d0d4d6bc07
AttachableObjects are desired in multiple occasions, and the current AttachableObject is not flexible enough to handle all cases. Hence the code is portet to an extension, which gives the needed flexibility.
292 lines
11 KiB
C++
292 lines
11 KiB
C++
/***************************************************************************
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* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2008 *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <TopoDS_Shape.hxx>
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# include <TopoDS_Face.hxx>
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# include <TopoDS.hxx>
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# include <gp_Pln.hxx>
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# include <gp_Ax1.hxx>
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# include <gp_Pnt.hxx>
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# include <gp_Dir.hxx>
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# include <GeomAPI_ProjectPointOnSurf.hxx>
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# include <Geom_Plane.hxx>
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# include <Geom2d_Curve.hxx>
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# include <Geom2dAPI_InterCurveCurve.hxx>
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# include <Geom2dAPI_ProjectPointOnCurve.hxx>
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# include <GeomAPI.hxx>
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# include <BRepAdaptor_Surface.hxx>
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#endif
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#include <Base/Console.h>
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#include <Base/Exception.h>
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#include <Base/Reader.h>
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#include <App/Property.h>
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#include <App/PropertyLinks.h>
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#include "Part2DObject.h"
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#include "Geometry.h"
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#include "DatumFeature.h"
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#include <App/FeaturePythonPyImp.h>
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#include <Mod/Part/App/Part2DObjectPy.h>
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using namespace Part;
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const int Part2DObject::H_Axis = -1;
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const int Part2DObject::V_Axis = -2;
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const int Part2DObject::N_Axis = -3;
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PROPERTY_SOURCE_WITH_EXTENSIONS(Part::Part2DObject, Part::Feature)
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Part2DObject::Part2DObject()
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{
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AttachExtension::initExtension(this);
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this->setAttacher(new Attacher::AttachEnginePlane);
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}
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App::DocumentObjectExecReturn *Part2DObject::execute(void)
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{
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return Feature::execute();
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}
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void Part2DObject::transformPlacement(const Base::Placement &transform)
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{
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if (Support.getValues().size() > 0) {
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//part->transformPlacement(transform);
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positionBySupport();
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} else {
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GeoFeature::transformPlacement(transform);
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}
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}
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int Part2DObject::getAxisCount(void) const
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{
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return 0;
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}
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Base::Axis Part2DObject::getAxis(int axId) const
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{
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if (axId == H_Axis) {
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return Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(1,0,0));
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}
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else if (axId == V_Axis) {
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return Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(0,1,0));
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}
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else if (axId == N_Axis) {
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return Base::Axis(Base::Vector3d(0,0,0), Base::Vector3d(0,0,1));
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}
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return Base::Axis();
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}
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bool Part2DObject::seekTrimPoints(const std::vector<Geometry *> &geomlist,
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int GeoId, const Base::Vector3d &point,
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int &GeoId1, Base::Vector3d &intersect1,
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int &GeoId2, Base::Vector3d &intersect2)
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{
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if (GeoId >= int(geomlist.size()))
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return false;
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gp_Pln plane(gp_Pnt(0,0,0),gp_Dir(0,0,1));
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Standard_Boolean periodic=Standard_False;
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double period = 0;
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Handle_Geom2d_Curve primaryCurve;
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Handle_Geom_Geometry geom = (geomlist[GeoId])->handle();
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Handle_Geom_Curve curve3d = Handle_Geom_Curve::DownCast(geom);
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if (curve3d.IsNull())
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return false;
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else {
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primaryCurve = GeomAPI::To2d(curve3d, plane);
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periodic = primaryCurve->IsPeriodic();
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if (periodic)
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period = primaryCurve->Period();
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}
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// create the intersector and projector functions
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Geom2dAPI_InterCurveCurve Intersector;
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Geom2dAPI_ProjectPointOnCurve Projector;
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// find the parameter of the picked point on the primary curve
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Projector.Init(gp_Pnt2d(point.x, point.y), primaryCurve);
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double pickedParam = Projector.LowerDistanceParameter();
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// find intersection points
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GeoId1 = -1;
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GeoId2 = -1;
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double param1=-1e10,param2=1e10;
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gp_Pnt2d p1,p2;
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Handle_Geom2d_Curve secondaryCurve;
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for (int id=0; id < int(geomlist.size()); id++) {
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// #0000624: Trim tool doesn't work with construction lines
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if (id != GeoId/* && !geomlist[id]->Construction*/) {
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geom = (geomlist[id])->handle();
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curve3d = Handle_Geom_Curve::DownCast(geom);
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if (!curve3d.IsNull()) {
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secondaryCurve = GeomAPI::To2d(curve3d, plane);
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// perform the curves intersection
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Intersector.Init(primaryCurve, secondaryCurve, 1.0e-12);
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for (int i=1; i <= Intersector.NbPoints(); i++) {
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gp_Pnt2d p = Intersector.Point(i);
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// get the parameter of the intersection point on the primary curve
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Projector.Init(p, primaryCurve);
