curvature
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_cylinder_clipping/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_cylinder_clipping)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_cylinder_clipping.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_cylinder_clipping
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_cylinder_clipping
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_disk_parametrization/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_disk_parametrization)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_disk_parametrization.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_disk_parametrization
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_disk_parametrization
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_fitting/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_fitting)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_fitting.cpp)
+endif()
+
+add_executable(trimesh_fitting
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_fitting
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_geodesic/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_geodesic)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_geodesic.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_geodesic
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_geodesic
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_harmonic/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_harmonic)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_harmonic.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_harmonic
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_harmonic
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_hole/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_hole)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_hole.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_hole
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_hole
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_implicit_smooth/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_implicit_smooth)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_implicit_smooth.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_implicit_smooth
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_implicit_smooth
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_indexing/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_indexing)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_indexing.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_indexing
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_indexing
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_inertia/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_inertia)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_inertia.cpp)
+endif()
+
+add_executable(trimesh_inertia
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_inertia
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_intersection_mesh/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_intersection_mesh)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_intersection_mesh.cpp)
+endif()
+
+add_executable(trimesh_intersection_mesh
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_intersection_mesh
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_intersection_plane/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_intersection_plane)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_intersection_plane.cpp)
+endif()
+
+add_executable(trimesh_intersection_plane
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_intersection_plane
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_isosurface/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_isosurface)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_isosurface.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_isosurface
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_isosurface
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_join/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_join)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_join.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_join
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_join
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_kdtree/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_kdtree)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_kdtree.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_kdtree
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_kdtree
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_montecarlo_sampling/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_montecarlo_sampling)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_montecarlo_sampling.cpp)
+endif()
+
+add_executable(trimesh_montecarlo_sampling
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_montecarlo_sampling
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_normal/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_normal)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_normal.cpp)
+endif()
+
+add_executable(trimesh_normal
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_normal
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_optional/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_optional)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_optional.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_optional
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_optional
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_pointcloud_sampling/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_pointcloud_sampling)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_pointcloud_sampling.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_pointcloud_sampling
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_pointcloud_sampling
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_pointmatching/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_pointmatching)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_pointmatching.cpp)
+endif()
+
+add_executable(trimesh_pointmatching
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_pointmatching
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_ray/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_ray)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_ray.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_ray
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_ray
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_refine/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_refine)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_refine.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_refine
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_refine
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_remeshing/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_remeshing)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_remeshing.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_remeshing
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_remeshing
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_sampling/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_sampling)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_sampling.cpp)
+endif()
+
+add_executable(trimesh_sampling
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_sampling
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_sampling/trimesh_sampling.pro

@@ -1,3 +1,8 @@
 include(../common.pri)
 TARGET = trimesh_sampling
 SOURCES += trimesh_sampling.cpp
+
+# Awful..
+win32{
+  DEFINES += NOMINMAX
+}

apps/sample/trimesh_select/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_select)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_select.cpp)
+endif()
+
+add_executable(trimesh_select
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_select
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_smooth/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_smooth)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_smooth.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_smooth
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_smooth
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_split_vertex/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_split_vertex)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_split_vertex.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_split_vertex
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_split_vertex
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_texture/CMakeLists.txt

@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_texture)
+
+find_package(
+	Qt5
+	COMPONENTS OpenGL Svg)
+
+if (TARGET Qt5::OpenGL AND TARGET Qt5::Svg)
+
+	if (VCG_HEADER_ONLY)
+		set(SOURCES
+			trimesh_texture.cpp
+			${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp
+			${VCG_INCLUDE_DIRS}/wrap/qt/Outline2ToQImage.cpp
+			${VCG_INCLUDE_DIRS}/wrap/qt/outline2_rasterizer.cpp)
+	endif()
+
+	add_executable(trimesh_texture
+		${SOURCES})
+
+	target_link_libraries(
+		trimesh_texture
+		PUBLIC
+			vcglib
+			Qt5::OpenGL
+			Qt5::Svg
+		)
+else()
+	message(
+		STATUS "VCG examples - Skipping trimesh_texture example")
+endif()

apps/sample/trimesh_texture_clean/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_texture_clean)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_texture_clean.cpp)
+endif()
+
+add_executable(trimesh_texture_clean
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_texture_clean
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_topological_cut/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_topological_cut)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_topological_cut.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_topological_cut
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_topological_cut
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_topology/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_topology)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_topology.cpp)
+endif()
+
+add_executable(trimesh_topology
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_topology
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_voronoi/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_voronoi)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_voronoi.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_voronoi
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_voronoi
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_voronoiatlas/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_voronoiatlas)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_voronoiatlas.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_voronoiatlas
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_voronoiatlas
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_voronoiclustering/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_voronoiclustering)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_voronoiclustering.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_voronoiclustering
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_voronoiclustering
+	PUBLIC
+		vcglib
+	)

apps/sample/trimesh_voronoisampling/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_voronoisampling)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_voronoisampling.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(trimesh_voronoisampling
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_voronoisampling
+	PUBLIC
+		vcglib
+	)

apps/tridecimator/CMakeLists.txt

@@ -1,2 +1,17 @@
+cmake_minimum_required(VERSION 3.13)
 project (tridecimator)
-add_executable(tridecimator tridecimator.cpp ../../wrap/ply/plylib.cpp)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		tridecimator.cpp
+		${VCG_INCLUDE_DIRS}/wrap/ply/plylib.cpp)
+endif()
+
+add_executable(tridecimator
+	${SOURCES})
+
+target_link_libraries(
+	tridecimator
+	PUBLIC
+		vcglib
+	)

vcg/complex/algorithms/clean.h

@@ -168,6 +168,7 @@ public:
 	typedef CleanMeshType MeshType;
 	typedef typename MeshType::VertexType           VertexType;
 	typedef typename MeshType::VertexPointer        VertexPointer;
+	typedef typename MeshType::ConstVertexPointer   ConstVertexPointer;
 	typedef typename MeshType::VertexIterator       VertexIterator;
 	typedef typename MeshType::ConstVertexIterator  ConstVertexIterator;
 	typedef typename MeshType::EdgeIterator         EdgeIterator;
@@ -941,20 +942,28 @@ public:
 	* as a intuitive proof think to a internal vertex that is collapsed onto a border of a polygon:
 	* it deletes 2 faces, 1 faux edges and 1 vertex so to keep the balance you have to add back the removed vertex.
 	*/
-	static int CountBitLargePolygons(MeshType &m)
+	static int CountBitLargePolygons(const MeshType &m)
 	{
-		tri::RequirePerFaceFlags(m);
+		//note - using unordered_map to set visited vertices because
-		UpdateFlags<MeshType>::VertexSetV(m);
+		//the mesh is const (before, the function used vertex flags...).
+		//could be used std::vector<bool> if the vertex has the Index()
+		//member function...
+		std::unordered_map<ConstVertexPointer, bool> vertVisited;
+		for (ConstVertexIterator vi = m.vert.begin(); vi != m.vert.end(); ++vi)
+			if (!vi->IsD()) vertVisited[&(*vi)] = true;
+
 		// First loop Clear all referenced vertices
-		for (FaceIterator fi = m.face.begin(); fi != m.face.end(); ++fi)
+		for (ConstFaceIterator fi = m.face.begin(); fi != m.face.end(); ++fi)
 			if (!fi->IsD())
-				for(int i=0;i<3;++i) fi->V(i)->ClearV();
+				for(int i=0;i<3;++i){
+					vertVisited[fi->V(i)] = false;
+				}
 
