bool MeshModel::updateMeshInfo()
{
if (getNumVertices() == 0) {
printf("Loaded mesh has no vertices!\n");
return false;
}
if (getNumFaces() == 0) {
printf("Loaded mesh has no faces!\n");
return false;
}
BBOX b = getActualBBox();
width = b.width();
height = b.height();
center = b.center();
std::map< int , std::map<int,int> > edgeCount;
std::set<Vertex> normalVertices;
for (auto iter = faces->begin() ; iter != faces->end() ; iter++)
{
int a = iter->a();
int b = iter->b();
int c = iter->c();
edgeCount[a][b]++;
edgeCount[b][a]++;
edgeCount[a][c]++;
edgeCount[c][a]++;
edgeCount[c][b]++;
edgeCount[b][c]++;
normalVertices.insert(a);
normalVertices.insert(b);
normalVertices.insert(c);
}
if (normalVertices.size() != getNumVertices()) {
printf("Mesh has standalone vertices, aborting\n");
return false;
}
for (auto iter = faces->begin() ; iter != faces->end() ; iter++)
{
int a = iter->a();
int b = iter->b();
int c = iter->c();
if (edgeCount[a][b] == 1) {
boundaryVertices->insert(a);
boundaryVertices->insert(b);
}
if (edgeCount[b][c] == 1) {
boundaryVertices->insert(b);
boundaryVertices->insert(c);
}
if (edgeCount[a][c] == 1) {
boundaryVertices->insert(a);
boundaryVertices->insert(c);
}
}
return true;
}
