src/DsgPrs/DsgPrs_LengthPresentation.cxx

   1 // Copyright (c) 1998-1999 Matra Datavision
   2 // Copyright (c) 1999-2014 OPEN CASCADE SAS
   3 //
   4 // This file is part of Open CASCADE Technology software library.
   5 //
   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
   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.
  11 //
  12 // Alternatively, this file may be used under the terms of Open CASCADE
  13 // commercial license or contractual agreement.
  14
  15 #include <DsgPrs_LengthPresentation.ixx>
  16 #include <gp_Lin.hxx>
  17 #include <gp_Dir.hxx>
  18 #include <ElCLib.hxx>
  19 #include <gce_MakeLin.hxx>
  20 #include <Graphic3d_Group.hxx>
  21 #include <Graphic3d_ArrayOfSegments.hxx>
  22 #include <Graphic3d_ArrayOfPolylines.hxx>
  23 #include <Prs3d_Root.hxx>
  24 #include <Prs3d_Arrow.hxx>
  25 #include <Prs3d_ArrowAspect.hxx>
  26 #include <Prs3d_LineAspect.hxx>
  27 #include <Prs3d_DimensionAspect.hxx>
  28 #include <TCollection_AsciiString.hxx>
  29 #include <Graphic3d_AspectLine3d.hxx>
  30 #include <Prs3d_Text.hxx>
  31 #include <Precision.hxx>
  32 #include <Graphic3d_Vertex.hxx>
  33 #include <Graphic3d_AspectMarker3d.hxx>
  34 #include <Aspect_TypeOfLine.hxx>
  35 #include <Aspect_TypeOfMarker.hxx>
  36 #include <Aspect_AspectMarker.hxx>
  37 #include <Quantity_Color.hxx>
  38 #include <DsgPrs.hxx>
  39
  40 #include <Geom_Curve.hxx>
  41
  42
  43 void DsgPrs_LengthPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
  44                                      const Handle(Prs3d_Drawer)& aDrawer,
  45                                      const TCollection_ExtendedString& aText,
  46                                      const gp_Pnt& AttachmentPoint1,
  47                                      const gp_Pnt& AttachmentPoint2,
  48                                      const gp_Dir& aDirection,
  49                                      const gp_Pnt& OffsetPoint)
  50 {
  51   Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
  52   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
  53
  54   gp_Lin L1 (AttachmentPoint1,aDirection);
  55   gp_Lin L2 (AttachmentPoint2,aDirection);
  56   gp_Pnt Proj1 = ElCLib::Value(ElCLib::Parameter(L1,OffsetPoint),L1);
  57   gp_Pnt Proj2 = ElCLib::Value(ElCLib::Parameter(L2,OffsetPoint),L2);
  58   gp_Lin L3 = Proj1.IsEqual(Proj2,Precision::Confusion())? gp_Lin(Proj1,aDirection) : gce_MakeLin(Proj1,Proj2);
  59   Standard_Real parmin,parmax,parcur;
  60   parmin = ElCLib::Parameter(L3,Proj1);
  61   parmax = parmin;
  62   parcur = ElCLib::Parameter(L3,Proj2);
  63   Standard_Real dist = Abs(parmin-parcur);
  64   if (parcur < parmin) parmin = parcur;
  65   if (parcur > parmax) parmax = parcur;
  66   parcur = ElCLib::Parameter(L3,OffsetPoint);
  67   gp_Pnt offp = ElCLib::Value(parcur,L3);
  68
  69   Standard_Boolean outside = Standard_False;
  70   if (parcur < parmin) {
  71     parmin = parcur;
  72     outside = Standard_True;
  73   }
  74   if (parcur > parmax) {
  75     parmax = parcur;
  76     outside = Standard_True;
  77   }
  78
  79   gp_Pnt PointMin = ElCLib::Value(parmin,L3);
  80   gp_Pnt PointMax = ElCLib::Value(parmax,L3);
  81
  82   // face processing : 1st group
  83   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(6);
  84   aPrims->AddVertex(PointMin);
  85   aPrims->AddVertex(PointMax);
  86
  87   if (dist < (LA->ArrowAspect()->Length()+LA->ArrowAspect()->Length()))
  88     outside = Standard_True;
  89
  90   gp_Dir arrdir = L3.Direction().Reversed();
  91   if (outside)
  92     arrdir.Reverse();
  93
  94   // arrow 1 : 2nd group
  95   Prs3d_Arrow::Draw(aPresentation,Proj1,arrdir, LA->ArrowAspect()->Angle(), LA->ArrowAspect()->Length());
  96
  97   Prs3d_Root::NewGroup(aPresentation);
  98   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
  99
 100   // arrow 2 : 3rd group
 101   Prs3d_Arrow::Draw(aPresentation,Proj2,arrdir.Reversed(), LA->ArrowAspect()->Angle(), LA->ArrowAspect()->Length());
 102
 103   Prs3d_Root::NewGroup(aPresentation);
 104
 105   // text : 4th group
 106   Prs3d_Text::Draw(aPresentation,LA->TextAspect(),aText,offp);
 107
 108   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
 109
 110   // processing of call 1 : 5th group
 111   aPrims->AddVertex(AttachmentPoint1);