 
 		// Second Loop, count (twice) faux edges and mark all vertices touched by non faux edges
 		// (e.g vertexes on the boundary of a polygon)
 		int countE = 0;
-		for (FaceIterator fi = m.face.begin(); fi != m.face.end(); ++fi)
+		for (ConstFaceIterator fi = m.face.begin(); fi != m.face.end(); ++fi)
 			if (!fi->IsD())  {
 				for(int i=0;i<3;++i)
 				{
@@ -962,16 +971,16 @@ public:
 						countE++;
 					else
 					{
-						fi->V0(i)->SetV();
+						vertVisited[fi->V0(i)] = true;
-						fi->V1(i)->SetV();
+						vertVisited[fi->V1(i)] = true;
 					}
 				}
 			}
 		// Third Loop, count the number of referenced vertexes that are completely surrounded by faux edges.
 
 		int countV = 0;
-		for (VertexIterator vi = m.vert.begin(); vi != m.vert.end(); ++vi)
+		for (ConstVertexIterator vi = m.vert.begin(); vi != m.vert.end(); ++vi)
-			if (!vi->IsD() && !vi->IsV()) countV++;
+			if (!vi->IsD() && !(vertVisited[&(*vi)])) countV++;
 
 		return m.fn - countE/2 + countV ;
 	}
@@ -1520,7 +1529,7 @@ public:
 		std::vector< VertexPointer > minVertVec;
 		std::vector< VertexPointer > maxVertVec;
 
-		// The set of directions to be choosen
+		// The set of directions to be chosen
 		std::vector< CoordType > dirVec;
 		dirVec.push_back(CoordType(1,0,0));
 		dirVec.push_back(CoordType(0,1,0));

vcg/complex/algorithms/harmonic.h

@@ -235,19 +235,19 @@ public:
         ScalarT cotB = 0;
 
         // Get the edge (a pair of vertices)
-        VertexType * v0 = f.cV(edge);
+		const VertexType * v0 = f.cV(edge);
-        VertexType * v1 = f.cV((edge+1)%f.VN());
+		const VertexType * v1 = f.cV((edge+1)%f.VN());
 
         if (fp != NULL &&
             fp != &f)
         {
             // not a border edge
-            VertexType * vb = fp->cV((f.cFFi(edge)+2)%fp->VN());
+			const VertexType * vb = fp->cV((f.cFFi(edge)+2)%fp->VN());
             ScalarT angleB = ComputeAngle<ScalarT>(v0, vb, v1);
             cotB = vcg::math::Cos(angleB) / vcg::math::Sin(angleB);
         }
 
-        VertexType * va = f.cV((edge+2)%f.VN());
+		const VertexType * va = f.cV((edge+2)%f.VN());
         ScalarT angleA = ComputeAngle<ScalarT>(v0, va, v1);
         cotA = vcg::math::Cos(angleA) / vcg::math::Sin(angleA);
 

vcg/complex/algorithms/isotropic_remeshing.h

@@ -813,7 +813,7 @@ private:
         {
             if (faces[i]->IsFaceEdgeS(VtoE(vIdxes[i], (vIdxes[i]+1)%3)) && !vcg::tri::IsMarked(*params.m, faces[i]->cV1(vIdxes[i])))
             {
-                vcg::tri::Mark(*params.m,faces[i]->cV1(vIdxes[i]));
+				vcg::tri::Mark(*params.m,faces[i]->V1(vIdxes[i]));
                 incidentFeatures++;
                 CoordType movingEdgeVector0 = (faces[i]->cP1(vIdxes[i]) - faces[i]->cP(vIdxes[i])).Normalize();
                 if (std::fabs(movingEdgeVector0 * dEdgeVector) < .9f || !p.IsEdgeS())
@@ -821,7 +821,7 @@ private:
             }
             if (faces[i]->IsFaceEdgeS(VtoE(vIdxes[i], (vIdxes[i]+2)%3)) && !vcg::tri::IsMarked(*params.m, faces[i]->cV2(vIdxes[i])))
             {
-                vcg::tri::Mark(*params.m,faces[i]->cV2(vIdxes[i]));
+				vcg::tri::Mark(*params.m,faces[i]->V2(vIdxes[i]));
                 incidentFeatures++;
                 CoordType movingEdgeVector1 = (faces[i]->cP2(vIdxes[i]) - faces[i]->cP(vIdxes[i])).Normalize();
                 if (std::fabs(movingEdgeVector1 * dEdgeVector) < .9f || !p.IsEdgeS())

vcg/complex/algorithms/mesh_assert.h

@@ -23,6 +23,10 @@
 #ifndef __VCGLIB_MESH_ASSERT
 #define __VCGLIB_MESH_ASSERT
 
+#include <vcg/complex/exception.h>
+#include <vcg/simplex/edge/pos.h>
+#include <vcg/complex/algorithms/update/flag.h>
+
 namespace vcg {
 namespace tri {
 /**

vcg/complex/algorithms/parametrization/uv_utils.h

@@ -96,11 +96,10 @@ public:
     }
 
     ///calculate the BBox in UV space
-    static vcg::Box2<ScalarType> PerVertUVBox(MeshType &m)
+    static vcg::Box2<ScalarType> PerVertUVBox(const MeshType &m)
     {
         vcg::Box2<ScalarType> UVBox;
-        VertexIterator vi;
+        for (auto vi=m.vert.begin();vi!=m.vert.end();vi++)
-        for (vi=m.vert.begin();vi!=m.vert.end();vi++)
         {
             if ((*vi).IsD()) continue;
             UVBox.Add((*vi).T().P());

vcg/complex/algorithms/point_sampling.h

@@ -35,6 +35,7 @@ sampling strategies (montecarlo, stratified etc).
 #ifndef __VCGLIB_POINT_SAMPLING
 #define __VCGLIB_POINT_SAMPLING
 
+#include <random>
 
 #include <vcg/math/random_generator.h>
 #include <vcg/complex/algorithms/closest.h>
@@ -712,8 +713,10 @@ static void	FillAndShuffleFacePointerVector(MeshType & m, std::vector<FacePointe
 
     assert((int)faceVec.size()==m.fn);
 
-    unsigned int (*p_myrandom)(unsigned int) = RandomInt;
+    //unsigned int (*p_myrandom)(unsigned int) = RandomInt;
-    std::random_shuffle(faceVec.begin(),faceVec.end(), p_myrandom);
+    std::random_device rd;
+    std::mt19937 g(rd());
+    std::shuffle(faceVec.begin(),faceVec.end(), g);
 }
 static void	FillAndShuffleVertexPointerVector(MeshType & m, std::vector<VertexPointer> &vertVec)
 {
@@ -722,8 +725,10 @@ static void	FillAndShuffleVertexPointerVector(MeshType & m, std::vector<VertexPo
 
     assert((int)vertVec.size()==m.vn);
 
-    unsigned int (*p_myrandom)(unsigned int) = RandomInt;
+    //unsigned int (*p_myrandom)(unsigned int) = RandomInt;
-    std::random_shuffle(vertVec.begin(),vertVec.end(), p_myrandom);
+    std::random_device rd;
+    std::mt19937 g(rd());
+    std::shuffle(vertVec.begin(),vertVec.end(), g);
 }
 
 /// Sample the vertices in a uniform way. Each vertex has the same probabiltiy of being chosen.
@@ -1000,7 +1005,7 @@ static void AllEdge(MeshType & m, VertexSampler &ps)
 
 // Regular Uniform Edge sampling
 // Each edge is subdivided in a number of pieces proprtional to its length
-// Sample are choosen without touching the vertices.
+// Samples are chosen without touching the vertices.
 
