/**************************************************************************** * VCGLib o o * * Visual and Computer Graphics Library o o * * _ O _ * * Copyright(C) 2004 \/)\/ * * Visual Computing Lab /\/| * * ISTI - Italian National Research Council | * * \ * * All rights reserved. * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License (http://www.gnu.org/licenses/gpl.txt) * * for more details. * * * ****************************************************************************/ /**************************************************************************** History $Log: not supported by cvs2svn $ Revision 1.4 2005/07/01 11:17:06 cignoni Added option of passing a base mesh to Sphere for spherifying it Revision 1.3 2005/06/17 00:49:29 cignoni Added missing Sphere function Revision 1.2 2005/02/25 11:41:08 pietroni Fixed bug in Square Revision 1.1 2005/01/19 15:43:15 fiorin Moved from vcg/complex/trimesh to vcg/complex/trimesh/create Revision 1.10 2004/10/28 00:54:34 cignoni Better Doxygen documentation Revision 1.9 2004/09/24 10:14:38 fiorin Corrected bug in cone Revision 1.8 2004/09/22 15:12:38 fiorin Corrected bug in hexahedron Revision 1.7 2004/07/09 15:34:29 tarini Dodecahedron added! (and doxigened a little bit) Revision 1.6 2004/05/13 21:08:00 cignoni Conformed C++ syntax to GCC requirements Revision 1.5 2004/03/18 15:29:07 cignoni Completed Octahedron and Icosahedron Revision 1.2 2004/03/03 16:11:46 cignoni First working version (tetrahedron!) ****************************************************************************/ #ifndef __VCGLIB_PLATONIC #define __VCGLIB_PLATONIC #include #include #include #include namespace vcg { namespace tri { /** \addtogroup trimesh */ //@{ /** A set of functions that builds meshes that represent surfaces of platonic solids, and other simple shapes. The 1st parameter is the mesh that will be filled with the solid. */ template void Tetrahedron(TetraMeshType &in) { typedef TetraMeshType MeshType; typedef typename TetraMeshType::CoordType CoordType; typedef typename TetraMeshType::VertexPointer VertexPointer; typedef typename TetraMeshType::VertexIterator VertexIterator; typedef typename TetraMeshType::FaceIterator FaceIterator; in.Clear(); Allocator::AddVertices(in,4); Allocator::AddFaces(in,4); VertexPointer ivp[4]; CoordType test; test=CoordType ( 1.0, 1.0, 1.0); VertexIterator vi=in.vert.begin(); ivp[0]=&*vi;(*vi).P()=CoordType ( 1.0, 1.0, 1.0); ++vi; ivp[1]=&*vi;(*vi).P()=CoordType (-1.0, 1.0,-1.0); ++vi; ivp[2]=&*vi;(*vi).P()=CoordType (-1.0,-1.0, 1.0); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType ( 1.0,-1.0,-1.0); FaceIterator fi=in.face.begin(); (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[3]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[3]; (*fi).V(2)=ivp[1]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[1]; } /// builds a Dodecahedron, /// (each pentagon is composed of 5 triangles) template void Dodecahedron(DodMeshType & in) { typedef DodMeshType MeshType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; typedef typename MeshType::ScalarType ScalarType; const int N_penta=12; const int N_points=62; int penta[N_penta*3*3]= {20,11, 18, 18, 11, 8, 