 112   aPrims->AddVertex(Proj1);
 113
 114   // processing of call 2 : 6th group
 115   aPrims->AddVertex(AttachmentPoint2);
 116   aPrims->AddVertex(Proj2);
 117
 118   Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 119 }
 120
 121 //==================================================================================
 122 //function : Add
 123 //purpose  : Adds presentation of length dimension between two planar faces
 124 //==================================================================================
 125
 126 void DsgPrs_LengthPresentation::Add( const Handle(Prs3d_Presentation)& aPresentation,
 127                                      const Handle(Prs3d_Drawer)& aDrawer,
 128                                      const TCollection_ExtendedString& aText,
 129                                      const gp_Pnt& AttachmentPoint1,
 130                                      const gp_Pnt& AttachmentPoint2,
 131                                      const gp_Pln& PlaneOfFaces,
 132                                      const gp_Dir& aDirection,
 133                                      const gp_Pnt& OffsetPoint,
 134                                      const DsgPrs_ArrowSide ArrowPrs )
 135 {
 136   Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
 137   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
 138
 139   gp_Pnt EndOfArrow1, EndOfArrow2;
 140   gp_Dir DirOfArrow1;
 141
 142   DsgPrs::ComputePlanarFacesLengthPresentation( LA->ArrowAspect()->Length(),
 143                                                 LA->ArrowAspect()->Length(),
 144                                                 AttachmentPoint1,
 145                                                 AttachmentPoint2,
 146                                                 aDirection,
 147                                                 OffsetPoint,
 148                                                 PlaneOfFaces,
 149                                                 EndOfArrow1,
 150                                                 EndOfArrow2,
 151                                                 DirOfArrow1 );
 152
 153   // Parameters for length's line
 154   gp_Lin LengthLine( OffsetPoint, DirOfArrow1 );
 155   Standard_Real Par1 = ElCLib::Parameter( LengthLine, EndOfArrow1 );
 156   Standard_Real Par2 = ElCLib::Parameter( LengthLine, EndOfArrow2 );
 157   gp_Pnt FirstPoint, LastPoint;
 158   if ((Par1 > 0.0 && Par2 > 0.0) || (Par1 < 0.0 && Par2 < 0.0))
 159   {
 160     FirstPoint = OffsetPoint;
 161     LastPoint  = (Abs( Par1 ) > Abs( Par2 ))? EndOfArrow1 : EndOfArrow2;
 162   }
 163   else
 164   {
 165     FirstPoint = EndOfArrow1;
 166     LastPoint  = EndOfArrow2;
 167   }
 168
 169   // Creating the length's line
 170   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(6);
 171
 172   aPrims->AddVertex(FirstPoint);
 173   aPrims->AddVertex(LastPoint);
 174
 175   // Add presentation of arrows
 176   DsgPrs::ComputeSymbol( aPresentation, LA, EndOfArrow1, EndOfArrow2, DirOfArrow1, DirOfArrow1.Reversed(), ArrowPrs );
 177
 178   // Drawing the text
 179   Prs3d_Text::Draw( aPresentation, LA->TextAspect(), aText, OffsetPoint );
 180
 181   // Line from AttachmentPoint1 to end of Arrow1
 182   aPrims->AddVertex(AttachmentPoint1);
 183   aPrims->AddVertex(EndOfArrow1);
 184
 185   // Line from AttachmentPoint2 to end of Arrow2
 186   aPrims->AddVertex(AttachmentPoint2);
 187   aPrims->AddVertex(EndOfArrow2);
 188
 189   Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 190 }
 191
 192
 193 //=========================================================================================
 194 //function : Add
 195 //purpose  : adds presentation of length between two edges, vertex and edge or two vertices
 196 //=========================================================================================
 197
 198 void DsgPrs_LengthPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
 199                                      const Handle(Prs3d_Drawer)& aDrawer,
 200                                      const TCollection_ExtendedString& aText,
 201                                      const gp_Pnt& AttachmentPoint1,
 202                                      const gp_Pnt& AttachmentPoint2,
 203                                      const gp_Dir& aDirection,
