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IDProjectCategoryView StatusDate SubmittedLast Update
0012799VTK(No Category)public2011-12-16 05:472016-08-12 09:55
Reportertomasz 
Assigned ToDave DeMarle 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version5.6.1 
Target VersionFixed in Version 
Summary0012799: VRML Exporter disregards UseLookupTableScalarRangeOn on LookupTables
DescriptionIn its (internal) PolyDataMapper the exporter "copies" ScalarRange from the actor (Get/Set), disregarding UseLookupTableScalarRangeOn if such done.
As a result the lookup table (colors) gets reset to the defaout range 0..1.
Remark: I do not now if "by design" the GetScalarRange shall (only) return what has been "Sat" (diregarding UseLookupTableScalarRangeOn) OR if any Exporter shall check UseLookupTableScalarRangeOn and go the other (now missing) way.

My Code:
contourMapper.ScalarVisibilityOn();
contourMapper.SetLookupTable(_LookupTable);
contourMapper.UseLookupTableScalarRangeOn(); // otherwise Mapper overwites lut range!

and in vtkVRMLExporter:
  pm = vtkPolyDataMapper::New();
  pm->SetInput(pd);
  pm->SetScalarRange(anActor->GetMapper()->GetScalarRange()); <================??????
  pm->SetScalarVisibility(anActor->GetMapper()->GetScalarVisibility());
  pm->SetLookupTable(anActor->GetMapper()->GetLookupTable());
  pm->SetScalarMode(anActor->GetMapper()->GetScalarMode());

i.e. no check if UseLookupTableScalarRangeOn used instead
TagsNo tags attached.
ProjectTBD
Typeincorrect functionality
Attached Files

 Relationships

  Notes
(0027825)
tomasz (reporter)
2011-12-16 06:03

 Seems the ALL exporters miss the copy:
   pm->SetUseLookupTableScalarRange(m->GetUseLookupTableScalarRange());
an more!
Looking at vtkMapper::ShallowCopy:
    this->SetLookupTable(m->GetLookupTable());
    this->SetScalarVisibility(m->GetScalarVisibility());
    this->SetScalarRange(m->GetScalarRange());
    this->SetColorMode(m->GetColorMode());
    this->SetScalarMode(m->GetScalarMode());
    this->SetScalarMaterialMode(m->GetScalarMaterialMode());
    this->SetImmediateModeRendering(m->GetImmediateModeRendering());
    this->SetUseLookupTableScalarRange(m->GetUseLookupTableScalarRange());<====

Think adding at least
pm->SetUseLookupTableScalarRange(m->GetUseLookupTableScalarRange());
in each exporter
would immediately fix it (i'm not involved in VTK project itself, so please fix it).
Kind Regards, Tomasz.
(0031176)
Dave DeMarle (administrator)
2013-07-22 16:54

 Please reopen this report if the bug is still present in 6.0.0.
(0037262)
Kitware Robot (administrator)
2016-08-12 09:55

 Resolving issue as `moved`.

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 Issue History
Date Modified Username Field Change
2011-12-16 05:47 tomasz New Issue
2011-12-16 06:03 tomasz Note Added: 0027825
2013-07-22 16:54 Dave DeMarle Note Added: 0031176
2013-07-22 16:54 Dave DeMarle Status backlog => expired
2013-07-22 16:54 Dave DeMarle Assigned To => Dave DeMarle
2016-08-12 09:55 Kitware Robot Note Added: 0037262
2016-08-12 09:55 Kitware Robot Status expired => closed
2016-08-12 09:55 Kitware Robot Resolution open => moved

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