 static void EdgeUniform(MeshType & m, VertexSampler &ps,int sampleNum, bool sampleFauxEdge=true)
 {
@@ -1928,8 +1933,10 @@ static void PoissonDiskPruning(VertexSampler &ps, MeshType &montecarloMesh,
     if(pp.adaptiveRadiusFlag)
         InitRadiusHandleFromQuality(montecarloMesh, rH, diskRadius, pp.radiusVariance, pp.invertQuality);
 
-    unsigned int (*p_myrandom)(unsigned int) = RandomInt;
+    //unsigned int (*p_myrandom)(unsigned int) = RandomInt;
-    std::random_shuffle(montecarloSHT.AllocatedCells.begin(),montecarloSHT.AllocatedCells.end(), p_myrandom);
+    std::random_device rd;
+    std::mt19937 g(rd());
+    std::shuffle(montecarloSHT.AllocatedCells.begin(),montecarloSHT.AllocatedCells.end(), g);
     int t1 = clock();
     pp.pds.montecarloSampleNum = montecarloMesh.vn;
     pp.pds.sampleNum =0;
@@ -2062,8 +2069,10 @@ static void HierarchicalPoissonDisk(MeshType &origMesh, VertexSampler &ps, MeshT
             montecarloSHT.UpdateAllocatedCells();
         }
         // shuffle active cells
-        unsigned int (*p_myrandom)(unsigned int) = RandomInt;
+        //unsigned int (*p_myrandom)(unsigned int) = RandomInt;
-        std::random_shuffle(montecarloSHT.AllocatedCells.begin(),montecarloSHT.AllocatedCells.end(), p_myrandom);
+        std::random_device rd;
+        std::mt19937 g(rd());
+        std::shuffle(montecarloSHT.AllocatedCells.begin(),montecarloSHT.AllocatedCells.end(), g);
 
         // generate a sample inside C by choosing one of the contained pre-generated samples
         //////////////////////////////////////////////////////////////////////////////////////////

vcg/complex/algorithms/polygon_support.h

@@ -141,7 +141,8 @@ namespace tri {
         {
             std::vector<typename TriMeshType::VertexPointer> vs;// vertices of the polygon
             ExtractPolygon(&*tfi,vs);
-            std::reverse(vs.begin(),vs.end());
+			if (vs.size() > 3)
+				std::reverse(vs.begin(), vs.end());
             //now vs  contains all the vertices of the polygon (still in the trimesh)
             if (vs.size()==0)continue;
             typename PolyMeshType::FaceIterator pfi =  tri::Allocator<PolyMeshType>::AddFaces(pm,1);

vcg/complex/algorithms/refine.h

@@ -303,7 +303,7 @@ Given a mesh the following function refines it according to two functor objects:
 
 - a predicate that tells if a given edge must be splitted
 
-- a functor that gives you the new poistion of the created vertices (starting from an edge)
+- a functor that gives you the new position of the created vertices (starting from an edge)
 
 If RefineSelected is true only selected faces are taken into account for being splitted.
 

vcg/complex/algorithms/textcoord_optimization.h

@@ -73,7 +73,7 @@ public:
   // initializes on current geometry
   virtual void TargetCurrentGeometry()=0;
 
-  // performs an interation. Returns largest movement.
+  // performs an iteration. Returns largest movement.
   virtual ScalarType Iterate()=0;
 
   // performs an iteration (faster, but it does not tell how close it is to stopping)
@@ -132,7 +132,7 @@ AREA PRESERVING TEXTURE OPTIMIZATION
 
 as in: Degener, P., Meseth, J., Klein, R.
        "An adaptable surface parameterization method."
-       Proc. of the 12th International Meshing oundtable, 201–213 [2003].
+       Proc. of the 12th International Meshing oundtable, 201-213 [2003].
 
 Features:
 

vcg/complex/algorithms/update/flag.h

@@ -23,6 +23,10 @@
 #ifndef __VCG_TRI_UPDATE_FLAGS
 #define __VCG_TRI_UPDATE_FLAGS
 
+#include <vcg/simplex/face/pos.h>
+#include <vcg/simplex/tetrahedron/pos.h>
+#include <vcg/simplex/edge/pos.h>
+
 namespace vcg {
 namespace tri {
 /// \ingroup trimesh

vcg/complex/algorithms/update/normal.h

@@ -24,8 +24,13 @@
 #ifndef __VCG_TRI_UPDATE_NORMALS
 #define __VCG_TRI_UPDATE_NORMALS
 
+#include <vcg/space/triangle3.h>
+#include <vcg/complex/base.h>
+
 #include <vcg/complex/algorithms/polygon_support.h>
 
+#include "flag.h"
+
 namespace vcg {
 namespace tri {
 

vcg/complex/algorithms/update/selection.h

@@ -23,6 +23,13 @@
 #ifndef __VCG_TRI_UPDATE_SELECTION
 #define __VCG_TRI_UPDATE_SELECTION
 
+#include <deque>
+
+#include <vcg/complex/base.h>
+#include <vcg/simplex/face/topology.h>
+
+#include "flag.h"
+
 namespace vcg {
 namespace tri {
 /// \ingroup trimesh

vcg/complex/algorithms/update/topology.h

@@ -24,6 +24,12 @@
 #ifndef __VCG_TRI_UPDATE_TOPOLOGY
 #define __VCG_TRI_UPDATE_TOPOLOGY
 
+#include <cassert>
+
+#include <vcg/complex/base.h>
+#include <vcg/simplex/face/topology.h>
+#include <vcg/simplex/edge/pos.h>
+
 namespace vcg {
 namespace tri {
 /// \ingroup trimesh

vcg/complex/allocate.h

@@ -23,9 +23,12 @@
 #ifndef __VCGLIB_TRIALLOCATOR
 #define __VCGLIB_TRIALLOCATOR
 
-#ifndef __VCG_MESH
+#include <vector>
-#error "This file should not be included alone. It is automatically included by complex.h"
+#include <set>
-#endif
+
+#include <vcg/container/simple_temporary_data.h>
+
+#include "used_types.h"
 
 namespace vcg {
 namespace tri {
@@ -1423,7 +1426,8 @@ public:
 
 public:
 
-  /*! \brief Check if an handle to a Per-Vertex Attribute is valid
+  /**
+   * @brief Checks if a handle to a Per-Vertex Attribute is valid
    */
   template <class ATTR_TYPE>
   static
@@ -1434,6 +1438,18 @@ public:
     return false;
   }
 
+  /**
+   * @brief Checks if a const handle to a Per-Vertex Attribute is valid
+   */
+  template <class ATTR_TYPE>
+  static
+  bool IsValidHandle( const MeshType & m,  const typename MeshType::template ConstPerVertexAttributeHandle<ATTR_TYPE> & a){
+    if(a._handle == nullptr) return false;
+    for(AttrIterator i = m.vert_attr.begin(); i!=m.vert_attr.end();++i)
+      if ( (*i).n_attr == a.n_attr ) return true;
+    return false;
+  }
+
   /*! \brief Add a Per-Vertex Attribute of the given ATTR_TYPE with the given name.
 
