1 /*=========================================================================
2 Program: vv http://www.creatis.insa-lyon.fr/rio/vv
5 - University of LYON http://www.universite-lyon.fr/
6 - Léon Bérard cancer center http://www.centreleonberard.fr
7 - CREATIS CNRS laboratory http://www.creatis.insa-lyon.fr
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.
13 It is distributed under dual licence
15 - BSD See included LICENSE.txt file
16 - CeCILL-B http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
17 ===========================================================================**/
18 #include "vvGlyph2D.h"
20 #include <vtkVersion.h>
22 #include "vtkDataSet.h"
23 #include "vtkFloatArray.h"
24 #include "vtkIdList.h"
25 #include "vtkIdTypeArray.h"
26 #include "vtkInformation.h"
27 #include "vtkInformationVector.h"
29 #include "vtkObjectFactory.h"
30 #include "vtkPointData.h"
31 #include "vtkPolyData.h"
32 #include "vtkStreamingDemandDrivenPipeline.h"
33 #include "vtkTransform.h"
34 #include "vtkUnsignedCharArray.h"
36 vtkStandardNewMacro(vvGlyph2D);
38 vvGlyph2D::vvGlyph2D()
46 //----------------------------------------------------------------------------
47 int vvGlyph2D::RequestData(
48 vtkInformation *vtkNotUsed(request),
49 vtkInformationVector **inputVector,
50 vtkInformationVector *outputVector)
52 // get the info objects
53 vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
54 vtkInformation *outInfo = outputVector->GetInformationObject(0);
56 // get the input and ouptut
57 vtkDataSet *input = vtkDataSet::SafeDownCast(
58 inInfo->Get(vtkDataObject::DATA_OBJECT()));
59 vtkPolyData *output = vtkPolyData::SafeDownCast(
60 outInfo->Get(vtkDataObject::DATA_OBJECT()));
63 vtkDataArray *inSScalars; // Scalars for Scaling
64 vtkDataArray *inCScalars; // Scalars for Coloring
65 vtkDataArray *inVectors;
66 int requestedGhostLevel;
67 unsigned char* inGhostLevels=0;
68 vtkDataArray *inNormals, *sourceNormals = NULL;
69 vtkDataArray *sourceTCoords = NULL;
70 vtkIdType numPts, numSourcePts, numSourceCells, inPtId, i;
72 vtkPoints *sourcePts = NULL;
74 vtkDataArray *newScalars=NULL;
75 vtkDataArray *newVectors=NULL;
76 vtkDataArray *newNormals=NULL;
77 vtkDataArray *newTCoords = NULL;
78 double x[3], v[3], vNew[3], s = 0.0, vMag = 0.0, value, tc[3];
79 vtkTransform *trans = vtkTransform::New();
84 vtkIdType ptIncr, cellId;
85 int haveVectors, haveNormals, haveTCoords = 0;
86 double scalex,scaley,scalez, den;
87 vtkPointData *outputPD = output->GetPointData();
88 int numberOfSources = this->GetNumberOfInputConnections(1);
89 vtkPolyData *defaultSource = NULL;
90 vtkIdTypeArray *pointIds=0;
91 vtkPolyData *source = 0;
93 vtkDebugMacro(<<"Generating glyphs");
95 pts = vtkIdList::New();
96 pts->Allocate(VTK_CELL_SIZE);
98 pd = input->GetPointData();
99 inSScalars = this->GetInputArrayToProcess(0,inputVector);
100 inVectors = this->GetInputArrayToProcess(1,inputVector);
101 inNormals = this->GetInputArrayToProcess(2,inputVector);
102 inCScalars = this->GetInputArrayToProcess(3,inputVector);
103 if (inCScalars == NULL) {