8, 11, 4, 13,23, 4, 4, 23, 8, 8, 23, 16, 13, 4, 30, 30, 4, 28, 28, 4, 11, 16,34, 8, 8, 34, 18, 18, 34, 36, 11,20, 28, 28, 20, 45, 45, 20, 38, 13,30, 23, 23, 30, 41, 41, 30, 47, 16,23, 34, 34, 23, 50, 50, 23, 41, 20,18, 38, 38, 18, 52, 52, 18, 36, 30,28, 47, 47, 28, 56, 56, 28, 45, 50,60, 34, 34, 60, 36, 36, 60, 52, 45,38, 56, 56, 38, 60, 60, 38, 52, 50,41, 60, 60, 41, 56, 56, 41, 47 }; //A B E D C const ScalarType p=(1.0 + math::Sqrt(5.0)) / 2.0; const ScalarType p2=p*p; const ScalarType p3=p*p*p; ScalarType vv[N_points*3]= { 0, 0, 2*p2, p2, 0, p3, p, p2, p3, 0, p, p3, -p, p2, p3, -p2, 0, p3, -p, -p2, p3, 0, -p, p3, p, -p2, p3, p3, p, p2, p2, p2, p2, 0, p3, p2, -p2, p2, p2, -p3, p, p2, -p3, -p, p2, -p2, -p2, p2, 0, -p3, p2, p2, -p2, p2, p3, -p, p2, p3, 0, p, p2, p3, p, -p2, p3, p, -p3, 0, p, -p2, -p3, p, p2, -p3, p, 2*p2, 0, 0, p3, p2, 0, p, p3, 0, 0, 2*p2, 0, -p, p3, 0, -p3, p2, 0, -2*p2, 0, 0, -p3, -p2, 0, -p, -p3, 0, 0, -2*p2, 0, p, -p3, 0, p3, -p2, 0, p3, 0, -p, p2, p3, -p, -p2, p3, -p, -p3, 0, -p, -p2, -p3, -p, p2, -p3, -p, p3, p, -p2, p2, p2, -p2, 0, p3, -p2, -p2, p2, -p2, -p3, p, -p2, -p3, -p, -p2, -p2, -p2, -p2, 0, -p3, -p2, p2, -p2, -p2, p3, -p, -p2, p2, 0, -p3, p, p2, -p3, 0, p, -p3, -p, p2, -p3, -p2, 0, -p3, -p, -p2, -p3, 0, -p, -p3, p, -p2, -p3, 0, 0, -2*p2 }; in.Clear(); //in.face.clear(); Allocator::AddVertices(in,20+12); Allocator::AddFaces(in, 5*12); // five pentagons, each made by 5 tri int h,i,j,k=0,m=0; bool used[N_points]; for (i=0; i index(in.vn); for(j=0,vi=in.vert.begin();j void Octahedron(OctMeshType &in) { typedef OctMeshType MeshType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; in.Clear(); Allocator::AddVertices(in,6); Allocator::AddFaces(in,8); VertexPointer ivp[6]; VertexIterator vi=in.vert.begin(); ivp[0]=&*vi;(*vi).P()=CoordType ( 1, 0, 0); ++vi; ivp[1]=&*vi;(*vi).P()=CoordType ( 0, 1, 0); ++vi; ivp[2]=&*vi;(*vi).P()=CoordType ( 0, 0, 1); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType (-1, 0, 0); ++vi; ivp[4]=&*vi;(*vi).P()=CoordType ( 0,-1, 0); ++vi; ivp[5]=&*vi;(*vi).P()=CoordType ( 0, 0,-1); FaceIterator fi=in.face.begin(); (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[4]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[4]; (*fi).V(2)=ivp[5]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[5]; (*fi).V(2)=ivp[1]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[5]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[5]; (*fi).V(2)=ivp[4]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[4]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[1]; } template void Icosahedron(IcoMeshType &in) { typedef IcoMeshType MeshType; typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; ScalarType L=ScalarType((math::Sqrt(5.0)+1.0)/2.0); CoordType vv[12]={ CoordType ( 0, L, 1), CoordType ( 0, L,-1), CoordType ( 0,-L, 1), CoordType ( 0,-L,-1), CoordType ( L, 1, 0), CoordType ( L,-1, 0), CoordType (-L, 1, 0), CoordType (-L,-1, 0), CoordType ( 1, 0, L), CoordType (-1, 0, L), CoordType ( 1, 0,-L), CoordType (-1, 0,-L) }; int ff[20][3]={ {1,0,4},{0,1,6},{2,3,5},{3,2,7}, {4,5,10},{5,4,8},{6,7,9},{7,6,11}, {8,9,2},{9,8,0},{10,11,1},{11,10,3}, {0,8,4},{0,6,9},{1,4,10},{1,11,6}, {2,5,8},{2,9,7},{3,10,5},{3,7,11} }; in.Clear(); Allocator::AddVertices(in,12); Allocator::AddFaces(in,20); VertexPointer ivp[12]; VertexIterator vi; int i; for(i=0,vi=in.vert.begin();vi!