src/SVTK/SVTK_CubeAxesActor2D.cxx

   1 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 //  SALOME OBJECT : kernel of SALOME component
  24 //  File   : SVTK_CubeAxesActor2D.cxx
  25 //  Author : Eugeny Nikolaev
  26
  27 #include "SVTK_CubeAxesActor2D.h"
  28 #include "VTKViewer_Transform.h"
  29
  30 #include <vtkPolyDataMapper.h>
  31 #include <vtkRectilinearGridGeometryFilter.h>
  32 #include <vtkActor.h>
  33 #include <vtkCubeAxesActor2D.h>
  34 #include <vtkAxisActor2D.h>
  35 #include <vtkCamera.h>
  36 #include <vtkDataSet.h>
  37 #include <vtkMath.h>
  38 #include <vtkObjectFactory.h>
  39 #include <vtkTextProperty.h>
  40 #include <vtkViewport.h>
  41 #include <vtkFloatArray.h>
  42 #include <vtkRectilinearGrid.h>
  43 #include <vtkProperty.h>
  44 #include <vtkProperty2D.h>
  45
  46 vtkCxxRevisionMacro(SVTK_CubeAxesActor2D, "$Revision$");
  47 vtkStandardNewMacro(SVTK_CubeAxesActor2D);
  48
  49 // Instantiate this object.
  50 SVTK_CubeAxesActor2D::SVTK_CubeAxesActor2D()
  51 {
  52   this->wireActorXY = vtkActor::New();
  53   this->wireActorYZ = vtkActor::New();
  54   this->wireActorXZ = vtkActor::New();
  55
  56   this->planeXY = vtkRectilinearGridGeometryFilter::New();
  57   this->planeYZ = vtkRectilinearGridGeometryFilter::New();
  58   this->planeXZ = vtkRectilinearGridGeometryFilter::New();
  59
  60   this->rgridMapperXY = vtkPolyDataMapper::New();
  61   this->rgridMapperYZ = vtkPolyDataMapper::New();
  62   this->rgridMapperXZ = vtkPolyDataMapper::New();
  63
  64   this->rgridMapperXY->SetInput(this->planeXY->GetOutput());
  65   this->rgridMapperYZ->SetInput(this->planeYZ->GetOutput());
  66   this->rgridMapperXZ->SetInput(this->planeXZ->GetOutput());
  67
  68   this->wireActorXY->SetMapper(rgridMapperXY);
  69   this->wireActorYZ->SetMapper(rgridMapperYZ);
  70   this->wireActorXZ->SetMapper(rgridMapperXZ);
  71
  72   this->wireActorXY->GetProperty()->SetRepresentationToWireframe();
  73   this->wireActorYZ->GetProperty()->SetRepresentationToWireframe();
  74   this->wireActorXZ->GetProperty()->SetRepresentationToWireframe();
  75
  76   // setting ambient to 1 (if no - incorrect reaction on light)
  77   this->wireActorXY->GetProperty()->SetAmbient(1);
  78   this->wireActorYZ->GetProperty()->SetAmbient(1);
  79   this->wireActorXZ->GetProperty()->SetAmbient(1);
  80
  81   this->XAxis->SetTitle(this->XLabel);
  82   this->YAxis->SetTitle(this->YLabel);
  83   this->ZAxis->SetTitle(this->ZLabel);
  84
  85   this->XAxis->SetNumberOfLabels(this->NumberOfLabels);
  86   this->YAxis->SetNumberOfLabels(this->NumberOfLabels);
  87   this->ZAxis->SetNumberOfLabels(this->NumberOfLabels);
  88
  89   this->XAxis->SetLabelFormat(this->LabelFormat);
  90   this->YAxis->SetLabelFormat(this->LabelFormat);
  91   this->ZAxis->SetLabelFormat(this->LabelFormat);
  92
  93   this->XAxis->SetFontFactor(this->FontFactor);
  94   this->YAxis->SetFontFactor(this->FontFactor);
  95   this->ZAxis->SetFontFactor(this->FontFactor);
  96
  97   this->XAxis->SetProperty(this->GetProperty());
  98   this->YAxis->SetProperty(this->GetProperty());
  99   this->ZAxis->SetProperty(this->GetProperty());
 100
 101   vtkTextProperty* aTLProp = vtkTextProperty::New();
 102   aTLProp->SetBold(0);
 103   aTLProp->SetItalic(0);
 104   aTLProp->SetShadow(0);
 105   aTLProp->SetFontFamilyToArial();
 106   aTLProp->SetColor(1,0,0);
 107   if (this->XAxis->GetLabelTextProperty())