       No attribute with that name must exists (even of different type)
@@ -1483,20 +1499,16 @@ public:
     return AddPerVertexAttribute<ATTR_TYPE>(m,name);
   }
 
-  /*! \brief gives a handle to a per-vertex attribute with a given name and ATTR_TYPE
+  /*! \brief gives a const handle to a per-vertex attribute with a given name and ATTR_TYPE
       \returns a valid handle. If the name is not empty and an attribute with that name and type exists returns a handle to it.
         Otherwise, returns an invalid handle (check it using IsValidHandle).
       */
   template <class ATTR_TYPE>
   static
-  typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>
+  typename MeshType::template ConstPerVertexAttributeHandle<ATTR_TYPE>
   GetPerVertexAttribute( const MeshType & m, std::string name = std::string("")){
-    typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE> h;
-    if(!name.empty()){
     return FindPerVertexAttribute<ATTR_TYPE>(m,name);
   }
-    return typename MeshType:: template PerVertexAttributeHandle<ATTR_TYPE>(nullptr,0);
-  }
 
   /*! \brief Try to retrieve an handle to an attribute with a given name and ATTR_TYPE
       \returns a invalid handle if no attribute with that name and type exists.
@@ -1526,37 +1538,40 @@ public:
   }
 
   /**
-   * Same as the one above, but without modifying the attribute if it is found.
+   * @brief Try to retrieve a const handle to an attribute with a given name
-   * (A "find" function should never modify the container in which is looking for..)
+   * and ATTR_TYPE, from the given const mesh.
-   * Input mesh is const.
+   * If not found, an invalid handle will be returned.
+   * Check it with the function IsValidHandle
    */
   template <class ATTR_TYPE>
-  static typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>
+  static typename MeshType::template ConstPerVertexAttributeHandle<ATTR_TYPE>
   FindPerVertexAttribute( const MeshType & m, const std::string & name)
   {
-    assert(!name.empty());
+    if(!name.empty()){
       PointerToAttribute h1; h1._name = name;
       typename std::set<PointerToAttribute > :: iterator i;
 
       i =m.vert_attr.find(h1);
-    if(i!=m.vert_attr.end())
+      if(i!=m.vert_attr.end()){
         if((*i)._sizeof == sizeof(ATTR_TYPE) ){
-        return typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
+          return typename MeshType::template ConstPerVertexAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
         }
-    return typename MeshType:: template PerVertexAttributeHandle<ATTR_TYPE>(nullptr,0);
+      }
+    }
+    return typename MeshType:: template ConstPerVertexAttributeHandle<ATTR_TYPE>(nullptr,0);
   }
 
   /*! \brief query the mesh for all the attributes per vertex
       \returns the name of all attributes with a non-empy name.
       */
   template <class ATTR_TYPE>
-  static void GetAllPerVertexAttribute(MeshType & m, std::vector<std::string> &all){
+  static void GetAllPerVertexAttribute(const MeshType & m, std::vector<std::string> &all){
     all.clear();
     typename std::set<PointerToAttribute > ::const_iterator i;
     for(i = m.vert_attr.begin(); i != m.vert_attr.end(); ++i )
       if(!(*i)._name.empty())
       {
-        typename MeshType:: template PerVertexAttributeHandle<ATTR_TYPE> hh;
+        typename MeshType:: template ConstPerVertexAttributeHandle<ATTR_TYPE> hh;
         hh = Allocator<MeshType>:: template  FindPerVertexAttribute <ATTR_TYPE>(m,(*i)._name);
         if(IsValidHandle<ATTR_TYPE>(m,hh))
           all.push_back((*i)._name);
@@ -1616,6 +1631,15 @@ public:
     return false;
   }
 
+  template <class ATTR_TYPE>
+  static
+  bool IsValidHandle( const MeshType & m,  const typename MeshType::template ConstPerEdgeAttributeHandle<ATTR_TYPE> & a){
+    if(a._handle == nullptr) return false;
+    for(AttrIterator i = m.edge_attr.begin(); i!=m.edge_attr.end();++i)
+      if ( (*i).n_attr == a.n_attr ) return true;
+    return false;
+  }
+
   template <class ATTR_TYPE>
   static
   typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE>
@@ -1662,6 +1686,12 @@ public:
     return AddPerEdgeAttribute<ATTR_TYPE>(m,name);
   }
 
+  template <class ATTR_TYPE>
+  static
+  typename MeshType::template ConstPerEdgeAttributeHandle<ATTR_TYPE>
+  GetPerEdgeAttribute( const MeshType & m, std::string name = std::string("")){
+    return FindPerEdgeAttribute<ATTR_TYPE>(m,name);
+  }
 
   template <class ATTR_TYPE>
   static
@@ -1688,6 +1718,24 @@ public:
     return typename MeshType:: template PerEdgeAttributeHandle<ATTR_TYPE>(nullptr,0);
   }
 
+  template <class ATTR_TYPE>
+  static
+  typename MeshType::template ConstPerEdgeAttributeHandle<ATTR_TYPE>
+  FindPerEdgeAttribute( const MeshType & m, const std::string & name){
+    if(!name.empty()){
+      PointerToAttribute h1; h1._name = name;
+      typename std::set<PointerToAttribute > ::const_iterator i;
+
+      i =m.edge_attr.find(h1);
+      if(i!=m.edge_attr.end()){
+        if((*i)._sizeof == sizeof(ATTR_TYPE) ){
+          return typename MeshType::template ConstPerEdgeAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
+        }
+      }
+    }
+    return typename MeshType:: template ConstPerEdgeAttributeHandle<ATTR_TYPE>(nullptr,0);
+  }
+
   template <class ATTR_TYPE>
   static void GetAllPerEdgeAttribute(const MeshType & m, std::vector<std::string> &all){
     all.clear();
@@ -1695,7 +1743,7 @@ public:
     for(i = m.edge_attr.begin(); i != m.edge_attr.end(); ++i )
       if(!(*i)._name.empty())
       {
-        typename MeshType:: template PerEdgeAttributeHandle<ATTR_TYPE> hh;
+        typename MeshType:: template ConstPerEdgeAttributeHandle<ATTR_TYPE> hh;
         hh = Allocator<MeshType>:: template  FindPerEdgeAttribute <ATTR_TYPE>(m,(*i)._name);
         if(IsValidHandle<ATTR_TYPE>(m,hh))
           all.push_back((*i)._name);
@@ -1731,6 +1779,9 @@ public:
   }
 
   /// Per Face Attributes
+  /**
+   * @brief Checks if a handle to a Per-Face attribute is valid
+   */
   template <class ATTR_TYPE>
   static
   bool IsValidHandle( const MeshType & m,  const typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE> & a){
@@ -1740,6 +1791,18 @@ public:
     return false;
   }
 
+  /**
+   * @brief Checks if a const handle to a Per-Face attribute is valid
+   */
+  template <class ATTR_TYPE>
+  static
+  bool IsValidHandle( const MeshType & m,  const typename MeshType::template ConstPerFaceAttributeHandle<ATTR_TYPE> & a){
+    if(a._handle == nullptr) return false;
+    for(AttrIterator i = m.face_attr.begin(); i!=m.face_attr.end();++i)
+      if ( (*i).n_attr == a.n_attr ) return true;
+    return false;
+  }
+
   template <class ATTR_TYPE>
   static
   typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>
@@ -1792,14 +1855,10 @@ public:
       */
   template <class ATTR_TYPE>
   static
-  typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>
+  typename MeshType::template ConstPerFaceAttributeHandle<ATTR_TYPE>
   GetPerFaceAttribute( const MeshType & m, std::string name = std::string("")){
-    typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE> h;
-    if(!name.empty()){
     return FindPerFaceAttribute<ATTR_TYPE>(m,name);
   }
-    return typename MeshType:: template PerFaceAttributeHandle<ATTR_TYPE>(nullptr,0);
-  }
 
   template <class ATTR_TYPE>
   static
@@ -1826,34 +1885,37 @@ public:
   }
   
   /**
-   * Same as the one above, but without modifying the attribute if it is found.
+   * @brief Try to retrieve a const handle to an attribute with a given name
-   * (A "find" function should never modify the container in which is looking for..)
+   * and ATTR_TYPE, from the given const mesh.
-   * Input mesh is const.
+   * If not found, an invalid handle will be returned.
+   * Check it with the function IsValidHandle
    */
   template <class ATTR_TYPE>
   static
-  typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>
+  typename MeshType::template ConstPerFaceAttributeHandle<ATTR_TYPE>
   FindPerFaceAttribute( const MeshType & m, const std::string & name){
-    assert(!name.empty());
+    if(!name.empty()){
       PointerToAttribute h1; h1._name = name;
       typename std::set<PointerToAttribute > ::iterator i;
 
