161 lines
5.6 KiB
C++
161 lines
5.6 KiB
C++
/***************************************************************************
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* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2002 *
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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 PART_FEATURE_H
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#define PART_FEATURE_H
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#include "TopoShape.h"
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#include "PropertyTopoShape.h"
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#include <App/GeoFeature.h>
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#include <App/FeaturePython.h>
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#include <App/PropertyGeo.h>
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// includes for findAllFacesCutBy()
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#include <TopoDS_Face.hxx>
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class gp_Dir;
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class BRepBuilderAPI_MakeShape;
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// includes for findAllFacesCutBy()
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#include <TopoDS_Face.hxx>
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class gp_Dir;
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namespace Part
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{
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class PartFeaturePy;
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/** Base class of all shape feature classes in FreeCAD
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*/
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class PartExport Feature : public App::GeoFeature
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{
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PROPERTY_HEADER(Part::Feature);
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public:
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/// Constructor
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Feature(void);
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virtual ~Feature();
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PropertyPartShape Shape;
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/** @name methods override feature */
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//@{
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/// recalculate the feature
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/// recompute only this object
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virtual App::DocumentObjectExecReturn *recompute(void);
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virtual App::DocumentObjectExecReturn *execute(void);
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virtual short mustExecute(void) const;
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//@}
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/// returns the type name of the ViewProvider
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virtual const char* getViewProviderName(void) const;
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virtual PyObject* getPyObject(void);
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virtual std::vector<PyObject *> getPySubObjects(const std::vector<std::string>&) const;
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/**
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* Find the origin of a reference, e.g. the vertex or edge in a sketch that
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* produced a face
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*/
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const TopoDS_Shape findOriginOf(const TopoDS_Shape& reference);
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protected:
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void onChanged(const App::Property* prop);
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TopLoc_Location getLocation() const;
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/**
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* Build a history of changes
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* MakeShape: The operation that created the changes, e.g. BRepAlgoAPI_Common
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* type: The type of object we are interested in, e.g. TopAbs_FACE
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* newS: The new shape that was created by the operation
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* oldS: The original shape prior to the operation
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*/
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ShapeHistory buildHistory(BRepBuilderAPI_MakeShape&, TopAbs_ShapeEnum type,
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const TopoDS_Shape& newS, const TopoDS_Shape& oldS);
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ShapeHistory joinHistory(const ShapeHistory&, const ShapeHistory&);
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};
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class FilletBase : public Part::Feature
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{
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PROPERTY_HEADER(Part::FilletBase);
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public:
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FilletBase();
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App::PropertyLink Base;
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PropertyFilletEdges Edges;
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short mustExecute() const;
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};
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typedef App::FeaturePythonT<Feature> FeaturePython;
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/** Base class of all shape feature classes in FreeCAD
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*/
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class PartExport FeatureExt : public Feature
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{
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PROPERTY_HEADER(Part::FeatureExt);
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public:
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const char* getViewProviderName(void) const {
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return "PartGui::ViewProviderPartExt";
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}
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};
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// Utility methods
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/**
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* Find all faces cut by a line through the centre of gravity of a given face
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* Useful for the "up to face" options to pocket or pad
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*/
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struct cutFaces {
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TopoDS_Face face;
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double distsq;
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};
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PartExport
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std::vector<cutFaces> findAllFacesCutBy(const TopoDS_Shape& shape,
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const TopoDS_Shape& face, const gp_Dir& dir);
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/**
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* Check for intersection between the two shapes. Only solids are guaranteed to work properly
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* There are two modes:
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* 1. Bounding box check only - quick but inaccurate
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* 2. Bounding box check plus (if necessary) boolean operation - costly but accurate
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* Return true if the shapes intersect, false if they don't
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* The flag touch_is_intersection decides whether shapes touching at distance zero are regarded
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* as intersecting or not
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* 1. If set to true, a true check result means that a boolean fuse operation between the two shapes
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* will return a single solid
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* 2. If set to false, a true check result means that a boolean common operation will return a
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* valid solid
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* If there is any error in the boolean operations, the check always returns false
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*/
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PartExport
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const bool checkIntersection(const TopoDS_Shape& first, const TopoDS_Shape& second,
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const bool quick, const bool touch_is_intersection);
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} //namespace Part
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#endif // PART_FEATURE_H
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