 108     this->XAxis->GetLabelTextProperty()->ShallowCopy(aTLProp);
 109   aTLProp->SetColor(0,1,0);
 110   if (this->YAxis->GetLabelTextProperty())
 111     this->YAxis->GetLabelTextProperty()->ShallowCopy(aTLProp);
 112   aTLProp->SetColor(0,0,1);
 113   if (this->ZAxis->GetLabelTextProperty())
 114     this->ZAxis->GetLabelTextProperty()->ShallowCopy(aTLProp);;
 115
 116   aTLProp->SetColor(1,0,0);
 117   if (this->XAxis->GetLabelTextProperty())
 118     this->XAxis->GetTitleTextProperty()->ShallowCopy(aTLProp);
 119   aTLProp->SetColor(0,1,0);
 120   if (this->YAxis->GetLabelTextProperty())
 121     this->YAxis->GetTitleTextProperty()->ShallowCopy(aTLProp);
 122   aTLProp->SetColor(0,0,1);
 123   if (this->ZAxis->GetLabelTextProperty())
 124     this->ZAxis->GetTitleTextProperty()->ShallowCopy(aTLProp);
 125
 126   aTLProp->Delete();
 127
 128 }
 129
 130 SVTK_CubeAxesActor2D::~SVTK_CubeAxesActor2D()
 131 {
 132   this->wireActorXY->Delete();
 133   this->wireActorYZ->Delete();
 134   this->wireActorXZ->Delete();
 135
 136   this->planeXY->Delete();
 137   this->planeYZ->Delete();
 138   this->planeXZ->Delete();
 139
 140   this->rgridMapperXY->Delete();
 141   this->rgridMapperYZ->Delete();
 142   this->rgridMapperXZ->Delete();
 143 }
 144
 145 // Static variable describes connections in cube.
 146 static int Conn[8][3] = {{1,2,4}, {0,3,5}, {3,0,6}, {2,1,7},
 147                          {5,6,0}, {4,7,1}, {7,4,2}, {6,5,3}};
 148
 149 // Project the bounding box and compute edges on the border of the bounding
 150 // cube. Determine which parts of the edges are visible via intersection
 151 // with the boundary of the viewport (minus borders).
 152 int SVTK_CubeAxesActor2D::RenderOverlay(vtkViewport *viewport)
 153 {
 154   int renderedSomething=0;
 155
 156   // Initialization
 157   if ( ! this->RenderSomething )
 158     {
 159     return 0;
 160     }
 161
 162   //Render the axes
 163   if ( this->XAxisVisibility )
 164     {
 165     renderedSomething += this->XAxis->RenderOverlay(viewport);
 166     }
 167   if ( this->YAxisVisibility )
 168     {
 169     renderedSomething += this->YAxis->RenderOverlay(viewport);
 170     }
 171   if ( this->ZAxisVisibility )
 172     {
 173     renderedSomething += this->ZAxis->RenderOverlay(viewport);
 174     }
 175
 176   bool RX=false,RY=false;
 177   if (this->XAxisVisibility){
 178     this->wireActorXY->RenderOverlay(viewport);
 179     this->wireActorXZ->RenderOverlay(viewport);
 180     RX = true;
 181   }
 182   if (this->YAxisVisibility){
 183     if(!RX) this->wireActorXY->RenderOverlay(viewport);
 184     this->wireActorYZ->RenderOverlay(viewport);
 185     RY = true;
 186   }
 187   if (this->ZAxisVisibility){
 188     if(!RX) this->wireActorXZ->RenderOverlay(viewport);
 189     if(!RY) this->wireActorYZ->RenderOverlay(viewport);
 190   }
 191
 192   return renderedSomething;
 193 }
 194
 195 static void ChangeValues(vtkFloatingPointType* aArray1,
 196                          vtkFloatingPointType* aArray2,
 197                          vtkFloatingPointType *aRange1,
 198                          vtkFloatingPointType* aRange2,
 199                          bool theY)
 200 {
 201   vtkFloatingPointType tmp=-1000;
 202   if (!theY){
 203     for (int i=0; i<4; i++){
 204       tmp = aArray1[i]; aArray1[i] = aArray2[i]; aArray2[i] = tmp;
 205     }
 206     for(int i=0;i<2; i++){
