//static int matchCounter = 0;
bool SetOperations::CollectFacetVisitor::AllowVisit (const MeshFacet& rclFacet, const MeshFacet& rclFrom, unsigned long ulFInd, unsigned long ulLevel, unsigned short neighbourIndex)
{
if (rclFacet.IsFlag(MeshFacet::MARKED) && rclFrom.IsFlag(MeshFacet::MARKED))
{ // facet connected to an edge
unsigned long pt0 = rclFrom._aulPoints[neighbourIndex], pt1 = rclFrom._aulPoints[(neighbourIndex+1)%3];
Edge edge(_mesh.GetPoint(pt0), _mesh.GetPoint(pt1));
std::map<Edge, EdgeInfo>::iterator it = _edges.find(edge);
if (it != _edges.end())
{
if (_addFacets == -1)
{ // detemine if the facets shoud add or not only once
MeshGeomFacet facet = _mesh.GetFacet(rclFrom); // triangulated facet
MeshGeomFacet facetOther = it->second.facets[1-_side][0]; // triangulated facet from same edge and other mesh
Vector3f normalOther = facetOther.GetNormal();
//Vector3f normal = facet.GetNormal();
Vector3f edgeDir = it->first.pt1 - it->first.pt2;
Vector3f ocDir = (edgeDir % (facet.GetGravityPoint() - it->first.pt1)) % edgeDir;
ocDir.Normalize();
Vector3f ocDirOther = (edgeDir % (facetOther.GetGravityPoint() - it->first.pt1)) % edgeDir;
ocDirOther.Normalize();
//Vector3f dir = ocDir % normal;
//Vector3f dirOther = ocDirOther % normalOther;
bool match = ((ocDir * normalOther) * _mult) < 0.0f;
//if (matchCounter == 1)
//{
// // _builder.addSingleArrow(it->second.pt1, it->second.pt1 + edgeDir, 3, 0.0, 1.0, 0.0);
// _builder.addSingleTriangle(facet._aclPoints[0], facet._aclPoints[1], facet._aclPoints[2], true, 3.0, 1.0, 0.0, 0.0);
// // _builder.addSingleArrow(facet.GetGravityPoint(), facet.GetGravityPoint() + ocDir, 3, 1.0, 0.0, 0.0);
// _builder.addSingleArrow(facet.GetGravityPoint(), facet.GetGravityPoint() + normal, 3, 1.0, 0.5, 0.0);
// // _builder.addSingleArrow(facet.GetGravityPoint(), facet.GetGravityPoint() + dir, 3, 1.0, 1.0, 0.0);
// _builder.addSingleTriangle(facetOther._aclPoints[0], facetOther._aclPoints[1], facetOther._aclPoints[2], true, 3.0, 0.0, 0.0, 1.0);
// // _builder.addSingleArrow(facetOther.GetGravityPoint(), facetOther.GetGravityPoint() + ocDirOther, 3, 0.0, 0.0, 1.0);
// _builder.addSingleArrow(facetOther.GetGravityPoint(), facetOther.GetGravityPoint() + normalOther, 3, 0.0, 0.5, 1.0);
// // _builder.addSingleArrow(facetOther.GetGravityPoint(), facetOther.GetGravityPoint() + dirOther, 3, 0.0, 1.0, 1.0);
//}
// float scalar = dir * dirOther * _mult;
// bool match = scalar > 0.0f;
//MeshPoint pt0 = it->first.pt1;
//MeshPoint pt1 = it->first.pt2;
//int i, n0 = -1, n1 = -1, m0 = -1, m1 = -1;
//for (i = 0; i < 3; i++)
//{
// if ((n0 == -1) && (facet._aclPoints[i] == pt0))
// n0 = i;
// if ((n1 == -1) && (facet._aclPoints[i] == pt1))
// n1 = i;
// if ((m0 == -1) && (facetOther._aclPoints[i] == pt0))
// m0 = i;
// if ((m1 == -1) && (facetOther._aclPoints[i] == pt1))
// m1 = i;
//}
//if ((n0 != -1) && (n1 != -1) && (m0 != -1) && (m1 != -1))