       i =m.face_attr.find(h1);
-    if(i!=m.face_attr.end())
+      if(i!=m.face_attr.end()){
         if((*i)._sizeof == sizeof(ATTR_TYPE) ){
-        return typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
+          return typename MeshType::template ConstPerFaceAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
         }
-    return typename MeshType:: template PerFaceAttributeHandle<ATTR_TYPE>(nullptr,0);
+      }
+    }
+    return typename MeshType:: template ConstPerFaceAttributeHandle<ATTR_TYPE>(nullptr,0);
   }
 
   template <class ATTR_TYPE>
-  static void GetAllPerFaceAttribute(MeshType & m, std::vector<std::string> &all){
+  static void GetAllPerFaceAttribute(const MeshType & m, std::vector<std::string> &all){
     all.clear();
     typename std::set<PointerToAttribute > :: const_iterator i;
     for(i = m.face_attr.begin(); i != m.face_attr.end(); ++i )
       if(!(*i)._name.empty())
       {
-        typename MeshType:: template PerFaceAttributeHandle<ATTR_TYPE> hh;
+        typename MeshType:: template ConstPerFaceAttributeHandle<ATTR_TYPE> hh;
         hh = Allocator<MeshType>:: template  FindPerFaceAttribute <ATTR_TYPE>(m,(*i)._name);
         if(IsValidHandle<ATTR_TYPE>(m,hh))
           all.push_back((*i)._name);
@@ -1898,6 +1960,17 @@ public:
     return false;
   }
 
+  template <class ATTR_TYPE>
+  static bool IsValidHandle(const MeshType & m, const typename MeshType::template ConstPerTetraAttributeHandle<ATTR_TYPE> & a)
+  {
+    if (a._handle == nullptr)
+      return false;
+    for (AttrIterator i = m.tetra_attr.begin(); i != m.tetra_attr.end(); ++i)
+      if ((*i).n_attr == a.n_attr)
+        return true;
+    return false;
+  }
+
   template <class ATTR_TYPE>
   static typename MeshType::template PerTetraAttributeHandle<ATTR_TYPE> AddPerTetraAttribute(MeshType & m, std::string name)
   {
@@ -1943,6 +2016,12 @@ public:
     return AddPerTetraAttribute<ATTR_TYPE>(m, name);
   }
 
+  template <class ATTR_TYPE>
+  static typename MeshType::template ConstPerTetraAttributeHandle<ATTR_TYPE> GetPerTetraAttribute(const MeshType &m, std::string name = std::string(""))
+  {
+    return FindPerTetraAttribute<ATTR_TYPE>(m, name);
+  }
+
   template <class ATTR_TYPE>
   static typename MeshType::template PerTetraAttributeHandle<ATTR_TYPE> FindPerTetraAttribute(MeshType &m, const std::string &name)
   {
@@ -1970,14 +2049,33 @@ public:
   }
 
   template <class ATTR_TYPE>
-  static void GetAllPerTetraAttribute(MeshType &m, std::vector<std::string> &all)
+  static typename MeshType::template ConstPerTetraAttributeHandle<ATTR_TYPE> FindPerTetraAttribute(MeshType &m, const std::string &name)
+  {
+    if(!name.empty()){
+      PointerToAttribute h1;
+      h1._name = name;
+      typename std::set<PointerToAttribute>::iterator i;
+
+      i = m.tetra_attr.find(h1);
+      if (i != m.tetra_attr.end()){
+        if ((*i)._sizeof == sizeof(ATTR_TYPE))
+        {
+          return typename MeshType::template ConstPerTetraAttributeHandle<ATTR_TYPE>((*i)._handle, (*i).n_attr);
+        }
+      }
+    }
+    return typename MeshType::template ConstPerTetraAttributeHandle<ATTR_TYPE>(nullptr, 0);
+  }
+
+  template <class ATTR_TYPE>
+  static void GetAllPerTetraAttribute(const MeshType &m, std::vector<std::string> &all)
   {
     all.clear();
     typename std::set<PointerToAttribute>::const_iterator i;
     for (i = m.tetra_attr.begin(); i != m.tetra_attr.end(); ++i)
       if (!(*i)._name.empty())
       {
-        typename MeshType::template PerTetraAttributeHandle<ATTR_TYPE> hh;
+        typename MeshType::template ConstPerTetraAttributeHandle<ATTR_TYPE> hh;
         hh = Allocator<MeshType>::template FindPerTetraAttribute<ATTR_TYPE>(m, (*i)._name);
         if (IsValidHandle<ATTR_TYPE>(m, hh))
           all.push_back((*i)._name);
@@ -2026,6 +2124,15 @@ public:
     return false;
   }
 
+  template <class ATTR_TYPE>
+  static
+  bool IsValidHandle(const MeshType & m,  const typename MeshType::template ConstPerMeshAttributeHandle<ATTR_TYPE> & a){
+    if(a._handle == nullptr) return false;
+    for(AttrIterator i = m.mesh_attr.begin(); i!=m.mesh_attr.end();++i)
+      if ( (*i).n_attr == a.n_attr ) return true;
+    return false;
+  }
+
   template <class ATTR_TYPE>
   static
   typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE>
@@ -2064,6 +2171,13 @@ public:
     return AddPerMeshAttribute<ATTR_TYPE>(m,name);
   }
 
+  template <class ATTR_TYPE>
+  static
+  typename MeshType::template ConstPerMeshAttributeHandle<ATTR_TYPE>
+  GetPerMeshAttribute(const MeshType & m, std::string name = std::string("")){
+    return FindPerMeshAttribute<ATTR_TYPE>(m,name);
+  }
+
   template <class ATTR_TYPE>
   static
   typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE>
@@ -2090,6 +2204,24 @@ public:
     return typename MeshType:: template PerMeshAttributeHandle<ATTR_TYPE>(nullptr,0);
   }
 
+  template <class ATTR_TYPE>
+  static
+  typename MeshType::template ConstPerMeshAttributeHandle<ATTR_TYPE>
+  FindPerMeshAttribute( const MeshType & m, const std::string & name){
+    if (!name.empty()){
+      PointerToAttribute h1; h1._name = name;
+      typename std::set<PointerToAttribute > ::iterator i;
+      i =m.mesh_attr.find(h1);
+      if(i!=m.mesh_attr.end()){
+        if((*i)._sizeof == sizeof(ATTR_TYPE)  ){
+          return typename MeshType::template ConstPerMeshAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
+        }
+      }
+    }
+
+    return typename MeshType:: template ConstPerMeshAttributeHandle<ATTR_TYPE>(nullptr,0);
+  }
+
   template <class ATTR_TYPE>
   static void GetAllPerMeshAttribute(const MeshType & m, std::vector<std::string> &all){
     typename std::set<PointerToAttribute > :: iterator i;
@@ -2245,7 +2377,7 @@ public:
 
     // copy the padded container in the new one
     char * ptr = (char*)( ((Attribute<ATTR_TYPE> *)pa._handle)->DataBegin());
-    memcpy((void*)_handle->attribute ,(void*) &(ptr[0]) ,sizeof(ATTR_TYPE));
+    memcpy((void*)_handle->DataBegin() ,(void*) &(ptr[0]) ,sizeof(ATTR_TYPE));
 
