Add Mod/TechDraw/App
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WandererFan
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src/Mod/TechDraw/App/GeometryObject.h
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163
src/Mod/TechDraw/App/GeometryObject.h
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/***************************************************************************
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* Copyright (c) 2013 Luke Parry <l.parry@warwick.ac.uk> *
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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 _TECHDRAW_GEOMETRYOBJECT_H
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#define _TECHDRAW_GEOMETRYOBJECT_H
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#include <TopoDS_Shape.hxx>
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#include <gp_Pnt.hxx>
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#include <Base/Vector3D.h>
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#include <string>
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#include <vector>
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#include "Geometry.h"
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class HLRBRep_Algo;
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class Handle_HLRBRep_Data;
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class HLRBRep_EdgeData;
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class TopoDS_Wire;
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namespace TechDrawGeometry
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{
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class BaseGeom;
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/** Algo class for projecting shapes and creating SVG output of it
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*/
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class DrawingExport GeometryObject
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{
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public:
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/// Constructor
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GeometryObject();
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virtual ~GeometryObject();
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void clear();
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void setTolerance(double value);
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void setScale(double value);
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//! Returns 2D bounding box
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Base::BoundBox3d calcBoundingBox() const;
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const std::vector<Vertex *> & getVertexGeometry() const { return vertexGeom; };
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const std::vector<BaseGeom *> & getEdgeGeometry() const { return edgeGeom; };
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const std::vector<Face *> & getFaceGeometry() const { return faceGeom; };
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const std::vector<int> & getVertexRefs() const { return vertexReferences; };
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const std::vector<int> & getEdgeRefs() const { return edgeReferences; };
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const std::vector<int> & getFaceRefs() const { return faceReferences; };
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DrawingGeometry::BaseGeom * projectEdge(const TopoDS_Shape &edge,
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const TopoDS_Shape &support,
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const Base::Vector3d &direction,
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const Base::Vector3d &projXAxis) const;
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DrawingGeometry::Vertex * projectVertex(const TopoDS_Shape &vert,
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const TopoDS_Shape &support,
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const Base::Vector3d &direction,
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const Base::Vector3d &projXAxis) const;
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void projectSurfaces(const TopoDS_Shape &face,
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const TopoDS_Shape &support,
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const Base::Vector3d &direction,
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const Base::Vector3d &xaxis,
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std::vector<DrawingGeometry::Face *> &result) const;
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/// Process 3D shape to get 2D geometry
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/*!
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* Applies a projection to the input based on direction and vAxis, then
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* calls extractEdges (which in turn calls extractVerts) and extractFaces
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* to populate vectors used by getVertexRefs(), getEdgeRefs(), and
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* getFaceRefs()
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*/
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void extractGeometry(const TopoDS_Shape &input,const Base::Vector3d &direction, bool extractHidden = false, const Base::Vector3d &vAxis = Base::Vector3d(0.,0.,0.));
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protected:
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bool shouldDraw(const bool inFace, const int typ,HLRBRep_EdgeData& ed);
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bool isSameCurve(const BRepAdaptor_Curve &c1, const BRepAdaptor_Curve &c2) const;
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/// Reimplements HLRBRep Drawing Algorithms to satisfy Drawing Workbench requirements
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void drawFace(const bool visible, const int iface, Handle_HLRBRep_Data & DS, TopoDS_Shape& Result) const;
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/// Add (visible) intervals of ed to Result as Edges
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void drawEdge(HLRBRep_EdgeData& ed, TopoDS_Shape& Result, const bool visible) const;
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/// Helper for calcBoundingBox()
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/*! Note that the name of this function isn't totally accurate due to
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* TechDraw::Bsplines being composed of BezierSegments.
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*/
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Base::BoundBox3d boundingBoxOfBspline(const BSpline *spline) const;
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/// Helper for calcBoundingBox()
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/*!
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* AOE = arc of ellipse. Defaults allow this to be used for regular
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* ellipses as well as arcs.
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*/
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Base::BoundBox3d boundingBoxOfAoe(const Ellipse *aoe, double start = 0,
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double end = 2 * M_PI, bool cw = false) const;
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/// Helper for boundingBoxOf(Aoc|Aoe)()
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/*!
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* Returns true iff angle theta is in [first, last], where the arc goes
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* clockwise (cw=true) or counterclockwise (cw=false) from first to last.
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*/
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bool isWithinArc(double theta, double first, double last, bool cw) const;
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void extractVerts(HLRBRep_Algo *myAlgo, const TopoDS_Shape &S, HLRBRep_EdgeData& ed, int ie, ExtractionType extractionType);
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void extractEdges(HLRBRep_Algo *myAlgo, const TopoDS_Shape &S, int type, bool visible, ExtractionType extractionType);
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void extractFaces(HLRBRep_Algo *myAlgo,
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const TopoDS_Shape &S,
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bool visible,
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ExtractionType extractionType,
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std::vector<DrawingGeometry::Face *> &projFaces,
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std::vector<int> &faceRefs) const;
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int calculateGeometry(const TopoDS_Shape &input, ExtractionType extractionType, std::vector<BaseGeom *> &geoms) const;
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/// Accumulate edges from input and store them in wires
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void createWire(const TopoDS_Shape &input, std::vector<TopoDS_Wire> &wiresOut) const;
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// Geometry
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std::vector<BaseGeom *> edgeGeom;
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std::vector<Vertex *> vertexGeom;
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std::vector<Face *> faceGeom;
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bool findVertex(Base::Vector2D v);
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// indexes to geometry in Source object
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std::vector<int> vertexReferences;
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std::vector<int> edgeReferences;
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std::vector<int> faceReferences;
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HLRBRep_Algo *brep_hlr;
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double Tolerance;
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double Scale;
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/// Returns the centroid of shape, as viewed according to direction and xAxis
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gp_Pnt findCentroid(const TopoDS_Shape &shape,
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const Base::Vector3d &direction,
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const Base::Vector3d &xAxis) const;
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};
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} //namespace TechDrawGeometry
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#endif
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