projects / occt.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
0026377: Passing Handle objects as arguments to functions as non-const reference...
[occt.git] / src / DrawTrSurf / DrawTrSurf_Curve.cxx
CommitLineData
b311480e 1// Copyright (c) 1995-1999 Matra Datavision
973c2be1 2// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 3//
973c2be1 4// This file is part of Open CASCADE Technology software library.
b311480e 5//
d5f74e42 6// This library is free software; you can redistribute it and/or modify it under
7// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 8// by the Free Software Foundation, with special exception defined in the file
9// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10// distribution for complete text of the license and disclaimer of any warranty.
b311480e 11//
973c2be1 12// Alternatively, this file may be used under the terms of Open CASCADE
13// commercial license or contractual agreement.
b311480e 14
42cf5bc1 15
16#include <Draw_Color.hxx>
17#include <Draw_Display.hxx>
18#include <Draw_Drawable3D.hxx>
19#include <DrawTrSurf_Curve.hxx>
20#include <Geom_Curve.hxx>
7fd59977 21#include <GeomAdaptor_Curve.hxx>
7fd59977 22#include <GeomLProp_CLProps.hxx>
42cf5bc1 23#include <GeomTools_CurveSet.hxx>
7fd59977 24#include <gp.hxx>
7fd59977 25#include <gp_Dir2d.hxx>
42cf5bc1 26#include <gp_Pnt2d.hxx>
7fd59977 27#include <gp_Vec.hxx>
28#include <gp_Vec2d.hxx>
42cf5bc1 29#include <Precision.hxx>
30#include <Standard_Type.hxx>
7fd59977 31#include <TColStd_Array1OfReal.hxx>
32
92efcf78 33IMPLEMENT_STANDARD_RTTIEXT(DrawTrSurf_Curve,DrawTrSurf_Drawable)
34
7fd59977 35Standard_Real DrawTrSurf_CurveLimit = 400;
36extern Standard_Boolean Draw_Bounds;
37
38
39//=======================================================================
40//function : DrawTrSurf_Curve
41//purpose :
42//=======================================================================
43
44DrawTrSurf_Curve::DrawTrSurf_Curve (const Handle(Geom_Curve)& C,
45 const Standard_Boolean DispOrigin) :
46 DrawTrSurf_Drawable (16, 0.01, 1),
47 curv(C),
48 look(Draw_vert),
49 disporigin(DispOrigin),
50 dispcurvradius(Standard_False),
51 radiusmax(1.0e3),
52 radiusratio(0.1)
53{
54}
55
56
57
58//=======================================================================
59//function : DrawTrSurf_Curve
60//purpose :
61//=======================================================================
62
63DrawTrSurf_Curve::DrawTrSurf_Curve (const Handle(Geom_Curve)& C,
64 const Draw_Color& aColor,
65 const Standard_Integer Discret,
66 const Standard_Real Deflection,
67 const Standard_Integer DrawMode,
68 const Standard_Boolean DispOrigin,
69 const Standard_Boolean DispCurvRadius,
70 const Standard_Real RadiusMax,
71 const Standard_Real RadiusRatio) :
72 DrawTrSurf_Drawable (Discret,Deflection, DrawMode),
73 curv(C),
74 look(aColor),
75 disporigin(DispOrigin),
76 dispcurvradius(DispCurvRadius),
77 radiusmax(RadiusMax),
78 radiusratio(RadiusRatio)
79{
80}
81
82
83//=======================================================================
84//function : DrawOn
85//purpose :
86//=======================================================================
87
88void DrawTrSurf_Curve::DrawOn (Draw_Display& dis) const
89{
90 Standard_Real First = curv->FirstParameter();
91 Standard_Real Last = curv->LastParameter();
92 Standard_Boolean firstInf = Precision::IsNegativeInfinite(First);
93 Standard_Boolean lastInf = Precision::IsPositiveInfinite(Last);
94
95 if (firstInf || lastInf) {