=in.vert.end();++i,++vi){ (*vi).P()=vv[i]; ivp[i]=&*vi; } FaceIterator fi; for(i=0,fi=in.face.begin();fi!=in.face.end();++i,++fi){ (*fi).V(0)=ivp[ff[i][0]]; (*fi).V(1)=ivp[ff[i][1]]; (*fi).V(2)=ivp[ff[i][2]]; } } template void Hexahedron(MeshType &in) { typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; in.Clear(); Allocator::AddVertices(in,8); Allocator::AddFaces(in,12); VertexPointer ivp[8]; VertexIterator vi=in.vert.begin(); ivp[0]=&*vi;(*vi).P()=CoordType (-1,-1,-1); ++vi; ivp[1]=&*vi;(*vi).P()=CoordType ( 1,-1,-1); ++vi; ivp[2]=&*vi;(*vi).P()=CoordType (-1, 1,-1); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType ( 1, 1,-1); ++vi; ivp[4]=&*vi;(*vi).P()=CoordType (-1,-1, 1); ++vi; ivp[5]=&*vi;(*vi).P()=CoordType ( 1,-1, 1); ++vi; ivp[6]=&*vi;(*vi).P()=CoordType (-1, 1, 1); ++vi; ivp[7]=&*vi;(*vi).P()=CoordType ( 1, 1, 1); FaceIterator fi=in.face.begin(); (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[1]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[4]; ++fi; (*fi).V(0)=ivp[6]; (*fi).V(1)=ivp[4]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[4]; (*fi).V(2)=ivp[1]; ++fi; (*fi).V(0)=ivp[5]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[4]; ++fi; (*fi).V(0)=ivp[7]; (*fi).V(1)=ivp[5]; (*fi).V(2)=ivp[6]; ++fi; (*fi).V(0)=ivp[4]; (*fi).V(1)=ivp[6]; (*fi).V(2)=ivp[5]; ++fi; (*fi).V(0)=ivp[7]; (*fi).V(1)=ivp[6]; (*fi).V(2)=ivp[3]; ++fi; (*fi).V(0)=ivp[2]; (*fi).V(1)=ivp[3]; (*fi).V(2)=ivp[6]; ++fi; (*fi).V(0)=ivp[7]; (*fi).V(1)=ivp[3]; (*fi).V(2)=ivp[5]; ++fi; (*fi).V(0)=ivp[1]; (*fi).V(1)=ivp[5]; (*fi).V(2)=ivp[3]; } template void Square(MeshType &in) { typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; in.Clear(); Allocator::AddVertices(in,4); Allocator::AddFaces(in,2); VertexPointer ivp[4]; VertexIterator vi=in.vert.begin(); ivp[0]=&*vi;(*vi).P()=CoordType ( 1, 0, 0); ++vi; ivp[1]=&*vi;(*vi).P()=CoordType ( 0, 1, 0); ++vi; ivp[2]=&*vi;(*vi).P()=CoordType (-1, 0, 0); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType ( 0,-1, 0); FaceIterator fi=in.face.begin(); (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[3]; } // this function build a sphere starting from a eventually not empty mesh. // If the mesh is not empty it is 'spherified' and used as base for the subdivision process. // otherwise an icosahedron is used. template void Sphere(MeshType &in, const int subdiv = 3 ) { typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; if(in.vn==0 && in.fn==0) Icosahedron(in); VertexIterator vi; for(vi = in.vert.begin(); vi!=in.vert.end();++vi) vi->P().Normalize(); tri::UpdateFlags::FaceBorderFromNone(in); int lastsize = 0; for(int i=0;i >(in,MidPoint(),0); for(vi = in.vert.begin()+lastsize;vi!