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