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Optmize hole fixer

master
huxingyi 2020-04-15 07:27:01 +09:30
parent 5426b1afcc
commit 09aebfb9f8
2 changed files with 47 additions and 14 deletions
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57
src/fixholes.cpp
View File

@ -2,29 +2,49 @@
#include <set>
#include <QDebug>
#include <simpleuv/triangulate.h>
#include <unordered_set>
#include <unordered_map>
#include "fixholes.h"
#include "util.h"
static void buildEdgeToFaceMap(const std::vector<std::vector<size_t>> &faces, std::map<std::pair<size_t, size_t>, size_t> &edgeToFaceMap)
void fixHoles(const std::vector<QVector3D> &verticies, std::vector<std::vector<size_t>> &faces)
{
edgeToFaceMap.clear();
std::map<std::pair<size_t, size_t>, std::unordered_set<size_t>> edgeToFaceSetMap;
for (decltype(faces.size()) index = 0; index < faces.size(); ++index) {
const auto &face = faces[index];
for (size_t i = 0; i < face.size(); i++) {
size_t j = (i + 1) % face.size();
edgeToFaceMap[{face[i], face[j]}] = index;
}
edgeToFaceSetMap[{face[i], face[j]}].insert(index);
}
}
void fixHoles(const std::vector<QVector3D> &verticies, std::vector<std::vector<size_t>> &faces)
{
std::unordered_set<size_t> invalidFaces;
std::map<std::pair<size_t, size_t>, size_t> edgeToFaceMap;
buildEdgeToFaceMap(faces, edgeToFaceMap);
for (const auto &it: edgeToFaceSetMap) {
if (1 == it.second.size()) {
continue;
}
for (const auto &loopFaceIndex: it.second) {
invalidFaces.insert(loopFaceIndex);
}
}
for (const auto &it: edgeToFaceSetMap) {
if (1 == it.second.size()) {
size_t index = *it.second.begin();
if (invalidFaces.find(index) == invalidFaces.end()) {
edgeToFaceMap.insert({it.first, index});
}
}
}
std::map<size_t, std::vector<size_t>> holeVertexLink;
std::vector<size_t> startVertices;
for (const auto &face: faces) {
for (size_t index = 0; index < faces.size(); ++index) {
if (invalidFaces.find(index) != invalidFaces.end())
continue;
const auto &face = faces[index];
for (size_t i = 0; i < face.size(); i++) {
size_t j = (i + 1) % face.size();
auto findOppositeFaceResult = edgeToFaceMap.find({face[j], face[i]});
@ -130,14 +150,27 @@ void fixHoles(const std::vector<QVector3D> &verticies, std::vector<std::vector<s
simpleuv::triangulate(simpleuvVertices, newFaces, holeRings[i].first);
}
//saveAsObj("fixholes_input.obj", verticies, faces);
saveAsObj("fixholes_input.obj", verticies, faces);
//std::vector<std::vector<size_t>> addedFaces;
//std::vector<std::vector<size_t>> removedFaces;
std::vector<std::vector<size_t>> fixedFaces;
for (size_t i = 0; i < faces.size(); ++i) {
if (invalidFaces.find(i) != invalidFaces.end()) {
//removedFaces.push_back(faces[i]);
continue;
}
fixedFaces.push_back(faces[i]);
}
//saveAsObj("fixholes_output_without_newfaces.obj", verticies, fixedFaces);
for (const auto &it: newFaces) {
faces.push_back(std::vector<size_t> {it.indices[0], it.indices[1], it.indices[2]});
fixedFaces.push_back(std::vector<size_t> {it.indices[0], it.indices[1], it.indices[2]});
//addedFaces.push_back(std::vector<size_t> {it.indices[0], it.indices[1], it.indices[2]});
}
//saveAsObj("fixholes_output.obj", verticies, faces);
//saveAsObj("fixholes_output.obj", verticies, fixedFaces);
//saveAsObj("fixholes_added.obj", verticies, addedFaces);
//saveAsObj("fixholes_removed.obj", verticies, removedFaces);
qDebug() << "fixHoles holeRings:" << holeRings.size() << "newFaces:" << newFaces.size();
faces = fixedFaces;
//qDebug() << "fixHoles holeRings:" << holeRings.size() << "newFaces:" << newFaces.size() << "removedFaces:" << removedFaces.size();
}

2
src/triangulatefaces.cpp
View File

@ -49,7 +49,7 @@ bool triangulateFacesWithoutKeepVertices(std::vector<QVector3D> &vertices, const
bool isEar = true;
for (size_t x = 0; x < fillRing.size() - 3; ++x) {
auto h = (i + 3 + x) % fillRing.size();
auto fourth = vertexToEigenVector3d(vertices[fillRing[h]]);
auto fourth = vertices[fillRing[h]];
if (pointInTriangle(enter, cone, leave, fourth)) {
isEar = false;
break;