 207       tmp = aRange1[i]; aRange1[i] = aRange2[i]; aRange2[i] = tmp;
 208     }
 209   }
 210   else{
 211     tmp = aArray1[2]; aArray1[2] = aArray2[0]; aArray2[0] = tmp;
 212     tmp = aArray1[3]; aArray1[3] = aArray2[1]; aArray2[1] = tmp;
 213     tmp = aArray1[0]; aArray1[0] = aArray2[2]; aArray2[2] = tmp;
 214     tmp = aArray1[1]; aArray1[1] = aArray2[3]; aArray2[3] = tmp;
 215
 216     tmp = aRange1[0]; aRange1[0] = aRange2[1]; aRange2[1] = tmp;
 217     tmp = aRange1[1]; aRange1[1] = aRange2[0]; aRange2[0] = tmp;
 218   }
 219 }
 220
 221 static void ChangeArrays(vtkFloatingPointType* xCoords,
 222                          vtkFloatingPointType* yCoords,
 223                          vtkFloatingPointType* zCoords,
 224                          vtkFloatingPointType* xRange,
 225                          vtkFloatingPointType* yRange,
 226                          vtkFloatingPointType* zRange,
 227                          const int xAxes,
 228                          const int yAxes,
 229                          const int zAxes)
 230 {
 231   if ( xAxes == 0 && yAxes == 2 && zAxes == 1)
 232     ChangeValues(yCoords,zCoords,yRange,zRange,true);
 233   else if (xAxes == 1 && yAxes == 0 && zAxes == 2)
 234     ChangeValues(xCoords,yCoords,xRange,yRange,true);
 235   else if (xAxes == 1 && yAxes == 2 && zAxes == 0){
 236     ChangeValues(xCoords,zCoords,xRange,zRange,false);
 237     // xAxes == 0 && yAxes == 2 && zAxes == 1
 238     ChangeValues(yCoords,zCoords,yRange,zRange,true);
 239   } else if (xAxes == 2 && yAxes == 0 && zAxes == 1){
 240     ChangeValues(xCoords,yCoords,xRange,yRange,true);
 241     // xAxes == 0 && yAxes == 2 && zAxes == 1
 242     ChangeValues(zCoords,yCoords,zRange,yRange,true);
 243   } else if (xAxes == 2 && yAxes == 1 && zAxes == 0)
 244     ChangeValues(zCoords,xCoords,zRange,xRange,false);
 245 }
 246
 247 // Project the bounding box and compute edges on the border of the bounding
 248 // cube. Determine which parts of the edges are visible via intersection
 249 // with the boundary of the viewport (minus borders).
 250 int SVTK_CubeAxesActor2D::RenderOpaqueGeometry(vtkViewport *viewport)
 251 {
 252   vtkFloatingPointType bounds[6], slope = 0.0, minSlope, num, den;
 253   vtkFloatingPointType pts[8][3], d2, d2Min, min;
 254   int i, idx = 0;
 255   int xIdx, yIdx = 0, zIdx = 0, zIdx2, renderedSomething=0;
 256   int xAxes = 0, yAxes, zAxes;
 257
 258   // Initialization
 259   if ( !this->Camera )
 260     {
 261     vtkErrorMacro(<<"No camera!");
 262     this->RenderSomething = 0;
 263     return 0;
 264     }
 265
 266   this->RenderSomething = 1;
 267
 268   // determine the bounds to use
 269   this->GetBounds(bounds);
 270
 271   // Build the axes (almost always needed so we don't check mtime)
 272   // Transform all points into display coordinates
 273   this->TransformBounds(viewport, bounds, pts);
 274
 275   // Find the portion of the bounding box that fits within the viewport,
 276   if ( this->ClipBounds(viewport, pts, bounds) == 0 )
 277     {
 278     this->RenderSomething = 0;
 279     return 0;
 280     }
 281
 282   // Take into account the inertia. Process only so often.
 283   if ( this->RenderCount++ == 0 || !(this->RenderCount % this->Inertia) )
 284     {
 285     // Okay, we have a bounding box, maybe clipped and scaled, that is visible.
 286     // We setup the axes depending on the fly mode.
