405 lines
19 KiB
C++
405 lines
19 KiB
C++
/******************************************************************************
|
|
* Copyright (c)2012 Jan Rheinlaender <jrheinlaender@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 "PreCompiled.h"
|
|
#ifndef _PreComp_
|
|
# include <BRepBuilderAPI_Transform.hxx>
|
|
# include <BRepAlgoAPI_Fuse.hxx>
|
|
# include <BRepAlgoAPI_Cut.hxx>
|
|
# include <BRep_Builder.hxx>
|
|
# include <TopExp.hxx>
|
|
# include <TopExp_Explorer.hxx>
|
|
# include <TopTools_IndexedMapOfShape.hxx>
|
|
# include <Precision.hxx>
|
|
# include <BRepBuilderAPI_Copy.hxx>
|
|
#endif
|
|
|
|
|
|
#include "FeatureTransformed.h"
|
|
#include "FeatureMultiTransform.h"
|
|
#include "FeatureAdditive.h"
|
|
#include "FeatureSubtractive.h"
|
|
#include "FeatureMirrored.h"
|
|
#include "FeatureLinearPattern.h"
|
|
#include "FeaturePolarPattern.h"
|
|
|
|
#include <Base/Console.h>
|
|
#include <Base/Exception.h>
|
|
#include <Base/Parameter.h>
|
|
#include <Base/Reader.h>
|
|
#include <App/Application.h>
|
|
#include <Mod/Part/App/modelRefine.h>
|
|
|
|
using namespace PartDesign;
|
|
|
|
namespace PartDesign {
|
|
|
|
PROPERTY_SOURCE(PartDesign::Transformed, PartDesign::Feature)
|
|
|
|
Transformed::Transformed()
|
|
{
|
|
ADD_PROPERTY(Originals,(0));
|
|
Originals.setSize(0);
|
|
Placement.setStatus(App::Property::ReadOnly, true);
|
|
}
|
|
|
|
void Transformed::positionBySupport(void)
|
|
{
|
|
Part::Feature *support = static_cast<Part::Feature*>(getSupportObject());
|
|
if ((support != NULL) && support->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
|
|
this->Placement.setValue(support->Placement.getValue());
|
|
}
|
|
|
|
App::DocumentObject* Transformed::getSupportObject() const
|
|
{
|
|
if (BaseFeature.getValue() != NULL)
|
|
return BaseFeature.getValue();
|
|
else {
|
|
if (!Originals.getValues().empty())
|
|
return Originals.getValues().front(); // For legacy features
|
|
else
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
App::DocumentObject* Transformed::getSketchObject() const
|
|
{
|
|
std::vector<DocumentObject*> originals = Originals.getValues();
|
|
if (!originals.empty() && originals.front()->getTypeId().isDerivedFrom(PartDesign::SketchBased::getClassTypeId())) {
|
|
return (static_cast<PartDesign::SketchBased*>(originals.front()))->getVerifiedSketch();
|
|
}
|
|
else if (this->getTypeId().isDerivedFrom(LinearPattern::getClassTypeId())) {
|
|
// if Originals is empty then try the linear pattern's Direction property
|
|
const LinearPattern* pattern = static_cast<const LinearPattern*>(this);
|
|
return pattern->Direction.getValue();
|
|
}
|
|
else if (this->getTypeId().isDerivedFrom(PolarPattern::getClassTypeId())) {
|
|
// if Originals is empty then try the polar pattern's Axis property
|
|
const PolarPattern* pattern = static_cast<const PolarPattern*>(this);
|
|
return pattern->Axis.getValue();
|
|
}
|
|
else if (this->getTypeId().isDerivedFrom(Mirrored::getClassTypeId())) {
|
|
// if Originals is empty then try the mirror pattern's MirrorPlane property
|
|
const Mirrored* pattern = static_cast<const Mirrored*>(this);
|
|
return pattern->MirrorPlane.getValue();
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void Transformed::Restore(Base::XMLReader &reader)
|
|
{
|
|
reader.readElement("Properties");
|
|
int Cnt = reader.getAttributeAsInteger("Count");
|
|
|
|
for (int i=0 ;i<Cnt ;i++) {
|
|
reader.readElement("Property");
|
|
const char* PropName = reader.getAttribute("name");
|
|
const char* TypeName = reader.getAttribute("type");
|
|
App::Property* prop = getPropertyByName(PropName);
|
|
|
|
// The property 'Angle' of PolarPattern has changed from PropertyFloat
|
|
// to PropertyAngle and the property 'Length' has changed to PropertyLength.
