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9775fa6110
Macro NO_CXX_EXCEPTION was removed from code. Method Raise() was replaced by explicit throw statement. Method Standard_Failure::Caught() was replaced by normal C++mechanism of exception transfer. Method Standard_Failure::Caught() is deprecated now. Eliminated empty constructors. Updated samples. Eliminate empty method ChangeValue from NCollection_Map class. Removed not operable methods from NCollection classes.
146 lines
5.4 KiB
C++
146 lines
5.4 KiB
C++
// Created on: 1991-10-11
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// Created by: Remi GILET
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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//=========================================================================
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// CREATION of the BISSECTICE between a CIRCLE and a STRAIGHT LINE. +
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//=========================================================================
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#include <GccAna_CircLin2dBisec.hxx>
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#include <GccInt_Bisec.hxx>
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#include <GccInt_BLine.hxx>
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#include <GccInt_BParab.hxx>
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#include <gp.hxx>
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#include <gp_Ax2d.hxx>
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#include <gp_Circ2d.hxx>
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#include <gp_Dir2d.hxx>
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#include <gp_Lin2d.hxx>
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#include <gp_XY.hxx>
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#include <Standard_OutOfRange.hxx>
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#include <StdFail_NotDone.hxx>
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//=========================================================================
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GccAna_CircLin2dBisec::
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GccAna_CircLin2dBisec (const gp_Circ2d& Circle ,
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const gp_Lin2d& Line ):
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circle(Circle),
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line(Line)
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{
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//=========================================================================
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// Initialization of fields : +
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// - circle +
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// - line (straight line.) +
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// - NbrSol (number of solution.) +
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// - WellDone (Booleen showing success or failure of algorithm). +
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//=========================================================================
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NbrSol = 2;
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WellDone = Standard_True;
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}
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//=========================================================================
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// Processing. +
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// Return coordinates of origins of the straight line (xloc,yloc) and the +
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// circle (xcencir, ycencir). +
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// Also return the coordinates of the direction of the straight line (xdir, +
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// ydir) and the radius of circle R1. +
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// Check at which side of the straight line is found the center of the circle +
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// to orientate the parabola (sign). +
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// Create axis of each parabola (axeparab1, axeparb2), then +
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// two parabolas (biscirlin1, biscirlin1). +
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//=========================================================================
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Handle(GccInt_Bisec) GccAna_CircLin2dBisec::
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ThisSolution (const Standard_Integer Index) const
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{
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if (!WellDone) throw StdFail_NotDone();
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if ((Index <=0) || (Index > NbrSol)) throw Standard_OutOfRange();
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Handle(GccInt_Bisec) bissol;
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Standard_Real xdir = line.Direction().X();
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Standard_Real ydir = line.Direction().Y();
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Standard_Real xloc = line.Location().X();
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Standard_Real yloc = line.Location().Y();
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Standard_Real xcencir = circle.Location().X();
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Standard_Real ycencir = circle.Location().Y();
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Standard_Real R1 = circle.Radius();
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Standard_Real dist = line.Distance(circle.Location());
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if ((Abs(line.Distance(circle.Location())-circle.Radius())
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<= gp::Resolution()) && (Index == 1)) {
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gp_Lin2d biscirlin1(circle.Location(),gp_Dir2d(-ydir,xdir));
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bissol = new GccInt_BLine(biscirlin1);
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// ==========================================================
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}
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else {
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Standard_Integer signe;
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if ((-ydir*(xcencir-xloc)+xdir*(ycencir-yloc)) > 0.0) {
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signe = 1;
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}
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else {
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signe = -1;
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}
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gp_Ax2d axeparab1;
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// gp_Ax2d axeparab2;
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gp_Parab2d biscirlin;
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if (dist != R1) {
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if (Index == 1) {
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axeparab1=gp_Ax2d(gp_Pnt2d(gp_XY(xcencir+signe*ydir*(dist+R1)/2,
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ycencir-signe*xdir*(dist+R1)/2.)),
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gp_Dir2d(-signe*ydir,signe*xdir));
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biscirlin = gp_Parab2d(axeparab1,(dist+R1)/2.0);
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}
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else {
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if (dist < R1) {
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axeparab1=gp_Ax2d(gp_Pnt2d(gp_XY(xcencir+signe*ydir*(dist-R1)/2,
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ycencir-signe*xdir*(dist-R1)/2.)),
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gp_Dir2d(signe*ydir,-signe*xdir));
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}
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else {
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axeparab1=gp_Ax2d(gp_Pnt2d(gp_XY(xcencir+signe*ydir*(dist-R1)/2,
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ycencir-signe*xdir*(dist-R1)/2.)),
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gp_Dir2d(-signe*ydir,signe*xdir));
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}
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biscirlin = gp_Parab2d(axeparab1,Abs(dist-R1)/2.0);
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}
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bissol = new GccInt_BParab(biscirlin);
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// ==========================================================
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}
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else {
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axeparab1 = gp_Ax2d(gp_Pnt2d(gp_XY(xcencir+signe*ydir*(dist+R1)/2.,
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ycencir-signe*xdir*(dist+R1)/2.)),
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gp_Dir2d(signe*(-ydir),signe*xdir));
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biscirlin = gp_Parab2d(axeparab1,R1);
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bissol = new GccInt_BParab(biscirlin);
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// ==========================================================
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}
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}
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return bissol;
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}
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//=========================================================================
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Standard_Boolean GccAna_CircLin2dBisec::
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IsDone () const { return WellDone; }
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Standard_Integer GccAna_CircLin2dBisec::
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NbSolutions () const { return NbrSol; }
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