src/SVTK/SVTK_CubeAxesActor2D.cxx

   1 //  Copyright (C) 2007-2008  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 //  SALOME OBJECT : kernel of SALOME component
  23 //  File   : SVTK_CubeAxesActor2D.cxx
  24 //  Author : Eugeny Nikolaev
  25 //  Module : SALOME
  26 //  $Header$
  27 //
  28 #include "SVTK_CubeAxesActor2D.h"
  29 #include "VTKViewer_Transform.h"
  30
  31 #include <vtkPolyDataMapper.h>
  32 #include <vtkRectilinearGridGeometryFilter.h>
  33 #include <vtkActor.h>
  34 #include <vtkCubeAxesActor2D.h>
  35 #include <vtkAxisActor2D.h>
  36 #include <vtkCamera.h>
  37 #include <vtkDataSet.h>
  38 #include <vtkMath.h>
  39 #include <vtkObjectFactory.h>
  40 #include <vtkTextProperty.h>
  41 #include <vtkViewport.h>
  42 #include <vtkFloatArray.h>
  43 #include <vtkRectilinearGrid.h>
  44 #include <vtkProperty.h>
  45 #include <vtkProperty2D.h>
  46
  47 vtkCxxRevisionMacro(SVTK_CubeAxesActor2D, "$Revision$");
  48 vtkStandardNewMacro(SVTK_CubeAxesActor2D);
  49
  50 // Instantiate this object.
  51 SVTK_CubeAxesActor2D::SVTK_CubeAxesActor2D()
  52 {
  53   this->wireActorXY = vtkActor::New();
  54   this->wireActorYZ = vtkActor::New();
  55   this->wireActorXZ = vtkActor::New();
  56
  57   this->planeXY = vtkRectilinearGridGeometryFilter::New();
  58   this->planeYZ = vtkRectilinearGridGeometryFilter::New();
  59   this->planeXZ = vtkRectilinearGridGeometryFilter::New();
  60
  61   this->rgridMapperXY = vtkPolyDataMapper::New();
  62   this->rgridMapperYZ = vtkPolyDataMapper::New();
  63   this->rgridMapperXZ = vtkPolyDataMapper::New();
  64
  65   this->rgridMapperXY->SetInput(this->planeXY->GetOutput());
  66   this->rgridMapperYZ->SetInput(this->planeYZ->GetOutput());
  67   this->rgridMapperXZ->SetInput(this->planeXZ->GetOutput());
  68
  69   this->wireActorXY->SetMapper(rgridMapperXY);
  70   this->wireActorYZ->SetMapper(rgridMapperYZ);
  71   this->wireActorXZ->SetMapper(rgridMapperXZ);
  72
  73   this->wireActorXY->GetProperty()->SetRepresentationToWireframe();
  74   this->wireActorYZ->GetProperty()->SetRepresentationToWireframe();
  75   this->wireActorXZ->GetProperty()->SetRepresentationToWireframe();
  76
  77   // setting ambient to 1 (if no - incorrect reaction on light)
  78   this->wireActorXY->GetProperty()->SetAmbient(1);
  79   this->wireActorYZ->GetProperty()->SetAmbient(1);
  80   this->wireActorXZ->GetProperty()->SetAmbient(1);
  81
  82   this->XAxis->SetTitle(this->XLabel);
  83   this->YAxis->SetTitle(this->YLabel);
  84   this->ZAxis->SetTitle(this->ZLabel);
  85
  86   this->XAxis->SetNumberOfLabels(this->NumberOfLabels);
  87   this->YAxis->SetNumberOfLabels(this->NumberOfLabels);
  88   this->ZAxis->SetNumberOfLabels(this->NumberOfLabels);
  89
  90   this->XAxis->SetLabelFormat(this->LabelFormat);
  91   this->YAxis->SetLabelFormat(this->LabelFormat);
  92   this->ZAxis->SetLabelFormat(this->LabelFormat);
  93
  94   this->XAxis->SetFontFactor(this->FontFactor);
  95   this->YAxis->SetFontFactor(this->FontFactor);
  96   this->ZAxis->SetFontFactor(this->FontFactor);
  97
  98   this->XAxis->SetProperty(this->GetProperty());
  99   this->YAxis->SetProperty(this->GetProperty());
 100   this->ZAxis->SetProperty(this->GetProperty());
 101
 102   vtkTextProperty* aTLProp = vtkTextProperty::New();
 103   aTLProp->SetBold(0);
 104   aTLProp->SetItalic(0);
 105   aTLProp->SetShadow(0);
 106   aTLProp->SetFontFamilyToArial();
