seeding general tetra importer
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T.Alderighi
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/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004-2016 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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****************************************************************************/
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#ifndef __VCGLIB_TETRA_IMPORT
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#define __VCGLIB_TETRA_IMPORT
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#include <wrap/io_tetramesh/import_ply.h>
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#include <wrap/io_tetramesh/import_msh.h>
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#include <locale>
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namespace vcg {
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namespace tetra {
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namespace io {
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/**
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This class encapsulate a filter for automatically importing meshes by guessing
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the right filter according to the extension
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*/
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template <class OpenMeshType>
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class Importer
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{
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private:
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enum KnownTypes { KT_UNKNOWN, KT_PLY, KT_MSH };
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static int &LastType()
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{
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static int lastType= KT_UNKNOWN;
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return lastType;
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}
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public:
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enum ImporterError {
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E_NOERROR =0 // No error =0 is the standard for ALL the imported files.
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};
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// simple aux function that returns true if a given file has a given extesnion
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static bool FileExtension(std::string filename, std::string extension)
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{
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std::transform(filename.begin(), filename.end(), filename.begin(), ::tolower);
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std::transform(extension.begin(), extension.end(), extension.begin(), ::tolower);
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std::string end=filename.substr(filename.length() - extension.length(), extension.length());
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return end == extension;
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}
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// Open Mesh, returns 0 on success.
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static int Open(OpenMeshType &m, const char *filename, CallBackPos *cb=0)
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{
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int dummymask = 0;
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return Open(m, filename, dummymask, cb);
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}
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/// Open Mesh and fills the load mask (the load mask must be initialized first); returns 0 on success.
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static int Open(OpenMeshType &m, const char *filename, int &loadmask, CallBackPos *cb=0)
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{
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int err;
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if(FileExtension(filename,"ply"))
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{
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err = tetra::io::ImporterPLY<OpenMeshType>::Open(m, filename, loadmask, cb);
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LastType()=KT_PLY;
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}
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else if(FileExtension(filename,"msh"))
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{
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err = tetra::io::ImporterMSH<OpenMeshType>::Open(m, filename, cb);
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LastType()=KT_MSH;
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}
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else
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{
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err=1;
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LastType()=KT_UNKNOWN;
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}
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return err;
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}
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static bool ErrorCritical(int error)
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{
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switch(LastType())
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{
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case KT_PLY : return (error > 0); break;
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case KT_MSH : return (error > 0); break;
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}
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return true;
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}
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static const char *ErrorMsg(int error)
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{
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switch(LastType())
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{
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// case KT_PLY : return ImporterPLY<OpenMeshType>::ErrorMsg(error); break;
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// case KT_STL : return ImporterSTL<OpenMeshType>::ErrorMsg(error); break;
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// case KT_OFF : return ImporterOFF<OpenMeshType>::ErrorMsg(error); break;
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// case KT_OBJ : return ImporterOBJ<OpenMeshType>::ErrorMsg(error); break;
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// case KT_VMI : return ImporterVMI<OpenMeshType>::ErrorMsg(error); break;
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}
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return "Unknown type";
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}
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static bool LoadMask(const char * filename, int &mask)
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{
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bool err;
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if(FileExtension(filename, "ply"))
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{
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err = tetra::io::ImporterPLY<OpenMeshType>::LoadMask(filename, mask);
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LastType() = KT_PLY;
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}
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else if(FileExtension(filename, "msh"))
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{
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mask = Mask::IOM_VERTCOORD | Mask::IOM_TETRAINDEX;
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err = true;
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LastType() = KT_MSH;
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}
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else
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{
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err = false;
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LastType()=KT_UNKNOWN;
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}
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return err;
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}
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}; // end class
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} // end Namespace tetra
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} // end Namespace io
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} // end Namespace vcg
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#endif
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