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FeatureExtraction.cpp
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FeatureExtraction.cpp
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#include "FeatureExtraction.h"
#include <TopExp.hxx>
#include <TopoDS.hxx>
#include <assert.h>
#include <Eigen/Eigen>
#include <Eigen/Core>
#include <Eigen/Eigenvalues>
#include <BRep_Tool.hxx>
#include <BRepTools.hxx>
#include <GeomLProp_SLProps.hxx>
#include <TopExp_Explorer.hxx>
#include <algorithm>
#include <stdio.h>
#include <stack>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Builder.hxx>
#include <queue>
using namespace Eigen;
namespace FeatureExtractionAlgo {
Vector3d operator|(const TopoDS_Vertex v, ConversionHelpers c)
{
return c(v);
}
//#include
ExtractedFeatures NormalTensorFrameworkMethod(TopoDS_Shape model, float creaseAngle /*= 5.0f*/)
{
TopTools_IndexedDataMapOfShapeListOfShape vertexToFaceMap;
TopExp::MapShapesAndAncestors(model, TopAbs_VERTEX, TopAbs_FACE, vertexToFaceMap);
TopTools_IndexedDataMapOfShapeListOfShape faceToVertexMap;
TopExp::MapShapesAndAncestors(model, TopAbs_FACE, TopAbs_VERTEX, faceToVertexMap);
TopTools_IndexedDataMapOfShapeListOfShape shapeToVertexMap;
TopExp::MapShapesAndAncestors(model, TopAbs_SHAPE, TopAbs_VERTEX, shapeToVertexMap);
TopTools_IndexedMapOfShape faces;
TopExp::MapShapes(model, TopAbs_FACE, faces);
TopExp_Explorer vertexExp;
VerticesSet vertices;
for (vertexExp.Init(model, TopAbs_VERTEX); vertexExp.More(); vertexExp.Next())
{
vertices.insert(TopoDS::Vertex(vertexExp.Current()));
}
int numFaces = 0;
for (vertexExp.Init(model, TopAbs_FACE); vertexExp.More(); vertexExp.Next())
{
numFaces++;
}
double creaseParameter = 5;// 1 / (tan(0.5*creaseAngle)*tan(0.5*creaseAngle)) - 1;
int numProcessed = 0;
ExtractedFeatures features;
ExtractedFeature firstFeature;
features.push_back(firstFeature);
vector<TopoDS_Vertex> vertexQueue;
vertexQueue.push_back(*(vertices.rbegin()));
vertices.erase(*(vertices.rbegin()));
//cout << "write in file";
while (features.NumFaces() < numFaces || !vertexQueue.empty())
{
TopoDS_Vertex currentVertex = vertexQueue.back();
vertexQueue.pop_back();
TopTools_ListOfShape cF = vertexToFaceMap.FindFromKey(currentVertex);
FacesSet currentFaces;
for (auto f : cF)
{
currentFaces.insert(TopoDS::Face(f));
}
Matrix3d normalTensorSum;
normalTensorSum << 0, 0, 0,
0, 0, 0,
0, 0, 0;
Vector3d normalSum(0, 0, 0);
CalcNormalTensor(currentFaces, currentVertex, normalTensorSum, normalSum);
EigenSolver<Matrix3d> normalTensorSolver(normalTensorSum, true);
Matrix3d eigenVectors = normalTensorSolver.eigenvectors().real();
Vector3d eigenValues = normalTensorSolver.eigenvalues().real();
std::sort(eigenValues.data(), eigenValues.data() + eigenValues.size());
eigenValues.reverseInPlace();
//compute vertex classification
Vector3d vertexClassification(eigenValues.x() - eigenValues.y(),
creaseParameter * (eigenValues.y() - eigenValues.z()),
creaseParameter * eigenValues.z());
Vector3d::Index vertexClass;
