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/***************************************************************************
* Copyright (c) 2012 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include <sstream>
#include <BRepBuilderAPI_MakePolygon.hxx>
#include <BRep_Builder.hxx>
#include <GeomAPI_ProjectPointOnSurf.hxx>
#include <Geom_Plane.hxx>
#include <Standard_Failure.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Wire.hxx>
#include <App/Application.h>
#include <App/Document.h>
#include <App/DocumentObjectGroup.h>
#include <Base/Console.h>
#include <Gui/WaitCursor.h>
#include <Mod/Mesh/App/Core/Algorithm.h>
#include <Mod/Mesh/App/Core/Approximation.h>
#include <Mod/Mesh/App/Core/Curvature.h>
#include <Mod/Mesh/App/Core/Segmentation.h>
#include <Mod/Mesh/App/Core/Smoothing.h>
#include <Mod/Mesh/App/MeshFeature.h>
#include <Mod/Part/App/FaceMakerCheese.h>
#include <Mod/Part/App/PartFeature.h>
#include "Segmentation.h"
#include "ui_Segmentation.h"
using namespace ReverseEngineeringGui;
Segmentation::Segmentation(Mesh::Feature* mesh, QWidget* parent, Qt::WindowFlags fl)
: QWidget(parent, fl)
, ui(new Ui_Segmentation)
, myMesh(mesh)
{
ui->setupUi(this);
ui->numPln->setRange(1, std::numeric_limits<int>::max());
ui->numPln->setValue(100);
ui->checkBoxSmooth->setChecked(false);
}
Segmentation::~Segmentation() = default;
void Segmentation::accept()
{
if (myMesh.expired()) {
return;
}
Gui::WaitCursor wc;
bool createUnused = ui->createUnused->isChecked();
bool createCompound = ui->createCompound->isChecked();
BRep_Builder builder;
TopoDS_Compound compound;
builder.MakeCompound(compound);
const Mesh::MeshObject* mesh = myMesh.get<Mesh::Feature>()->Mesh.getValuePtr();
// make a copy because we might smooth the mesh before
MeshCore::MeshKernel kernel = mesh->getKernel();
MeshCore::MeshAlgorithm algo(kernel);
if (ui->checkBoxSmooth->isChecked()) {
MeshCore::LaplaceSmoothing smoother(kernel);
smoother.Smooth(ui->smoothSteps->value());
}
MeshCore::MeshSegmentAlgorithm finder(kernel);
MeshCore::MeshCurvature meshCurv(kernel);
meshCurv.ComputePerVertex();
// First create segments by curavture to get the surface type
std::vector<MeshCore::MeshSurfaceSegmentPtr> segm;
if (ui->groupBoxPln->isChecked()) {
segm.emplace_back(
std::make_shared<MeshCore::MeshCurvaturePlanarSegment>(
meshCurv.GetCurvature(),
ui->numPln->value(),
ui->curvTolPln->value()
)
);
}
finder.FindSegments(segm);
std::vector<MeshCore::MeshSurfaceSegmentPtr> segmSurf;
for (const auto& it : segm) {
const std::vector<MeshCore::MeshSegment>& data = it->GetSegments();
// For each planar segment compute a plane and use this then for a more accurate 2nd
// segmentation
if (strcmp(it->GetType(), "Plane") == 0) {
for (const auto& jt : data) {
std::vector<MeshCore::PointIndex> indexes = kernel.GetFacetPoints(jt);
MeshCore::PlaneFit fit;
fit.AddPoints(kernel.GetPoints(indexes));
if (fit.Fit() < std::numeric_limits<float>::max()) {
Base::Vector3f base = fit.GetBase();
Base::Vector3f axis = fit.GetNormal();
MeshCore::AbstractSurfaceFit* fitter = new MeshCore::PlaneSurfaceFit(base, axis);
segmSurf.emplace_back(
std::make_shared<MeshCore::MeshDistanceGenericSurfaceFitSegment>(
fitter,
kernel,
ui->numPln->value(),
ui->distToPln->value()
)
);
}
}
}
}
finder.FindSegments(segmSurf);
App::Document* document = App::GetApplication().getActiveDocument();
document->openTransaction("Segmentation");
std::string internalname = "Segments_";
internalname += myMesh->getNameInDocument();
auto* group = document->addObject<App::DocumentObjectGroup>(internalname.c_str());
std::string labelname = "Segments ";
labelname += myMesh->Label.getValue();
group->Label.setValue(labelname);
std::vector<App::DocumentObject*> failures;
