vv/vvGlyphSource.cxx

   1 /*=========================================================================
   2   Program:   vv                     http://www.creatis.insa-lyon.fr/rio/vv
   3
   4   Authors belong to:
   5   - University of LYON              http://www.universite-lyon.fr/
   6   - Léon Bérard cancer center       http://oncora1.lyon.fnclcc.fr
   7   - CREATIS CNRS laboratory         http://www.creatis.insa-lyon.fr
   8
   9   This software is distributed WITHOUT ANY WARRANTY; without even
  10   the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  11   PURPOSE.  See the copyright notices for more information.
  12
  13   It is distributed under dual licence
  14
  15   - BSD        See included LICENSE.txt file
  16   - CeCILL-B   http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
  17 ======================================================================-====*/
  18 #include "vvGlyphSource.h"
  19
  20 #include "vtkCellArray.h"
  21 #include "vtkCellData.h"
  22 #include "vtkMath.h"
  23 #include "vtkInformation.h"
  24 #include "vtkInformationVector.h"
  25 #include "vtkObjectFactory.h"
  26 #include "vtkPolyData.h"
  27 #include "vtkUnsignedCharArray.h"
  28
  29 vtkCxxRevisionMacro(vvGlyphSource, "DummyRevision");
  30 vtkStandardNewMacro(vvGlyphSource);
  31
  32
  33 //----------------------------------------------------------------------------
  34 int vvGlyphSource::RequestData(
  35   vtkInformation *vtkNotUsed(request),
  36   vtkInformationVector **vtkNotUsed(inputVector),
  37   vtkInformationVector *outputVector)
  38 {
  39   // get the info object
  40   vtkInformation *outInfo = outputVector->GetInformationObject(0);
  41
  42   // get the ouptut
  43   vtkPolyData *output = vtkPolyData::SafeDownCast(
  44                           outInfo->Get(vtkDataObject::DATA_OBJECT()));
  45
  46   //Allocate storage
  47   vtkPoints *pts = vtkPoints::New();
  48   pts->Allocate(6,6);
  49   vtkCellArray *verts = vtkCellArray::New();
  50   verts->Allocate(verts->EstimateSize(1,1),1);
  51   vtkCellArray *lines = vtkCellArray::New();
  52   lines->Allocate(lines->EstimateSize(4,2),2);
  53   vtkCellArray *polys = vtkCellArray::New();
  54   polys->Allocate(polys->EstimateSize(1,4),4);
  55   vtkUnsignedCharArray *colors = vtkUnsignedCharArray::New();
  56   colors->SetNumberOfComponents(3);
  57   colors->Allocate(2,2);
  58
  59   this->ConvertColor();
  60
  61   //Special options
  62   if ( this->Dash ) {
  63     int filled = this->Filled;
  64     this->Filled = 0;
  65     this->CreateDash(pts,lines,polys,colors,this->Scale2);
  66     this->Filled = filled;
  67   }
  68   if ( this->Cross ) {
  69     int filled = this->Filled;
  70     this->Filled = 0;
  71     this->CreateCross(pts,lines,polys,colors,this->Scale2);
  72     this->Filled = filled;
  73   }
  74
  75   //Call the right function
  76   switch (this->GlyphType) {
  77   case VTK_NO_GLYPH:
  78     break;
  79   case VTK_VERTEX_GLYPH:
  80     this->CreateVertex(pts,verts,colors);
  81     break;
  82   case VTK_DASH_GLYPH:
  83     this->CreateDash(pts,lines,polys,colors,this->Scale);
  84     break;
  85   case VTK_CROSS_GLYPH:
  86     this->CreateCross(pts,lines,polys,colors,this->Scale);
  87     break;
  88   case VTK_THICKCROSS_GLYPH:
  89     this->CreateThickCross(pts,lines,polys,colors);
  90     break;
  91   case VTK_TRIANGLE_GLYPH:
  92     this->CreateTriangle(pts,lines,polys,colors);
  93     break;
  94   case VTK_SQUARE_GLYPH:
  95     this->CreateSquare(pts,lines,polys,colors);
  96     break;
  97   case VTK_CIRCLE_GLYPH:
  98     this->CreateCircle(pts,lines,polys,colors);
  99     break;
 100   case VTK_DIAMOND_GLYPH:
 101     this->CreateDiamond(pts,lines,polys,colors);
 102     break;
 103   case VTK_ARROW_GLYPH:
 104     this->CreateArrow(pts,lines,polys,colors);
 105     break;
 106   case VTK_THICKARROW_GLYPH:
 107     this->CreateThickArrow(pts,lines,polys,colors);
 108     break;
 109   case VTK_HOOKEDARROW_GLYPH:
 110     this->CreateHookedArrow(pts,lines,polys,colors);
 111     break;
 112   case VTK_EDGEARROW_GLYPH:
 113     this->CreateEdgeArrow(pts,lines,polys,colors);
 114     break;
 115   case VTK_SPECIFICARROW_GLYPH:
 116     this->CreateSpecificArrow(pts,lines,polys,colors);
 117     break;
 118   }
 119
 120   this->TransformGlyph(pts);
 121
 122   //Clean up
 123   output->SetPoints(pts);
 124   pts->Delete();
 125
 126   output->SetVerts(verts);
 127   verts->Delete();
 128
 129   output->SetLines(lines);
 130   lines->Delete();
 131
 132   output->SetPolys(polys);
 133   polys->Delete();
 134
 135   output->GetCellData()->SetScalars(colors);
 136   colors->Delete();
 137
 138   return 1;
 139 }
 140
 141 void vvGlyphSource::CreateSpecificArrow(vtkPoints *pts, vtkCellArray *lines,
 142                                         vtkCellArray *polys, vtkUnsignedCharArray *colors)
 143 {
 144   //stem
 145   vtkIdType ptIds[3];
 146   ptIds[0] = pts->InsertNextPoint( 0.0, 0.0, 0.0);
 147   ptIds[1] = pts->InsertNextPoint(  1.0, 0.0, 0.0);
 148   lines->InsertNextCell(2,ptIds);
 149   colors->InsertNextValue(0);
 150   colors->InsertNextValue(0);
 151   colors->InsertNextValue(1);
 152
 153   //arrow head
 154   ptIds[0] = pts->InsertNextPoint( 0.7, -0.1, 0.0);
 155   ptIds[1] = pts->InsertNextPoint( 1.0,  0.0, 0.0);
 156   ptIds[2] = pts->InsertNextPoint( 0.7,  0.1, 0.0);
 157   lines->InsertNextCell(3,ptIds);
 158   colors->InsertNextValue(0);
 159   colors->InsertNextValue(1);
 160   colors->InsertNextValue(0);
 161 }
 162
 163 void vvGlyphSource::PrintSelf(ostream& os, vtkIndent indent)
 164 {
 165   this->Superclass::PrintSelf(os, indent);
 166 }