vertexClassification.maxCoeff(&vertexClass);
if (vertexClass > 0)
{
if (features.back().NumFaces() == 0)
{
TopoDS_Face face;
for (auto ite = currentFaces.begin(); ite != currentFaces.end(); ite++)
{
face = TopoDS::Face(*ite);
if (!features.IsFaceProcessed(face))
break;
}
features.back().AddFace(face);
numProcessed++;
auto verts = faceToVertexMap.FindFromKey(face);
TopExp_Explorer faceToVertices;
int i = 0;
for (faceToVertices.Init(face, TopAbs_VERTEX); faceToVertices.More() && i < 2; faceToVertices.Next())
{
auto v = TopoDS::Vertex(faceToVertices.Current());
if (!currentVertex.IsSame(v) && !IsVertexInQueue(vertexQueue, v))
{
vertexQueue.push_back(v);
vertices.erase(v);
i++;
}
}
}
else
{
}
features.back().AddEdgeVertex(currentVertex, (EdgeVertexType)vertexClass);
}
else
{
int n = currentFaces.size();
for (auto face : currentFaces)
{
features.back().AddFace(face);
numProcessed++;
TopExp_Explorer faceToVertices;
int i = 0;
for (faceToVertices.Init(face, TopAbs_VERTEX); faceToVertices.More() && i < 2; faceToVertices.Next())
{
auto v = TopoDS::Vertex(faceToVertices.Current());
auto cv = BRep_Tool::Pnt(v);
if (!features.back().ContainsVertex(v) && !IsVertexInQueue(vertexQueue, v))
{
vertexQueue.push_back(v);
vertices.erase(v);
i++;
}
}
}
}
features.back().AddVertex(currentVertex);
if (vertexQueue.empty() && features.NumFaces() < numFaces)
{
ExtractedFeature newFeature;
features.push_back(newFeature);
vertexQueue.push_back(*(vertices.rbegin()));
vertices.erase(*(vertices.rbegin()));
}
}
features.ProcessEdges();
return features;
}
ExtractedFeatures HybridEdgewiseNormalTensorFrameworkMethod(TopoDS_Shape model, float creaseAngle /*= 5.0f*/)
{
TopTools_IndexedDataMapOfShapeListOfShape faceToVertexMap;
TopExp::MapShapesAndAncestors(model, TopAbs_FACE, TopAbs_VERTEX, faceToVertexMap);
TopTools_IndexedDataMapOfShapeListOfShape faceToEdgeMap;
TopExp::MapShapesAndAncestors(model, TopAbs_FACE, TopAbs_EDGE, faceToEdgeMap);
TopTools_IndexedDataMapOfShapeListOfShape vertexToFaceMap;
TopExp::MapShapesAndAncestors(model, TopAbs_VERTEX, TopAbs_FACE, vertexToFaceMap);
TopTools_IndexedDataMapOfShapeListOfShape edgeToFaceMap;
TopExp::MapShapesAndAncestors(model, TopAbs_EDGE, TopAbs_FACE, edgeToFaceMap);
double creaseParameter = 50;// 1 / (tan(0.5*creaseAngle)*tan(0.5*creaseAngle)) - 1;
TopExp_Explorer topExp;
FacesMap<int> faces;
for (topExp.Init(model, TopAbs_FACE); topExp.More(); topExp.Next())
{
faces.insert({ TopoDS::Face(topExp.Current()), 0 });
}
map<TopoDS_Edge, bool, Shape_Compare> edgeMap;
double cosCreaseAngle = cos(creaseAngle*M_PI / 180);
for (topExp.Init(model, TopAbs_EDGE); topExp.More(); topExp.Next())
{
auto edge = TopoDS::Edge(topExp.Current());
auto faces = edgeToFaceMap.FindFromKey(edge);
if (faces.Size() != 2)
{
throw; //Shouldn't be possible
}
auto n1 = FaceNormal(TopoDS::Face(faces.First()));
auto n2 = FaceNormal(TopoDS::Face(faces.Last()));
n1.normalize();
n2.normalize();
//auto dotProduct = n1.dot(n2);
Matrix3d normalTensor = n1*n1.transpose() + n2*n2.transpose();
