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 #include <DsgPrs_DiameterPresentation.hxx>
21 #include <gp_Circ.hxx>
25 #include <Graphic3d_ArrayOfSegments.hxx>
26 #include <Graphic3d_AspectLine3d.hxx>
27 #include <Graphic3d_AspectMarker3d.hxx>
28 #include <Graphic3d_Group.hxx>
29 #include <Prs3d_Arrow.hxx>
30 #include <Prs3d_ArrowAspect.hxx>
31 #include <Prs3d_DimensionAspect.hxx>
32 #include <Prs3d_LineAspect.hxx>
33 #include <Prs3d_Presentation.hxx>
34 #include <Prs3d_Text.hxx>
35 #include <Prs3d_TextAspect.hxx>
36 #include <TCollection_ExtendedString.hxx>
38 //==========================================================================
39 // function : DsgPrs_DiameterPresentation::Add
40 // purpose : it is possible to choose the symbol of extremities of the face (arrow, point ...)
41 //==========================================================================
42 void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
43 const Handle(Prs3d_Drawer)& aDrawer,
44 const TCollection_ExtendedString& aText,
45 const gp_Pnt& AttachmentPoint,
46 const gp_Circ& aCircle,
47 const DsgPrs_ArrowSide ArrowPrs,
48 const Standard_Boolean IsDiamSymbol )
50 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
51 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
53 Standard_Real parat = ElCLib::Parameter(aCircle, AttachmentPoint);
54 gp_Pnt ptoncirc = ElCLib::Value (parat, aCircle);
57 gp_Pnt center = aCircle.Location();
58 gp_Vec vecrap (ptoncirc,center);
60 Standard_Real dist = center.Distance(AttachmentPoint);
61 Standard_Real aRadius = aCircle.Radius();
62 Standard_Boolean inside = (dist < aRadius);
64 gp_Pnt pt1 = AttachmentPoint;
70 vecrap *= (dist+aRadius);
71 gp_Pnt OppositePoint = pt1.Translated(vecrap);
73 Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
74 aPrims->AddVertex(pt1);
75 aPrims->AddVertex(OppositePoint);
76 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
79 TCollection_ExtendedString Text = aText;
81 Text = TCollection_ExtendedString("\330 ") + aText; // VRO (2007-05-17) inserted a blank.
82 Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), Text, AttachmentPoint);
85 gp_Dir arrdir (vecrap);
86 if (inside) arrdir.Reverse();
88 gp_Vec vecrap2 = vecrap;
89 gp_Pnt ptoncirc2 = ptoncirc;
90 gp_Dir arrdir2 = arrdir;
92 vecrap2 *= (aCircle.Radius() * 2.);
93 ptoncirc2.Translate (vecrap2);
96 DsgPrs::ComputeSymbol(aPresentation,LA,ptoncirc,ptoncirc2,arrdir,arrdir2,ArrowPrs);
100 static Standard_Boolean DsgPrs_InDomain(const Standard_Real fpar,
101 const Standard_Real lpar,
102 const Standard_Real para)
106 return ((para >= fpar) && (para <= lpar));
107 else { // fpar > lpar
108 Standard_Real delta = 2.*M_PI-fpar;
109 Standard_Real lp, par, fp;
112 while(lp > 2*M_PI) lp-=2*M_PI;
113 while(par > 2*M_PI) par-=2*M_PI;
115 return ((par >= fp) && (par <= lp));
118 if (para >= (fpar+2*M_PI)) return Standard_True;
119 if (para <= lpar) return Standard_True;
120 return Standard_False;
124 //=======================================================================
125 //function : DsgPrs_DiameterPresentation::Add
126 //purpose : SZY 12-february-98
127 //=======================================================================
129 void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
130 const Handle(Prs3d_Drawer)& aDrawer,
131 const TCollection_ExtendedString& aText,
132 const gp_Pnt& AttachmentPoint,
133 const gp_Circ& aCircle,
134 const Standard_Real uFirst,
135 const Standard_Real uLast,
136 const DsgPrs_ArrowSide ArrowPrs,//ArrowSide
137 const Standard_Boolean IsDiamSymbol )
139 Standard_Real fpara = uFirst;
140 Standard_Real lpara = uLast;
141 while (lpara > 2.*M_PI) {
146 Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
147 Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
148 Standard_Real parEndOfArrow = ElCLib::Parameter(aCircle,AttachmentPoint);
150 gp_Pnt DrawPosition = AttachmentPoint;// point of attachment
152 gp_Pnt Center = aCircle.Location();
153 gp_Pnt FirstPoint = ElCLib::Value(uFirst, aCircle);
154 gp_Pnt SecondPoint = ElCLib::Value(uLast, aCircle);
156 if ( !DsgPrs_InDomain(fpara,lpara,parEndOfArrow)) {
157 Standard_Real otherpar = parEndOfArrow + M_PI;// not in domain
158 if (otherpar > 2*M_PI) otherpar -= 2*M_PI;
159 if (DsgPrs_InDomain(fpara,lpara,otherpar)) {
160 parEndOfArrow = otherpar; // parameter on circle
161 EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
164 gp_Dir dir1(gp_Vec(Center, FirstPoint));
165 gp_Dir dir2(gp_Vec(Center, SecondPoint));
166 gp_Lin L1( Center, dir1 );
167 gp_Lin L2( Center, dir2 );
168 if(L1.Distance(AttachmentPoint) < L2.Distance(AttachmentPoint))
170 EndOfArrow = FirstPoint; //***
171 DrawPosition = ElCLib::Value(ElCLib::Parameter( L1, AttachmentPoint ), L1);
175 EndOfArrow = SecondPoint; //***
176 DrawPosition = ElCLib::Value(ElCLib::Parameter( L2, AttachmentPoint ), L2);
181 EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle);
182 DrawPosition = AttachmentPoint;
185 Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
186 aPrims->AddVertex(DrawPosition);
187 aPrims->AddVertex(EndOfArrow);
188 Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
191 TCollection_ExtendedString Text = aText;
193 Text = TCollection_ExtendedString("\330 ") + Text;// => \330 | \370?
194 Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), Text, DrawPosition);
196 // Add presentation of arrow
197 gp_Dir DirOfArrow(gp_Vec(DrawPosition, EndOfArrow).XYZ());
198 DsgPrs::ComputeSymbol(aPresentation, LA, EndOfArrow, EndOfArrow, DirOfArrow, DirOfArrow, ArrowPrs);