[Insight-users] Polyline input of itkPolylineMask2DImageFilter

[Zhu, Yaoyao (NIH/NLM/LHC) [C]]

Andinet,

I looked at the example for " itkPolylineMask2DImageFilter" which is
conflict to the example for "itkPolyLineParametricPath1.cxx"

@ Examples/DataRepresentation/Path

The following codes indicate that the vertices are specified in
Continuous Index:

typedef itk::PolyLineParametricPath< Dimension > PathType;
PathType::Pointer path = PathType::New();

image->TransformPhysicalPointToContinuousIndex( origin, cindex );
 
path->AddVertex( cindex );


Am I missing something here?

Thanks,

yaoyao

-----Original Message-----
From: Andinet Enquobahrie [mailto:andinet.enqu at kitware.com] 
Sent: Wednesday, June 20, 2007 9:51 AM
To: Zhu, Yaoyao (NIH/NLM/LHC) [C]
Cc: insight-users at itk.org
Subject: Re: [Insight-users] Polyline input of
itkPolylineMask2DImageFilter

Zhu, Yaoyao (NIH/NLM/LHC) [C] wrote:

>Hi, Andinet and all,
>
>I checked the CVS directory for the updated
>itkPolylineMask2DImageFilter. It looks like that the file has been
>modified back and forth. My question is 
>
>What kind of contour this filter takes in? If it is "
>itkPolyLineParametricPath". The vertex inside is "ContinuousIndex"
>instead of physical points.
>
>Can anyone have used this filter before? Please let me know how to
input
>the contour?
>  
>
The vertices of the polyline parametric path are specified in physical 
coordinate system.
That is why we reverted back the change I made yesterday.

Please take a look at the test program on how to use the filter.

Testing/Code/BasicFilters/itkPolylineMask2DImageFilterTest.cxx

-Andinet

>Thanks a lot,
>
>yaoyao
>
>
>-----Original Message-----
>From: Andinet Enquobahrie [mailto:andinet.enqu at kitware.com] 
>Sent: Tuesday, June 19, 2007 5:34 PM
>To: Zhu, Yaoyao (NIH/NLM/LHC) [C]
>Cc: insight-users at itk.org
>Subject: Re: [Insight-users] Polyline input of
>itkPolylineMask2DImageFilter
>
>Hi Yaoyao,
>
>Thanks for pointing out the redundant transformation.
>
>I have committed a fix to CVS. Please give it a try and
>let me know if you see any other issues
>
>-Andinet
>
>  
>
>>Hi,
>>
>>I looked at the filter: itkPolylineMask2DImageFilter, it takes two
>>    
>>
>inputs:
>  
>
>>   1. Input Image
>>   2. A contour , I guess it would be type of
>>    
>>
>"itkPolyLineParametricPath"
>  
>
>>I found something weird. For itkPolyLineParametricPath, the vertex 
>>list stores the ContinuousIndex. When it is passed to 
>>itkPolylineMask2DImageFilter, In the method of "GenerateData", the 
>>value of vertex is transformed from PhysicalPoint to Index AGAIN.
>>
>>I am wondering if anyone has used this filter successfully before. If 
>>so, please let me what is the input type of the contour and what is 
>>the type of vertex inside (physical point, or index )?
>>
>>Thanks,
>>
>>Yaoyao
>>
>>----------------------------------------------------------------------
-
>>    
>>
>-
>  
>
>>_______________________________________________
>>Insight-users mailing list
>>Insight-users at itk.org
>>http://www.itk.org/mailman/listinfo/insight-users
>> 
>>
>>    
>>
>
>
>  
>


-- 
==========================================================
Andinet A. Enquobahrie, PhD
R&D Engineer
Kitware Inc.

28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x124
www.kitware.com