EigenSolver<Matrix3d> normalTensorSolver(normalTensor, true);
Matrix3d eigenVectors = normalTensorSolver.eigenvectors().real();
Vector3d eigenValues = normalTensorSolver.eigenvalues().real();
vector<pair<double, Vector3d>> eigenResults;
for (size_t i = 0; i < 3; i++)
{
eigenResults.push_back({ eigenValues[i],eigenVectors.col(i) });
}
std::sort(eigenResults.begin(), eigenResults.end(), [](pair<double, Vector3d> &left, pair<double, Vector3d> &right) {
return left.first > right.first;
});
Vector3d vertexClassification(eigenResults[0].first - eigenResults[1].first,
creaseParameter * (eigenResults[1].first - eigenResults[2].first),
creaseParameter * eigenResults[2].first);
Vector3d::Index vertexClass;
vertexClassification.maxCoeff(&vertexClass);
edgeMap.insert({ edge,(vertexClass>0) });
}
VerticesTypeMap vertMap;
for (topExp.Init(model, TopAbs_VERTEX); topExp.More(); topExp.Next())
{
auto v = TopoDS::Vertex(topExp.Current());
if (vertMap.count(v) == 1)
{
continue;
}
TopTools_ListOfShape cF = vertexToFaceMap.FindFromKey(v);
FacesSet currentFaces;
for (auto f : cF)
{
currentFaces.insert(TopoDS::Face(f));
}
Matrix3d normalTensorSum;
normalTensorSum << 0, 0, 0,
0, 0, 0,
0, 0, 0;
Vector3d normalSum(0, 0, 0);
auto x = converter(v);
CalcNormalTensor(currentFaces, v, normalTensorSum, normalSum);
EigenSolver<Matrix3d> normalTensorSolver(normalTensorSum, true);
Matrix3d eigenVectors = normalTensorSolver.eigenvectors().real();
Vector3d eigenValues = normalTensorSolver.eigenvalues().real();
vector<pair<double, Vector3d>> eigenResults;
for (size_t i = 0; i < 3; i++)
{
eigenResults.push_back({ eigenValues[i],eigenVectors.col(i) });
}
std::sort(eigenResults.begin(), eigenResults.end(), [](pair<double, Vector3d> &left, pair<double, Vector3d> &right) {
return left.first > right.first;
});
Vector3d vertexClassification(eigenResults[0].first - eigenResults[1].first,
creaseParameter * (eigenResults[1].first - eigenResults[2].first),
creaseParameter * eigenResults[2].first);
Vector3d::Index vertexClass;
vertexClassification.maxCoeff(&vertexClass);
vertMap[v] = (EdgeVertexType)vertexClass;
}
int numFaces = faces.size();
int numProcessed = 0;
ExtractedFeatures result;
//result.push_back(ExtractedFeature());
stack<TopoDS_Face> faceQueue;
//faceQueue.push(faces.begin()->first);
//faces[faceQueue.top()] = 1;
while (result.NumFaces() < numFaces)
{
if (faceQueue.empty())
{
result.push_back(ExtractedFeature());
for (auto kp : faces)
{
if (kp.second == 0)
{
faceQueue.push(kp.first);
faces[kp.first] = 1;
break;
}
}
}
auto currentFace = faceQueue.top();
faceQueue.pop();
//auto cV = faceToVertexMap.FindFromKey(currentFace);
VerticesSet currentVertices;
for (topExp.Init(currentFace, TopAbs_VERTEX); topExp.More(); topExp.Next())
{
currentVertices.insert(TopoDS::Vertex(topExp.Current()));
}
result.ExpandFeature(currentFace, currentVertices.begin(), currentVertices.end());
faces[currentFace] = 2;
vector<vector<TopoDS_Vertex>> classificationResults = { vector<TopoDS_Vertex>(), vector<TopoDS_Vertex>(), vector<TopoDS_Vertex>() };
