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https://git.dev.opencascade.org/repos/occt.git
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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
281 lines
6.9 KiB
C++
281 lines
6.9 KiB
C++
// Created on: 1991-07-15
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// Created by: Arnaud BOUZY
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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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#include <Draw_Color.hxx>
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#include <Draw_Display.hxx>
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#include <ElCLib.hxx>
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#include <gp_Circ.hxx>
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#include <gp_Circ2d.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Pnt2d.hxx>
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extern Standard_Boolean Draw_Bounds;
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//=======================================================================
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//function : DrawMarker
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//purpose :
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//=======================================================================
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void Draw_Display::DrawMarker (const gp_Pnt& pt,
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const Draw_MarkerShape S,
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const Standard_Integer Size)
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{
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gp_Pnt2d p;
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Project(pt,p);
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DrawMarker(p,S,Size);
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}
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//=======================================================================
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//function : DrawMarker
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//purpose :
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//=======================================================================
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void Draw_Display::DrawMarker (const gp_Pnt2d& pt,
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const Draw_MarkerShape S,
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const Standard_Integer ISize)
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{
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Draw_Bounds = Standard_False;
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gp_Pnt2d p1 = pt;
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gp_Pnt2d p2 = p1;
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gp_Circ2d C;
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Standard_Real Size = ((Standard_Real) ISize) / Zoom();
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switch (S) {
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case Draw_Square :
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p1.Translate(gp_Vec2d(-Size,-Size));
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p2.Translate(gp_Vec2d( Size,-Size));
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Draw(p1,p2);
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p1.Translate(gp_Vec2d(2*Size,2*Size));
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Draw(p1,p2);
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p2.Translate(gp_Vec2d(-2*Size,2*Size));
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Draw(p1,p2);
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p1.Translate(gp_Vec2d(-2*Size,-2*Size));
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Draw(p1,p2);
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break;
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case Draw_Losange :
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p1.Translate(gp_Vec2d(-Size,0));
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p2.Translate(gp_Vec2d( 0,Size));
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Draw(p1,p2);
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p1.Translate(gp_Vec2d(2*Size,0));
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Draw(p1,p2);
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p2.Translate(gp_Vec2d(0,-2*Size));
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Draw(p1,p2);
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p1.Translate(gp_Vec2d(-2*Size,0));
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Draw(p1,p2);
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break;
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case Draw_X :
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p1.Translate(gp_Vec2d(-Size,-Size));
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p2.Translate(gp_Vec2d( Size,Size));
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Draw(p1,p2);
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p1.Translate(gp_Vec2d(2*Size,0));
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p2.Translate(gp_Vec2d(-2*Size,0));
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Draw(p1,p2);
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break;
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case Draw_Plus :
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p1.Translate(gp_Vec2d(-Size,0));
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p2.Translate(gp_Vec2d( Size,0));
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Draw(p1,p2);
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p1.Translate(gp_Vec2d(Size,Size));
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p2.Translate(gp_Vec2d(-Size,-Size));
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Draw(p1,p2);
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break;
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case Draw_Circle :
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// gp_Circ2d C;
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C.SetRadius(ISize);
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C.SetLocation(pt);
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Draw(C, 0, 2*M_PI, Standard_False);
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break;
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default:
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break;
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}
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Draw_Bounds = Standard_True;
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MoveTo(pt);
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}
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//=======================================================================
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//function : DrawMarker
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//purpose :
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//=======================================================================
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void Draw_Display::DrawMarker (const gp_Pnt& pt,
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const Draw_MarkerShape S,
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const Standard_Real Size)
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{
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gp_Pnt2d p;
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Project(pt,p);
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DrawMarker(p,S,Size);
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}
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//=======================================================================
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//function : DrawMarker
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//purpose :
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//=======================================================================
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void Draw_Display::DrawMarker (const gp_Pnt2d& pt,
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const Draw_MarkerShape S,
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const Standard_Real R)
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{
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switch (S) {
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case Draw_Square :
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case Draw_Losange :
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case Draw_X :
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case Draw_Plus :
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case Draw_Circle :
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{