     // remove the padded container
     delete ( (Attribute<ATTR_TYPE> *) pa._handle);

vcg/complex/append.h

@@ -23,9 +23,8 @@
 #ifndef __VCGLIB_APPEND
 #define __VCGLIB_APPEND
 
-#ifndef __VCG_MESH
+#include <vcg/complex/allocate.h>
-#error "This file should not be included alone. It is automatically included by complex.h"
+#include <vcg/complex/algorithms/update/selection.h>
-#endif
 
 namespace vcg {
 namespace tri {
@@ -674,12 +673,15 @@ static void MeshAppendConst(
 	typename std::set< PointerToAttribute >::iterator al, ar;
 
 	// per vertex attributes
-  for(al = ml.vert_attr.begin(); al != ml.vert_attr.end(); ++al)
+	for (al = ml.vert_attr.begin(); al != ml.vert_attr.end(); ++al)
-    if(!(*al)._name.empty()){
+		if(!(*al)._name.empty())
+		{
 			ar = mr.vert_attr.find(*al);
-      if(ar!= mr.vert_attr.end()){
+			if (ar != mr.vert_attr.end())
+			{
 				id_r = 0;
-        for (auto v: mr.vert){
+				for (const auto & v : mr.vert)
+				{
 					if( !v.IsD() && (!selected || v.IsS()))
 						(*al)._handle->CopyValue(remap.vert[Index(mr,v)], id_r, (*ar)._handle);
 					++id_r;
@@ -688,12 +690,15 @@ static void MeshAppendConst(
 		}
 
 	// per edge attributes
-  for(al = ml.edge_attr.begin(); al != ml.edge_attr.end(); ++al)
+	for (al = ml.edge_attr.begin(); al != ml.edge_attr.end(); ++al)
-    if(!(*al)._name.empty()){
+		if (!(*al)._name.empty())
+		{
 			ar = mr.edge_attr.find(*al);
-      if(ar!= mr.edge_attr.end()){
+			if (ar!= mr.edge_attr.end())
+			{
 				id_r = 0;
-        for (auto e: mr.edge){
+				for (const auto & e : mr.edge)
+				{
 					if( !e.IsD() && (!selected || e.IsS()))
 						(*al)._handle->CopyValue(remap.edge[Index(mr,e)], id_r, (*ar)._handle);
 					++id_r;
@@ -702,12 +707,15 @@ static void MeshAppendConst(
 		}
 
 	// per face attributes
-  for(al = ml.face_attr.begin(); al != ml.face_attr.end(); ++al)
+	for (al = ml.face_attr.begin(); al != ml.face_attr.end(); ++al)
-    if(!(*al)._name.empty()){
+		if (!(*al)._name.empty())
+		{
 			ar = mr.face_attr.find(*al);
-      if(ar!= mr.face_attr.end()){
+			if (ar!= mr.face_attr.end())
+			{
 				id_r = 0;
-        for (auto f: mr.face) {
+				for (const auto & f : mr.face)
+				{
 					if( !f.IsD() && (!selected || f.IsS()))
 						(*al)._handle->CopyValue(remap.face[Index(mr,f)], id_r, (*ar)._handle);
 					++id_r;
@@ -716,12 +724,15 @@ static void MeshAppendConst(
 		}
 
 	// per tetra attributes
-  for(al = ml.tetra_attr.begin(); al != ml.tetra_attr.end(); ++al)
+	for (al = ml.tetra_attr.begin(); al != ml.tetra_attr.end(); ++al)
-    if(!(*al)._name.empty()){
+		if (!(*al)._name.empty())
+		{
 			ar = mr.tetra_attr.find(*al);
-      if(ar!= mr.tetra_attr.end()){
+			if (ar!= mr.tetra_attr.end())
+			{
 				id_r = 0;
-        for (auto t: mr.tetra) {
+				for (const auto & t: mr.tetra)
+				{
 					if( !t.IsD() && (!selected || t.IsS()))
 						(*al)._handle->CopyValue(remap.tetra[Index(mr, t)], id_r, (*ar)._handle);
 					++id_r;

vcg/complex/base.h

@@ -20,12 +20,17 @@
 * for more details.                                                         *
 *                                                                           *
 ****************************************************************************/
-#ifndef __VCG_MESH
+
-#error "This file should not be included alone. It is automatically included by complex.h"
-#endif
 #ifndef __VCG_COMPLEX_BASE
 #define __VCG_COMPLEX_BASE
 
+#include <typeindex>
+#include <set>
+
+#include <vcg/container/simple_temporary_data.h>
+
+#include "used_types.h"
+
 namespace vcg {
 
 class PointerToAttribute
@@ -297,6 +302,25 @@ public:
 		void resize(size_t /*size*/) { };
 	};
 
+	template <class ATTR_TYPE, class CONT>
+	class ConstAttributeHandle{
+	public:
+		ConstAttributeHandle(){_handle=(SimpleTempData<CONT,ATTR_TYPE> *)nullptr;}
+		ConstAttributeHandle( const void *ah,const int & n):_handle ( (const SimpleTempData<CONT,ATTR_TYPE> *)ah ),n_attr(n){}
+
+
+		//pointer to the SimpleTempData that stores the attribute
+		const SimpleTempData<CONT,ATTR_TYPE> * _handle;
+
+		// its attribute number
+		int n_attr;
+
+		// access function
+		template <class RefType>
+		const ATTR_TYPE & operator [](const RefType  & i) const {return (*_handle)[i];}
+		void resize(size_t /*size*/) { };
+	};
+
 	template <class ATTR_TYPE>
 	class PerVertexAttributeHandle: public AttributeHandle<ATTR_TYPE,VertContainer>{
 	public:
@@ -304,6 +328,12 @@ public:
 		PerVertexAttributeHandle( void *ah,const int & n):AttributeHandle<ATTR_TYPE,VertContainer>(ah,n){}
 	};
 
+	template <class ATTR_TYPE>
+	class ConstPerVertexAttributeHandle: public ConstAttributeHandle<ATTR_TYPE,VertContainer>{
+	public:
+		ConstPerVertexAttributeHandle():ConstAttributeHandle<ATTR_TYPE,VertContainer>(){}
+		ConstPerVertexAttributeHandle( const void *ah,const int & n):ConstAttributeHandle<ATTR_TYPE,VertContainer>(ah,n){}
+	};
 
 	template <class ATTR_TYPE>
 	class PerFaceAttributeHandle: public AttributeHandle<ATTR_TYPE,FaceContainer>{
@@ -312,6 +342,13 @@ public:
 		PerFaceAttributeHandle( void *ah,const int & n):AttributeHandle<ATTR_TYPE,FaceContainer>(ah,n){}
 	};
 
+	template <class ATTR_TYPE>
+	class ConstPerFaceAttributeHandle: public ConstAttributeHandle<ATTR_TYPE,FaceContainer>{
+	public:
+		ConstPerFaceAttributeHandle():ConstAttributeHandle<ATTR_TYPE,FaceContainer>(){}
+		ConstPerFaceAttributeHandle( void *ah,const int & n):ConstAttributeHandle<ATTR_TYPE,FaceContainer>(ah,n){}
+	};
+
 	template <class ATTR_TYPE>
 	class PerEdgeAttributeHandle:  public AttributeHandle<ATTR_TYPE,EdgeContainer>{
 	public:
@@ -319,6 +356,13 @@ public:
 		PerEdgeAttributeHandle( void *ah,const int & n):AttributeHandle<ATTR_TYPE,EdgeContainer>(ah,n){}
 	};
 