 107   aTLProp->SetColor(1,0,0);
 108   if (this->XAxis->GetLabelTextProperty())
 109     this->XAxis->GetLabelTextProperty()->ShallowCopy(aTLProp);
 110   aTLProp->SetColor(0,1,0);
 111   if (this->YAxis->GetLabelTextProperty())
 112     this->YAxis->GetLabelTextProperty()->ShallowCopy(aTLProp);
 113   aTLProp->SetColor(0,0,1);
 114   if (this->ZAxis->GetLabelTextProperty())
 115     this->ZAxis->GetLabelTextProperty()->ShallowCopy(aTLProp);;
 116
 117   aTLProp->SetColor(1,0,0);
 118   if (this->XAxis->GetLabelTextProperty())
 119     this->XAxis->GetTitleTextProperty()->ShallowCopy(aTLProp);
 120   aTLProp->SetColor(0,1,0);
 121   if (this->YAxis->GetLabelTextProperty())
 122     this->YAxis->GetTitleTextProperty()->ShallowCopy(aTLProp);
 123   aTLProp->SetColor(0,0,1);
 124   if (this->ZAxis->GetLabelTextProperty())
 125     this->ZAxis->GetTitleTextProperty()->ShallowCopy(aTLProp);
 126
 127   aTLProp->Delete();
 128
 129 }
 130
 131 SVTK_CubeAxesActor2D::~SVTK_CubeAxesActor2D()
 132 {
 133   this->wireActorXY->Delete();
 134   this->wireActorYZ->Delete();
 135   this->wireActorXZ->Delete();
 136
 137   this->planeXY->Delete();
 138   this->planeYZ->Delete();
 139   this->planeXZ->Delete();
 140
 141   this->rgridMapperXY->Delete();
 142   this->rgridMapperYZ->Delete();
 143   this->rgridMapperXZ->Delete();
 144 }
 145
 146 // Static variable describes connections in cube.
 147 static int Conn[8][3] = {{1,2,4}, {0,3,5}, {3,0,6}, {2,1,7},
 148                          {5,6,0}, {4,7,1}, {7,4,2}, {6,5,3}};
 149
 150 // Project the bounding box and compute edges on the border of the bounding
 151 // cube. Determine which parts of the edges are visible via intersection
 152 // with the boundary of the viewport (minus borders).
 153 int SVTK_CubeAxesActor2D::RenderOverlay(vtkViewport *viewport)
 154 {
 155   int renderedSomething=0;
 156
 157   // Initialization
 158   if ( ! this->RenderSomething )
 159     {
 160     return 0;
 161     }
 162
 163   //Render the axes
 164   if ( this->XAxisVisibility )
 165     {
 166     renderedSomething += this->XAxis->RenderOverlay(viewport);
 167     }
 168   if ( this->YAxisVisibility )
 169     {
 170     renderedSomething += this->YAxis->RenderOverlay(viewport);
 171     }
 172   if ( this->ZAxisVisibility )
 173     {
 174     renderedSomething += this->ZAxis->RenderOverlay(viewport);
 175     }
 176
 177   bool RX=false,RY=false;
 178   if (this->XAxisVisibility){
 179     this->wireActorXY->RenderOverlay(viewport);
 180     this->wireActorXZ->RenderOverlay(viewport);
 181     RX = true;
 182   }
 183   if (this->YAxisVisibility){
 184     if(!RX) this->wireActorXY->RenderOverlay(viewport);
 185     this->wireActorYZ->RenderOverlay(viewport);
 186     RY = true;
 187   }
 188   if (this->ZAxisVisibility){
 189     if(!RX) this->wireActorXZ->RenderOverlay(viewport);
 190     if(!RY) this->wireActorYZ->RenderOverlay(viewport);
 191   }
 192
 193   return renderedSomething;
 194 }
 195
 196 static void ChangeValues(vtkFloatingPointType* aArray1,
 197                          vtkFloatingPointType* aArray2,
 198                          vtkFloatingPointType *aRange1,
 199                          vtkFloatingPointType* aRange2,
 200                          bool theY)
 201 {
 202   vtkFloatingPointType tmp=-1000;
 203   if (!theY){
 204     for (int i=0; i<4; i++){
 205       tmp = aArray1[i]; aArray1[i] = aArray2[i]; aArray2[i] = tmp;
 206     }
