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0006909

VTK

(No Category)

public

2008-04-26 00:24

2013-04-05 19:57

Reporter

Patrick Emond

Assigned To

dean

Priority

normal

Severity

major

Reproducibility

always

Status

closed

Resolution

fixed

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OS Version

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Fixed in Version

Summary

0006909: vtkPointHandleRepresentation2D SetDisplayPosition() bug

Description

I've recently struggled with using vtkPointHandleRepresentation2D as the handle representation when using vtkSeedWidget along with a vtkImageActorPointPlacer. The problem has been that any seeds placed stay in the same display position when moving the underlying image (zooming, panning, etc).

After a long while trying to figure out why the handles were doing this I found a solution was to immediately set the world position after a point is placed, using the display position of the point. So for instance, the problem is fixed if I add the following to the end of vtkPointHandleRepresentation2D::SetDisplayPosition()

double v[4];
if( this->Renderer )
  {
  vtkInteractorObserver::ComputeDisplayToWorld(
    this->Renderer, p[0], p[1], p[2], w);
  this->SetWorldPosition(w);
  }

So is the current behavior desired, or is this a bug? And if it is a bug, does the above code fix it without breaking anything else?

Additional Information

Behavior identical on Linux (Ubuntu 64-bit) and Windows XP.

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Notes
(0011568) dean (developer) 2008-04-28 10:49	fixed using suggested patch, no testing issues using MS VS 2005 express, shared release build on Vista OS

Issue History
Date Modified	Username	Field	Change
2008-04-26 00:24	Patrick Emond	New Issue
2008-04-28 10:49	dean	Note Added: 0011568
2008-04-28 10:50	dean	Status	backlog => @80@
2008-04-28 10:50	dean	Resolution	open => fixed
2008-04-28 10:50	dean	Assigned To	=> dean
2011-06-16 13:11	Zack Galbreath	Category	=> (No Category)
2013-04-05 19:57	Berk Geveci	Status	customer review => closed