for (auto v : currentVertices)
{
classificationResults[vertMap[v]].push_back(v);
}
TopTools_IndexedDataMapOfShapeListOfShape vertexToEdgeMap;
TopExp::MapShapesAndAncestors(currentFace, TopAbs_VERTEX, TopAbs_EDGE, vertexToEdgeMap);
if (classificationResults[1].size() > 1 || classificationResults[2].size() > 1)
{
#pragma region Crease-crease and corner-corner edge expansion
for (size_t i = 1; i <= 2; i++)
{
if (classificationResults[i].size() < 2)
{
continue;
}
int limit;
if (classificationResults[i].size() == 2)
{
limit = 1;
}
else
{
limit = 3;
}
for (size_t j = 0; j < limit; j++)
{
auto v = classificationResults[i][j];
auto v2 = classificationResults[i][(j + 1) % 3];
for (topExp.Init(currentFace, TopAbs_EDGE); topExp.More(); topExp.Next())
{
auto e = TopoDS::Edge(topExp.Current());
TopoDS_Vertex first;
TopoDS_Vertex second;
TopExp::Vertices(e, first, second);
if (((v.IsSame(first) && v2.IsSame(second)) || (v2.IsSame(first) && v.IsSame(second))) && !edgeMap[e])
{
auto edgeFaces = edgeToFaceMap.FindFromKey(e);
for (auto f : edgeFaces)
{
auto face = TopoDS::Face(f);
if (faces[face] == 0)
{
faceQueue.push(face);
faces[face] = 1;
break;
}
}
break;
}
}
}
}
#pragma endregion
}
#pragma region Crease-corner edge expansion
for (auto v : classificationResults[1])
{
auto currentEdges = vertexToEdgeMap.FindFromKey(v);
for (auto v2 : classificationResults[2])
{
for (topExp.Init(currentFace, TopAbs_EDGE); topExp.More(); topExp.Next())
{
auto e = TopoDS::Edge(topExp.Current());
TopoDS_Vertex first;
TopoDS_Vertex second;
TopExp::Vertices(e, first, second);
if (((v.IsSame(first) && v2.IsSame(second)) || (v2.IsSame(first) && v.IsSame(second))) && !edgeMap[e])
{
auto edgeFaces = edgeToFaceMap.FindFromKey(e);
for (auto f : edgeFaces)
{
auto face = TopoDS::Face(f);
if (faces[face] == 0)
{
faceQueue.push(face);
faces[face] = 1;
break;
}
}
break;
}
}
}
}
#pragma endregion
for (size_t i = 1; i < 3; i++)
{
result.AddEdgeVertices(classificationResults[i].begin(), classificationResults[i].end(), (EdgeVertexType)i);
}
#pragma region Planar vertex expansion
for (auto v : classificationResults[0])
{
TopTools_ListOfShape currentFaces = vertexToFaceMap.FindFromKey(v);
for (auto x : currentFaces)
{
auto f = TopoDS::Face(x);
if (faces[f] == 0)
{
faceQueue.push(f);
faces[f] = 1;
}
}
}
#pragma endregion
}
result.ProcessEdges();
return result;
}
FeatureExtractionAlgo::ExtractedFeatures EdgewiseMethod(TopoDS_Shape model, float creaseAngle /*= 5.0f*/)
{
TopTools_IndexedDataMapOfShapeListOfShape vertexToEdgeMap;
TopExp::MapShapesAndAncestors(model, TopAbs_VERTEX,TopAbs_EDGE, vertexToEdgeMap);
TopTools_IndexedDataMapOfShapeListOfShape edgeToFaceMap;
TopExp::MapShapesAndAncestors(model, TopAbs_EDGE, TopAbs_FACE, edgeToFaceMap);
TopExp_Explorer topExp;
map<TopoDS_Edge, bool, Shape_Compare> edgeMap;
double creaseParameter = 10;
double cosCreaseAngle = cos(creaseAngle*M_PI/180);
for (topExp.Init(model, TopAbs_EDGE); topExp.More();topExp.Next())
{
auto edge = TopoDS::Edge(topExp.Current());
auto faces = edgeToFaceMap.FindFromKey(edge);