 287     if ( this->FlyMode == VTK_FLY_CLOSEST_TRIAD )
 288       {
 289       // Loop over points and find the closest point to the camera
 290       min = VTK_LARGE_FLOAT;
 291       for (i=0; i < 8; i++)
 292         {
 293         if ( pts[i][2] < min )
 294           {
 295           idx = i;
 296           min = pts[i][2];
 297           }
 298         }
 299
 300       // Setup the three axes to be drawn
 301       xAxes = 0;
 302       xIdx = Conn[idx][0];
 303       yAxes = 1;
 304       yIdx = Conn[idx][1];
 305       zAxes = 2;
 306       zIdx = idx;
 307       zIdx2 = Conn[idx][2];
 308       }
 309     else
 310       {
 311       vtkFloatingPointType e1[2], e2[2], e3[2];
 312
 313       // Find distance to origin
 314       d2Min = VTK_LARGE_FLOAT;
 315       for (i=0; i < 8; i++)
 316         {
 317         d2 = pts[i][0]*pts[i][0] + pts[i][1]*pts[i][1];
 318         if ( d2 < d2Min )
 319           {
 320           d2Min = d2;
 321           idx = i;
 322           }
 323         }
 324
 325       // find minimum slope point connected to closest point and on
 326       // right side (in projected coordinates). This is the first edge.
 327       minSlope = VTK_LARGE_FLOAT;
 328       for (xIdx=0, i=0; i<3; i++)
 329         {
 330         num = (pts[Conn[idx][i]][1] - pts[idx][1]);
 331         den = (pts[Conn[idx][i]][0] - pts[idx][0]);
 332         if ( den != 0.0 )
 333           {
 334           slope = num / den;
 335           }
 336         if ( slope < minSlope && den > 0 )
 337           {
 338           xIdx = Conn[idx][i];
 339           yIdx = Conn[idx][(i+1)%3];
 340           zIdx = Conn[idx][(i+2)%3];
 341           xAxes = i;
 342           minSlope = slope;
 343           }
 344         }
 345
 346       // find edge (connected to closest point) on opposite side
 347       for ( i=0; i<2; i++)
 348         {
 349         e1[i] = (pts[xIdx][i] - pts[idx][i]);
 350         e2[i] = (pts[yIdx][i] - pts[idx][i]);
 351         e3[i] = (pts[zIdx][i] - pts[idx][i]);
 352         }
 353       vtkMath::Normalize2D(e1);
 354       vtkMath::Normalize2D(e2);
 355       vtkMath::Normalize2D(e3);
 356
 357       if ( vtkMath::Dot2D(e1,e2) < vtkMath::Dot2D(e1,e3) )
 358         {
 359         yAxes = (xAxes + 1) % 3;
 360         }
 361       else
 362         {
 363         yIdx = zIdx;
 364         yAxes = (xAxes + 2) % 3;
 365         }
 366
 367       // Find the final point by determining which global x-y-z axes have not
 368       // been represented, and then determine the point closest to the viewer.
 369       zAxes = (xAxes != 0 && yAxes != 0 ? 0 :
 370               (xAxes != 1 && yAxes != 1 ? 1 : 2));
 371       if ( pts[Conn[xIdx][zAxes]][2] < pts[Conn[yIdx][zAxes]][2] )
 372         {
 373         zIdx = xIdx;
 374         zIdx2 = Conn[xIdx][zAxes];
 375         }
 376       else
 377         {
 378         zIdx = yIdx;
 379         zIdx2 = Conn[yIdx][zAxes];
 380         }
 381       }//else boundary edges fly mode
 382     this->InertiaAxes[0] = idx;
 383     this->InertiaAxes[1] = xIdx;
 384     this->InertiaAxes[2] = yIdx;
 385     this->InertiaAxes[3] = zIdx;
 386     this->InertiaAxes[4] = zIdx2;
 387     this->InertiaAxes[5] = xAxes;
 388     this->InertiaAxes[6] = yAxes;
 389     this->InertiaAxes[7] = zAxes;
 390     } //inertia
 391   else
 392     {
 393     idx = this->InertiaAxes[0];
 394     xIdx = this->InertiaAxes[1];