 207     for(int i=0;i<2; i++){
 208       tmp = aRange1[i]; aRange1[i] = aRange2[i]; aRange2[i] = tmp;
 209     }
 210   }
 211   else{
 212     tmp = aArray1[2]; aArray1[2] = aArray2[0]; aArray2[0] = tmp;
 213     tmp = aArray1[3]; aArray1[3] = aArray2[1]; aArray2[1] = tmp;
 214     tmp = aArray1[0]; aArray1[0] = aArray2[2]; aArray2[2] = tmp;
 215     tmp = aArray1[1]; aArray1[1] = aArray2[3]; aArray2[3] = tmp;
 216
 217     tmp = aRange1[0]; aRange1[0] = aRange2[1]; aRange2[1] = tmp;
 218     tmp = aRange1[1]; aRange1[1] = aRange2[0]; aRange2[0] = tmp;
 219   }
 220 }
 221
 222 static void ChangeArrays(vtkFloatingPointType* xCoords,
 223                          vtkFloatingPointType* yCoords,
 224                          vtkFloatingPointType* zCoords,
 225                          vtkFloatingPointType* xRange,
 226                          vtkFloatingPointType* yRange,
 227                          vtkFloatingPointType* zRange,
 228                          const int xAxes,
 229                          const int yAxes,
 230                          const int zAxes)
 231 {
 232   if ( xAxes == 0 && yAxes == 2 && zAxes == 1)
 233     ChangeValues(yCoords,zCoords,yRange,zRange,true);
 234   else if (xAxes == 1 && yAxes == 0 && zAxes == 2)
 235     ChangeValues(xCoords,yCoords,xRange,yRange,true);
 236   else if (xAxes == 1 && yAxes == 2 && zAxes == 0){
 237     ChangeValues(xCoords,zCoords,xRange,zRange,false);
 238     // xAxes == 0 && yAxes == 2 && zAxes == 1
 239     ChangeValues(yCoords,zCoords,yRange,zRange,true);
 240   } else if (xAxes == 2 && yAxes == 0 && zAxes == 1){
 241     ChangeValues(xCoords,yCoords,xRange,yRange,true);
 242     // xAxes == 0 && yAxes == 2 && zAxes == 1
 243     ChangeValues(zCoords,yCoords,zRange,yRange,true);
 244   } else if (xAxes == 2 && yAxes == 1 && zAxes == 0)
 245     ChangeValues(zCoords,xCoords,zRange,xRange,false);
 246 }
 247
 248 // Project the bounding box and compute edges on the border of the bounding
 249 // cube. Determine which parts of the edges are visible via intersection
 250 // with the boundary of the viewport (minus borders).
 251 int SVTK_CubeAxesActor2D::RenderOpaqueGeometry(vtkViewport *viewport)
 252 {
 253   vtkFloatingPointType bounds[6], slope = 0.0, minSlope, num, den;
 254   vtkFloatingPointType pts[8][3], d2, d2Min, min;
 255   int i, idx = 0;
 256   int xIdx, yIdx = 0, zIdx = 0, zIdx2, renderedSomething=0;
 257   int xAxes = 0, yAxes, zAxes;
 258
 259   // Initialization
 260   if ( !this->Camera )
 261     {
 262     vtkErrorMacro(<<"No camera!");
 263     this->RenderSomething = 0;
 264     return 0;
 265     }
 266
 267   this->RenderSomething = 1;
 268
 269   // determine the bounds to use
 270   this->GetBounds(bounds);
 271
 272   // Build the axes (almost always needed so we don't check mtime)
 273   // Transform all points into display coordinates
 274   this->TransformBounds(viewport, bounds, pts);
 275
 276   // Find the portion of the bounding box that fits within the viewport,
 277   if ( this->ClipBounds(viewport, pts, bounds) == 0 )
 278     {
 279     this->RenderSomething = 0;
 280     return 0;
 281     }
 282
 283   // Take into account the inertia. Process only so often.
 284   if ( this->RenderCount++ == 0 || !(this->RenderCount % this->Inertia) )
 285     {
 286     // Okay, we have a bounding box, maybe clipped and scaled, that is visible.
 287     // We setup the axes depending on the fly mode.
