0024157: Parallelization of assembly part of BO
[occt.git] / src / DrawTrSurf / DrawTrSurf_Curve2d.cxx
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b311480e 1// Copyright (c) 1995-1999 Matra Datavision
2// Copyright (c) 1999-2012 OPEN CASCADE SAS
3//
4// The content of this file is subject to the Open CASCADE Technology Public
5// License Version 6.5 (the "License"). You may not use the content of this file
6// except in compliance with the License. Please obtain a copy of the License
7// at http://www.opencascade.org and read it completely before using this file.
8//
9// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
10// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11//
12// The Original Code and all software distributed under the License is
13// distributed on an "AS IS" basis, without warranty of any kind, and the
14// Initial Developer hereby disclaims all such warranties, including without
15// limitation, any warranties of merchantability, fitness for a particular
16// purpose or non-infringement. Please see the License for the specific terms
17// and conditions governing the rights and limitations under the License.
18
7fd59977 19#include <DrawTrSurf_Curve2d.ixx>
20#include <Geom2d_Curve.hxx>
21#include <Geom2d_OffsetCurve.hxx>
22#include <Geom2d_Line.hxx>
23#include <Geom2d_Parabola.hxx>
24#include <Geom2d_Hyperbola.hxx>
25#include <Geom2dAdaptor_Curve.hxx>
26#include <Geom_Plane.hxx>
27#include <GeomTools_Curve2dSet.hxx>
28#include <Geom2dLProp_CLProps2d.hxx>
29#include <gp.hxx>
30#include <TColStd_Array1OfReal.hxx>
31#include <Precision.hxx>
32
33static Standard_Real DrawTrSurf_CurveLimit = 400;
34extern Standard_Boolean Draw_Bounds;
35
36//=======================================================================
37//function : DrawTrSurf_Curve2d
38//purpose :
39//=======================================================================
40
41DrawTrSurf_Curve2d::DrawTrSurf_Curve2d (const Handle(Geom2d_Curve)& C,
42 const Standard_Boolean DispOrigin) :
43 DrawTrSurf_Drawable (50)
44{
45 curv = C;
46 look = Draw_vert;
47 disporigin = DispOrigin ;
48 dispcurvradius = Standard_False;
49 radiusmax = 1.0e3;
50 radiusratio = 0.1;
51}
52
53
54//=======================================================================
55//function : DrawTrSurf_Curve2d
56//purpose :
57//=======================================================================
58
59DrawTrSurf_Curve2d::DrawTrSurf_Curve2d (const Handle(Geom2d_Curve)& C,
60 const Draw_Color& aColor,
61 const Standard_Integer Discret,
62 const Standard_Boolean DispOrigin,
63 const Standard_Boolean DispCurvRadius,
64 const Standard_Real RadiusMax,
65 const Standard_Real RadiusRatio) :
66 DrawTrSurf_Drawable (Discret)
67{
68 curv = C;
69 look = aColor;
70 disporigin = DispOrigin ;
71 dispcurvradius = DispCurvRadius;
72 radiusmax = RadiusMax;
73 radiusratio = RadiusRatio;
74}
75
76
77//=======================================================================
78//function : DrawOn
79//purpose :
80//=======================================================================
81
82void DrawTrSurf_Curve2d::DrawOn (Draw_Display& dis) const
83{
84
85 Standard_Real First = curv->FirstParameter();
86 Standard_Real Last = curv->LastParameter();
87 Standard_Boolean firstInf = Precision::IsNegativeInfinite(First);
88 Standard_Boolean lastInf = Precision::IsPositiveInfinite(Last);
89
90 if (firstInf || lastInf) {
91 gp_Pnt2d P1,P2;
92 Standard_Real delta = 1;
93 if (firstInf && lastInf) {
94 do {
95 delta *= 2;
96 First = - delta;
97 Last = delta;