 395     yIdx = this->InertiaAxes[2];
 396     zIdx = this->InertiaAxes[3];
 397     zIdx2 = this->InertiaAxes[4];
 398     xAxes = this->InertiaAxes[5];
 399     yAxes = this->InertiaAxes[6];
 400     zAxes = this->InertiaAxes[7];
 401     }
 402
 403   // Setup the axes for plotting
 404   vtkFloatingPointType xCoords[4], yCoords[4], zCoords[4], xRange[2], yRange[2], zRange[2];
 405   this->AdjustAxes(pts, bounds, idx, xIdx, yIdx, zIdx, zIdx2,
 406                    xAxes, yAxes, zAxes,
 407                    xCoords, yCoords, zCoords, xRange, yRange, zRange);
 408
 409   // Upate axes
 410   this->Labels[0] = this->XLabel;
 411   this->Labels[1] = this->YLabel;
 412   this->Labels[2] = this->ZLabel;
 413
 414   // correct XAxis, YAxis, ZAxis, which must be
 415   // parallel OX, OY, OZ system coordinates
 416   // if xAxes=0 yAxes=1 zAxes=2 - good situation
 417   if (!(xAxes == 0 && yAxes == 1 && zAxes == 2))
 418     ChangeArrays(xCoords,yCoords,zCoords,
 419                  xRange,yRange,zRange,
 420                  xAxes,yAxes,zAxes);
 421
 422   double aTScale[3];
 423   if(m_Transform.GetPointer() != NULL)
 424     m_Transform->GetMatrixScale(aTScale);
 425
 426   this->XAxis->GetPositionCoordinate()->SetValue(xCoords[0], xCoords[1]);
 427   this->XAxis->GetPosition2Coordinate()->SetValue(xCoords[2], xCoords[3]);
 428   if(m_Transform.GetPointer() != NULL) this->XAxis->SetRange(xRange[0]/aTScale[0], xRange[1]/aTScale[0]);
 429   else this->XAxis->SetRange(xRange[0], xRange[1]);
 430
 431   this->YAxis->GetPositionCoordinate()->SetValue(yCoords[2], yCoords[3]);
 432   this->YAxis->GetPosition2Coordinate()->SetValue(yCoords[0], yCoords[1]);
 433   if(m_Transform.GetPointer() != NULL) this->YAxis->SetRange(yRange[1]/aTScale[1], yRange[0]/aTScale[1]);
 434   else this->YAxis->SetRange(yRange[1], yRange[0]);
 435
 436   this->ZAxis->GetPositionCoordinate()->SetValue(zCoords[0], zCoords[1]);
 437   this->ZAxis->GetPosition2Coordinate()->SetValue(zCoords[2], zCoords[3]);
 438   if(m_Transform.GetPointer() != NULL) this->ZAxis->SetRange(zRange[0]/aTScale[2], zRange[1]/aTScale[2]);
 439   else this->ZAxis->SetRange(zRange[0], zRange[1]);
 440
 441   int numOfLabelsX = this->XAxis->GetNumberOfLabels();
 442   int numOfLabelsY = this->YAxis->GetNumberOfLabels();
 443   int numOfLabelsZ = this->ZAxis->GetNumberOfLabels();
 444
 445   // XCoords coordinates for X grid
 446   vtkFloatArray *XCoords = vtkFloatArray::New();
 447   for(int i=0;i<numOfLabelsX;i++){
 448     vtkFloatingPointType val = bounds[0]+i*(bounds[1]-bounds[0])/(numOfLabelsX-1);
 449     XCoords->InsertNextValue(val);
 450   }
 451   // YCoords coordinates for Y grid
 452   vtkFloatArray *YCoords = vtkFloatArray::New();
 453   for(int i=0;i<numOfLabelsX;i++){
 454     vtkFloatingPointType val = bounds[2]+i*(bounds[3]-bounds[2])/(numOfLabelsY-1);
 455     YCoords->InsertNextValue(val);
 456   }
 457   // ZCoords coordinates for Z grid
 458   vtkFloatArray *ZCoords = vtkFloatArray::New();
 459   for(int i=0;i<numOfLabelsZ;i++){
 460     vtkFloatingPointType val = bounds[4]+i*(bounds[5]-bounds[4])/(numOfLabelsZ-1);
 461     ZCoords->InsertNextValue(val);
 462   }
 463
 464   vtkRectilinearGrid *rgrid = vtkRectilinearGrid::New();
 465   rgrid->SetDimensions(numOfLabelsX,numOfLabelsY,numOfLabelsZ);
 466   rgrid->SetXCoordinates(XCoords);
 467   rgrid->SetYCoordinates(YCoords);
 468   rgrid->SetZCoordinates(ZCoords);