 288     if ( this->FlyMode == VTK_FLY_CLOSEST_TRIAD )
 289       {
 290       // Loop over points and find the closest point to the camera
 291       min = VTK_LARGE_FLOAT;
 292       for (i=0; i < 8; i++)
 293         {
 294         if ( pts[i][2] < min )
 295           {
 296           idx = i;
 297           min = pts[i][2];
 298           }
 299         }
 300
 301       // Setup the three axes to be drawn
 302       xAxes = 0;
 303       xIdx = Conn[idx][0];
 304       yAxes = 1;
 305       yIdx = Conn[idx][1];
 306       zAxes = 2;
 307       zIdx = idx;
 308       zIdx2 = Conn[idx][2];
 309       }
 310     else
 311       {
 312       vtkFloatingPointType e1[2], e2[2], e3[2];
 313
 314       // Find distance to origin
 315       d2Min = VTK_LARGE_FLOAT;
 316       for (i=0; i < 8; i++)
 317         {
 318         d2 = pts[i][0]*pts[i][0] + pts[i][1]*pts[i][1];
 319         if ( d2 < d2Min )
 320           {
 321           d2Min = d2;
 322           idx = i;
 323           }
 324         }
 325
 326       // find minimum slope point connected to closest point and on
 327       // right side (in projected coordinates). This is the first edge.
 328       minSlope = VTK_LARGE_FLOAT;
 329       for (xIdx=0, i=0; i<3; i++)
 330         {
 331         num = (pts[Conn[idx][i]][1] - pts[idx][1]);
 332         den = (pts[Conn[idx][i]][0] - pts[idx][0]);
 333         if ( den != 0.0 )
 334           {
 335           slope = num / den;
 336           }
 337         if ( slope < minSlope && den > 0 )
 338           {
 339           xIdx = Conn[idx][i];
 340           yIdx = Conn[idx][(i+1)%3];
 341           zIdx = Conn[idx][(i+2)%3];
 342           xAxes = i;
 343           minSlope = slope;
 344           }
 345         }
 346
 347       // find edge (connected to closest point) on opposite side
 348       for ( i=0; i<2; i++)
 349         {
 350         e1[i] = (pts[xIdx][i] - pts[idx][i]);
 351         e2[i] = (pts[yIdx][i] - pts[idx][i]);
 352         e3[i] = (pts[zIdx][i] - pts[idx][i]);
 353         }
 354       vtkMath::Normalize2D(e1);
 355       vtkMath::Normalize2D(e2);
 356       vtkMath::Normalize2D(e3);
 357
 358       if ( vtkMath::Dot2D(e1,e2) < vtkMath::Dot2D(e1,e3) )
 359         {
 360         yAxes = (xAxes + 1) % 3;
 361         }
 362       else
 363         {
 364         yIdx = zIdx;
 365         yAxes = (xAxes + 2) % 3;
 366         }
 367
 368       // Find the final point by determining which global x-y-z axes have not
 369       // been represented, and then determine the point closest to the viewer.
 370       zAxes = (xAxes != 0 && yAxes != 0 ? 0 :
 371               (xAxes != 1 && yAxes != 1 ? 1 : 2));
 372       if ( pts[Conn[xIdx][zAxes]][2] < pts[Conn[yIdx][zAxes]][2] )
 373         {
 374         zIdx = xIdx;
 375         zIdx2 = Conn[xIdx][zAxes];
 376         }
 377       else
 378         {
 379         zIdx = yIdx;
 380         zIdx2 = Conn[yIdx][zAxes];
 381         }
 382       }//else boundary edges fly mode
 383     this->InertiaAxes[0] = idx;
 384     this->InertiaAxes[1] = xIdx;
 385     this->InertiaAxes[2] = yIdx;
 386     this->InertiaAxes[3] = zIdx;
 387     this->InertiaAxes[4] = zIdx2;
 388     this->InertiaAxes[5] = xAxes;
 389     this->InertiaAxes[6] = yAxes;
 390     this->InertiaAxes[7] = zAxes;
 391     } //inertia
 392   else
 393     {
 394     idx = this->InertiaAxes[0];
 395     xIdx = this->InertiaAxes[1];