98 curv->D0(First,P1);
99 curv->D0(Last,P2);
100 } while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
101 }
102 else if (firstInf) {
103 curv->D0(Last,P2);
104 do {
105 delta *= 2;
106 First = Last - delta;
107 curv->D0(First,P1);
108 } while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
109 }
110 else if (lastInf) {
111 curv->D0(First,P1);
112 do {
113 delta *= 2;
114 Last = First + delta;
115 curv->D0(Last,P2);
116 } while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
117 }
118 }
119
120 dis.SetColor (look);
121
122 Geom2dAdaptor_Curve C2d(curv,First,Last);
123 DrawCurve2dOn (C2d, dis);
124
125// mark the origin
126 if (disporigin) {
127 Draw_Bounds = Standard_False;
128 gp_Pnt2d p1,p2;
129 gp_Vec2d v;
130 C2d.D1(Last,p1,v);
131 if (v.Magnitude() > gp::Resolution()) {
132 Standard_Real L = 20 / dis.Zoom();
133 Standard_Real H = 10 / dis.Zoom();
134 gp_Dir2d d(v);
135 p2.SetCoord(p1.X() - L*d.X() - H*d.Y(), p1.Y() - L*d.Y() + H*d.X());
136 dis.MoveTo(p2);
137 p2.SetCoord(p1.X() - L*d.X() + H*d.Y(), p1.Y() - L*d.Y() - H*d.X());
138 dis.DrawTo(p1);
139 dis.DrawTo(p2);
140 }
141 Draw_Bounds = Standard_True;
142 }
143
144// Draw the curvature Radius
145 if (dispcurvradius && (C2d.GetType() != GeomAbs_Line)) {
146 Standard_Integer ii;
147 Standard_Integer intrv, nbintv = C2d.NbIntervals(GeomAbs_CN);
148 TColStd_Array1OfReal TI(1,nbintv+1);
149 C2d.Intervals(TI,GeomAbs_CN);
150 Standard_Real Resolution = 1.0e-9, Curvature;
151 Geom2dLProp_CLProps2d LProp(curv, 2, Resolution);
152 gp_Pnt2d P1, P2;
153
154 for (intrv = 1; intrv <= nbintv; intrv++) {
155 Standard_Real t = TI(intrv);
156 Standard_Real step = (TI(intrv+1) - t) / GetDiscretisation();
157 Standard_Real LRad, ratio;
158 for (ii = 1; ii <= GetDiscretisation(); ii++) {
159 LProp.SetParameter(t);
160 if (LProp.IsTangentDefined()) {
161 Curvature = Abs(LProp.Curvature());
162 if ( Curvature > Resolution) {
163 curv->D0(t, P1);
164 dis.MoveTo(P1);
165 LRad = 1./Curvature;
166 ratio = ( ( LRad > radiusmax) ? radiusmax/LRad : 1 );
167 ratio *= radiusratio;
168 LProp.CentreOfCurvature(P2);
169 gp_Vec2d V(P1, P2);
170 dis.DrawTo(P1.Translated(ratio*V));
171 }
172 }
173 t += step;
174 }
175 }
176 }
177}
178
179
180
181//=======================================================================
182//function : Copy
183//purpose :
184//=======================================================================
185Handle(Draw_Drawable3D) DrawTrSurf_Curve2d::Copy()const
186{
187 Handle(DrawTrSurf_Curve2d) DC = new DrawTrSurf_Curve2d
188 (Handle(Geom2d_Curve)::DownCast(curv->Copy()),
189 look,
190 GetDiscretisation());
191
192 return DC;
193}
194
195
196//=======================================================================
197//function : Dump
198//purpose :
199//=======================================================================
200
201void DrawTrSurf_Curve2d::Dump(Standard_OStream& S) const
202{
203 GeomTools_Curve2dSet::PrintCurve2d(curv,S);
204}
205
206
207//=======================================================================
208//function : Whatis
209//purpose :
210//=======================================================================
211
212void DrawTrSurf_Curve2d::Whatis(Draw_Interpretor& S)const
213{
214 S << "2d curve";
215}
216
217
218//=======================================================================
219//function : Is3D
220//purpose :
221//=======================================================================
222
223Standard_Boolean DrawTrSurf_Curve2d::Is3D() const
224{
225 return Standard_False;
226}