 469
 470   this->planeXY->SetInput(rgrid);
 471   this->planeYZ->SetInput(rgrid);
 472   this->planeXZ->SetInput(rgrid);
 473
 474   rgrid->Delete();
 475
 476   vtkFloatingPointType aCPosition[3];
 477   vtkFloatingPointType aCDirection[3];
 478   this->Camera->GetPosition(aCPosition);
 479   this->Camera->GetDirectionOfProjection(aCDirection);
 480
 481   // culculate placement of XY
 482   bool replaceXY=false;
 483   bool replaceYZ=false;
 484   bool replaceXZ=false;
 485   vtkFloatingPointType p[6][3]; // centers of planes
 486   vtkFloatingPointType vecs[6][3]; // 6 vectors from camera position to centers
 487
 488   vtkFloatingPointType aMiddleX = (XCoords->GetValue(0) + XCoords->GetValue(numOfLabelsX-1))/2;
 489   vtkFloatingPointType aMiddleY = (YCoords->GetValue(0) + YCoords->GetValue(numOfLabelsY-1))/2;
 490   vtkFloatingPointType aMiddleZ = (ZCoords->GetValue(0) + ZCoords->GetValue(numOfLabelsZ-1))/2;
 491
 492   // plane XY
 493   p[0][0] = aMiddleX; // plane X=0.5 Y=0.5 Z=0
 494   p[0][1] = aMiddleY;
 495   p[0][2] = ZCoords->GetValue(0);
 496
 497   p[1][0] = aMiddleX; // plane X=0.5 Y=0.5 Z=1
 498   p[1][1] = aMiddleY;
 499   p[1][2] = ZCoords->GetValue(numOfLabelsZ-1);
 500
 501   // plane YZ
 502   p[2][0] = XCoords->GetValue(0); // plane X=0 Y=0.5 Z=0.5
 503   p[2][1] = aMiddleY;
 504   p[2][2] = aMiddleZ;
 505
 506   p[3][0] = XCoords->GetValue(numOfLabelsX-1);
 507   p[3][1] = aMiddleY;
 508   p[3][2] = aMiddleZ;
 509
 510   // plane XZ
 511   p[4][0] = aMiddleX; // plane X=0.5 Y=0 Z=0.5
 512   p[4][1] = YCoords->GetValue(0);
 513   p[4][2] = aMiddleZ;
 514
 515   p[5][0] = aMiddleX; // plane X=0.5 Y=1 Z=0.5
 516   p[5][1] = YCoords->GetValue(numOfLabelsY-1);
 517   p[5][2] = aMiddleZ;
 518
 519   for(int i=0;i<3;i++)
 520     for(int j=0;j<6;j++) vecs[j][i] = p[j][i] - aCPosition[i];
 521
 522   if ( vtkMath::Dot(vecs[0],aCDirection) < vtkMath::Dot(vecs[1],aCDirection))
 523     replaceXY = true;
 524   if ( vtkMath::Dot(vecs[2],aCDirection) < vtkMath::Dot(vecs[3],aCDirection))
 525     replaceYZ = true;
 526   if ( vtkMath::Dot(vecs[4],aCDirection) < vtkMath::Dot(vecs[5],aCDirection))
 527     replaceXZ = true;
 528
 529   if(replaceXY) this->planeXY->SetExtent(0,numOfLabelsX, 0,numOfLabelsY, numOfLabelsZ,numOfLabelsZ);
 530   else this->planeXY->SetExtent(0,numOfLabelsX, 0,numOfLabelsY, 0,0);
 531
 532   if(replaceYZ) this->planeYZ->SetExtent(numOfLabelsX,numOfLabelsX, 0,numOfLabelsY, 0,numOfLabelsZ);
 533   else this->planeYZ->SetExtent(0,0, 0,numOfLabelsY, 0,numOfLabelsZ);
 534
 535   if(replaceXZ) this->planeXZ->SetExtent(0,numOfLabelsX, numOfLabelsY,numOfLabelsY, 0,numOfLabelsZ);
 536   else this->planeXZ->SetExtent(0,numOfLabelsX, 0,0, 0,numOfLabelsZ);
 537
 538   XCoords->Delete();
 539   YCoords->Delete();
 540   ZCoords->Delete();
 541
 542   vtkFloatingPointType color[3];
 543
 544   this->GetProperty()->GetColor(color);
 545   this->wireActorXY->GetProperty()->SetColor(color);
 546   this->wireActorYZ->GetProperty()->SetColor(color);
 547   this->wireActorXZ->GetProperty()->SetColor(color);
 548
 549   /*
 550   // Rebuid text props
 551   // Perform shallow copy here since each individual axis can be
 552   // accessed through the class API (i.e. each individual axis text prop
 553   // can be changed). Therefore, we can not just assign pointers otherwise
 554   // each individual axis text prop would point to the same text prop.
