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PartDesign: implement Transform and Pattern features

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jrheinlaender
2012-09-07 11:55:26 +02:00
committed by logari81
parent b9358f2179
commit 023c7fa0b1
59 changed files with 12916 additions and 576 deletions
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159
src/Mod/PartDesign/App/FeaturePolarPattern.cpp Normal file
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/******************************************************************************
* 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 <TopoDS.hxx>
# include <TopoDS_Face.hxx>
# include <gp_Lin.hxx>
# include <gp_Ax2.hxx>
# include <BRepAdaptor_Curve.hxx>
#endif
#include "FeaturePolarPattern.h"
#include <Base/Tools.h>
#include <Base/Axis.h>
#include <Mod/Part/App/TopoShape.h>
using namespace PartDesign;
namespace PartDesign {
PROPERTY_SOURCE(PartDesign::PolarPattern, PartDesign::Transformed)
PolarPattern::PolarPattern()
{
ADD_PROPERTY_TYPE(Axis,(0),"PolarPattern",(App::PropertyType)(App::Prop_None),"Direction");
ADD_PROPERTY(StdAxis,(""));
ADD_PROPERTY(Reversed,(0));
ADD_PROPERTY(Angle,(360.0));
ADD_PROPERTY(Occurrences,(3));
}
short PolarPattern::mustExecute() const
{
if (Axis.isTouched() ||
StdAxis.isTouched() ||
Reversed.isTouched() ||
Angle.isTouched() ||
Occurrences.isTouched())
return 1;
return Transformed::mustExecute();
}
const std::list<gp_Trsf> PolarPattern::getTransformations(const std::vector<App::DocumentObject*>)
{
std::string stdAxis = StdAxis.getValue();
float angle = Angle.getValue();
if (angle < Precision::Confusion())
throw Base::Exception("Pattern angle too small");
int occurrences = Occurrences.getValue();
if (occurrences < 2)
throw Base::Exception("At least two occurrences required");
bool reversed = Reversed.getValue();
double offset;
if (std::abs(angle - 360.0) < Precision::Confusion())
offset = Base::toRadians<double>(angle) / occurrences; // Because e.g. two occurrences in 360 degrees need to be 180 degrees apart
else
offset = Base::toRadians<double>(angle) / (occurrences - 1);
gp_Pnt axbase;
gp_Dir axdir;
if (!stdAxis.empty()) {
axbase = gp_Pnt(0,0,0);
if (stdAxis == "X") {
axdir = gp_Dir(1,0,0);
//ax = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(1,0,0));
} else if (stdAxis == "Y") {
axdir = gp_Dir(0,1,0);
//ax = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(0,1,0));
} else if(stdAxis == "Z") {
axdir = gp_Dir(0,0,1);
//ax = Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(0,0,1));
} else {
throw Base::Exception("Invalid axis (must be X, Y or Z)");
}
} else {
App::DocumentObject* refObject = Axis.getValue();
if (refObject == NULL)
throw Base::Exception("No axis specified");
if (!refObject->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
throw Base::Exception("Axis reference must be edge of a feature");
std::vector<std::string> subStrings = Axis.getSubValues();
if (subStrings.empty() || subStrings[0].empty())
throw Base::Exception("No axis reference specified");
Part::Feature* refFeature = static_cast<Part::Feature*>(refObject);
Part::TopoShape refShape = refFeature->Shape.getShape();
TopoDS_Shape ref = refShape.getSubShape(subStrings[0].c_str());
if (ref.ShapeType() == TopAbs_EDGE) {
TopoDS_Edge refEdge = TopoDS::Edge(ref);
if (refEdge.IsNull())
throw Base::Exception("Failed to extract axis edge");
BRepAdaptor_Curve adapt(refEdge);
if (adapt.GetType() != GeomAbs_Line)
throw Base::Exception("Axis edge must be a straight line");
axbase = adapt.Value(adapt.FirstParameter());
axdir = adapt.Line().Direction();
} else {
throw Base::Exception("Axis reference must be an edge");
}
TopLoc_Location invObjLoc = this->getLocation().Inverted();
axbase.Transform(invObjLoc.Transformation());
axdir.Transform(invObjLoc.Transformation());
}
// get the support placement
// TODO: Check for NULL pointer
/*Part::Feature* supportFeature = static_cast<Part::Feature*>(originals.front());
if (supportFeature == NULL)
throw Base::Exception("Cannot work on invalid support shape");
Base::Placement supportPlacement = supportFeature->Placement.getValue();
ax *= supportPlacement;
gp_Ax2 axis(gp_Pnt(ax.getBase().x, ax.getBase().y, ax.getBase().z), gp_Dir(ax.getDirection().x, ax.getDirection().y, ax.getDirection().z));*/
gp_Ax2 axis(axbase, axdir);
if (reversed)
axis.SetDirection(axis.Direction().Reversed());
// Note: The original feature is NOT included in the list of transformations! Therefore
// we start with occurrence number 1, not number 0
std::list<gp_Trsf> transformations;
gp_Trsf trans;
transformations.push_back(trans); // identity transformation
for (int i = 1; i < occurrences; i++) {
trans.SetRotation(axis.Axis(), i * offset);
transformations.push_back(trans);
}
return transformations;
}
}