bool LoadOFF(const string & fileName,
vector< float > & points,
vector< int> & triangles,
IVHACD::IUserLogger & logger)
{
FILE * fid = fopen(fileName.c_str(), "r");
if (fid)
{
const string strOFF("OFF");
char temp[1024];
fscanf(fid, "%s", temp);
if (string(temp) != strOFF)
{
logger.Log("Loading error: format not recognized \n");
fclose(fid);
return false;
}
else
{
int nv = 0;
int nf = 0;
int ne = 0;
fscanf(fid, "%i", &nv);
fscanf(fid, "%i", &nf);
fscanf(fid, "%i", &ne);
points.resize(nv*3);
triangles.resize(nf*3);
const int np = nv * 3;
for (int p = 0; p < np; p++)
{
fscanf(fid, "%f", &(points[p]));
}
int s;
for (int t = 0, r = 0; t < nf; ++t) {
fscanf(fid, "%i", &s);
if (s == 3)
{
fscanf(fid, "%i", &(triangles[r++]));
fscanf(fid, "%i", &(triangles[r++]));
fscanf(fid, "%i", &(triangles[r++]));
}
else // Fix me: support only triangular meshes
{
for (int h = 0; h < s; ++h) fscanf(fid, "%i", &s);
}
}
fclose(fid);
}
}
else
{
logger.Log("Loading error: file not found \n");
return false;
}
return true;
}
bool SaveOBJ(ofstream& fout, const double* const& points, const int* const& triangles, const unsigned int& nPoints,
const unsigned int& nTriangles, const Material& material, IVHACD::IUserLogger& logger, int convexPart, int vertexOffset)
{
if (fout.is_open()) {
fout.setf(std::ios::fixed, std::ios::floatfield);
fout.setf(std::ios::showpoint);
fout.precision(6);
size_t nV = nPoints * 3;
size_t nT = nTriangles * 3;
fout << "o convex_" << convexPart << std::endl;
if (nV > 0) {
for (size_t v = 0; v < nV; v += 3) {
fout << "v " << points[v + 0] << " " << points[v + 1] << " " << points[v + 2] << std::endl;
}
}
if (nT > 0) {
for (size_t f = 0; f < nT; f += 3) {
fout << "f "
<< triangles[f + 0]+vertexOffset << " "
<< triangles[f + 1]+vertexOffset << " "
<< triangles[f + 2]+vertexOffset << " " << std::endl;
}
}
return true;
}
else {
logger.Log("Can't open file\n");
return false;
}
}
bool SaveOFF(const string& fileName, const float* const& points, const int* const& triangles, const unsigned int& nPoints,
const unsigned int& nTriangles, IVHACD::IUserLogger& logger)
{
ofstream fout(fileName.c_str());
if (fout.is_open()) {
size_t nV = nPoints * 3;
size_t nT = nTriangles * 3;
fout << "OFF" << std::endl;
fout << nPoints << " " << nTriangles << " " << 0 << std::endl;
for (size_t v = 0; v < nV; v += 3) {
fout << points[v + 0] << " "
<< points[v + 1] << " "
<< points[v + 2] << std::endl;
}
for (size_t f = 0; f < nT; f += 3) {
fout << "3 " << triangles[f + 0] << " "
<< triangles[f + 1] << " "
<< triangles[f + 2] << std::endl;
}
fout.close();
return true;
}
else {
logger.Log("Can't open file\n");
return false;
}
}
bool SaveVRML2(ofstream& fout, const double* const& points, const int* const& triangles, const unsigned int& nPoints,
const unsigned int& nTriangles, const Material& material, IVHACD::IUserLogger& logger)
{
if (fout.is_open()) {
fout.setf(std::ios::fixed, std::ios::floatfield);
fout.setf(std::ios::showpoint);
fout.precision(6);
size_t nV = nPoints * 3;
size_t nT = nTriangles * 3;
fout << "#VRML V2.0 utf8" << std::endl;
fout << "" << std::endl;
fout << "# Vertices: " << nPoints << std::endl;
fout << "# Triangles: " << nTriangles << std::endl;
fout << "" << std::endl;
fout << "Group {" << std::endl;
fout << " children [" << std::endl;
fout << " Shape {" << std::endl;
fout << " appearance Appearance {" << std::endl;
fout << " material Material {" << std::endl;
fout << " diffuseColor " << material.m_diffuseColor[0] << " "
<< material.m_diffuseColor[1] << " "
<< material.m_diffuseColor[2] << std::endl;
fout << " ambientIntensity " << material.m_ambientIntensity << std::endl;
fout << " specularColor " << material.m_specularColor[0] << " "
<< material.m_specularColor[1] << " "
