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-rw-r--r--assetFactory/faceController.cpp186
1 files changed, 118 insertions, 68 deletions
diff --git a/assetFactory/faceController.cpp b/assetFactory/faceController.cpp
index 1ec1467..b305f1c 100644
--- a/assetFactory/faceController.cpp
+++ b/assetFactory/faceController.cpp
@@ -2,90 +2,140 @@
#include "collections.hpp"
#include "maths.h"
#include "modelFactoryMesh.h"
+#include "ray.hpp"
void
-FaceController::apply(ModelFactoryMesh & mesh, const StyleStack & parents, const std::string & name,
+FaceController::apply(ModelFactoryMesh & mesh, const StyleStack & parents, const std::string & names,
Shape::CreatedFaces & faces) const
{
- const auto getAdjacentFaceName = [&mesh](const auto & ofrange, OpenMesh::FaceHandle nf) -> std::string {
- const auto nfrange = mesh.ff_range(nf);
- if (const auto target = std::find_first_of(ofrange.begin(), ofrange.end(), nfrange.begin(), nfrange.end());
- target != ofrange.end()) {
- return mesh.property(mesh.nameFaceProperty, *target);
- };
- return {};
- };
+ std::stringstream nameStream {names};
+ std::for_each(std::istream_iterator<std::string>(nameStream), std::istream_iterator<std::string> {},
+ [&](const auto & name) {
+ applySingle(mesh, parents, name, faces);
+ });
+}
- const auto controlledFaces {materializeRange(faces.equal_range(name))};
- if (controlledFaces.empty()) {
- throw std::runtime_error("Named face(s) do not exist: " + name);
- }
+void
+FaceController::applySingle(ModelFactoryMesh & mesh, const StyleStack & parents, const std::string & name,
+ Shape::CreatedFaces & faces) const
+{
+ auto controlledFaces {materializeRange(faces.equal_range(name))};
- if (!type.empty()) {
- const auto mutation = getMatrix();
+ if (!type.empty() || !splits.empty()) {
faces.erase(name);
- for (const auto & cf : controlledFaces) {
- // get points
- const auto baseVertices {materializeRange(mesh.fv_range(cf.second))};
- auto points = std::accumulate(baseVertices.begin(), baseVertices.end(), std::vector<glm::vec3> {},
- [&mesh](auto && out, auto && v) {
- out.push_back(mesh.point(v));
- return std::move(out);
- });
- const auto vertexCount = points.size();
- const auto centre
- = std::accumulate(points.begin(), points.end(), glm::vec3 {}) / static_cast<float>(vertexCount);
- if (type == "extrude") {
- Shape::CreatedFaces newFaces;
- // mutate points
- std::for_each(points.begin(), points.end(), [&mutation, &centre](auto && p) {
- p = centre + ((p - centre) % mutation);
- });
- // create new vertices
- std::vector<OpenMesh::VertexHandle> vertices;
- std::transform(points.begin(), points.end(), std::back_inserter(vertices), [&mesh](auto && p) {
- return mesh.add_vertex(p);
- });
- // create new faces
- const auto ofrange = materializeRange(mesh.ff_range(cf.second));
- mesh.delete_face(cf.second);
- for (size_t idx {}; idx < vertexCount; ++idx) {
- const auto next = (idx + 1) % vertexCount;
- const auto newFace
- = mesh.add_face({baseVertices[idx], baseVertices[next], vertices[next], vertices[idx]});
- auto & name = mesh.property(mesh.nameFaceProperty, newFace);
- name = getAdjacentFaceName(ofrange, newFace);
- newFaces.emplace(name, newFace);
- }
- newFaces.emplace(name, mesh.add_face(vertices));
- if (smooth) {
- for (const auto & [name, face] : newFaces) {
- mesh.property(mesh.smoothFaceProperty, face) = true;
- }
- }
- applyStyle(mesh, parents + this, newFaces);
- for (const auto & [name, faceController] : faceControllers) {
- faceController->apply(mesh, parents + this, name, newFaces);
- }
- faces.merge(std::move(newFaces));
- }
- else {
- mesh.property(mesh.smoothFaceProperty, cf.second) = smooth;
- applyStyle(mesh, parents + this, cf.second);
+ }
+ for (auto & [faceName, faceHandle] : controlledFaces) {
+ Shape::CreatedFaces newFaces;
+ for (const auto & [newFaceSuffix, splitDef] : splits) {
+ newFaces.merge(split(mesh, name + newFaceSuffix, faceHandle, *splitDef));
+ }
+ if (type == "extrude") {
+ newFaces.merge(extrude(mesh, name, faceHandle));
+ }
+ if (!newFaces.empty()) {
+ applyStyle(mesh, parents + this, newFaces);
+ for (const auto & [subFaceName, faceController] : faceControllers) {
+ faceController->apply(mesh, parents + this, subFaceName, newFaces);
}