//{
// bool orient_n = n1 > n0;
// bool orient_m = m1 > m0;
// Vector3f dirN = facet._aclPoints[n1] - facet._aclPoints[n0];
// Vector3f dirM = facetOther._aclPoints[m1] - facetOther._aclPoints[m0];
// if (matchCounter == 1)
// {
// _builder.addSingleArrow(facet.GetGravityPoint(), facet.GetGravityPoint() + dirN, 3, 1.0, 1.0, 0.0);
// _builder.addSingleArrow(facetOther.GetGravityPoint(), facetOther.GetGravityPoint() + dirM, 3, 0.0, 1.0, 1.0);
// }
// if (_mult > 0.0)
// match = orient_n == orient_m;
// else
// match = orient_n != orient_m;
//}
if (match)
_addFacets = 0;
else
_addFacets = 1;
//matchCounter++;
}
return false;
}
}
return true;
}
CurvatureInfo FacetCurvature::Compute(unsigned long index) const
{
Base::Vector3f rkDir0, rkDir1, rkPnt;
Base::Vector3f rkNormal;
MeshGeomFacet face = myKernel.GetFacet(index);
Base::Vector3f face_gravity = face.GetGravityPoint();
Base::Vector3f face_normal = face.GetNormal();
std::set<unsigned long> point_indices;
FitPointCollector collect(point_indices);
float searchDist = myRadius;
int attempts=0;
do {
mySearch.Neighbours(index, searchDist, collect);
if (point_indices.empty())
break;
float min_points = myMinPoints;
float use_points = point_indices.size();
searchDist = searchDist * sqrt(min_points/use_points);
}
while((point_indices.size() < myMinPoints) && (attempts++ < 3));
std::vector<Base::Vector3f> fitPoints;
const MeshPointArray& verts = myKernel.GetPoints();
fitPoints.reserve(point_indices.size());
for (std::set<unsigned long>::iterator it = point_indices.begin(); it != point_indices.end(); ++it) {
fitPoints.push_back(verts[*it] - face_gravity);
}
float fMin, fMax;
if (fitPoints.size() >= myMinPoints) {
SurfaceFit surf_fit;
surf_fit.AddPoints(fitPoints);
surf_fit.Fit();
rkNormal = surf_fit.GetNormal();
double dMin, dMax, dDistance;
if (surf_fit.GetCurvatureInfo(0.0, 0.0, 0.0, dMin, dMax, rkDir1, rkDir0, dDistance)) {
fMin = (float)dMin;
fMax = (float)dMax;
}
else {
fMin = FLT_MAX;
fMax = FLT_MAX;
}
}
else {
// too few points => cannot calc any properties
fMin = FLT_MAX;
fMax = FLT_MAX;
}
CurvatureInfo info;
if (fMin < fMax) {
info.fMaxCurvature = fMax;
info.fMinCurvature = fMin;
info.cMaxCurvDir = rkDir1;
info.cMinCurvDir = rkDir0;
}
else {
info.fMaxCurvature = fMin;
info.fMinCurvature = fMax;
info.cMaxCurvDir = rkDir0;
info.cMinCurvDir = rkDir1;
}
// Reverse the direction of the normal vector if required
// (Z component of "local" normal vectors should be opposite in sign to the "local" view vector)
if (rkNormal * face_normal < 0.0) {
// Note: Changing the normal directions is similar to flipping over the object.
// In this case we must adjust the curvature information as well.
std::swap(info.cMaxCurvDir,info.cMinCurvDir);
std::swap(info.fMaxCurvature,info.fMinCurvature);
info.fMaxCurvature *= (-1.0);
info.fMinCurvature *= (-1.0);
}
return info;
}
