140 lines
6.1 KiB
C++
140 lines
6.1 KiB
C++
/***************************************************************************
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* Copyright (c) 2010 Juergen Riegel <FreeCAD@juergen-riegel.net> *
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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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#ifndef PARTDESIGN_SketchBased_H
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#define PARTDESIGN_SketchBased_H
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#include <App/PropertyStandard.h>
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#include <Mod/Part/App/Part2DObject.h>
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#include "FeatureAddSub.h"
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class TopoDS_Shape;
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class TopoDS_Face;
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class TopoDS_Wire;
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class gp_Dir;
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class gp_Lin;
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namespace PartDesign
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{
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class PartDesignExport SketchBased : public PartDesign::FeatureAddSub
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{
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PROPERTY_HEADER(PartDesign::SketchBased);
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public:
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SketchBased();
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// Common properties for all sketch based features
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/// Sketch used to create this feature
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App::PropertyLink Sketch;
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/// Reverse extrusion direction
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App::PropertyBool Reversed;
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/// Make extrusion symmetric to sketch plane
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App::PropertyBool Midplane;
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/// Face to extrude up to
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App::PropertyLinkSub UpToFace;
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short mustExecute() const;
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/** calculates and updates the Placement property based on the features
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* this one is made from: either from Base, if there is one, or from sketch,
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* if there is no base.
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*/
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void positionByPrevious(void);
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/** applies a transform on the Placement of the Sketch or its
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* support if it has one
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*/
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virtual void transformPlacement(const Base::Placement &transform);
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/// Verifies the linked Sketch object
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Part::Part2DObject* getVerifiedSketch() const;
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/// Returns the wires the sketch is composed of
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std::vector<TopoDS_Wire> getSketchWires() const;
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/// Returns the face of the sketch support (if any)
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const TopoDS_Face getSupportFace() const;
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/// retrieves the number of axes in the linked sketch (defined as construction lines)
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int getSketchAxisCount(void) const;
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virtual Part::Feature* getBaseObject() const;
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protected:
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void onChanged(const App::Property* prop);
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TopoDS_Face validateFace(const TopoDS_Face&) const;
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TopoDS_Shape makeFace(const std::vector<TopoDS_Wire>&) const;
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TopoDS_Shape makeFace(std::list<TopoDS_Wire>&) const; // for internal use only
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bool isInside(const TopoDS_Wire&, const TopoDS_Wire&) const;
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bool isParallelPlane(const TopoDS_Shape&, const TopoDS_Shape&) const;
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bool isEqualGeometry(const TopoDS_Shape&, const TopoDS_Shape&) const;
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bool isQuasiEqual(const TopoDS_Shape&, const TopoDS_Shape&) const;
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void remapSupportShape(const TopoDS_Shape&);
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TopoDS_Shape refineShapeIfActive(const TopoDS_Shape&) const;
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/// Extract a face from a given LinkSub
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static void getUpToFaceFromLinkSub(TopoDS_Face& upToFace,
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const App::PropertyLinkSub& refFace);
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/// Find a valid face to extrude up to
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static void getUpToFace(TopoDS_Face& upToFace,
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const TopoDS_Shape& support,
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const TopoDS_Face& supportface,
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const TopoDS_Shape& sketchshape,
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const std::string& method,
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const gp_Dir& dir,
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const double offset);
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/**
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* Generate a linear prism
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* It will be a stand-alone solid created with BRepPrimAPI_MakePrism
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*/
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static void generatePrism(TopoDS_Shape& prism,
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const TopoDS_Shape& sketchshape,
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const std::string& method,
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const gp_Dir& direction,
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const double L,
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const double L2,
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const bool midplane,
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const bool reversed);
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/// Check whether the wire after projection on the face is inside the face
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static const bool checkWireInsideFace(const TopoDS_Wire& wire,
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const TopoDS_Face& face,
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const gp_Dir& dir);
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/// Check whether the line crosses the face (line and face must be on the same plane)
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static const bool checkLineCrossesFace(const gp_Lin& line, const TopoDS_Face& face);
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class Wire_Compare;
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/// Used to suggest a value for Reversed flag so that material is always removed (Groove) or added (Revolution) from the support
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const double getReversedAngle(const Base::Vector3d& b, const Base::Vector3d& v);
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/// get Axis from ReferenceAxis
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void getAxis(const App::DocumentObject* pcReferenceAxis, const std::vector<std::string>& subReferenceAxis,
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Base::Vector3d& base, Base::Vector3d& dir);
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};
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} //namespace PartDesign
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#endif // PARTDESIGN_SketchBased_H
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