 204                                      const gp_Pnt& OffsetPoint,
 205                                      const DsgPrs_ArrowSide ArrowPrs)
 206 {
 207   Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
 208   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
 209
 210   gp_Lin L1 (AttachmentPoint1,aDirection);
 211   gp_Lin L2 (AttachmentPoint2,aDirection);
 212   gp_Pnt Proj1 = ElCLib::Value(ElCLib::Parameter(L1,OffsetPoint),L1);
 213   gp_Pnt Proj2 = ElCLib::Value(ElCLib::Parameter(L2,OffsetPoint),L2);
 214   gp_Lin L3 = Proj1.IsEqual(Proj2,Precision::Confusion())? gp_Lin(Proj1,aDirection) : gce_MakeLin(Proj1,Proj2);
 215   Standard_Real parmin,parmax,parcur;
 216   parmin = ElCLib::Parameter(L3,Proj1);
 217   parmax = parmin;
 218   parcur = ElCLib::Parameter(L3,Proj2);
 219   Standard_Real dist = Abs(parmin-parcur);
 220   if (parcur < parmin) parmin = parcur;
 221   if (parcur > parmax) parmax = parcur;
 222   parcur = ElCLib::Parameter(L3,OffsetPoint);
 223   gp_Pnt offp = ElCLib::Value(parcur,L3);
 224
 225   Standard_Boolean outside = Standard_False;
 226   if (parcur < parmin) {
 227     parmin = parcur;
 228     outside = Standard_True;
 229   }
 230   if (parcur > parmax) {
 231     parmax = parcur;
 232     outside = Standard_True;
 233   }
 234
 235   gp_Pnt PointMin = ElCLib::Value(parmin,L3);
 236   gp_Pnt PointMax = ElCLib::Value(parmax,L3);
 237
 238   // processing of face
 239   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(6);
 240
 241   aPrims->AddVertex(PointMin);
 242   aPrims->AddVertex(PointMax);
 243
 244   if (dist < (LA->ArrowAspect()->Length()+LA->ArrowAspect()->Length()))
 245     outside = Standard_True;
 246
 247   gp_Dir arrdir = L3.Direction().Reversed();
 248   if (outside)
 249     arrdir.Reverse();
 250
 251   // processing of call  1
 252   aPrims->AddVertex(AttachmentPoint1);
 253   aPrims->AddVertex(Proj1);
 254
 255   // processing of call 2
 256   aPrims->AddVertex(AttachmentPoint2);
 257   aPrims->AddVertex(Proj2);
 258
 259   Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 260
 261   // text
 262   Prs3d_Text::Draw(aPresentation,LA->TextAspect(),aText,offp);
 263
 264   // symbols at the extremities of the face
 265   DsgPrs::ComputeSymbol(aPresentation,LA,Proj1,Proj2,arrdir,arrdir.Reversed(),ArrowPrs);
 266 }
 267
 268
 269 //==================================================================================
 270 //function : Add
 271 //purpose  : Adds presentation of length dimension between two curvilinear faces
 272 //==================================================================================
 273
 274 void DsgPrs_LengthPresentation::Add( const Handle(Prs3d_Presentation)& aPresentation,
 275                                      const Handle(Prs3d_Drawer)& aDrawer,
 276                                      const TCollection_ExtendedString& aText,
 277                                      const Handle( Geom_Surface )& SecondSurf,
 278                                      const gp_Pnt& AttachmentPoint1,
 279                                      const gp_Pnt& AttachmentPoint2,
 280                                      const gp_Dir& aDirection,
 281                                      const gp_Pnt& OffsetPoint,
 282                                      const DsgPrs_ArrowSide ArrowPrs )
 283 {
 284   Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect();
 285   Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect());
 286
 287   gp_Pnt EndOfArrow2;
 288   gp_Dir DirOfArrow1;
 289   Handle( Geom_Curve ) VCurve, UCurve;
 290   Standard_Real FirstU, deltaU = 0.0e0, FirstV, deltaV = 0.0e0;
 291
 292   DsgPrs::ComputeCurvilinearFacesLengthPresentation( LA->ArrowAspect()->Length(),
 293                                                      LA->ArrowAspect()->Length(),
 294                                                      SecondSurf,
 295                                                      AttachmentPoint1,
 296                                                      AttachmentPoint2,
 297                                                      aDirection,
 298                                                      EndOfArrow2,
 299                                                      DirOfArrow1,
 300                                                      VCurve,