if (faces.Size() != 2)
{
throw; //Shouldn't be possible
}
auto n1 = FaceNormal(TopoDS::Face(faces.First()));
auto n2 = FaceNormal(TopoDS::Face(faces.Last()));
n1.normalize();
n2.normalize();
Matrix3d normalTensor = n1*n1.transpose() + n2*n2.transpose();
EigenSolver<Matrix3d> normalTensorSolver(normalTensor, true);
Matrix3d eigenVectors = normalTensorSolver.eigenvectors().real();
Vector3d eigenValues = normalTensorSolver.eigenvalues().real();
vector<pair<double, Vector3d>> eigenResults;
for (size_t i = 0; i < 3; i++)
{
eigenResults.push_back({ eigenValues[i],eigenVectors.col(i) });
}
std::sort(eigenResults.begin(), eigenResults.end(), [](pair<double, Vector3d> &left, pair<double, Vector3d> &right) {
return left.first > right.first;
});
Vector3d vertexClassification(eigenResults[0].first - eigenResults[1].first,
creaseParameter * (eigenResults[1].first - eigenResults[2].first),
creaseParameter * eigenResults[2].first);
Vector3d::Index vertexClass;
vertexClassification.maxCoeff(&vertexClass);
edgeMap.insert({ edge,(vertexClass > 0) });
}
VerticesTypeMap vertMap;
for (topExp.Init(model, TopAbs_VERTEX); topExp.More(); topExp.Next())
{
auto v = TopoDS::Vertex(topExp.Current());
auto cE = vertexToEdgeMap.FindFromKey(v);
EdgesSet currentEdges;
for (auto e : cE)
{
currentEdges.insert(TopoDS::Edge(e));
}
int numCreases = 0;
for (auto e : currentEdges)
{
if (edgeMap[e])
{
numCreases++;
}
}
EdgeVertexType cat;
switch (numCreases)
{
case 0:
cat = PLANAR;
break;
case 2:
cat = CREASE;
break;
default:
cat = CORNER;
break;
}
vertMap[v] = cat;
}
FacesMap<int> faces;
for (topExp.Init(model, TopAbs_FACE); topExp.More(); topExp.Next())
{
faces.insert({ TopoDS::Face(topExp.Current()), 0 });
}
int numFaces = faces.size();
ExtractedFeatures result;
stack<TopoDS_Face> faceQueue;
while (result.NumFaces() < numFaces)
{
if (faceQueue.empty())
{
result.push_back(ExtractedFeature());
for (auto kp : faces)
{
if (kp.second == 0)
{
faceQueue.push(kp.first);
faces[kp.first] = 1;
break;
}
}
}
auto currentFace = faceQueue.top();
faceQueue.pop();
for (topExp.Init(currentFace, TopAbs_EDGE); topExp.More(); topExp.Next())
{
auto currentEdge = TopoDS::Edge(topExp.Current());
if (!edgeMap[currentEdge])
{
auto edgeFaces = edgeToFaceMap.FindFromKey(currentEdge);
for (auto f:edgeFaces)
{
if (!currentFace.IsSame(f) && faces[TopoDS::Face(f)]==0)
{
faceQueue.push(TopoDS::Face(f));
faces[TopoDS::Face(f)] = 1;
}
}
}
}
VerticesSet currentVertices;
for (topExp.Init(currentFace, TopAbs_VERTEX); topExp.More(); topExp.Next())
{
currentVertices.insert(TopoDS::Vertex(topExp.Current()));
}
result.ExpandFeature(currentFace, currentVertices.begin(), currentVertices.end());
faces[currentFace] = 2;
for (auto v:currentVertices)
{
if (vertMap[v] != PLANAR)
{
result.AddEdgeVertex(v, vertMap[v]);
}
}
}
result.ProcessEdges();
return result;
}
double FaceNormalWeightN(TopoDS_Face currentFace, TopoDS_Vertex currentVertex)
{
return 1;
}
double FaceNormalWeightMWA(TopoDS_Face currentFace, TopoDS_Vertex currentVertex)
{
