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ab035c45869c2994a1af65cba06936e603c42be4
create/src/Mod/Part/App/FeatureMirroring.cpp
Markus Reitböck 68114945fa Part: use CMake to generate precompiled headers on all platforms 
"Professional CMake" book suggest the following:

"Targets should build successfully with or without compiler support for precompiled headers. It
 should be considered an optimization, not a requirement. In particular, do not explicitly include a
 precompile header (e.g. stdafx.h) in the source code, let CMake force-include an automatically
 generated precompile header on the compiler command line instead. This is more portable across
 the major compilers and is likely to be easier to maintain. It will also avoid warnings being
 generated from certain code checking tools like iwyu (include what you use)."

Therefore, removed the "#include <PreCompiled.h>" from sources, also
there is no need for the "#ifdef _PreComp_" anymore
2025-09-24 20:08:56 +02:00

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/***************************************************************************
* Copyright (c) 2010 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 <BRepBuilderAPI_Transform.hxx>
# include <BRep_Tool.hxx>
# include <gp_Ax2.hxx>
# include <gp_Circ.hxx>
# include <gp_Dir.hxx>
# include <gp_Pnt.hxx>
# include <gp_Trsf.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <BRepAdaptor_Surface.hxx>
# include <gp_Pln.hxx>
# include <Geom_Plane.hxx>
# include <TopoDS.hxx>
# include <TopoDS_Face.hxx>
# include <TopExp_Explorer.hxx>
#include <Mod/Part/App/PrimitiveFeature.h>
#include <App/Link.h>
#include <App/Datums.h>
#include "FeatureMirroring.h"
#include "DatumFeature.h"
using namespace Part;
PROPERTY_SOURCE(Part::Mirroring, Part::Feature)
Mirroring::Mirroring()
{
ADD_PROPERTY(Source,(nullptr));
ADD_PROPERTY_TYPE(Base,(Base::Vector3d()),"Plane",App::Prop_None,"The base point of the plane");
ADD_PROPERTY_TYPE(Normal,(Base::Vector3d(0,0,1)),"Plane",App::Prop_None,"The normal of the plane");
ADD_PROPERTY_TYPE(MirrorPlane,(nullptr),"Plane",App::Prop_None,"A reference for the mirroring plane, overrides Base and Normal if set, can be face or circle");
}
short Mirroring::mustExecute() const
{
if (Source.isTouched())
return 1;
if (Base.isTouched())
return 1;
if (Normal.isTouched())
return 1;
if (MirrorPlane.isTouched())
return 1;
return 0;
}
void Mirroring::onChanged(const App::Property* prop)
{
/**
In the case the user has a reference plane object, then
Base and Normal are computed based on that object. We must
handle this by setting the changes to Base and Normal to not
trigger a recompute when they are computed and changed. We
should also set Base and Normal to readonly so not to confuse
the user, who might try to change them despite having a reference
object. We could also hide them, but they contain useful information.
*/
if (!isRestoring()) {
bool needsRecompute = false;
App::DocumentObject* refObject = MirrorPlane.getValue();
if (!refObject){
Base.setStatus(App::Property::ReadOnly, false);
Normal.setStatus(App::Property::ReadOnly, false);
if (prop == &Base || prop == &Normal) {
needsRecompute = true;
}
} else {
if (prop == &MirrorPlane){
Base.setStatus(App::Property::ReadOnly, true);
Normal.setStatus(App::Property::ReadOnly, true);
needsRecompute = true;
}
}
if (needsRecompute){
try {
App::DocumentObjectExecReturn *ret = recompute();
delete ret;
}
catch (...) {
}
}
}
Part::Feature::onChanged(prop);
}
void Mirroring::handleChangedPropertyType(Base::XMLReader &reader, const char *TypeName, App::Property *prop)
{
if (prop == &Base && strcmp(TypeName, "App::PropertyVector") == 0) {
App::PropertyVector v;
v.Restore(reader);
Base.setValue(v.getValue());
}
else if (prop == &Normal && strcmp(TypeName, "App::PropertyVector") == 0) {
App::PropertyVector v;
v.Restore(reader);
Normal.setValue(v.getValue());
}
else {
Part::Feature::handleChangedPropertyType(reader, TypeName, prop);
}
}
App::DocumentObjectExecReturn *Mirroring::execute()
{
App::DocumentObject* link = Source.getValue();
if (!link)
return new App::DocumentObjectExecReturn("No object linked");
App::DocumentObject* refObject = MirrorPlane.getValue();
std::vector<std::string> subStrings = MirrorPlane.getSubValues();
gp_Pnt axbase;
gp_Dir axdir;
/**
Support mirror plane reference objects:
DatumPlanes, Part::Planes, Origin planes, Faces, Circles
Can also be App::Links to such objects
*/
if (refObject){
if (refObject->isDerivedFrom<Part::Plane>() || refObject->isDerivedFrom<App::Plane>() || (strstr(refObject->getNameInDocument(), "Plane")
&& refObject->isDerivedFrom<Part::Datum>())) {