104 inCScalars = inSScalars;
107 vtkDataArray* temp = 0;
109 temp = pd->GetArray("vtkGhostLevels");
111 if ( (!temp) || (temp->GetDataType() != VTK_UNSIGNED_CHAR)
112 || (temp->GetNumberOfComponents() != 1)) {
113 vtkDebugMacro("No appropriate ghost levels field available.");
115 inGhostLevels = ((vtkUnsignedCharArray*)temp)->GetPointer(0);
118 requestedGhostLevel =
119 outInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_GHOST_LEVELS());
121 numPts = input->GetNumberOfPoints();
123 vtkDebugMacro(<<"No points to glyph!");
129 // Check input for consistency
131 if ( (den = this->Range[1] - this->Range[0]) == 0.0 ) {
134 if ( this->VectorMode != VTK_VECTOR_ROTATION_OFF &&
135 ((this->VectorMode == VTK_USE_VECTOR && inVectors != NULL) ||
136 (this->VectorMode == VTK_USE_NORMAL && inNormals != NULL)) ) {
142 if ( (this->IndexMode == VTK_INDEXING_BY_SCALAR && !inSScalars) ||
143 (this->IndexMode == VTK_INDEXING_BY_VECTOR &&
144 ((!inVectors && this->VectorMode == VTK_USE_VECTOR) ||
145 (!inNormals && this->VectorMode == VTK_USE_NORMAL))) ) {
146 if ( this->GetSource(0, inputVector[1]) == NULL ) {
147 vtkErrorMacro(<<"Indexing on but don't have data to index with");
152 vtkWarningMacro(<<"Turning indexing off: no data to index with");
153 this->IndexMode = VTK_INDEXING_OFF;
157 // Allocate storage for output PolyData
159 outputPD->CopyVectorsOff();
160 outputPD->CopyNormalsOff();
161 outputPD->CopyTCoordsOff();
163 if (!this->GetSource(0, inputVector[1])) {
164 defaultSource = vtkPolyData::New();
165 defaultSource->Allocate();
166 vtkPoints *defaultPoints = vtkPoints::New();
167 defaultPoints->Allocate(6);
168 defaultPoints->InsertNextPoint(0, 0, 0);
169 defaultPoints->InsertNextPoint(1, 0, 0);
170 vtkIdType defaultPointIds[2];
171 defaultPointIds[0] = 0;
172 defaultPointIds[1] = 1;
173 defaultSource->SetPoints(defaultPoints);
174 defaultSource->InsertNextCell(VTK_LINE, 2, defaultPointIds);
175 #if VTK_MAJOR_VERSION <= 5
176 defaultSource->SetUpdateExtent(0, 1, 0);
177 this->SetSource(defaultSource);
179 this->SetUpdateExtent(0, 1, 0);
180 this->SetSourceData(defaultSource);
182 defaultSource->Delete();
183 defaultSource = NULL;
184 defaultPoints->Delete();
185 defaultPoints = NULL;
188 if ( this->IndexMode != VTK_INDEXING_OFF ) {
191 for (numSourcePts=numSourceCells=i=0; i < numberOfSources; i++) {
192 source = this->GetSource(i, inputVector[1]);
193 if ( source != NULL ) {
194 if (source->GetNumberOfPoints() > numSourcePts) {
195 numSourcePts = source->GetNumberOfPoints();
197 if (source->GetNumberOfCells() > numSourceCells) {
198 numSourceCells = source->GetNumberOfCells();
200 if ( !(sourceNormals = source->GetPointData()->GetNormals()) ) {
206 source = this->GetSource(0, inputVector[1]);
207 sourcePts = source->GetPoints();
208 numSourcePts = sourcePts->GetNumberOfPoints();
209 numSourceCells = source->GetNumberOfCells();
211 sourceNormals = source->GetPointData()->GetNormals();
212 if ( sourceNormals ) {
218 sourceTCoords = source->GetPointData()->GetTCoords();
225 // Prepare to copy output.