TopTools_IndexedDataMapOfShapeListOfShape vertexToEdgeMap;
TopExp::MapShapesAndAncestors(currentFace, TopAbs_VERTEX, TopAbs_EDGE, vertexToEdgeMap);
auto currentEdges = vertexToEdgeMap.FindFromKey(currentVertex);
TopoDS_Edge edge1 = TopoDS::Edge(currentEdges.First());
auto v11 = BRep_Tool::Pnt(TopExp::FirstVertex(edge1));
auto v12 = BRep_Tool::Pnt(TopExp::LastVertex(edge1));
Vector3d e1(v12.X() - v11.X(), v12.Y() - v11.Y(), v12.Z() - v11.Z());
TopoDS_Edge edge2 = TopoDS::Edge(currentEdges.Last());
auto v21 = BRep_Tool::Pnt(TopExp::FirstVertex(edge2));
auto v22 = BRep_Tool::Pnt(TopExp::LastVertex(edge2));
Vector3d e2(v22.X() - v21.X(), v22.Y() - v21.Y(), v22.Z() - v21.Z());
if (!TopExp::FirstVertex(edge1).IsSame(currentVertex))
e1 *= -1;
if (!TopExp::FirstVertex(edge2).IsSame(currentVertex))
e2 *= -1;
//Vector3d crossProduct = e1.cross(e2);
e1.normalize();
e2.normalize();
double angle = acos(e1.dot(e2));
double currentWeight = angle;// / (e1.dot(e1)*e2.dot(e2));
return currentWeight;
}
double FaceNormalWeightMWAAT(TopoDS_Face currentFace, TopoDS_Vertex currentVertex)
{
TopTools_IndexedDataMapOfShapeListOfShape vertexToEdgeMap;
TopExp::MapShapesAndAncestors(currentFace, TopAbs_VERTEX, TopAbs_EDGE, vertexToEdgeMap);
auto currentEdges = vertexToEdgeMap.FindFromKey(currentVertex);
TopoDS_Edge edge1 = TopoDS::Edge(currentEdges.First());
auto v11 = BRep_Tool::Pnt(TopExp::FirstVertex(edge1));
auto v12 = BRep_Tool::Pnt(TopExp::LastVertex(edge1));
Vector3d e1(v11.X() - v12.X(), v11.Y() - v12.Y(), v11.Z() - v12.Z());
TopoDS_Edge edge2 = TopoDS::Edge(currentEdges.Last());
auto v21 = BRep_Tool::Pnt(TopExp::FirstVertex(edge2));
auto v22 = BRep_Tool::Pnt(TopExp::LastVertex(edge2));
Vector3d e2(v21.X() - v22.X(), v21.Y() - v22.Y(), v21.Z() - v22.Z());
Vector3d crossProduct = e1.cross(e2);
double currentWeight = crossProduct.norm();// / (e1.dot(e1)*e2.dot(e2));
return currentWeight;
}
double FaceNormalWeightMWSLER(TopoDS_Face currentFace, TopoDS_Vertex currentVertex)
{
TopTools_IndexedDataMapOfShapeListOfShape vertexToEdgeMap;
TopExp::MapShapesAndAncestors(currentFace, TopAbs_VERTEX, TopAbs_EDGE, vertexToEdgeMap);
auto currentEdges = vertexToEdgeMap.FindFromKey(currentVertex);
TopoDS_Edge edge1 = TopoDS::Edge(currentEdges.First());
auto v11 = BRep_Tool::Pnt(TopExp::FirstVertex(edge1));
auto v12 = BRep_Tool::Pnt(TopExp::LastVertex(edge1));
Vector3d e1(v11.X() - v12.X(), v11.Y() - v12.Y(), v11.Z() - v12.Z());
TopoDS_Edge edge2 = TopoDS::Edge(currentEdges.Last());
auto v21 = BRep_Tool::Pnt(TopExp::FirstVertex(edge2));
auto v22 = BRep_Tool::Pnt(TopExp::LastVertex(edge2));
Vector3d e2(v21.X() - v22.X(), v21.Y() - v22.Y(), v21.Z() - v22.Z());
Vector3d crossProduct = e1.cross(e2);
double currentWeight = crossProduct.norm() / (e1.dot(e1)*e2.dot(e2));
return currentWeight;
}
Vector3d FaceNormal(TopoDS_Face face)
{
TopoDS_Face currentFace = face;
Standard_Real umin, umax, vmin, vmax;
BRepTools::UVBounds(currentFace, umin, umax, vmin, vmax);
auto currentSurface = BRep_Tool::Surface(currentFace);
