[IGSTK-Users] FW: Cross Hairs Problem

[Ashwath Hegde, ERS-HCLTech]

Hi All,

The problem is fixed.Thanks a lot.

In igstkCrossHairObjectRepresentation.cxx I did the following changes.Earlier I had done changes only for lineMapperX.
Now I did for all the three X,Y,Z and it works fine.

lineMapperX->SetResolveCoincidentTopologyPolygonOffsetParameters(0.5,0.5);
lineMapperY->SetResolveCoincidentTopologyPolygonOffsetParameters(0.5,0.5);
lineMapperZ->SetResolveCoincidentTopologyPolygonOffsetParameters(0.5,0.5);


Thanks a lot for the help.
Regards,
Ashwath.

From: Ashwath Hegde, ERS-HCLTech
Sent: Thursday, July 28, 2011 10:18 AM
To: Vincent Gratsac; Patrick Cheng; sebastian ordas
Subject: Cross Hairs Problem.

Hi All,

I tried the fix mentioned below,

lineMapperX->SetResolveCoincidentTopologyPolygonOffsetParameters(0.5,0.5);

but the problem is still present.

I remove the cross hairs from the 2D Views by using the below code.

m_CrossHair->RequestDetachFromParent();
m_view2DAxial->RequestRemoveObject(m_AxialCrossHairRepresentation);

After that  when I keep clicking  on the 2D View my 3D image disappears.
I am using the below lines of code for 3D image display.

typedef igstk::ImageSpatialObjectVolumeRepresentation<igstk::CTImageSpatialObject>VolumeRepresentationType;
VolumeRepresentationType::Pointer   m_ImageRepresentation3D;
m_ImageRepresentation3D = VolumeRepresentationType::New();
m_ImageRepresentation3D->RequestSetImageSpatialObject(m_ImageSpatialObject);

Is there anything I could do to solve this problem.

Your help is much appreciated.

Thanking in advance,
Ashwath.


From: igstk-users-bounces at public.kitware.com<mailto:igstk-users-bounces at public.kitware.com> [mailto:igstk-users-bounces at public.kitware.com]<mailto:[mailto:igstk-users-bounces at public.kitware.com]> On Behalf Of Vincent Gratsac
Sent: Monday, July 04, 2011 2:24 PM
To: igstk-users at public.kitware.com<mailto:igstk-users at public.kitware.com>
Subject: Re: [IGSTK-Users] Cross Hairs.

Hi,

We found a workaround probably related to your problem :

igstkCrossHairObjectRepresentation.cxx, line 302
  lineMapperX->SetResolveCoincidentTopologyPolygonOffsetParameters(0.5,0.5);

This solves the reslice issue we encountered a few months ago (http://www.cmake.org/pipermail/igstk-users/2011-March/001081.html).

I hope this will help !
Best regards,

Vincent


Le 23/06/2011 11:35, Ashwath Hegde, ERS-HCLTech a écrit :
Hi All,

Is there a problem with igstk::CrossHairObjectRepresentation
class in IGSTK4.2 ad 4.4 because I am facing some display problems because of that.

I remove the cross hairs from the view by using the below codes:

m_CrossHair->RequestDetachFromParent();
m_view2DAxial->RequestRemoveObject(m_AxialCrossHairRepresentation);

And try to draw a small ellipse at clicked point on the Axial view.
But it appears on some other slice and not on the current slice.

Has anybody faced such problems before.

I found at below link about the cross hair related display problems in IGSTK 4.2 and 4.4.

http://www.cmake.org/pipermail/igstk-users/2011-March/001081.html

Is my problem because of the above  issue in crosshair related classes  in IGSTK.

Please suggest me something on this.

Thanking in advance,
Ashwath.

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