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double param = Projector.LowerDistanceParameter();
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if (periodic) {
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// transfer param into the interval (pickedParam-period pickedParam]
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param = param - period * ceil((param-pickedParam) / period);
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if (param > param1) {
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param1 = param;
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p1 = p;
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GeoId1 = id;
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}
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param -= period; // transfer param into the interval (pickedParam pickedParam+period]
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if (param < param2) {
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param2 = param;
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p2 = p;
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GeoId2 = id;
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}
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}
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else if (param < pickedParam && param > param1) {
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param1 = param;
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p1 = p;
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GeoId1 = id;
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}
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else if (param > pickedParam && param < param2) {
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param2 = param;
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p2 = p;
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GeoId2 = id;
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}
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}
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}
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}
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}
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if (periodic) {
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// in case both points coincide, cancel the selection of one of both
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if (fabs(param2-param1-period) < 1e-10) {
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if (param2 - pickedParam >= pickedParam - param1)
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GeoId2 = -1;
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else
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GeoId1 = -1;
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}
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}
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if (GeoId1 < 0 && GeoId2 < 0)
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return false;
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if (GeoId1 >= 0)
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intersect1 = Base::Vector3d(p1.X(),p1.Y(),0.f);
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if (GeoId2 >= 0)
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intersect2 = Base::Vector3d(p2.X(),p2.Y(),0.f);
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return true;
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}
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void Part2DObject::acceptGeometry()
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{
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// implemented in sub-classes
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}
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void Part2DObject::Restore(Base::XMLReader &reader)
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{
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//override generic restoration to convert Support property from PropertyLinkSub to PropertyLinkSubList
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reader.readElement("Properties");
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int Cnt = reader.getAttributeAsInteger("Count");
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for (int i=0 ;i<Cnt ;i++) {
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reader.readElement("Property");
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const char* PropName = reader.getAttribute("name");
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const char* TypeName = reader.getAttribute("type");
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App::Property* prop = getPropertyByName(PropName);
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// NOTE: We must also check the type of the current property because a
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// subclass of PropertyContainer might change the type of a property but
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// not its name. In this case we would force to read-in a wrong property
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// type and the behaviour would be undefined.
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try {
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if(prop){
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if (strcmp(prop->getTypeId().getName(), TypeName) == 0){
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prop->Restore(reader);
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} else if (prop->isDerivedFrom(App::PropertyLinkSubList::getClassTypeId())){
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//reading legacy Support - when the Support could only be a single flat face.
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App::PropertyLinkSub tmp;
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if (0 == strcmp(tmp.getTypeId().getName(),TypeName)) {
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tmp.setContainer(this);
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tmp.Restore(reader);
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static_cast<App::PropertyLinkSubList*>(prop)->setValue(tmp.getValue(), tmp.getSubValues());
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}
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this->MapMode.setValue(Attacher::mmFlatFace);
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}
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}
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}
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catch (const Base::XMLParseException&) {
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throw; // re-throw
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}
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catch (const Base::Exception &e) {
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Base::Console().Error("%s\n", e.what());
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}
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catch (const std::exception &e) {
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Base::Console().Error("%s\n", e.what());
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}
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catch (const char* e) {
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Base::Console().Error("%s\n", e);
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}
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#ifndef FC_DEBUG
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catch (...) {
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Base::Console().Error("PropertyContainer::Restore: Unknown C++ exception thrown");
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}
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#endif
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reader.readEndElement("Property");
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}
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reader.readEndElement("Properties");
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}
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// Python Drawing feature ---------------------------------------------------------
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namespace App {
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/// @cond DOXERR
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PROPERTY_SOURCE_TEMPLATE(Part::Part2DObjectPython, Part::Part2DObject)
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template<> const char* Part::Part2DObjectPython::getViewProviderName(void) const {
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return "PartGui::ViewProvider2DObjectPython";
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}
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template<> PyObject* Part::Part2DObjectPython::getPyObject(void) {
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if (PythonObject.is(Py::_None())) {
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// ref counter is set to 1
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PythonObject = Py::Object(new FeaturePythonPyT<Part::Part2DObjectPy>(this),true);
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}
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return Py::new_reference_to(PythonObject);
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}
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/// @endcond
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// explicit template instantiation
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template class PartExport FeaturePythonT<Part::Part2DObject>;
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}
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