+	template <class ATTR_TYPE>
+	class ConstPerEdgeAttributeHandle:  public ConstAttributeHandle<ATTR_TYPE,EdgeContainer>{
+	public:
+		ConstPerEdgeAttributeHandle():ConstAttributeHandle<ATTR_TYPE,EdgeContainer>(){}
+		ConstPerEdgeAttributeHandle( void *ah,const int & n):ConstAttributeHandle<ATTR_TYPE,EdgeContainer>(ah,n){}
+	};
+
 	template <class ATTR_TYPE>
 	class PerTetraAttributeHandle : public AttributeHandle<ATTR_TYPE, TetraContainer>
 	{
@@ -327,6 +371,14 @@ public:
 		PerTetraAttributeHandle(void *ah, const int &n) : AttributeHandle<ATTR_TYPE, TetraContainer>(ah, n) {}
 	};
 
+	template <class ATTR_TYPE>
+	class ConstPerTetraAttributeHandle : public ConstAttributeHandle<ATTR_TYPE, TetraContainer>
+	{
+	public:
+		ConstPerTetraAttributeHandle() : ConstAttributeHandle<ATTR_TYPE, TetraContainer>() {}
+		ConstPerTetraAttributeHandle(void *ah, const int &n) : ConstAttributeHandle<ATTR_TYPE, TetraContainer>(ah, n) {}
+	};
+
 	template <class ATTR_TYPE>
 	class PerMeshAttributeHandle{
 	public:
@@ -340,7 +392,18 @@ public:
 
 		Attribute<ATTR_TYPE> * _handle;
 		int n_attr;
-		ATTR_TYPE & operator ()(){ return *((Attribute<ATTR_TYPE> *)_handle)->attribute;}
+		ATTR_TYPE & operator ()(){ return *((ATTR_TYPE*) (_handle->DataBegin()));}
+	};
+
+	template <class ATTR_TYPE>
+	class ConstPerMeshAttributeHandle{
+	public:
+		ConstPerMeshAttributeHandle(){_handle=nullptr;}
+		ConstPerMeshAttributeHandle(const void *ah,const int & n):_handle ( (const Attribute<ATTR_TYPE> *)ah ),n_attr(n){}
+
+		const Attribute<ATTR_TYPE> * _handle;
+		int n_attr;
+		const ATTR_TYPE & operator ()(){ return *((const ATTR_TYPE*)(_handle->DataBegin()));}
 	};
 
 	// Some common Handle typedefs to simplify use
@@ -538,7 +601,7 @@ template <class MeshType> inline bool IsMarked(const MeshType & m,typename MeshT
 	@param m the mesh containing the element
 	@param t tetra pointer */
 template <class MeshType>
-inline bool IsMarked(MeshType &m, typename MeshType::ConstTetraPointer t) { return t->cIMark() == m.imark; }
+inline bool IsMarked(const MeshType &m, typename MeshType::ConstTetraPointer t) { return t->cIMark() == m.imark; }
 
 /** \brief Set the vertex incremental mark of the vertex to the one of the mesh.
 	@param m the mesh containing the element

vcg/complex/exception.h

@@ -23,6 +23,9 @@
 #ifndef __VCG_EXCEPTION_H
 #define __VCG_EXCEPTION_H
 
+#include <stdexcept>
+#include <iostream>
+
 namespace vcg
 {
 class MissingComponentException : public std::runtime_error

vcg/complex/foreach.h

@@ -24,9 +24,7 @@
 #ifndef VCG__FOREACH_H
 #define VCG__FOREACH_H
 
-#ifndef __VCG_MESH
+#include <vcg/simplex/face/pos.h>
-#error "This file should not be included alone. It is automatically included by complex.h"
-#endif
 
 namespace vcg {
 namespace tri {

vcg/complex/used_types.h

@@ -23,7 +23,6 @@
 #ifndef VCG_USED_TYPES_H
 #define VCG_USED_TYPES_H
 
-#include <vcg/space/point3.h>
 #include <vcg/space/box3.h>
 #include <vcg/space/color4.h>
 #include <vcg/math/shot.h>

vcg/connectors/hedge.h

@@ -20,11 +20,18 @@
 * for more details.                                                         *
 *                                                                           *
 ****************************************************************************/
-#include <vcg/complex/complex.h>
 
 #ifndef __VCG_HEDGE_ 
 #define __VCG_HEDGE_ 
 
+#include <vector>
+#include <string>
+
+#include <vcg/complex/all_types.h>
+#include <vcg/container/derivation_chain.h>
+
+#include "hedge_component.h"
+
 namespace vcg {
 
 /*------------------------------------------------------------------*/ 

vcg/connectors/hedge_component.h

@@ -20,11 +20,14 @@
 * for more details.                                                         *
 *                                                                           *
 ****************************************************************************/
-#include <vcg/complex/complex.h>
 
 #ifndef __VCG_HEDGE_COMPONENT
 #define __VCG_HEDGE_COMPONENT
 
+#include <cassert>
+#include <vector>
+#include <string>
+
 namespace vcg {
 	namespace hedge {
 /*

vcg/container/simple_temporary_data.h

@@ -24,6 +24,12 @@
 #ifndef __VCGLIB_SIMPLE__
 #define __VCGLIB_SIMPLE__
 
+#include <string>
+#include <cstring>
+#include <limits>
+#include <vector>
+#include <cassert>
+
 namespace vcg
 {
 
@@ -36,45 +42,44 @@ public:
     virtual void Reorder(std::vector<size_t> &newVertIndex) = 0;
     virtual size_t SizeOf() const = 0;
     virtual void *DataBegin() = 0;
+    virtual const void* DataBegin() const = 0;
 
     virtual void       *At(size_t i) = 0;
     virtual const void *At(size_t i) const = 0;
     virtual void CopyValue(const size_t to, const size_t from, const SimpleTempDataBase *other) = 0;
 };
 
-template <class TYPE>
+template <class TYPE, class ...p>
-class VectorNBW : public std::vector<TYPE>
+class VectorNBW : public std::vector<TYPE, p...>
 {
 };
 
-template <>
+template <class ...p>
-class VectorNBW<bool>
+class VectorNBW<bool, p...>
 {
 public:
-    VectorNBW() : data(0), datasize(0), datareserve(0) {}
+    VectorNBW() : booldata(nullptr), datasize(0), datareserve(0) {}
 
     ~VectorNBW()
     {
-        if (data)
+        if (booldata)
-            delete[] data;
+            delete[] booldata;
     }
 
-    bool *data;
+    void reserve(size_t sz)
-
-    void reserve(const int &sz)
     {
         if (sz <= datareserve)
             return;
         bool *newdataLoc = new bool[sz];
         if (datasize != 0)
-            memcpy(newdataLoc, data, sizeof(datasize));
+            memcpy(newdataLoc, booldata, sizeof(bool) * sizeof(datasize));
-        std::swap(data, newdataLoc);
+        std::swap(booldata, newdataLoc);
         if (newdataLoc != 0)
             delete[] newdataLoc;
         datareserve = sz;
     }
 
-    void resize(const int &sz)
+    void resize(size_t sz)
     {
         int oldDatasize = datasize;
         if (sz <= oldDatasize)
@@ -82,12 +87,12 @@ public:
         if (sz > datareserve)
             reserve(sz);
         datasize = sz;
-        memset(&data[oldDatasize], 0, datasize - oldDatasize);
+        memset(&booldata[oldDatasize], 0, datasize - oldDatasize);
     }
     void push_back(const bool &v)
     {
         resize(datasize + 1);
-        data[datasize] = v;
+        booldata[datasize] = v;
     }
 
     void clear() { datasize = 0; }
@@ -96,14 +101,16 @@ public:
 
     bool empty() const { return datasize == 0; }
 
-    bool *begin() const { return data; }
+    bool* data() {return booldata;}
+    const bool *data() const { return booldata; }
 