<< material.m_specularColor[2] << std::endl;
fout << " emissiveColor " << material.m_emissiveColor[0] << " "
<< material.m_emissiveColor[1] << " "
<< material.m_emissiveColor[2] << std::endl;
fout << " shininess " << material.m_shininess << std::endl;
fout << " transparency " << material.m_transparency << std::endl;
fout << " }" << std::endl;
fout << " }" << std::endl;
fout << " geometry IndexedFaceSet {" << std::endl;
fout << " ccw TRUE" << std::endl;
fout << " solid TRUE" << std::endl;
fout << " convex TRUE" << std::endl;
if (nV > 0) {
fout << " coord DEF co Coordinate {" << std::endl;
fout << " point [" << std::endl;
for (size_t v = 0; v < nV; v += 3) {
fout << " " << points[v + 0] << " "
<< points[v + 1] << " "
<< points[v + 2] << "," << std::endl;
}
fout << " ]" << std::endl;
fout << " }" << std::endl;
}
if (nT > 0) {
fout << " coordIndex [ " << std::endl;
for (size_t f = 0; f < nT; f += 3) {
fout << " " << triangles[f + 0] << ", "
<< triangles[f + 1] << ", "
<< triangles[f + 2] << ", -1," << std::endl;
}
fout << " ]" << std::endl;
}
fout << " }" << std::endl;
fout << " }" << std::endl;
fout << " ]" << std::endl;
fout << "}" << std::endl;
return true;
}
else {
logger.Log("Can't open file\n");
return false;
}
}
bool LoadOBJ(const string& fileName, vector<float>& points, vector<int>& triangles, IVHACD::IUserLogger& logger)
{
const unsigned int BufferSize = 1024;
FILE* fid = fopen(fileName.c_str(), "r");
if (fid) {
char buffer[BufferSize];
int ip[4];
float x[3];
char* pch;
char* str;
while (!feof(fid)) {
if (!fgets(buffer, BufferSize, fid)) {
break;
}
else if (buffer[0] == 'v') {
if (buffer[1] == ' ') {
str = buffer + 2;
for (int k = 0; k < 3; ++k) {
pch = strtok(str, " ");
if (pch)
x[k] = (float)atof(pch);
else {
return false;
}
str = NULL;
}
points.push_back(x[0]);
points.push_back(x[1]);
points.push_back(x[2]);
}
}
else if (buffer[0] == 'f') {
pch = str = buffer + 2;
int k = 0;
while (pch) {
pch = strtok(str, " ");
if (pch) {
ip[k++] = atoi(pch) - 1;
}
else {
break;
}
str = NULL;
}
if (k == 3) {
triangles.push_back(ip[0]);
triangles.push_back(ip[1]);
triangles.push_back(ip[2]);
}
else if (k == 4) {
triangles.push_back(ip[0]);
triangles.push_back(ip[1]);
triangles.push_back(ip[2]);
triangles.push_back(ip[0]);
triangles.push_back(ip[2]);
triangles.push_back(ip[3]);
}
}
}
fclose(fid);
}
else {
logger.Log("File not found\n");
return false;
}
return true;
}
bool LoadOBJ(const string & fileName,
vector< float > & points,
vector< int > & triangles,
IVHACD::IUserLogger & logger)
{
const char ObjDelimiters[] = " /";
const unsigned int BufferSize = 1024;
FILE * fid = fopen(fileName.c_str(), "r");
if (fid)
{
char buffer[BufferSize];
int ip[3];
int in[3];
int it[3];
float x[3];
char * pch;
char * str;
size_t nn = 0;
size_t nt = 0;
while (!feof(fid))
{
if (!fgets(buffer, BufferSize, fid))
{
break;
}
else if (buffer[0] == 'v')
{
if (buffer[1] == ' ')
{
str = buffer + 2;
for (int k = 0; k < 3; ++k)
{
pch = strtok(str, " ");
if (pch) x[k] = (float)atof(pch);
else
{
return false;
}
str = NULL;
}
points.push_back(x[0]);
points.push_back(x[1]);
points.push_back(x[2]);
}
else if (buffer[1] == 'n')
{
++nn;
}
else if (buffer[1] == 't')
{
++nt;
}
}
else if (buffer[0] == 'f')
{
str = buffer + 2;
for (int k = 0; k < 3; ++k)
{
pch = strtok(str, ObjDelimiters);
if (pch) ip[k] = atoi(pch) - 1;
else
{
return false;
}
str = NULL;
if (nt > 0)
{
pch = strtok(NULL, ObjDelimiters);
if (pch) it[k] = atoi(pch) - 1;
else
{
return false;
}
}
if (nn > 0)
{
pch = strtok(NULL, ObjDelimiters);
if (pch) in[k] = atoi(pch) - 1;
else
{
return false;
}
}
}
triangles.push_back(ip[0]);
triangles.push_back(ip[1]);
triangles.push_back(ip[2]);
}
}
fclose(fid);
}
else
{
logger.Log("File not found\n");
return false;
}
return true;
}