 301                                                      UCurve,
 302                                                      FirstU, deltaU,
 303                                                      FirstV, deltaV );
 304
 305   gp_Lin LengthLine( OffsetPoint, DirOfArrow1 );
 306   Standard_Real Par1 = ElCLib::Parameter( LengthLine, AttachmentPoint1 );
 307   Standard_Real Par2 = ElCLib::Parameter( LengthLine, EndOfArrow2 );
 308   gp_Pnt FirstPoint, LastPoint;
 309   if ((Par1 > 0.0 && Par2 > 0.0) || (Par1 < 0.0 && Par2 < 0.0))
 310   {
 311     FirstPoint = OffsetPoint;
 312     LastPoint  = (Abs( Par1 ) > Abs( Par2 ))? AttachmentPoint1 : EndOfArrow2;
 313   }
 314   else
 315   {
 316     FirstPoint = AttachmentPoint1;
 317     LastPoint  = EndOfArrow2;
 318   }
 319
 320   // Creating the length's line
 321   Handle(Graphic3d_ArrayOfPrimitives) aPrims = new Graphic3d_ArrayOfSegments(2);
 322   aPrims->AddVertex(FirstPoint);
 323   aPrims->AddVertex(LastPoint);
 324   Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 325
 326   // Add presentation of arrows
 327   DsgPrs::ComputeSymbol( aPresentation, LA, AttachmentPoint1, EndOfArrow2, DirOfArrow1, DirOfArrow1.Reversed(), ArrowPrs );
 328
 329   // Drawing the text
 330   Prs3d_Text::Draw( aPresentation, LA->TextAspect(), aText, OffsetPoint );
 331
 332   // Two curves from end of Arrow2 to AttachmentPoint2
 333   Standard_Real Alpha, delta;
 334   Standard_Integer NodeNumber;
 335
 336   Alpha  = Abs( deltaU );
 337   if (Alpha > Precision::Angular() && Alpha<Precision::Infinite())
 338   {
 339     NodeNumber = Max( 4 , Standard_Integer (50. * Alpha / M_PI) );
 340     delta = deltaU / (Standard_Real)( NodeNumber - 1 );
 341     aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
 342     for (Standard_Integer i = 1; i <= NodeNumber; i++, FirstU += delta)
 343       aPrims->AddVertex(VCurve->Value( FirstU ));
 344     Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 345   }
 346   Alpha  = Abs( deltaV );
 347   if (Alpha > Precision::Angular() && Alpha<Precision::Infinite())
 348   {
 349     NodeNumber = Max( 4 , Standard_Integer (50. * Alpha / M_PI) );
 350     delta = deltaV / (Standard_Real)( NodeNumber - 1 );
 351     aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
 352     for (Standard_Integer i = 1; i <= NodeNumber; i++, FirstV += delta)
 353       aPrims->AddVertex(UCurve->Value( FirstV ));
 354     Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 355   }
 356 }
 357
 358
 359 //================================
 360 // Function:
 361 // Purpose: Rob 26-mar-96
 362 //=================================
 363
 364 void DsgPrs_LengthPresentation::Add (const Handle(Prs3d_Presentation)& aPrs,
 365                                      const Handle(Prs3d_Drawer)& aDrawer,
 366                                      const gp_Pnt& Pt1,
 367                                      const gp_Pnt& Pt2,
 368                                      const DsgPrs_ArrowSide ArrowPrs)
 369 {
 370   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
 371   aPrims->AddVertex(Pt1);
 372   aPrims->AddVertex(Pt2);
 373   Prs3d_Root::CurrentGroup(aPrs)->AddPrimitiveArray(aPrims);
 374
 375   gp_Vec V ;
 376   switch(ArrowPrs)
 377   {
 378     case DsgPrs_AS_LASTAR:
 379     Prs3d_Arrow::Draw(aPrs,Pt2,gp_Dir(gp_Vec(Pt1,Pt2)),
 380                       aDrawer->DimensionAspect()->ArrowAspect()->Angle(),
 381                       aDrawer->DimensionAspect()->ArrowAspect()->Length());
 382     break;
 383     case DsgPrs_AS_FIRSTAR:
 384     Prs3d_Arrow::Draw(aPrs,Pt1,gp_Dir(gp_Vec(Pt2,Pt1)),
 385                       aDrawer->DimensionAspect()->ArrowAspect()->Angle(),
 386                       aDrawer->DimensionAspect()->ArrowAspect()->Length());
 387     break;
 388     case DsgPrs_AS_BOTHAR:
 389     V = gp_Vec(Pt1,Pt2);
 390     Prs3d_Arrow::Draw(aPrs,Pt2,gp_Dir(V),
 391                       aDrawer->DimensionAspect()->ArrowAspect()->Angle(),
 392                       aDrawer->DimensionAspect()->ArrowAspect()->Length());
 393     Prs3d_Arrow::Draw(aPrs,Pt1,gp_Dir(V.Reversed()),
 394                       aDrawer->DimensionAspect()->ArrowAspect()->Angle(),
 395                       aDrawer->DimensionAspect()->ArrowAspect()->Length());
 396     break;
 397     default:
 398     break;
 399   }
 400 }