+ faces.merge(std::move(newFaces));
+ }
+ else {
+ applyStyle(mesh, parents + this, faceHandle);
+ }
+ }
+}
+
+Shape::CreatedFaces
+FaceController::extrude(ModelFactoryMesh & mesh, const std::string & faceName, OpenMesh::FaceHandle faceHandle) const
+{
+ // get points
+ const auto baseVertices {materializeRange(mesh.fv_range(faceHandle))};
+ // create new vertices
+ const auto vertices
+ = baseVertices * [&mesh, mutation = getMatrix(), centre = mesh.calc_face_centroid(faceHandle)](auto && v) {
+ return mesh.add_vertex(centre + ((mesh.point(v) - centre) % mutation));
+ };
+ // get new faces names
+ const auto vertexCount = baseVertices.size();
+ std::vector<std::string> faceNames;
+ for (size_t idx {}; idx < vertexCount; ++idx) {
+ const auto next = (idx + 1) % vertexCount;
+ const auto existingEdge = mesh.find_halfedge(baseVertices[idx], baseVertices[next]);
+ faceNames.push_back(mesh.property(mesh.nameAdjFaceProperty, existingEdge));
+ }
+ // create new faces
+ mesh.delete_face(faceHandle);
+ Shape::CreatedFaces newFaces;
+ for (size_t idx {}; idx < vertexCount; ++idx) {
+ const auto next = (idx + 1) % vertexCount;
+ newFaces.emplace(mesh.add_namedFace(
+ faceNames[idx], baseVertices[idx], baseVertices[next], vertices[next], vertices[idx]));
+ }
+ newFaces.emplace(mesh.add_namedFace(faceName, vertices));
+
+ return newFaces;
+}
+
+Shape::CreatedFaces
+FaceController::split(
+ ModelFactoryMesh & mesh, const std::string & name, OpenMesh::FaceHandle & fh, const Split & split) const
+{
+ // Map face vertex handles to their relationship to the split plane
+ const auto vertices = materializeRange(mesh.fv_range(fh));
+ auto vertexRelations = vertices * [&split, &mesh](OpenMesh::VertexHandle vh) {
+ return std::make_pair(vh, split.getRelation(mesh.point(vh)));
+ };
+ // Insert new vertices where half edges intersect the split plane
+ for (size_t curIdx = 0; curIdx < vertexRelations.size(); ++curIdx) {
+ const size_t nextIdx = (curIdx + 1) % vertexRelations.size();
+ const auto &current = vertexRelations[curIdx], next = vertexRelations[nextIdx];
+ if (GeometricPlane::isIntersect(current.second, next.second)) {
+ const auto ray = Ray::fromPoints(mesh.point(current.first), mesh.point(next.first));
+ const auto intersect = split.getRayIntersectPosition(ray);
+ assert(intersect);
+ const auto newv = mesh.add_vertex(intersect->position);
+ auto where = vertexRelations.begin();
+ ++curIdx;
+ std::advance(where, curIdx);
+ vertexRelations.emplace(where, newv, GeometricPlane::PlaneRelation::On);
}
}
- else {
- for (const auto & cf : controlledFaces) {
- applyStyle(mesh, parents + this, cf.second);
+ // Create vertex vectors
+ std::array<std::vector<OpenMesh::VertexHandle>, 2> out;
+ auto filterVertices = [&vertexRelations](auto & out, auto notRelation) {
+ for (const auto & vhr : vertexRelations) {
+ if (vhr.second != notRelation) {
+ out.emplace_back(vhr.first);
+ }
}
+ };
+ filterVertices(out.front(), GeometricPlane::PlaneRelation::Above);
+ filterVertices(out.back(), GeometricPlane::PlaneRelation::Below);
+
+ if (out.back().size() > 2) {
+ Shape::CreatedFaces newFaces;
+ const auto oldName = mesh.property(mesh.nameFaceProperty, fh);
+ mesh.delete_face(fh);
+ const auto newf1 = newFaces.insert(mesh.add_namedFace(oldName, out.front()))->second;
+ const auto newf2 = newFaces.insert(mesh.add_namedFace(name, out.back()))->second;
+ mesh.copy_property(mesh.smoothFaceProperty, fh, newf1);
+ mesh.copy_property(mesh.smoothFaceProperty, fh, newf2);
+ fh = newf1;
+ return newFaces;
}
+ return {};
}
bool
FaceController::persist(Persistence::PersistenceStore & store)
{
- return STORE_TYPE && STORE_MEMBER(id) && Style::persist(store) && STORE_MEMBER(type) && STORE_MEMBER(smooth)
- && Mutation::persist(store)
+ return STORE_TYPE && STORE_MEMBER(id) && Style::persist(store) && STORE_MEMBER(type) && Mutation::persist(store)
+ && STORE_NAME_HELPER("split", splits, Persistence::MapByMember<Splits>)
&& STORE_NAME_HELPER("face", faceControllers, Persistence::MapByMember<FaceControllers>);
}
+
+bool
+FaceController::Split::persist(Persistence::PersistenceStore & store)
+{
+ return STORE_TYPE && STORE_MEMBER(id) && STORE_MEMBER(origin) && STORE_MEMBER(normal);
+}
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