226 pd = input->GetPointData();
227 outputPD->CopyAllocate(pd,numPts*numSourcePts);
230 newPts = vtkPoints::New();
231 newPts->Allocate(numPts*numSourcePts);
232 if ( this->GeneratePointIds ) {
233 pointIds = vtkIdTypeArray::New();
234 pointIds->SetName(this->PointIdsName);
235 pointIds->Allocate(numPts*numSourcePts);
236 outputPD->AddArray(pointIds);
239 if ( this->ColorMode == VTK_COLOR_BY_SCALAR && inCScalars ) {
240 newScalars = inCScalars->NewInstance();
241 newScalars->SetNumberOfComponents(inCScalars->GetNumberOfComponents());
242 newScalars->Allocate(inCScalars->GetNumberOfComponents()*numPts*numSourcePts);
243 newScalars->SetName(inCScalars->GetName());
244 } else if ( (this->ColorMode == VTK_COLOR_BY_SCALE) && inSScalars) {
245 newScalars = vtkFloatArray::New();
246 newScalars->Allocate(numPts*numSourcePts);
247 newScalars->SetName("GlyphScale");
248 if (this->ScaleMode == VTK_SCALE_BY_SCALAR) {
249 newScalars->SetName(inSScalars->GetName());
251 } else if ( (this->ColorMode == VTK_COLOR_BY_VECTOR) && haveVectors) {
252 newScalars = vtkFloatArray::New();
253 newScalars->Allocate(numPts*numSourcePts);
254 newScalars->SetName("VectorMagnitude");
257 newVectors = vtkFloatArray::New();
258 newVectors->SetNumberOfComponents(3);
259 newVectors->Allocate(3*numPts*numSourcePts);
260 newVectors->SetName("GlyphVector");
263 newNormals = vtkFloatArray::New();
264 newNormals->SetNumberOfComponents(3);
265 newNormals->Allocate(3*numPts*numSourcePts);
266 newNormals->SetName("Normals");
269 newTCoords = vtkFloatArray::New();
270 int numComps = sourceTCoords->GetNumberOfComponents();
271 newTCoords->SetNumberOfComponents(numComps);
272 newTCoords->Allocate(numComps*numPts*numSourcePts);
273 newTCoords->SetName("TCoords");
276 // Setting up for calls to PolyData::InsertNextCell()
277 if (this->IndexMode != VTK_INDEXING_OFF ) {
278 output->Allocate(3*numPts*numSourceCells,numPts*numSourceCells);
280 output->Allocate(this->GetSource(0, inputVector[1]),
281 3*numPts*numSourceCells, numPts*numSourceCells);
284 // Traverse all Input points, transforming Source points and copying
288 for (inPtId=0; inPtId < numPts; inPtId++) {
289 scalex = scaley = scalez = 1.0;
290 if ( ! (inPtId % 10000) ) {
291 this->UpdateProgress ((double)inPtId/numPts);
292 if (this->GetAbortExecute()) {
297 // Get the scalar and vector data
299 s = inSScalars->GetComponent(inPtId, 0);
300 if ( this->ScaleMode == VTK_SCALE_BY_SCALAR ||
301 this->ScaleMode == VTK_DATA_SCALING_OFF ) {
302 scalex = scaley = scalez = s;
307 if ( this->VectorMode == VTK_USE_NORMAL ) {
308 inNormals->GetTuple(inPtId, v);
310 inVectors->GetTuple(inPtId, v);
313 vMag = vtkMath::Norm(v);
314 if ( this->ScaleMode == VTK_SCALE_BY_VECTORCOMPONENTS ) {
318 } else if ( this->ScaleMode == VTK_SCALE_BY_VECTOR ) {
319 scalex = scaley = scalez = vMag;
323 // Clamp data scale if enabled
324 if ( this->Clamping ) {
325 scalex = (scalex < this->Range[0] ? this->Range[0] :
326 (scalex > this->Range[1] ? this->Range[1] : scalex));
327 scalex = (scalex - this->Range[0]) / den;
328 scaley = (scaley < this->Range[0] ? this->Range[0] :
329 (scaley > this->Range[1] ? this->Range[1] : scaley));
330 scaley = (scaley - this->Range[0]) / den;
331 scalez = (scalez < this->Range[0] ? this->Range[0] :
332 (scalez > this->Range[1] ? this->Range[1] : scalez));
333 scalez = (scalez - this->Range[0]) / den;
336 // Compute index into table of glyphs
337 if ( this->IndexMode == VTK_INDEXING_OFF ) {
340 if ( this->IndexMode == VTK_INDEXING_BY_SCALAR ) {
346 index = (int) ((double)(value - this->Range[0]) * numberOfSources / den);
347 index = (index < 0 ? 0 :
348 (index >= numberOfSources ? (numberOfSources-1) : index));
350 source = this->GetSource(index, inputVector[1]);
351 if ( source != NULL ) {
352 sourcePts = source->GetPoints();
353 sourceNormals = source->GetPointData()->GetNormals();
354 numSourcePts = sourcePts->GetNumberOfPoints();
355 numSourceCells = source->GetNumberOfCells();
359 // Make sure we're not indexing into empty glyph
360 if ( this->GetSource(index, inputVector[1]) == NULL ) {
364 // Check ghost points.
365 // If we are processing a piece, we do not want to duplicate
366 // glyphs on the borders. The corrct check here is:
367 // ghostLevel > 0. I am leaving this over glyphing here because
368 // it make a nice example (sphereGhost.tcl) to show the
369 // point ghost levels with the glyph filter. I am not certain
370 // of the usefullness of point ghost levels over 1, but I will have
371 // to think about it.