 555
 556   if (this->AxisLabelTextProperty &&
 557       this->AxisLabelTextProperty->GetMTime() > this->BuildTime)
 558     {
 559     if (this->XAxis->GetLabelTextProperty())
 560       {
 561       this->XAxis->GetLabelTextProperty()->ShallowCopy(
 562         this->AxisLabelTextProperty);
 563       }
 564     if (this->YAxis->GetLabelTextProperty())
 565       {
 566       this->YAxis->GetLabelTextProperty()->ShallowCopy(
 567         this->AxisLabelTextProperty);
 568       }
 569     if (this->ZAxis->GetLabelTextProperty())
 570       {
 571       this->ZAxis->GetLabelTextProperty()->ShallowCopy(
 572         this->AxisLabelTextProperty);
 573       }
 574     }
 575
 576   if (this->AxisTitleTextProperty &&
 577       this->AxisTitleTextProperty->GetMTime() > this->BuildTime)
 578     {
 579     if (this->XAxis->GetLabelTextProperty())
 580       {
 581       this->XAxis->GetTitleTextProperty()->ShallowCopy(
 582         this->AxisTitleTextProperty);
 583       }
 584     if (this->YAxis->GetLabelTextProperty())
 585       {
 586       this->YAxis->GetTitleTextProperty()->ShallowCopy(
 587         this->AxisTitleTextProperty);
 588       }
 589     if (this->ZAxis->GetLabelTextProperty())
 590       {
 591       this->ZAxis->GetTitleTextProperty()->ShallowCopy(
 592         this->AxisTitleTextProperty);
 593       }
 594     }
 595   */
 596   this->BuildTime.Modified();
 597
 598   //Render the axes
 599   if ( this->XAxisVisibility )
 600   {
 601     renderedSomething += this->XAxis->RenderOpaqueGeometry(viewport);
 602   }
 603   if ( this->YAxisVisibility )
 604   {
 605     renderedSomething += this->YAxis->RenderOpaqueGeometry(viewport);
 606   }
 607   if ( this->ZAxisVisibility )
 608   {
 609     renderedSomething += this->ZAxis->RenderOpaqueGeometry(viewport);
 610   }
 611
 612   bool RX=false,RY=false;
 613   if (this->XAxisVisibility){
 614     this->wireActorXY->RenderOpaqueGeometry(viewport);
 615     this->wireActorXZ->RenderOpaqueGeometry(viewport);
 616     RX = true;
 617   }
 618   if (this->YAxisVisibility){
 619     if(!RX) this->wireActorXY->RenderOpaqueGeometry(viewport);
 620     this->wireActorYZ->RenderOpaqueGeometry(viewport);
 621     RY = true;
 622   }
 623   if (this->ZAxisVisibility){
 624     if(!RX) this->wireActorXZ->RenderOpaqueGeometry(viewport);
 625     if(!RY) this->wireActorYZ->RenderOpaqueGeometry(viewport);
 626   }
 627
 628   return renderedSomething;
 629 }
 630
 631 // Release any graphics resources that are being consumed by this actor.
 632 // The parameter window could be used to determine which graphic
 633 // resources to release.
 634 void SVTK_CubeAxesActor2D::ReleaseGraphicsResources(vtkWindow *win)
 635 {
 636   this->XAxis->ReleaseGraphicsResources(win);
 637   this->YAxis->ReleaseGraphicsResources(win);
 638   this->ZAxis->ReleaseGraphicsResources(win);
 639
 640   this->wireActorXY->ReleaseGraphicsResources(win);
 641   this->wireActorYZ->ReleaseGraphicsResources(win);
 642   this->wireActorXZ->ReleaseGraphicsResources(win);
 643 }
 644
 645 void SVTK_CubeAxesActor2D::SetTransform(VTKViewer_Transform* theTransform){
 646   this->m_Transform = theTransform;
 647 }
 648
 649 VTKViewer_Transform* SVTK_CubeAxesActor2D::GetTransform(){
 650   return (this->m_Transform.GetPointer());
 651 }