 396     yIdx = this->InertiaAxes[2];
 397     zIdx = this->InertiaAxes[3];
 398     zIdx2 = this->InertiaAxes[4];
 399     xAxes = this->InertiaAxes[5];
 400     yAxes = this->InertiaAxes[6];
 401     zAxes = this->InertiaAxes[7];
 402     }
 403
 404   // Setup the axes for plotting
 405   vtkFloatingPointType xCoords[4], yCoords[4], zCoords[4], xRange[2], yRange[2], zRange[2];
 406   this->AdjustAxes(pts, bounds, idx, xIdx, yIdx, zIdx, zIdx2,
 407                    xAxes, yAxes, zAxes,
 408                    xCoords, yCoords, zCoords, xRange, yRange, zRange);
 409
 410   // Upate axes
 411   this->Labels[0] = this->XLabel;
 412   this->Labels[1] = this->YLabel;
 413   this->Labels[2] = this->ZLabel;
 414
 415   // correct XAxis, YAxis, ZAxis, which must be
 416   // parallel OX, OY, OZ system coordinates
 417   // if xAxes=0 yAxes=1 zAxes=2 - good situation
 418   if (!(xAxes == 0 && yAxes == 1 && zAxes == 2))
 419     ChangeArrays(xCoords,yCoords,zCoords,
 420                  xRange,yRange,zRange,
 421                  xAxes,yAxes,zAxes);
 422
 423   double aTScale[3];
 424   if(m_Transform.GetPointer() != NULL)
 425     m_Transform->GetMatrixScale(aTScale);
 426
 427   this->XAxis->GetPositionCoordinate()->SetValue(xCoords[0], xCoords[1]);
 428   this->XAxis->GetPosition2Coordinate()->SetValue(xCoords[2], xCoords[3]);
 429   if(m_Transform.GetPointer() != NULL) this->XAxis->SetRange(xRange[0]/aTScale[0], xRange[1]/aTScale[0]);
 430   else this->XAxis->SetRange(xRange[0], xRange[1]);
 431
 432   this->YAxis->GetPositionCoordinate()->SetValue(yCoords[2], yCoords[3]);
 433   this->YAxis->GetPosition2Coordinate()->SetValue(yCoords[0], yCoords[1]);
 434   if(m_Transform.GetPointer() != NULL) this->YAxis->SetRange(yRange[1]/aTScale[1], yRange[0]/aTScale[1]);
 435   else this->YAxis->SetRange(yRange[1], yRange[0]);
 436
 437   this->ZAxis->GetPositionCoordinate()->SetValue(zCoords[0], zCoords[1]);
 438   this->ZAxis->GetPosition2Coordinate()->SetValue(zCoords[2], zCoords[3]);
 439   if(m_Transform.GetPointer() != NULL) this->ZAxis->SetRange(zRange[0]/aTScale[2], zRange[1]/aTScale[2]);
 440   else this->ZAxis->SetRange(zRange[0], zRange[1]);
 441
 442   int numOfLabelsX = this->XAxis->GetNumberOfLabels();
 443   int numOfLabelsY = this->YAxis->GetNumberOfLabels();
 444   int numOfLabelsZ = this->ZAxis->GetNumberOfLabels();
 445
 446   // XCoords coordinates for X grid
 447   vtkFloatArray *XCoords = vtkFloatArray::New();
 448   for(int i=0;i<numOfLabelsX;i++){
 449     vtkFloatingPointType val = bounds[0]+i*(bounds[1]-bounds[0])/(numOfLabelsX-1);
 450     XCoords->InsertNextValue(val);
 451   }
 452   // YCoords coordinates for Y grid
 453   vtkFloatArray *YCoords = vtkFloatArray::New();
 454   for(int i=0;i<numOfLabelsX;i++){
 455     vtkFloatingPointType val = bounds[2]+i*(bounds[3]-bounds[2])/(numOfLabelsY-1);
 456     YCoords->InsertNextValue(val);
 457   }
 458   // ZCoords coordinates for Z grid
 459   vtkFloatArray *ZCoords = vtkFloatArray::New();
 460   for(int i=0;i<numOfLabelsZ;i++){
 461     vtkFloatingPointType val = bounds[4]+i*(bounds[5]-bounds[4])/(numOfLabelsZ-1);
 462     ZCoords->InsertNextValue(val);
 463   }
 464
 465   vtkRectilinearGrid *rgrid = vtkRectilinearGrid::New();
 466   rgrid->SetDimensions(numOfLabelsX,numOfLabelsY,numOfLabelsZ);
 467   rgrid->SetXCoordinates(XCoords);
 468   rgrid->SetYCoordinates(YCoords);
 469   rgrid->SetZCoordinates(ZCoords);