|
|
try {
|
|
if (prop && strcmp(prop->getTypeId().getName(), TypeName) == 0) {
|
|
prop->Restore(reader);
|
|
}
|
|
else if (prop) {
|
|
Base::Type inputType = Base::Type::fromName(TypeName);
|
|
if (prop->getTypeId().isDerivedFrom(App::PropertyFloat::getClassTypeId()) &&
|
|
inputType.isDerivedFrom(App::PropertyFloat::getClassTypeId())) {
|
|
// Do not directly call the property's Restore method in case the implmentation
|
|
// has changed. So, create a temporary PropertyFloat object and assign the value.
|
|
App::PropertyFloat floatProp;
|
|
floatProp.Restore(reader);
|
|
static_cast<App::PropertyFloat*>(prop)->setValue(floatProp.getValue());
|
|
}
|
|
}
|
|
}
|
|
catch (const Base::XMLParseException&) {
|
|
throw; // re-throw
|
|
}
|
|
catch (const Base::Exception &e) {
|
|
Base::Console().Error("%s\n", e.what());
|
|
}
|
|
catch (const std::exception &e) {
|
|
Base::Console().Error("%s\n", e.what());
|
|
}
|
|
catch (const char* e) {
|
|
Base::Console().Error("%s\n", e);
|
|
}
|
|
#ifndef FC_DEBUG
|
|
catch (...) {
|
|
Base::Console().Error("Primitive::Restore: Unknown C++ exception thrown");
|
|
}
|
|
#endif
|
|
|
|
reader.readEndElement("Property");
|
|
}
|
|
reader.readEndElement("Properties");
|
|
}
|
|
|
|
short Transformed::mustExecute() const
|
|
{
|
|
if (Originals.isTouched())
|
|
return 1;
|
|
return PartDesign::Feature::mustExecute();
|
|
}
|
|
|
|
App::DocumentObjectExecReturn *Transformed::execute(void)
|
|
{
|
|
rejected.clear();
|
|
|
|
std::vector<App::DocumentObject*> originals = Originals.getValues();
|
|
if (originals.empty()) // typically InsideMultiTransform
|
|
return App::DocumentObject::StdReturn;
|
|
|
|
this->positionBySupport();
|
|
|
|
// get transformations from subclass by calling virtual method
|
|
std::vector<gp_Trsf> transformations;
|
|
try {
|
|
std::list<gp_Trsf> t_list = getTransformations(originals);
|
|
transformations.insert(transformations.end(), t_list.begin(), t_list.end());
|
|
} catch (Base::Exception& e) {
|
|
return new App::DocumentObjectExecReturn(e.what());
|
|
}
|
|
|
|
if (transformations.empty())
|
|
return App::DocumentObject::StdReturn; // No transformations defined, exit silently
|
|
|
|
// Get the support
|
|
Part::Feature* supportFeature = static_cast<Part::Feature*>(getSupportObject());
|
|
if (supportFeature == NULL)
|
|
return new App::DocumentObjectExecReturn("No support for transformation feature");
|
|
const Part::TopoShape& supportTopShape = supportFeature->Shape.getShape();
|
|
if (supportTopShape._Shape.IsNull())
|
|
return new App::DocumentObjectExecReturn("Cannot transform invalid support shape");
|
|
|
|
// create an untransformed copy of the support shape
|
|
Part::TopoShape supportShape(supportTopShape);
|
|
supportShape.setTransform(Base::Matrix4D());
|
|
TopoDS_Shape support = supportShape._Shape;
|
|
|
|
typedef std::set<std::vector<gp_Trsf>::const_iterator> trsf_it;
|
|
typedef std::map<App::DocumentObject*, trsf_it> rej_it_map;
|
|
rej_it_map nointersect_trsfms;
|
|
rej_it_map overlapping_trsfms;
|
|
|
|
// NOTE: It would be possible to build a compound from all original addShapes/subShapes and then
|
|
// transform the compounds as a whole. But we choose to apply the transformations to each
|
|
// Original separately. This way it is easier to discover what feature causes a fuse/cut
|
|
// to fail. The downside is that performance suffers when there are many originals. But it seems
|
|
// safe to assume that in most cases there are few originals and many transformations
|
|
for (std::vector<App::DocumentObject*>::const_iterator o = originals.begin(); o != originals.end(); ++o)
|
|
{
|
|
// Extract the original shape and determine whether to cut or to fuse
|
|
TopoDS_Shape shape;
|
|
bool fuse;
|
|
|
|
if ((*o)->getTypeId().isDerivedFrom(PartDesign::Additive::getClassTypeId())) {
|
|