96 gp_Pnt P1,P2;
97 Standard_Real delta = 1;
98 if (firstInf && lastInf) {
99 do {
100 delta *= 2;
101 First = - delta;
102 Last = delta;
103 curv->D0(First,P1);
104 curv->D0(Last,P2);
105 } while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
106 }
107 else if (firstInf) {
108 curv->D0(Last,P2);
109 do {
110 delta *= 2;
111 First = Last - delta;
112 curv->D0(First,P1);
113 } while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
114 }
115 else if (lastInf) {
116 curv->D0(First,P1);
117 do {
118 delta *= 2;
119 Last = First + delta;
120 curv->D0(Last,P2);
121 } while (P1.Distance(P2) < DrawTrSurf_CurveLimit);
122 }
123 }
124
125 dis.SetColor (look);
126 GeomAdaptor_Curve C(curv,First,Last);
127 DrawCurveOn(C,dis);
128
129 // mark the orientation
130 if (disporigin) {
131 Draw_Bounds = Standard_False;
132 gp_Pnt P;
133 gp_Vec V;
134 C.D1(Last,P,V);
135 gp_Pnt2d p1,p2;
136 dis.Project(P,p1);
137 P.Translate(V);
138 dis.Project(P,p2);
139 gp_Vec2d v(p1,p2);
140 if (v.Magnitude() > gp::Resolution()) {
141 Standard_Real L = 20 / dis.Zoom();
142 Standard_Real H = 10 / dis.Zoom();
143 gp_Dir2d d(v);
144 p2.SetCoord(p1.X() - L*d.X() - H*d.Y(), p1.Y() - L*d.Y() + H*d.X());
145 dis.MoveTo(p2);
146 p2.SetCoord(p1.X() - L*d.X() + H*d.Y(), p1.Y() - L*d.Y() - H*d.X());
147 dis.DrawTo(p1);
148 dis.DrawTo(p2);
149 }
150 Draw_Bounds = Standard_True;
151 }
152// Draw the curvature Radius
153 if (dispcurvradius && (C.GetType() != GeomAbs_Line)) {
154 Standard_Integer ii;
155 Standard_Integer intrv, nbintv = C.NbIntervals(GeomAbs_CN);
156 TColStd_Array1OfReal TI(1,nbintv+1);
157 C.Intervals(TI,GeomAbs_CN);
158 Standard_Real Resolution = 1.0e-9, Curvature;
159 GeomLProp_CLProps LProp(curv, 2, Resolution);
160 gp_Pnt P1, P2;
161
162 for (intrv = 1; intrv <= nbintv; intrv++) {
163 Standard_Real t = TI(intrv);
164 Standard_Real step = (TI(intrv+1) - t) / GetDiscretisation();
165 Standard_Real LRad, ratio;
166 for (ii = 1; ii <= GetDiscretisation(); ii++) {
167 LProp.SetParameter(t);
168 if (LProp.IsTangentDefined()) {
169 Curvature = Abs(LProp.Curvature());
170 if ( Curvature > Resolution) {
171 curv->D0(t, P1);
172 dis.MoveTo(P1);
173 LRad = 1./Curvature;
174 ratio = ( ( LRad > radiusmax) ? radiusmax/LRad : 1 );
175 ratio *= radiusratio;
176 LProp.CentreOfCurvature(P2);
177 gp_Vec V(P1, P2);
178 dis.DrawTo(P1.Translated(ratio*V));
179 }
180 }
181 t += step;
182 }
183 }
184 }
185}
186
187
188//=======================================================================
189//function : Copy
190//purpose :
191//=======================================================================
192
193Handle(Draw_Drawable3D) DrawTrSurf_Curve::Copy()const
194{
195 Handle(DrawTrSurf_Curve) DC = new DrawTrSurf_Curve
196 (Handle(Geom_Curve)::DownCast(curv->Copy()),
197 look,
198 GetDiscretisation(),GetDeflection(),GetDrawMode());
199
200 return DC;
201}
202
203
204//=======================================================================
205//function : Dump
206//purpose :
207//=======================================================================
208
209void DrawTrSurf_Curve::Dump(Standard_OStream& S)const
210{
211 GeomTools_CurveSet::PrintCurve(curv,S);
212}
213
214
215//=======================================================================
216//function : Whatis
217//purpose :
218//=======================================================================
219
220void DrawTrSurf_Curve::Whatis(Draw_Interpretor& S)const
221{
222 S << " a 3d curve";
223}
Open CASCADE Technology repository