 470
 471   this->planeXY->SetInput(rgrid);
 472   this->planeYZ->SetInput(rgrid);
 473   this->planeXZ->SetInput(rgrid);
 474
 475   rgrid->Delete();
 476
 477   vtkFloatingPointType aCPosition[3];
 478   vtkFloatingPointType aCDirection[3];
 479   this->Camera->GetPosition(aCPosition);
 480   this->Camera->GetDirectionOfProjection(aCDirection);
 481
 482   // culculate placement of XY
 483   bool replaceXY=false;
 484   bool replaceYZ=false;
 485   bool replaceXZ=false;
 486   vtkFloatingPointType p[6][3]; // centers of planes
 487   vtkFloatingPointType vecs[6][3]; // 6 vectors from camera position to centers
 488
 489   vtkFloatingPointType aMiddleX = (XCoords->GetValue(0) + XCoords->GetValue(numOfLabelsX-1))/2;
 490   vtkFloatingPointType aMiddleY = (YCoords->GetValue(0) + YCoords->GetValue(numOfLabelsY-1))/2;
 491   vtkFloatingPointType aMiddleZ = (ZCoords->GetValue(0) + ZCoords->GetValue(numOfLabelsZ-1))/2;
 492
 493   // plane XY
 494   p[0][0] = aMiddleX; // plane X=0.5 Y=0.5 Z=0
 495   p[0][1] = aMiddleY;
 496   p[0][2] = ZCoords->GetValue(0);
 497
 498   p[1][0] = aMiddleX; // plane X=0.5 Y=0.5 Z=1
 499   p[1][1] = aMiddleY;
 500   p[1][2] = ZCoords->GetValue(numOfLabelsZ-1);
 501
 502   // plane YZ
 503   p[2][0] = XCoords->GetValue(0); // plane X=0 Y=0.5 Z=0.5
 504   p[2][1] = aMiddleY;
 505   p[2][2] = aMiddleZ;
 506
 507   p[3][0] = XCoords->GetValue(numOfLabelsX-1);
 508   p[3][1] = aMiddleY;
 509   p[3][2] = aMiddleZ;
 510
 511   // plane XZ
 512   p[4][0] = aMiddleX; // plane X=0.5 Y=0 Z=0.5
 513   p[4][1] = YCoords->GetValue(0);
 514   p[4][2] = aMiddleZ;
 515
 516   p[5][0] = aMiddleX; // plane X=0.5 Y=1 Z=0.5
 517   p[5][1] = YCoords->GetValue(numOfLabelsY-1);
 518   p[5][2] = aMiddleZ;
 519
 520   for(int i=0;i<3;i++)
 521     for(int j=0;j<6;j++) vecs[j][i] = p[j][i] - aCPosition[i];
 522
 523   if ( vtkMath::Dot(vecs[0],aCDirection) < vtkMath::Dot(vecs[1],aCDirection))
 524     replaceXY = true;
 525   if ( vtkMath::Dot(vecs[2],aCDirection) < vtkMath::Dot(vecs[3],aCDirection))
 526     replaceYZ = true;
 527   if ( vtkMath::Dot(vecs[4],aCDirection) < vtkMath::Dot(vecs[5],aCDirection))
 528     replaceXZ = true;
 529
 530   if(replaceXY) this->planeXY->SetExtent(0,numOfLabelsX, 0,numOfLabelsY, numOfLabelsZ,numOfLabelsZ);
 531   else this->planeXY->SetExtent(0,numOfLabelsX, 0,numOfLabelsY, 0,0);
 532
 533   if(replaceYZ) this->planeYZ->SetExtent(numOfLabelsX,numOfLabelsX, 0,numOfLabelsY, 0,numOfLabelsZ);
 534   else this->planeYZ->SetExtent(0,0, 0,numOfLabelsY, 0,numOfLabelsZ);
 535
 536   if(replaceXZ) this->planeXZ->SetExtent(0,numOfLabelsX, numOfLabelsY,numOfLabelsY, 0,numOfLabelsZ);
 537   else this->planeXZ->SetExtent(0,numOfLabelsX, 0,0, 0,numOfLabelsZ);
 538
 539   XCoords->Delete();
 540   YCoords->Delete();
 541   ZCoords->Delete();
 542
 543   vtkFloatingPointType color[3];
 544
 545   this->GetProperty()->GetColor(color);
 546   this->wireActorXY->GetProperty()->SetColor(color);
 547   this->wireActorYZ->GetProperty()->SetColor(color);
 548   this->wireActorXZ->GetProperty()->SetColor(color);
 549
 550   /*
 551   // Rebuid text props
 552   // Perform shallow copy here since each individual axis can be
 553   // accessed through the class API (i.e. each individual axis text prop
 554   // can be changed). Therefore, we can not just assign pointers otherwise
 555   // each individual axis text prop would point to the same text prop.