-    bool &operator[](const int &i) { return data[i]; }
+    bool &operator[](size_t i) { return booldata[i]; }
-    const bool &operator[](const int &i) const { return data[i]; }
+    const bool &operator[](size_t i) const { return booldata[i]; }
 
 private:
-    int datasize;
+    bool *booldata;
-    int datareserve;
+    size_t datasize;
+    size_t datareserve;
 };
 
 template <class STL_CONT, class ATTR_TYPE>
@@ -114,16 +121,16 @@ public:
     typedef SimpleTempData<STL_CONT, ATTR_TYPE> SimpTempDataType;
     typedef ATTR_TYPE AttrType;
 
-    STL_CONT &c;
+    const STL_CONT &c;
     VectorNBW<ATTR_TYPE> data;
     int padding;
 
-    SimpleTempData(STL_CONT &_c) : c(_c), padding(0)
+    SimpleTempData(const STL_CONT &_c) : c(_c), padding(0)
     {
         data.reserve(c.capacity());
         data.resize(c.size());
     };
-    SimpleTempData(STL_CONT &_c, const ATTR_TYPE &val) : c(_c)
+    SimpleTempData(const STL_CONT &_c, const ATTR_TYPE &val) : c(_c)
     {
         data.reserve(c.capacity());
         data.resize(c.size());
@@ -142,11 +149,13 @@ public:
     // access to data
     ATTR_TYPE &operator[](const typename STL_CONT::value_type &v)  { return data[&v - &*c.begin()]; }
     ATTR_TYPE &operator[](const typename STL_CONT::value_type *v)  { return data[v - &*c.begin()]; }
+    ATTR_TYPE &operator[](const typename STL_CONT::const_iterator &cont) { return data[&(*cont) - &*c.begin()]; }
     ATTR_TYPE &operator[](const typename STL_CONT::iterator &cont) { return data[&(*cont) - &*c.begin()]; }
     ATTR_TYPE &operator[](size_t i) { return data[i]; }
 
     const ATTR_TYPE &operator[](const typename STL_CONT::value_type &v)  const { return data[&v - &*c.begin()]; }
     const ATTR_TYPE &operator[](const typename STL_CONT::value_type *v)  const { return data[v - &*c.begin()]; }
+    const ATTR_TYPE &operator[](const typename STL_CONT::const_iterator &cont) const { return data[&(*cont) - &*c.begin()]; }
     const ATTR_TYPE &operator[](const typename STL_CONT::iterator &cont) const { return data[&(*cont) - &*c.begin()]; }
     const ATTR_TYPE &operator[](size_t i) const { return data[i]; }
 
@@ -177,7 +186,7 @@ public:
 
     void Reorder(std::vector<size_t> &newVertIndex)
     {
-        for (unsigned int i = 0; i < data.size(); ++i)
+        for (size_t i = 0; i < data.size(); ++i)
         {
             if (newVertIndex[i] != (std::numeric_limits<size_t>::max)())
                 data[newVertIndex[i]] = data[i];
@@ -185,7 +194,8 @@ public:
     }
 
     size_t SizeOf() const { return sizeof(ATTR_TYPE); }
-    void *DataBegin() { return data.empty() ? NULL : &(*data.begin()); }
+    void *DataBegin() { return data.empty() ? nullptr : data.data(); }
+    const void *DataBegin() const { return data.empty() ? nullptr : data.data(); }
 };
 
 template <class ATTR_TYPE>
@@ -193,11 +203,11 @@ class Attribute : public SimpleTempDataBase
 {
 public:
     typedef ATTR_TYPE AttrType;
-    AttrType *attribute;
     Attribute() { attribute = new ATTR_TYPE(); }
     ~Attribute() { delete attribute; }
     size_t SizeOf() const { return sizeof(ATTR_TYPE); }
     void *DataBegin() { return attribute; }
+    const void* DataBegin() const {return attribute;}
 
     void Resize(size_t) { assert(0); }
     void Reorder(std::vector<size_t> &) { assert(0); }
@@ -213,6 +223,8 @@ public:
         return (void *)0;
     }
     void CopyValue(const size_t, const size_t, const SimpleTempDataBase *) { assert(0); }
+private:
+    AttrType *attribute;
 };
 
 } // end namespace vcg

vcg/math/base.h

@@ -165,7 +165,7 @@ namespace math {
 
 /* Some <math.h> files do not define M_PI... */
 #ifndef M_PI
-#define M_PI 3.14159265358979323846
+#define M_PI 3.14159265358979323846264338327950288
 #endif
 
 #ifndef SQRT_TWO

vcg/math/matrix44.h

@@ -566,7 +566,7 @@ bool Decompose(Matrix44<T> &M, Point3<T> &ScaleV, Point3<T> &ShearV, Point3<T> &
         return false;
     if(math::Abs(M.Determinant())<1e-10) return false; // matrix should be at least invertible...
 
-    // First Step recover the traslation
+    // First Step recover the translation
     TranV=M.GetColumn3(3);
 
     // Second Step Recover Scale and Shearing interleaved

vcg/math/shot.h

@@ -207,7 +207,7 @@ public:
     }
 
   /*  multiply the current reference frame for the matrix passed
-   note: it is up to the caller to check the the matrix passed is a pure rototraslation
+   note: it is up to the caller to check the the matrix passed is a pure rototranslation
    */
   void MultMatrix(    vcg::Matrix44<S>    m44)
   {
@@ -218,7 +218,7 @@ public:
   }
 
   /*  multiply the current reference frame for the similarity passed
-   note: it is up to the caller to check the the matrix passed is a pure rototraslation
+   note: it is up to the caller to check the the matrix passed is a pure rototranslation
    */
   void MultSimilarity( const Similarity<S> & s){ MultMatrix(s.Matrix());}
 

vcg/simplex/edge/base.h

@@ -20,11 +20,19 @@
 * for more details.                                                         *
 *                                                                           *
 ****************************************************************************/
-#ifndef __VCG_MESH
+
-#error "This file should not be included alone. It is automatically included by complex.h"
-#endif
 #ifndef __VCG_EDGE_PLUS
 #define __VCG_EDGE_PLUS
+
+#include <cassert>
+#include <string>
+#include <vector>
+
+#include <vcg/complex/all_types.h>
+#include <vcg/container/derivation_chain.h>
+
+#include "component.h"
+
 namespace vcg {
 /*------------------------------------------------------------------*/ 
 /* 

vcg/simplex/edge/component.h

@@ -20,12 +20,17 @@
 * for more details.                                                         *
 *                                                                           *
 ****************************************************************************/
-#ifndef __VCG_MESH
+
-#error "This file should not be included alone. It is automatically included by complex.h"
-#endif
 #ifndef __VCG_EDGE_PLUS_COMPONENT
 #define __VCG_EDGE_PLUS_COMPONENT
 
+#include <cassert>
+#include <vector>
+#include <string>
+
+#include <vcg/space/color4.h>
+
+
 namespace vcg {
 namespace edge {
 

vcg/simplex/edge/pos.h

@@ -24,6 +24,8 @@
 #ifndef __VCG_EDGE_POS
 #define __VCG_EDGE_POS
 
+#include <cassert>
+
 namespace vcg {
 namespace edge {
 

vcg/simplex/edge/topology.h

@@ -24,6 +24,12 @@
 #ifndef _VCG_EDGE_TOPOLOGY
 #define _VCG_EDGE_TOPOLOGY
 
+#include <vector>
+#include <vcg/complex/allocate.h>
+
+#include "pos.h"
+#include "component.h"
+
 namespace vcg {
 namespace edge {
 /** \addtogroup edge */