Part::Feature* plane = static_cast<Part::Feature*>(refObject);
Base::Vector3d base = plane->Placement.getValue().getPosition();
axbase = gp_Pnt(base.x, base.y, base.z);
Base::Rotation rot = plane->Placement.getValue().getRotation();
Base::Vector3d dir;
rot.multVec(Base::Vector3d(0,0,1), dir);
axdir = gp_Dir(dir.x, dir.y, dir.z);
// reference is an app::link or a part::feature or some subobject
} else if (refObject->isDerivedFrom<Part::Feature>() || refObject->isDerivedFrom<App::Link>()) {
if (subStrings.size() > 1){
throw Base::ValueError(std::string(this->getFullLabel()) + ": Only 1 subobject is supported for Mirror Plane reference, either a plane face or a circle edge.");
}
auto linked = MirrorPlane.getValue();
bool isFace = false; //will be true if user selected face subobject or if object only has 1 face
bool isEdge = false; //will be true if user selected edge subobject or if object only has 1 edge
TopoDS_Shape shape;
if (!subStrings.empty() && subStrings[0].length() > 0){
shape = Feature::getTopoShape(linked,
ShapeOption::NeedSubElement
| ShapeOption::ResolveLink
| ShapeOption::Transform,
subStrings[0].c_str()).getShape();
if (strstr(subStrings[0].c_str(), "Face")){
isFace = true; //was face subobject, e.g. Face3
} else {
if (strstr(subStrings[0].c_str(), "Edge")){
isEdge = true; //was edge subobject, e.g. Edge7
}
}
} else {
//no subobjects were selected, so this is entire shape of feature
shape = Feature::getShape(linked, ShapeOption::ResolveLink | ShapeOption::Transform);
}
// if there is only 1 face or 1 edge, then we don't need to force the user to select that face or edge
// instead we can infer what was intended
int faceCount = Part::TopoShape(shape).countSubShapes(TopAbs_FACE);
int edgeCount = Part::TopoShape(shape).countSubShapes(TopAbs_EDGE);
TopoDS_Face face;
TopoDS_Edge edge;
if (isFace) { //user selected a face, so use shape to get the TopoDS::Face
face = TopoDS::Face(shape);
} else {
if (faceCount == 1) { //entire feature selected, but it only has 1 face, so get that face
TopoDS_Shape tdface = Part::TopoShape(shape).getSubShape(std::string("Face1").c_str());
face = TopoDS::Face(tdface);
isFace = true;
}
}
if (!isFace && isEdge){ //don't bother with edge if we already have a face to work with
edge = TopoDS::Edge(shape); //isEdge means an edge was selected
} else {
if (edgeCount == 1){ //we don't have a face yet and there were no edges in the subobject selection
//but since this object only has 1 edge, we use it
TopoDS_Shape tdedge = Part::TopoShape(shape).getSubShape(std::string("Edge1").c_str());
edge = TopoDS::Edge(tdedge);
isEdge = true;
}
}
if (isFace && face.IsNull()) { //ensure we have a good face to work with
throw Base::ValueError(std::string(this->getFullLabel()) + ": Failed to extract mirror plane because face is null");
}
if (isEdge && edge.IsNull()){ //ensure we have a good edge to work with
throw Base::ValueError(std::string(this->getFullLabel()) + ": Failed to extract mirror plane because edge is null");
}
if (!isFace && !isEdge){
throw Base::ValueError(std::string(this->getFullLabel()) + ": Failed to extract mirror plane, unable to determine which face or edge to use.");
}
if (isFace) {
BRepAdaptor_Surface adapt(face);
if (adapt.GetType() != GeomAbs_Plane)
throw Base::TypeError(std::string(this->getFullLabel()) + ": Mirror plane face must be planar");
TopExp_Explorer exp;
exp.Init(face, TopAbs_VERTEX);
if (exp.More()) {
axbase = BRep_Tool::Pnt(TopoDS::Vertex(exp.Current()));
}
axdir = adapt.Plane().Axis().Direction();
} else {
if (isEdge){
BRepAdaptor_Curve curve(edge);
if (!(curve.GetType() == GeomAbs_Circle)) {
throw Base::TypeError(std::string(this->getFullLabel()) + ": Only circle edge types are supported");
}
gp_Circ circle = curve.Circle();
axdir = circle.Axis().Direction();
axbase = circle.Location();
}
}
} else {
throw Base::ValueError(std::string(this->getFullLabel()) + ": Mirror plane reference must be a face of a feature or a plane object or a circle");
}
Base.setValue(axbase.X(), axbase.Y(), axbase.Z());
Normal.setValue(axdir.X(), axdir.Y(), axdir.Z());
}
Base::Vector3d base = Base.getValue();
Base::Vector3d norm = Normal.getValue();
try {
gp_Ax2 ax2(gp_Pnt(base.x,base.y,base.z), gp_Dir(norm.x,norm.y,norm.z));
auto shape = Feature::getTopoShape(link, ShapeOption::ResolveLink | ShapeOption::Transform);
if (shape.isNull())
Standard_Failure::Raise("Cannot mirror empty shape");
this->Shape.setValue(TopoShape(0).makeElementMirror(shape,ax2));
copyMaterial(link);
return Part::Feature::execute();
}
catch (Standard_Failure& e) {
return new App::DocumentObjectExecReturn(e.GetMessageString());
}
}
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