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IDProjectCategoryView StatusDate SubmittedLast Update
0009310IGSTKIGSTKpublic2009-07-24 10:502009-07-24 10:53
ReporterPatrick Cheng 
Assigned ToPatrick Cheng 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionfixed 
PlatformAllOSAllOS VersionAll
Summary0009310: Ellipsoid object renderred in incorrect size
DescriptionHi Jake,

You are right. The problem is that the default "Size" of the
m_EllipsoidSource is 0.5

We need to set it to be 1, if we consider the scale factors to be radius not diameter.

The fix should be:
m_EllipsoidSource->SetSize( 1.0 );
m_EllipsoidSource->SetScale( radius[0], radius[1], radius[2] );

Thank you for reporting this.

Patrick

Jake McIvor wrote:
> I think I found it:
>
> In the UpdateRepresentationProcessing and SetEllipsoidObjectProcessing
> methods, the scale of the vtkSuperquadricSource is updated:
>
> EllipsoidObjectType::ArrayType radius = m_EllipsoidObject->GetRadius();
> m_EllipsoidSource->SetScale( radius[0], radius[1], radius[2] );
>
> The second line should read:
> m_EllipsoidSource->SetScale( 2*radius[0], 2*radius[1], 2*radius[2] );
>
> Does that make sense, or am I confusing the use of the setRadius method?
>
> -Jake
Steps To Reproduce      igstk::EllipsoidObject::Pointer sphere1 = igstk::EllipsoidObject::New();
       sphere1->SetRadius( 10,10,10 );

       igstk::EllipsoidObjectRepresentation::Pointer sphere1rep =
            igstk::EllipsoidObjectRepresentation::New();
       sphere1rep->RequestSetEllipsoidObject( sphere1 );
       sphere1rep->SetColor( 1.0,0.0,0.0 );
       sphere1rep->SetOpacity( 0.9 );

       igstk::EllipsoidObject::Pointer sphere2 = igstk::EllipsoidObject::New();
       sphere2->SetRadius(10,10,10);

       igstk::EllipsoidObjectRepresentation::Pointer sphere2rep =
           igstk::EllipsoidObjectRepresentation::New();
       sphere2rep->RequestSetEllipsoidObject( sphere2 );
       sphere2rep->SetColor( 0.0,0.0,1.0 );
       sphere2rep->SetOpacity( 0.9 );

       igstk::Transform identity;
       identity.SetToIdentity(igstk::TimeStamp::GetLongestPossibleTime());
       igstk::Transform transform;
       igstk::Transform::VectorType translation;
       igstk::Transform::VersorType rotation;
       translation[0] = 20.0;
       translation[1] = 0.0;
       translation[2] = 0.0;
       rotation.Set( 0.0, 0.0, 0.0, 1.0 );
       igstk::Transform::ErrorType errorValue = 0;

       transform.SetTranslationAndRotation(
           translation, rotation, errorValue,
           igstk::TimeStamp::GetLongestPossibleTime() );

       sphere1->RequestSetTransformAndParent( identity, m_View );
       sphere2->RequestSetTransformAndParent( transform, m_View );

       m_View->RequestAddObject( sphere1rep );
       m_View->RequestAddObject( sphere2rep );
Additional InformationIGSTK uses vtkSuperquadricSource to generate graphics primitive for visualization
TagsNo tags attached.
Attached Files

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  Notes
(0016957)
Patrick Cheng (developer)
2009-07-24 10:51

 Verified.
(0016958)
Patrick Cheng (developer)
2009-07-24 10:52

 Add this line to change the default "Size" of the vtkSuperquadricSource to 1. m_EllipsoidSource->SetSize( 1.0 );

So the scale factor will act like radius
(0016959)
Patrick Cheng (developer)
2009-07-24 10:53

 Fixes checked in. Along with fixes with test programs and baseline images

 Issue History
Date Modified Username Field Change
2009-07-24 10:50 Patrick Cheng New Issue
2009-07-24 10:50 Patrick Cheng Status new => assigned
2009-07-24 10:50 Patrick Cheng Assigned To => Patrick Cheng
2009-07-24 10:51 Patrick Cheng Note Added: 0016957
2009-07-24 10:51 Patrick Cheng Status assigned => confirmed
2009-07-24 10:52 Patrick Cheng Note Added: 0016958
2009-07-24 10:52 Patrick Cheng Status confirmed => resolved
2009-07-24 10:52 Patrick Cheng Resolution open => fixed
2009-07-24 10:53 Patrick Cheng Note Added: 0016959
2009-07-24 10:53 Patrick Cheng Status resolved => closed

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