algo.SetFacetFlag(MeshCore::MeshFacet::TMP0);
for (const auto& it : segmSurf) {
const std::vector<MeshCore::MeshSegment>& data = it->GetSegments();
std::shared_ptr<MeshCore::MeshDistanceGenericSurfaceFitSegment> genSegm
= std::dynamic_pointer_cast<MeshCore::MeshDistanceGenericSurfaceFitSegment>(it);
bool isPlanar = (strcmp(genSegm->GetType(), "Plane") == 0);
for (const auto& jt : data) {
// reset flag for facets of segment
algo.ResetFacetsFlag(jt, MeshCore::MeshFacet::TMP0);
Mesh::MeshObject* segment = mesh->meshFromSegment(jt);
Mesh::Feature* feaSegm = static_cast<Mesh::Feature*>(
group->addObject("Mesh::Feature", "Segment")
);
Mesh::MeshObject* feaMesh = feaSegm->Mesh.startEditing();
feaMesh->swap(*segment);
feaSegm->Mesh.finishEditing();
delete segment;
std::stringstream label;
label << feaSegm->Label.getValue() << " (" << it->GetType() << ")";
feaSegm->Label.setValue(label.str());
if (createCompound) {
std::list<std::vector<Base::Vector3f>> bounds;
algo.GetFacetBorders(jt, bounds);
// Handle planar segments
if (isPlanar) {
std::vector<float> par = genSegm->Parameters();
gp_Pnt loc(par.at(0), par.at(1), par.at(2));
gp_Dir dir(par.at(3), par.at(4), par.at(5));
Handle(Geom_Plane) hPlane(new Geom_Plane(loc, dir));
std::vector<TopoDS_Wire> wires;
for (const auto& bound : bounds) {
// project the points onto the surface
std::vector<gp_Pnt> polygon;
std::transform(
bound.begin(),
bound.end(),
std::back_inserter(polygon),
[&hPlane](const Base::Vector3f& v) {
gp_Pnt p(v.x, v.y, v.z);
return GeomAPI_ProjectPointOnSurf(p, hPlane).NearestPoint();
}
);
BRepBuilderAPI_MakePolygon mkPoly;
for (std::vector<gp_Pnt>::reverse_iterator it = polygon.rbegin();
it != polygon.rend();
++it) {
mkPoly.Add(*it);
}
if (mkPoly.IsDone()) {
wires.push_back(mkPoly.Wire());
}
}
try {
TopoDS_Shape shape = Part::FaceMakerCheese::makeFace(wires);
if (!shape.IsNull()) {
builder.Add(compound, shape);
}
else {
failures.push_back(feaSegm);
Base::Console().warning(
"Failed to create face from %s\n",
feaSegm->Label.getValue()
);
}
}
catch (Standard_Failure&) {
failures.push_back(feaSegm);
Base::Console().error(
"Fatal failure to create face from %s\n",
feaSegm->Label.getValue()
);
}
}
}
}
}
if (createUnused) {
// collect all facets that don't have set the flag TMP0
std::vector<MeshCore::FacetIndex> unusedFacets;
algo.GetFacetsFlag(unusedFacets, MeshCore::MeshFacet::TMP0);
if (!unusedFacets.empty()) {
std::unique_ptr<Mesh::MeshObject> segment(mesh->meshFromSegment(unusedFacets));
Mesh::Feature* feaSegm = static_cast<Mesh::Feature*>(
group->addObject("Mesh::Feature", "Unused")
);
Mesh::MeshObject* feaMesh = feaSegm->Mesh.startEditing();
feaMesh->swap(*segment);
feaSegm->Mesh.finishEditing();
}
}
if (createCompound) {
Part::Feature* shapeFea = static_cast<Part::Feature*>(
group->addObject("Part::Feature", "Compound")
);
shapeFea->Shape.setValue(compound);
// create a sub-group where to move the problematic segments
if (!failures.empty()) {
App::DocumentObjectGroup* subgroup = static_cast<App::DocumentObjectGroup*>(
group->addObject("App::DocumentObjectGroup", "Failed")
);
failures = group->removeObjects(failures);
subgroup->Group.setValues(failures);
}
}
document->commitTransaction();
}
void Segmentation::changeEvent(QEvent* e)
{
if (e->type() == QEvent::LanguageChange) {
ui->retranslateUi(this);
}
QWidget::changeEvent(e);
}
// ---------------------------------------
/* TRANSLATOR MeshGui::TaskRemoveComponents */
TaskSegmentation::TaskSegmentation(Mesh::Feature* mesh)
{
widget = new Segmentation(mesh);
addTaskBox(widget, false);
}
bool TaskSegmentation::accept()
{
widget->accept();
return true;
}
#include "moc_Segmentation.cpp"
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