Better error handling + error msg. One assert turned into an error (silva's quads). Faces with < 3 verts and faces with repeated vert now just ignored (non critical errors).
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@ -120,69 +120,71 @@ namespace vcg {
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enum OBJError {
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// Successfull opening
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E_NOERROR = 0x000, // 0 (position of correspondig string in the array)
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E_NOERROR = 0*2+0, // A*2+B (A position of correspondig string in the array, B=1 if not critical)
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// Non Critical Errors (only odd numbers)
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E_NON_CRITICAL_ERROR = 0x001,
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E_MATERIAL_FILE_NOT_FOUND = 0x003, // 1
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E_MATERIAL_NOT_FOUND = 0x005, // 2
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E_TEXTURE_NOT_FOUND = 0x007, // 3
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E_VERTICES_WITH_SAME_IDX_IN_FACE = 0x009, // 4
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E_NON_CRITICAL_ERROR = 0*2+1,
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E_MATERIAL_FILE_NOT_FOUND = 1*2+1,
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E_MATERIAL_NOT_FOUND = 2*2+1,
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E_TEXTURE_NOT_FOUND = 3*2+1,
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E_VERTICES_WITH_SAME_IDX_IN_FACE = 4*2+1,
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E_LESS_THAN_3_VERT_IN_FACE = 5*2+1,
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// Critical Opening Errors (only even numbers)
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E_CANTOPEN = 0x00A, // 5
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E_UNESPECTEDEOF = 0x00C, // 6
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E_ABORTED = 0x00E, // 7
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E_NO_VERTEX = 0x010, // 8
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E_NO_FACE = 0x012, // 9
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E_BAD_VERTEX_STATEMENT = 0x014, // 10
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E_BAD_VERT_TEX_STATEMENT = 0x016, // 11
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E_BAD_VERT_NORMAL_STATEMENT = 0x018, // 12
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E_LESS_THAN_3VERTINFACE = 0x01A, // 13
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E_BAD_VERT_INDEX = 0x01C, // 14
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E_BAD_VERT_TEX_INDEX = 0x01E, // 15
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E_BAD_VERT_NORMAL_INDEX = 0x020 // 16
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E_CANTOPEN = 6*2+0,
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E_UNEXPECTED_EOF = 7*2+0,
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E_ABORTED = 8*2+0,
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E_NO_VERTEX = 9*2+0,
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E_NO_FACE =10*2+0,
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E_BAD_VERTEX_STATEMENT =11*2+0,
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E_BAD_VERT_TEX_STATEMENT =12*2+0,
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E_BAD_VERT_NORMAL_STATEMENT =13*2+0,
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E_BAD_VERT_INDEX =14*2+0,
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E_BAD_VERT_TEX_INDEX =15*2+0,
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E_BAD_VERT_NORMAL_INDEX =16*2+0,
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E_LESS_THAN_4_VERT_IN_QUAD =17*2+0
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};
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// to check if a given error is critical or not.
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static bool ErrorCritical(int err)
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{
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if(err<0x00A && err>=0) return false;
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if (err==0) return false;
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if (err&1) return false;
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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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static const char* obj_error_msg[] =
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const int MAXST = 18;
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static const char* obj_error_msg[MAXST] =
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{
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"No errors", // 0
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/* 0 */ "No errors",
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"Material library file wrong or not found, a default white material is used", // 1
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"Some materials definitions were not found, a default white material is used where no material was available", // 2
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"Texture file not found", // 3
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"Identical index vertices found in the same face", // 4
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/* 1 */ "Material library file wrong or not found, a default white material is used",
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/* 2 */ "Some materials definitions were not found, a default white material is used where no material was available",
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/* 3 */ "Texture file not found",
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/* 4 */ "Identical vertex indices found in the same faces -- faces ignored",
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/* 5 */ "Faces with fewer than 3 vertices -- faces ignored",
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"Can't open file", // 5
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"Premature End of file", // 6
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"File opening aborted", // 7
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"No vertex field found", // 8
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"No face field found", // 9
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"Vertex statement with less than 3 coords", // 10
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"Texture coords statement with less than 2 coords", // 11
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"Vertex normal statement with less than 3 coords", // 12
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"Face with less than 3 vertices", // 13
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"Bad vertex index in face", // 14
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"Bad texture coords index in face", // 15
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"Bad vertex normal index in face" // 16
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/* 6 */ "Can't open file",
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/* 7 */ "Premature End of File. File truncated?",
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/* 8 */ "Loading aborted by user",
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/* 9 */ "No vertex found",
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/* 10 */ "No face found",
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/* 11 */ "Vertex statement with fewer than 3 coords",
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/* 12 */ "Texture coords statement with fewer than 2 coords",
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/* 13 */ "Vertex normal statement with fewer than 3 coords",
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/* 14 */ "Bad vertex index in face",
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/* 15 */ "Bad texture coords index in face",
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/* 16 */ "Bad vertex normal index in face",
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/* 17 */ "Quad faces with number of corners different from 4"
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};
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// due to approximation, following line works well for either even (critical err codes)
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// or odd (non critical ones) numbers
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error = (int) error/2;
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error >>= 1;
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if(error>15 || error<0) return "Unknown error";
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if( (error>=MAXST) || (error<0) ) return "Unknown error";
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else return obj_error_msg[error];
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};
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}
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// Helper functions that checks the range of indexes
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// putting them in the correct range if less than zero (as in the obj style)
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@ -346,12 +348,25 @@ namespace vcg {
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{
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loadingStr="Face Loading";
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bool QuadFlag = false; // QOBJ format by Silva et al for simply storing quadrangular meshes.
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if(header.compare("q")==0) { QuadFlag=true; assert(numTokens == 5); }
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if (numTokens < 4) return E_LESS_THAN_3VERTINFACE;
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int vertexesPerFace = static_cast<int>(tokens.size()-1);
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bool QuadFlag = false; // QOBJ format by Silva et al for simply storing quadrangular meshes.
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if(header.compare("q")==0) {
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QuadFlag=true;
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if (vertexesPerFace != 4) {
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return E_LESS_THAN_4_VERT_IN_QUAD;
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}
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}
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if (vertexesPerFace < 3) {
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// face with fewer than 3 vertices found: ignore this face
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extraTriangles--;
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result = E_LESS_THAN_3_VERT_IN_FACE;
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continue;
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}
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if( (vertexesPerFace>3) && OpenMeshType::FaceType::HasPolyInfo() )
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{
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//_BEGIN___ if you are loading a GENERIC POLYGON mesh
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@ -374,8 +389,11 @@ namespace vcg {
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std::vector<int> tmp = ff.v;
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std::sort(tmp.begin(),tmp.end());
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std::unique(tmp.begin(),tmp.end());
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if(tmp.size() != ff.v.size())
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if(tmp.size() != ff.v.size()) {
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result = E_VERTICES_WITH_SAME_IDX_IN_FACE;
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extraTriangles--;
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continue;
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}
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for(int i=0;i<vertexesPerFace;i++)
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if(!GoodObjIndex(ff.v[i],numVertices))
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@ -476,8 +494,11 @@ namespace vcg {
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}
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// verifying validity of vertex indices
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if ((ff.v[0] == ff.v[1]) || (ff.v[0] == ff.v[2]) || (ff.v[1] == ff.v[2]))
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if ((ff.v[0] == ff.v[1]) || (ff.v[0] == ff.v[2]) || (ff.v[1] == ff.v[2])) {
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result = E_VERTICES_WITH_SAME_IDX_IN_FACE;
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extraTriangles--;
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continue;
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}
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{
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bool invalid = false;
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