=in.vert.end();++vi) vi->P().Normalize(); lastsize = in.vert.size(); } } /// r1 = raggio 1, r2 = raggio2, h = altezza (asse y) template void Cone( MeshType& in, const typename MeshType::ScalarType r1, const typename MeshType::ScalarType r2, const typename MeshType::ScalarType h ) { typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; const int D = 24; int i,b1,b2; in.Clear(); int VN,FN; if(r1==0 || r2==0) { VN=D+2; FN=D*2; } else { VN=D*2+2; FN=D*4; } Allocator::AddVertices(in,VN); Allocator::AddFaces(in,FN); VertexPointer *ivp = new VertexPointer[VN]; VertexIterator vi=in.vert.begin(); ivp[0]=&*vi;(*vi).P()=CoordType ( 0,-h/2,0 ); ++vi; ivp[1]=&*vi;(*vi).P()=CoordType ( 0, h/2,0 ); ++vi; b1 = b2 = 2; int cnt=2; if(r1!=0) { for(i=0;i void Box(MeshType &in, const typename MeshType::BoxType & bb ) { typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; in.Clear(); Allocator::AddVertices(in,8); Allocator::AddFaces(in,12); VertexPointer ivp[8]; VertexIterator vi=in.vert.begin(); ivp[0]=&*vi;(*vi).P()=CoordType (bb.min[0],bb.min[1],bb.min[2]); ++vi; ivp[1]=&*vi;(*vi).P()=CoordType (bb.max[0],bb.min[1],bb.min[2]); ++vi; ivp[2]=&*vi;(*vi).P()=CoordType (bb.min[0],bb.max[1],bb.min[2]); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType (bb.max[0],bb.max[1],bb.min[2]); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType (bb.min[0],bb.min[1],bb.max[2]); ++vi; ivp[3]=&*vi;(*vi).P()=CoordType (bb.max[0],bb.min[1],bb.max[2]); ++vi; ivp[4]=&*vi;(*vi).P()=CoordType (bb.min[0],bb.max[1],bb.max[2]); ++vi; ivp[5]=&*vi;(*vi).P()=CoordType (bb.max[0],bb.max[1],bb.max[2]); FaceIterator fi=in.face.begin(); (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[3]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[1]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[4]; ++fi; (*fi).V(0)=ivp[6]; (*fi).V(1)=ivp[4]; (*fi).V(2)=ivp[2]; ++fi; (*fi).V(0)=ivp[0]; (*fi).V(1)=ivp[4]; (*fi).V(2)=ivp[1]; ++fi; (*fi).V(0)=ivp[5]; (*fi).V(1)=ivp[1]; (*fi).V(2)=ivp[4]; ++fi; (*fi).V(0)=ivp[7]; (*fi).V(1)=ivp[5]; (*fi).V(2)=ivp[6]; ++fi; (*fi).V(0)=ivp[4]; (*fi).V(1)=ivp[6]; (*fi).V(2)=ivp[5]; ++fi; (*fi).V(0)=ivp[7]; (*fi).V(1)=ivp[6]; (*fi).V(2)=ivp[3]; ++fi; (*fi).V(0)=ivp[2]; (*fi).V(1)=ivp[3]; (*fi).V(2)=ivp[6]; ++fi; (*fi).V(0)=ivp[7]; (*fi).V(1)=ivp[3]; (*fi).V(2)=ivp[5]; ++fi; (*fi).V(0)=ivp[1]; (*fi).V(1)=ivp[5]; (*fi).V(2)=ivp[3]; } /// Questa funzione costruisce una mesh a partire da un insieme di coordiante /// ed un insieme di terne di indici di vertici template void Build( MeshType & in, const V & v, const F & f) { typedef typename MeshType::ScalarType ScalarType; typedef typename MeshType::CoordType CoordType; typedef typename MeshType::VertexPointer VertexPointer; typedef typename MeshType::VertexIterator VertexIterator; typedef typename MeshType::FaceIterator FaceIterator; in.vn = v.size(); in.fn = f.size(); in.vert.clear(); in.face.clear(); typename V::const_iterator vi; typename MeshType::VertexType tv; tv.Supervisor_Flags()=0; for(vi=v.begin();vi!=v.end();++vi) { tv.P() = CoordType( (ScalarType)(*vi).Ext(0), (ScalarType)(*vi).Ext(1), (ScalarType)(*vi).Ext(2) ); in.vert.push_back(tv); } std::vector index(in.vn); VertexIterator j; int k; for(k=0,j=in.vert.begin();j!=in.vert.end();++j,++k) index[k] = &*j; typename F::const_iterator fi; typename MeshType::FaceType ft; ft.Supervisor_Flags()=0; for(fi=f.begin();fi!=f.end();++fi) { assert( (*fi)[0]>=0 ); assert( (*fi)[1]>=0 ); assert( (*fi)[2]>=0 ); assert( (*fi)[0]