PartDesign::Additive* addFeature = static_cast<PartDesign::Additive*>(*o);
|
|
shape = addFeature->AddShape.getShape()._Shape;
|
|
if (shape.IsNull())
|
|
return new App::DocumentObjectExecReturn("Shape of additive feature is empty");
|
|
fuse = true;
|
|
} else if ((*o)->getTypeId().isDerivedFrom(PartDesign::Subtractive::getClassTypeId())) {
|
|
PartDesign::Subtractive* subFeature = static_cast<PartDesign::Subtractive*>(*o);
|
|
shape = subFeature->SubShape.getShape()._Shape;
|
|
if (shape.IsNull())
|
|
return new App::DocumentObjectExecReturn("Shape of subtractive feature is empty");
|
|
fuse = false;
|
|
} else {
|
|
return new App::DocumentObjectExecReturn("Only additive and subtractive features can be transformed");
|
|
}
|
|
|
|
// Transform the add/subshape and collect the resulting shapes for overlap testing
|
|
typedef std::vector<std::vector<gp_Trsf>::const_iterator> trsf_it_vec;
|
|
trsf_it_vec v_transformations;
|
|
std::vector<TopoDS_Shape> v_transformedShapes;
|
|
|
|
std::vector<gp_Trsf>::const_iterator t = transformations.begin();
|
|
++t; // Skip first transformation, which is always the identity transformation
|
|
for (; t != transformations.end(); ++t) {
|
|
// Make an explicit copy of the shape because the "true" parameter to BRepBuilderAPI_Transform
|
|
// seems to be pretty broken
|
|
BRepBuilderAPI_Copy copy(shape);
|
|
shape = copy.Shape();
|
|
if (shape.IsNull())
|
|
return new App::DocumentObjectExecReturn("Transformed: Linked shape object is empty");
|
|
|
|
BRepBuilderAPI_Transform mkTrf(shape, *t, false); // No need to copy, now
|
|
if (!mkTrf.IsDone())
|
|
return new App::DocumentObjectExecReturn("Transformation failed", (*o));
|
|
|
|
// Check for intersection with support
|
|
try {
|
|
if (!Part::checkIntersection(support, mkTrf.Shape(), false, true)) {
|
|
#ifdef FC_DEBUG // do not write this in release mode because a message appears already in the task view
|
|
Base::Console().Warning("Transformed shape does not intersect support %s: Removed\n", (*o)->getNameInDocument());
|
|
#endif
|
|
nointersect_trsfms[*o].insert(t);
|
|
} else {
|
|
v_transformations.push_back(t);
|
|
v_transformedShapes.push_back(mkTrf.Shape());
|
|
// Note: Transformations that do not intersect the support are ignored in the overlap tests
|
|
}
|
|
} catch (Standard_Failure) {
|
|
// Note: Ignoring this failure is probably pointless because if the intersection check fails, the later
|
|
// fuse operation of the transformation result will also fail
|
|
Handle_Standard_Failure e = Standard_Failure::Caught();
|
|
std::string msg("Transformation: Intersection check failed");
|
|
if (e->GetMessageString() != NULL)
|
|
msg += std::string(": '") + e->GetMessageString() + "'";
|
|
return new App::DocumentObjectExecReturn(msg.c_str());
|
|
}
|
|
}
|
|
|
|
if (v_transformedShapes.empty())
|
|
continue; // Skip the overlap check and go on to next original
|
|
|
|
// Check for overlapping of the original and the transformed shapes, and remove the overlapping transformations
|
|
if (this->getTypeId() != PartDesign::MultiTransform::getClassTypeId()) {
|
|
// If there is only one transformed feature, we allow an overlap (though it might seem
|
|
// illogical to the user why we allow overlapping shapes in this case!)
|
|
if (v_transformedShapes.size() > 1)
|
|
if (Part::checkIntersection(shape, v_transformedShapes.front(), false, false)) {
|
|
// For single transformations, if one overlaps, all overlap, as long as we have uniform increments
|
|
for (trsf_it_vec::const_iterator v = v_transformations.begin(); v != v_transformations.end(); v++)
|
|
overlapping_trsfms[*o].insert(*v);
|
|
v_transformedShapes.clear();
|
|
}
|
|
} else {
|
|
// For MultiTransform, just checking the first transformed shape is not sufficient - any two
|
|
// features might overlap, even if the original and the first shape don't overlap!