372 if (inGhostLevels && inGhostLevels[inPtId] > requestedGhostLevel) {
376 if (!this->IsPointVisible(input, inPtId)) {
380 // Now begin copying/transforming glyph
383 // Copy all topology (transformation independent)
384 for (cellId=0; cellId < numSourceCells; cellId++) {
385 cell = this->GetSource(index, inputVector[1])->GetCell(cellId);
386 cellPts = cell->GetPointIds();
387 npts = cellPts->GetNumberOfIds();
388 for (pts->Reset(), i=0; i < npts; i++) {
389 pts->InsertId(i,cellPts->GetId(i) + ptIncr);
391 output->InsertNextCell(cell->GetCellType(),pts);
394 // translate Source to Input point
395 input->GetPoint(inPtId, x);
397 //projection on the plane orthogonale to the camera
398 trans->Scale(mOrientation[0],mOrientation[1],mOrientation[2]);
400 trans->Translate(x[0], x[1], x[2]);
404 for (i=0; i < numSourcePts; i++) {
405 newVectors->InsertTuple(i+ptIncr, v);
407 if (this->Orient && (vMag > 0.0)) {
408 // if there is no y or z component
409 if ( v[1] == 0.0 && v[2] == 0.0 ) {
410 if (v[0] < 0) { //just flip x if we need to
411 trans->RotateWXYZ(180.0,0,1,0);
414 vNew[0] = (v[0]+vMag) / 2.0;
415 vNew[1] = v[1] / 2.0;
416 vNew[2] = v[2] / 2.0;
417 trans->RotateWXYZ((double)180.0,vNew[0],vNew[1],vNew[2]);
423 for (i = 0; i < numSourcePts; i++) {
424 sourceTCoords->GetTuple(i, tc);
425 newTCoords->InsertTuple(i+ptIncr, tc);
429 // determine scale factor from scalars if appropriate
431 if (inSScalars && (this->ColorMode == VTK_COLOR_BY_SCALE)) {
432 for (i=0; i < numSourcePts; i++) {
433 newScalars->InsertTuple(i+ptIncr, &scalex); // = scaley = scalez
435 } else if (inCScalars && (this->ColorMode == VTK_COLOR_BY_SCALAR)) {
436 for (i=0; i < numSourcePts; i++) {
437 outputPD->CopyTuple(inCScalars, newScalars, inPtId, ptIncr+i);
440 if (haveVectors && this->ColorMode == VTK_COLOR_BY_VECTOR) {
442 for (i=0; i < numSourcePts; i++) {
443 newScalars->InsertTuple(i+ptIncr, &color);
447 // scale data if appropriate
448 if ( this->Scaling ) {
449 if ( this->ScaleMode == VTK_DATA_SCALING_OFF ) {
450 scalex = scaley = scalez = this->ScaleFactor;
452 scalex *= this->ScaleFactor;
453 scaley *= this->ScaleFactor;
454 scalez *= this->ScaleFactor;
457 if ( scalex == 0.0 ) {
460 if ( scaley == 0.0 ) {
463 if ( scalez == 0.0 ) {
466 trans->Scale(scalex,scaley,scalez);
468 // multiply points and normals by resulting matrix
469 trans->TransformPoints(sourcePts,newPts);
472 trans->TransformNormals(sourceNormals,newNormals);
475 // Copy point data from source (if possible)
477 for (i=0; i < numSourcePts; i++) {
478 outputPD->CopyData(pd,inPtId,ptIncr+i);
482 // If point ids are to be generated, do it here
483 if ( this->GeneratePointIds ) {
484 for (i=0; i < numSourcePts; i++) {
485 pointIds->InsertNextValue(inPtId);
489 ptIncr += numSourcePts;
492 // Update ourselves and release memory
494 output->SetPoints(newPts);
498 int idx = outputPD->AddArray(newScalars);
499 outputPD->SetActiveAttribute(idx, vtkDataSetAttributes::SCALARS);
500 newScalars->Delete();
504 outputPD->SetVectors(newVectors);
505 newVectors->Delete();
509 outputPD->SetNormals(newNormals);
510 newNormals->Delete();
514 outputPD->SetTCoords(newTCoords);
515 newTCoords->Delete();
525 void vvGlyph2D::PrintSelf(ostream& os, vtkIndent indent)
527 this->Superclass::PrintSelf(os,indent);
530 void vvGlyph2D::SetOrientation(int x, int y, int z)
533 mOrientation[0] = 1.0e-10;
535 mOrientation[0] = 1.0;
537 mOrientation[1] = 1.0e-10;
539 mOrientation[1] = 1.0;
541 mOrientation[2] = 1.0e-10;
543 mOrientation[2] = 1.0;