GeomLProp_SLProps props(currentSurface, umin, vmin, 1, 0.01);
gp_Dir normal = props.Normal();
return Vector3d(normal.X(), normal.Y(), normal.Z());
}
template<typename List>
void CalcNormalTensor(List ¤tFaces, TopoDS_Vertex v, Matrix3d &normalTensorSum, Vector3d &normalSum)
{
for (auto f: currentFaces)
{
auto currentNormal = FaceNormal(f);
auto currentWeight = FaceNormalWeightMWA(f, v);
normalTensorSum += currentWeight * currentNormal * currentNormal.transpose();
normalSum += currentWeight * currentNormal;
}
normalSum.normalize();
}
bool IsVertexInQueue(vector<TopoDS_Vertex> list, TopoDS_Vertex vertex)
{
for (size_t i = 0; i < list.size(); i++)
{
if (vertex.IsSame(list[i]))
{
return true;
}
}
return false;
}
int FindVertex(vector<TopoDS_Vertex> list, TopoDS_Vertex vertex)
{
int i;
for (i = 0; i < list.size(); i++)
{
if (vertex.IsSame(list[i]))
{
return i;
}
}
return -1;
}
bool ExtractedFeatures::IsFaceProcessed(TopoDS_Face face)
{
for (size_t i = 0; i < this->size(); i++)
{
auto currentFeature = this->at(i);
if (currentFeature.ContainsFace(face))
return true;
}
return false;
}
bool ExtractedFeatures::IsVertexProcessed(TopoDS_Vertex vertex)
{
for (size_t i = 0; i < this->size(); i++)
{
auto currentFeature = this->at(i);
if (currentFeature.ContainsVertex(vertex))
return true;
}
return false;
}
int ExtractedFeatures::NumFaces()
{
int result = 0;
for (size_t i = 0; i < this->size(); i++)
{
result += this->at(i).NumFaces();
}
return result;
}
void ExtractedFeatures::ProcessEdges()
{
for (size_t i = 0; i < size(); i++)
{
at(i).ProcessEdges();
}
}
int ExtractedFeatures::NumVerts()
{
int sum = 0;
for (auto f:*this)
{
sum += f.GetVertices().size();
}
return sum;
}
int ExtractedFeatures::NumEdgeVerts()
{
int sum = 0;
for (auto f:*this)
{
sum += f.NumEdgeVertices();
}
return sum;
}
bool ExtractedFeature::ContainsFace(TopoDS_Face face)
{
for (size_t i = 0; i < faces.size(); i++)
{
if (face.IsSame(faces[i]))
return true;
}
return false;
}
bool ExtractedFeature::ContainsVertex(TopoDS_Vertex vertex)
{
for (auto v:vertices)
{
if (vertex.IsSame(v.first))
return true;
}
return false;
}
TopoDS_Vertex ExtractedFeature::GetNearbyEdgeVertex(TopoDS_Shape shape, TopoDS_Vertex vertex)
{
return vertex;
}
void ExtractedFeature::ProcessEdges()
{
if (edgeVertices.size()==0)
{
return;
}
TopoDS_Compound shape;
TopoDS_Builder builder;
builder.MakeCompound(shape);
for (size_t i = 0; i < NumFaces(); i++)
{
builder.Add(shape, GetFace(i));
}
TopTools_IndexedDataMapOfShapeListOfShape vertexToEdgeMap;
TopExp::MapShapesAndAncestors(shape, TopAbs_VERTEX, TopAbs_EDGE, vertexToEdgeMap);
TopTools_IndexedDataMapOfShapeListOfShape edgeToFaceMap;
TopExp::MapShapesAndAncestors(shape, TopAbs_EDGE, TopAbs_FACE, edgeToFaceMap);
map<TopoDS_Vertex, pair<EdgeVertexType, int>,Shape_Compare> edgeVertexMap;
map<int, ExtractedFeatureEdge> edgeMap;
queue<int> edgeQueue;
int cornerCount = 0;
for (auto e:edgeVertices)
{
edgeVertexMap.insert({ e.first,{e.second,-1} });
if (e.second==CORNER)
{
cornerCount++;
}
}
int numProcessed = 0;