 556
 557   if (this->AxisLabelTextProperty &&
 558       this->AxisLabelTextProperty->GetMTime() > this->BuildTime)
 559     {
 560     if (this->XAxis->GetLabelTextProperty())
 561       {
 562       this->XAxis->GetLabelTextProperty()->ShallowCopy(
 563         this->AxisLabelTextProperty);
 564       }
 565     if (this->YAxis->GetLabelTextProperty())
 566       {
 567       this->YAxis->GetLabelTextProperty()->ShallowCopy(
 568         this->AxisLabelTextProperty);
 569       }
 570     if (this->ZAxis->GetLabelTextProperty())
 571       {
 572       this->ZAxis->GetLabelTextProperty()->ShallowCopy(
 573         this->AxisLabelTextProperty);
 574       }
 575     }
 576
 577   if (this->AxisTitleTextProperty &&
 578       this->AxisTitleTextProperty->GetMTime() > this->BuildTime)
 579     {
 580     if (this->XAxis->GetLabelTextProperty())
 581       {
 582       this->XAxis->GetTitleTextProperty()->ShallowCopy(
 583         this->AxisTitleTextProperty);
 584       }
 585     if (this->YAxis->GetLabelTextProperty())
 586       {
 587       this->YAxis->GetTitleTextProperty()->ShallowCopy(
 588         this->AxisTitleTextProperty);
 589       }
 590     if (this->ZAxis->GetLabelTextProperty())
 591       {
 592       this->ZAxis->GetTitleTextProperty()->ShallowCopy(
 593         this->AxisTitleTextProperty);
 594       }
 595     }
 596   */
 597   this->BuildTime.Modified();
 598
 599   //Render the axes
 600   if ( this->XAxisVisibility )
 601   {
 602     renderedSomething += this->XAxis->RenderOpaqueGeometry(viewport);
 603   }
 604   if ( this->YAxisVisibility )
 605   {
 606     renderedSomething += this->YAxis->RenderOpaqueGeometry(viewport);
 607   }
 608   if ( this->ZAxisVisibility )
 609   {
 610     renderedSomething += this->ZAxis->RenderOpaqueGeometry(viewport);
 611   }
 612
 613   bool RX=false,RY=false;
 614   if (this->XAxisVisibility){
 615     this->wireActorXY->RenderOpaqueGeometry(viewport);
 616     this->wireActorXZ->RenderOpaqueGeometry(viewport);
 617     RX = true;
 618   }
 619   if (this->YAxisVisibility){
 620     if(!RX) this->wireActorXY->RenderOpaqueGeometry(viewport);
 621     this->wireActorYZ->RenderOpaqueGeometry(viewport);
 622     RY = true;
 623   }
 624   if (this->ZAxisVisibility){
 625     if(!RX) this->wireActorXZ->RenderOpaqueGeometry(viewport);
 626     if(!RY) this->wireActorYZ->RenderOpaqueGeometry(viewport);
 627   }
 628
 629   return renderedSomething;
 630 }
 631
 632 // Release any graphics resources that are being consumed by this actor.
 633 // The parameter window could be used to determine which graphic
 634 // resources to release.
 635 void SVTK_CubeAxesActor2D::ReleaseGraphicsResources(vtkWindow *win)
 636 {
 637   this->XAxis->ReleaseGraphicsResources(win);
 638   this->YAxis->ReleaseGraphicsResources(win);
 639   this->ZAxis->ReleaseGraphicsResources(win);
 640
 641   this->wireActorXY->ReleaseGraphicsResources(win);
 642   this->wireActorYZ->ReleaseGraphicsResources(win);
 643   this->wireActorXZ->ReleaseGraphicsResources(win);
 644 }
 645
 646 void SVTK_CubeAxesActor2D::SetTransform(VTKViewer_Transform* theTransform){
 647   this->m_Transform = theTransform;
 648 }
 649
 650 VTKViewer_Transform* SVTK_CubeAxesActor2D::GetTransform(){
 651   return (this->m_Transform.GetPointer());
 652 }