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occt/src/PrsDim/PrsDim_MidPointRelation.hxx

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// Created on: 2000-10-20
// Created by: Julia DOROVSKIKH
// Copyright (c) 2000-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _PrsDim_MidPointRelation_HeaderFile
#define _PrsDim_MidPointRelation_HeaderFile
#include <PrsDim_Relation.hxx>
class Geom_Plane;
class gp_Lin;
class gp_Pnt;
class gp_Circ;
class gp_Elips;
DEFINE_STANDARD_HANDLE(PrsDim_MidPointRelation, PrsDim_Relation)
//! presentation of equal distance to point myMidPoint
class PrsDim_MidPointRelation : public PrsDim_Relation
{
DEFINE_STANDARD_RTTIEXT(PrsDim_MidPointRelation, PrsDim_Relation)
public:
Standard_EXPORT PrsDim_MidPointRelation(const TopoDS_Shape& aSymmTool, const TopoDS_Shape& FirstShape, const TopoDS_Shape& SecondShape, const Handle(Geom_Plane)& aPlane);
virtual Standard_Boolean IsMovable() const Standard_OVERRIDE { return Standard_True; }
void SetTool (const TopoDS_Shape& aMidPointTool) { myTool = aMidPointTool; }
const TopoDS_Shape& GetTool() const { return myTool; }
private:
Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager)& thePrsMgr,
const Handle(Prs3d_Presentation)& thePrs,
const Standard_Integer theMode) Standard_OVERRIDE;
Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& theSel,
const Standard_Integer theMode) Standard_OVERRIDE;
Standard_EXPORT void ComputeFaceFromPnt (const Handle(Prs3d_Presentation)& aprs, const Standard_Boolean first);
Standard_EXPORT void ComputeEdgeFromPnt (const Handle(Prs3d_Presentation)& aprs, const Standard_Boolean first);
Standard_EXPORT void ComputeVertexFromPnt (const Handle(Prs3d_Presentation)& aprs, const Standard_Boolean first);
Standard_EXPORT void ComputePointsOnLine (const gp_Lin& aLin, const Standard_Boolean first);
Standard_EXPORT void ComputePointsOnLine (const gp_Pnt& pnt1, const gp_Pnt& pnt2, const Standard_Boolean first);
Standard_EXPORT void ComputePointsOnCirc (const gp_Circ& aCirc, const gp_Pnt& pnt1, const gp_Pnt& pnt2, const Standard_Boolean first);
//! ComputePointsOn... methods set myFAttach, myFirstPnt and myLastPnt
//! from the following initial data: curve, end points, myMidPoint.
//! End points (pnt1 & pnt2) and curve define the trimmed curve.
//! If end points are equal, curve is not trimmed (line - special case).
//!
//! .------. pnt2
//! /
//! . circle . myLastPnt
//! | |
//! . pnt1 . myFAttach
//! \ arc / . myMidPoint
//! .______. myFirstPnt
Standard_EXPORT void ComputePointsOnElips (const gp_Elips& anEll, const gp_Pnt& pnt1, const gp_Pnt& pnt2, const Standard_Boolean first);
private:
TopoDS_Shape myTool;
gp_Pnt myMidPoint;
gp_Pnt myFAttach;
gp_Pnt myFirstPnt1;
gp_Pnt myFirstPnt2;
gp_Pnt mySAttach;
gp_Pnt mySecondPnt1;
gp_Pnt mySecondPnt2;
};
#endif // _AIS_MidPointRelation_HeaderFile