|
|
typedef std::set<std::vector<TopoDS_Shape>::iterator> shape_it_set;
|
|
shape_it_set rejected_iterators;
|
|
|
|
std::vector<TopoDS_Shape>::iterator s1 = v_transformedShapes.begin();
|
|
std::vector<TopoDS_Shape>::iterator s2 = s1;
|
|
++s2;
|
|
trsf_it_vec::const_iterator t1 = v_transformations.begin();
|
|
trsf_it_vec::const_iterator t2 = t1;
|
|
++t2;
|
|
for (; s2 != v_transformedShapes.end();) {
|
|
// Check intersection with the original
|
|
if (Part::checkIntersection(shape, *s1, false, false)) {
|
|
rejected_iterators.insert(s1);
|
|
overlapping_trsfms[*o].insert(*t1);
|
|
}
|
|
// Check intersection with other transformations
|
|
for (; s2 != v_transformedShapes.end(); ++s2, ++t2)
|
|
if (Part::checkIntersection(*s1, *s2, false, false)) {
|
|
rejected_iterators.insert(s1);
|
|
rejected_iterators.insert(s2);
|
|
overlapping_trsfms[*o].insert(*t1);
|
|
overlapping_trsfms[*o].insert(*t2);
|
|
}
|
|
++s1;
|
|
s2 = s1;
|
|
++s2;
|
|
++t1;
|
|
t2 = t1;
|
|
++t2;
|
|
}
|
|
// Check intersection of last transformation with the original
|
|
if (Part::checkIntersection(shape, *s1, false, false)) {
|
|
rejected_iterators.insert(s1);
|
|
overlapping_trsfms[*o].insert(*t1);
|
|
}
|
|
|
|
for (shape_it_set::reverse_iterator it = rejected_iterators.rbegin();
|
|
it != rejected_iterators.rend(); ++it)
|
|
v_transformedShapes.erase(*it);
|
|
}
|
|
|
|
if (v_transformedShapes.empty())
|
|
continue; // Skip the boolean operation and go on to next original
|
|
|
|
// Build a compound from all the valid transformations
|
|
BRep_Builder builder;
|
|
TopoDS_Compound transformedShapes;
|
|
builder.MakeCompound(transformedShapes);
|
|
for (std::vector<TopoDS_Shape>::const_iterator s = v_transformedShapes.begin(); s != v_transformedShapes.end(); ++s)
|
|
builder.Add(transformedShapes, *s);
|
|
|
|
// Fuse/Cut the compounded transformed shapes with the support
|
|
TopoDS_Shape result;
|
|
|
|
if (fuse) {
|
|
BRepAlgoAPI_Fuse mkFuse(support, transformedShapes);
|
|
if (!mkFuse.IsDone())
|
|
return new App::DocumentObjectExecReturn("Fusion with support failed", *o);
|
|
// we have to get the solids (fuse sometimes creates compounds)
|
|
result = this->getSolid(mkFuse.Shape());
|
|
// lets check if the result is a solid
|
|
if (result.IsNull())
|
|
return new App::DocumentObjectExecReturn("Resulting shape is not a solid", *o);
|
|
result = refineShapeIfActive(result);
|
|
} else {
|
|
BRepAlgoAPI_Cut mkCut(support, transformedShapes);
|
|
if (!mkCut.IsDone())
|
|
return new App::DocumentObjectExecReturn("Cut out of support failed", *o);
|
|
result = mkCut.Shape();
|
|
result = refineShapeIfActive(result);
|
|
}
|
|
|
|
support = result; // Use result of this operation for fuse/cut of next original
|
|
}
|
|
|
|
if (!overlapping_trsfms.empty())
|
|
// Concentrate on overlapping shapes since they are more serious
|
|
for (rej_it_map::const_iterator it = overlapping_trsfms.begin(); it != overlapping_trsfms.end(); ++it)
|
|
for (trsf_it::const_iterator it2 = it->second.begin(); it2 != it->second.end(); ++it2)
|
|
rejected[it->first].push_back(**it2);
|
|
else
|
|
for (rej_it_map::const_iterator it = nointersect_trsfms.begin(); it != nointersect_trsfms.end(); ++it)
|
|
for (trsf_it::const_iterator it2 = it->second.begin(); it2 != it->second.end(); ++it2)
|
|
rejected[it->first].push_back(**it2);
|
|
|
|
this->Shape.setValue(support);
|
|
if (!overlapping_trsfms.empty())
|
|
return new App::DocumentObjectExecReturn("Transformed objects are overlapping, try using a higher length or reducing the number of occurrences");
|
|
// Note: This limitation could be overcome by fusing the transformed features instead of
|
|
// compounding them, probably at the expense of quite a bit of performance and complexity
|
|
// in this code
|
|
else
|
|
return App::DocumentObject::StdReturn;
|
|
}
|
|
|
|
TopoDS_Shape Transformed::refineShapeIfActive(const TopoDS_Shape& oldShape) const
|
|
{
|
|
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
|
|
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/PartDesign");
|
|
if (hGrp->GetBool("RefineModel", false)) {
|
|
Part::BRepBuilderAPI_RefineModel mkRefine(oldShape);
|
|
TopoDS_Shape resShape = mkRefine.Shape();
|
|
return resShape;
|
|
}
|
|
|
|
return oldShape;
|
|
}
|
|
|
|
}
|