1 // Created on: 1996-08-21
2 // Created by: Jacques MINOT
3 // Copyright (c) 1996-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 // modified 12-january-98
21 #include <Aspect_AspectMarker.hxx>
22 #include <Aspect_TypeOfLine.hxx>
23 #include <Aspect_TypeOfMarker.hxx>
25 #include <DsgPrs_DiameterPresentation.hxx>
27 #include <gp_Circ.hxx>
31 #include <Graphic3d_ArrayOfSegments.hxx>
32 #include <Graphic3d_AspectLine3d.hxx>
33 #include <Graphic3d_AspectMarker3d.hxx>
34 #include <Graphic3d_Group.hxx>
35 #include <Graphic3d_Vertex.hxx>
36 #include <Prs3d_Arrow.hxx>
37 #include <Prs3d_ArrowAspect.hxx>
38 #include <Prs3d_DimensionAspect.hxx>
39 #include <Prs3d_LineAspect.hxx>
40 #include <Prs3d_Presentation.hxx>
41 #include <Prs3d_Text.hxx>
42 #include <Prs3d_TextAspect.hxx>
43 #include <Quantity_Color.hxx>
44 #include <TCollection_ExtendedString.hxx>
46 //==========================================================================
47 // function : DsgPrs_DiameterPresentation::Add
48 // purpose : it is possible to choose the symbol of extremities of the face (arrow, point ...)
49 //==========================================================================
50 void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
51 const Handle(Prs3d_Drawer)& aDrawer,
52 const TCollection_ExtendedString& aText,
53 const gp_Pnt& AttachmentPoint,
54 const gp_Circ& aCircle,
55 const DsgPrs_ArrowSide ArrowPrs,
56 const Standard_Boolean IsDiamSymbol )
58 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
59 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
61 Standard_Real parat = ElCLib::Parameter(aCircle, AttachmentPoint);
62 gp_Pnt ptoncirc = ElCLib::Value (parat, aCircle);
65 gp_Pnt center = aCircle.Location();
66 gp_Vec vecrap (ptoncirc,center);
68 Standard_Real dist = center.Distance(AttachmentPoint);
69 Standard_Real aRadius = aCircle.Radius();
70 Standard_Boolean inside = (dist < aRadius);
72 gp_Pnt pt1 = AttachmentPoint;
78 vecrap *= (dist+aRadius);
79 gp_Pnt OppositePoint = pt1.Translated(vecrap);
81 Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
82 aPrims->AddVertex(pt1);
83 aPrims->AddVertex(OppositePoint);
84 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
87 TCollection_ExtendedString Text = aText;
89 Text = TCollection_ExtendedString("\330 ") + aText; // VRO (2007-05-17) inserted a blank.
90 Prs3d_Text::Draw(aPresentation, LA->TextAspect(), Text, AttachmentPoint);
93 gp_Dir arrdir (vecrap);
94 if (inside) arrdir.Reverse();
96 gp_Vec vecrap2 = vecrap;
97 gp_Pnt ptoncirc2 = ptoncirc;
98 gp_Dir arrdir2 = arrdir;
100 vecrap2 *= (aCircle.Radius() * 2.);
101 ptoncirc2.Translate (vecrap2);
104 DsgPrs::ComputeSymbol(aPresentation,LA,ptoncirc,ptoncirc2,arrdir,arrdir2,ArrowPrs);
108 static Standard_Boolean DsgPrs_InDomain(const Standard_Real fpar,
109 const Standard_Real lpar,
110 const Standard_Real para)
114 return ((para >= fpar) && (para <= lpar));
115 else { // fpar > lpar
116 Standard_Real delta = 2.*M_PI-fpar;
117 Standard_Real lp, par, fp;
120 while(lp > 2*M_PI) lp-=2*M_PI;
121 while(par > 2*M_PI) par-=2*M_PI;
123 return ((par >= fp) && (par <= lp));
126 if (para >= (fpar+2*M_PI)) return Standard_True;
127 if (para <= lpar) return Standard_True;
128 return Standard_False;
132 //=======================================================================
133 //function : DsgPrs_DiameterPresentation::Add
134 //purpose : SZY 12-february-98
135 //=======================================================================
137 void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
138 const Handle(Prs3d_Drawer)& aDrawer,
139 const TCollection_ExtendedString& aText,
140 const gp_Pnt& AttachmentPoint,
141 const gp_Circ& aCircle,
142 const Standard_Real uFirst,
143 const Standard_Real uLast,
144 const DsgPrs_ArrowSide ArrowPrs,//ArrowSide
145 const Standard_Boolean IsDiamSymbol )
147 Standard_Real fpara = uFirst;
148 Standard_Real lpara = uLast;
149 while (lpara > 2.*M_PI) {
154 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
155 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
156 Standard_Real parEndOfArrow = ElCLib::Parameter(aCircle,AttachmentPoint);
158 gp_Pnt DrawPosition = AttachmentPoint;// point of attachment
160 gp_Pnt Center = aCircle.Location();
161 gp_Pnt FirstPoint = ElCLib::Value(uFirst, aCircle);
162 gp_Pnt SecondPoint = ElCLib::Value(uLast, aCircle);
164 if ( !DsgPrs_InDomain(fpara,lpara,parEndOfArrow)) {
165 Standard_Real otherpar = parEndOfArrow + M_PI;// not in domain
166 if (otherpar > 2*M_PI) otherpar -= 2*M_PI;
167 if (DsgPrs_InDomain(fpara,lpara,otherpar)) {
168 parEndOfArrow = otherpar; // parameter on circle
169 EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
172 gp_Dir dir1(gp_Vec(Center, FirstPoint));
173 gp_Dir dir2(gp_Vec(Center, SecondPoint));
174 gp_Lin L1( Center, dir1 );
175 gp_Lin L2( Center, dir2 );
176 if(L1.Distance(AttachmentPoint) < L2.Distance(AttachmentPoint))
178 EndOfArrow = FirstPoint; //***
179 DrawPosition = ElCLib::Value(ElCLib::Parameter( L1, AttachmentPoint ), L1);
183 EndOfArrow = SecondPoint; //***
184 DrawPosition = ElCLib::Value(ElCLib::Parameter( L2, AttachmentPoint ), L2);
189 EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
190 DrawPosition = AttachmentPoint;
193 Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
194 aPrims->AddVertex(DrawPosition);
195 aPrims->AddVertex(EndOfArrow);
196 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
199 TCollection_ExtendedString Text = aText;
201 Text = TCollection_ExtendedString("\330 ") + Text;// => \330 | \370?
202 Prs3d_Text::Draw(aPresentation,LA->TextAspect(),Text,DrawPosition);
204 // Add presentation of arrow
205 gp_Dir DirOfArrow(gp_Vec(DrawPosition, EndOfArrow).XYZ());
206 DsgPrs::ComputeSymbol(aPresentation, LA, EndOfArrow, EndOfArrow, DirOfArrow, DirOfArrow, ArrowPrs);