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Standard_Integer I = (Standard_Integer ) R;
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if(!I) return;
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DrawMarker(pt, S, I);
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break;
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}
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case Draw_CircleZoom :
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if(R == 0.0) return;
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gp_Circ2d C;
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C.SetRadius(R);
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C.SetLocation(pt);
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// if the circus is too small, a "plus" is drawn to mark the point
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Standard_Boolean b = (R * Zoom()) > 2;
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if(b)
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Draw(C, 0, 2*M_PI);
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else
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DrawMarker(pt, Draw_Plus);
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}
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Draw_Bounds = Standard_True;
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MoveTo(pt);
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}
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#define MAXPNT 200
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#define DEFLECTION 5
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//=======================================================================
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//function : Draw
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//purpose :
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//=======================================================================
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void Draw_Display::Draw(const gp_Circ& C, const Standard_Real A1,const Standard_Real A3,
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const Standard_Boolean ModifyWithZoom)
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{
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Standard_Real A2 = A3;
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while (A2 < A1) A2 += 2*M_PI;
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Standard_Real angle = DEFLECTION / (C.Radius() * Zoom());
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Standard_Integer n = (Standard_Integer )( (A2 - A1) / angle);
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if (n > MAXPNT) {
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angle = (A2 - A1) / MAXPNT;
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n = MAXPNT;
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}
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if (n <= 6) {
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angle = (A2 - A1) / 6;
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n = 6;
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}
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Standard_Real c = 2*Cos(angle);
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gp_Circ Cloc(C);
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if(!ModifyWithZoom) {
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Standard_Integer ISize = (Standard_Integer )( Cloc.Radius() / Zoom());
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Cloc.SetRadius(ISize);
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}
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gp_Pnt PC = Cloc.Location();
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gp_Pnt P = ElCLib::Value(A1,Cloc);
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MoveTo(P);
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gp_Vec V1(PC,P);
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P = ElCLib::Value(A1+angle,Cloc);
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gp_Vec V2(PC,P);
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DrawTo(P);
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gp_Vec V;
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for (Standard_Integer i = 2; i < n; i++) {
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V = c * V2 - V1;
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V1 = V2;
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V2 = V;
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DrawTo(PC.Translated(V));
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}
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P = ElCLib::Value(A2,Cloc);
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DrawTo(P);
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}
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//=======================================================================
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//function : Draw
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//purpose :
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//=======================================================================
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void Draw_Display::Draw(const gp_Circ2d& C, const Standard_Real A1, const Standard_Real A3,
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const Standard_Boolean ModifyWithZoom)
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{
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Standard_Real A2 = A3;
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while (A2 < A1) A2 += 2*M_PI;
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Standard_Real angle = DEFLECTION / (C.Radius() * Zoom());
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Standard_Integer n = (Standard_Integer )( (A2 - A1) / angle);
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if (n > MAXPNT) {
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angle = (A2 - A1) / MAXPNT;
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n = MAXPNT;
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}
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else if (n <= 6) {
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angle = (A2 - A1) / 6;
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n = 6;
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}
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Standard_Real c = 2*Cos(angle);
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gp_Circ2d Cloc(C);
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if(!ModifyWithZoom) {// the effet of zoom is cancelled to follow
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Standard_Real Size = Cloc.Radius() / Zoom();
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Cloc.SetRadius(Size);
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}
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gp_Pnt2d PC = Cloc.Location();
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gp_Pnt2d P = ElCLib::Value(A1,Cloc);
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MoveTo(P);
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gp_Vec2d V1(PC,P);
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P = ElCLib::Value(A1+angle,Cloc);
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gp_Vec2d V2(PC,P);
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DrawTo(P);
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gp_Vec2d V;
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for (Standard_Integer i = 2; i < n; i++) {
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V = c * V2 - V1;
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V1 = V2;
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V2 = V;
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DrawTo(PC.Translated(V));
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}
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P = ElCLib::Value(A2,Cloc);
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DrawTo(P);
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}
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//=======================================================================
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//function : Project
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//purpose :
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//=======================================================================
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gp_Pnt2d Draw_Display::Project(const gp_Pnt& p) const
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{
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gp_Pnt2d pt;
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Project(p,pt);
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return pt;
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}
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