while (numProcessed<edgeVertices.size()||!edgeQueue.empty())
{
#pragma region Queue populate
if (edgeQueue.empty())
{
bool posFirstCorner = false;// = FindCornerVertex();
EdgeType type;
TopoDS_Vertex vertex;
for (auto p : edgeVertexMap)
{
if (p.second.first == CORNER && p.second.second ==-1)
{
posFirstCorner = true;
vertex = p.first;
type = FINITE;
break;
}
}
if (!posFirstCorner)
{
//vertex = edgeVertices[0];
for (auto e : edgeVertexMap)
{
if (e.second.second==-1)
{
vertex = e.first;
break;
}
}
type = CONTINUOUS;
}
//else
//{
// vertex = edgeVertices[posFirstCorner];
// type = FINITE;
//}
//verticesToProcess
vector<TopoDS_Vertex> verticesToProcess = { vertex };
//while there are vertices to process
while (verticesToProcess.size()>0)
{
auto vertex = verticesToProcess.back();
verticesToProcess.pop_back();
auto edges = vertexToEdgeMap.FindFromKey(vertex);
numProcessed++;
for (auto e : edges)
{
auto edge = TopoDS::Edge(e);
auto faces = edgeToFaceMap.FindFromKey(edge);
if (faces.Size() == 1)
{
//if corner add to vertices to process
CreateEdge(vertex, edge, type, edgeVertexMap, edgeMap, edgeQueue, numProcessed, verticesToProcess);
}
}
}
if (edgeQueue.empty())
{
continue;
}
}
#pragma endregion
auto queueNum = edgeQueue.front();
if (edgeMap.count(queueNum)==0)
{
edgeQueue.pop();
continue;
}
auto ¤tEdge = edgeMap[queueNum];
auto currentVertex = currentEdge.back();
auto edges = vertexToEdgeMap.FindFromKey(currentVertex);
for (auto e:edges)
{
auto edge = TopoDS::Edge(e);
auto faces = edgeToFaceMap.FindFromKey(edge);
if (faces.Size() == 1)
{
TopoDS_Vertex first, second, v;
TopExp::Vertices(edge, first, second);
if (currentVertex.IsSame(first))
{
v = second;
}
else
{
v = first;
}
auto prevVertex = currentEdge[currentEdge.size() - 2];
if (v.IsSame(prevVertex))//If the edge is going backwards along the extracted edge
{
continue;
}
if (currentEdge.Type() == CONTINUOUS && v.IsSame(currentEdge.front()))//If the edge completes a loop
{
edgeQueue.pop();
break;
}
if (edgeVertexMap[v].second!=-1 && edgeVertexMap[v].first == CREASE) //Next vertex is already in an extracted edge
{
int edgePos = edgeVertexMap[v].second;
auto oldEdge = edgeMap[edgePos];
for (auto ite = oldEdge.rbegin(); ite != oldEdge.rend(); ite++)
{
auto ov = *ite;
currentEdge.AddVertex(ov);
edgeVertexMap[ov].second = queueNum;
}
edgeMap.erase(edgePos);
edgeQueue.pop();
break;
}
if (edgeVertexMap[v].first==CORNER)
{
vector<TopoDS_Vertex> verticesToProcess = { v };
while (verticesToProcess.size()>0)
{
auto v = verticesToProcess.back();
verticesToProcess.pop_back();
auto edges = vertexToEdgeMap.FindFromKey(v);
//numProcessed++;
for (auto e : edges)
{
auto edge = TopoDS::Edge(e);
auto faces = edgeToFaceMap.FindFromKey(edge);
if (faces.Size() == 1)
{
CreateEdge(v, edge, FINITE, edgeVertexMap, edgeMap, edgeQueue, numProcessed, verticesToProcess);
}
}
}
edgeQueue.pop();
}
currentEdge.AddVertex(v);
edgeVertexMap[v].second = queueNum;
numProcessed++;
break;
}
}
}
for (auto e : edgeMap)
{
extractedEdges.push_back(e.second);
}
ProcessEdgeGroups();
}