View source for Chain Transforms To VF CLP

[[File:ChainTransformsToVFCLP.png | thumb | none| 300px | Chain Transforms To Vector Field]]

== General Information ==

* Type: CLP
* Category: Registration
* Author: Nicolas Duchateau
* Contributor: Xavi Planes
* Contact: xavier.planes at upf.edu
* Description: Represent a concatenation of transforms as a vector field. While this seems simple, it implies a conversion from a backward to a forward representation of the transformation (forward: 'x in the moving image goes to x'; backward: 'point x in the fixed image comes from x'). The pixel type of the output vector field will always be double.

== Usage ==


=== Parameters ===

{| border="1" cellpadding="2" cellspacing="0" style="text-align: left;"
|- style="text-align: center; background-color: #95b3d7;" 
! Label
! Type
! Flag / Index
! Default value / Channel
! Description
|-
! style="text-align: center; background-color: #dce6f1;" colspan="5" | Parameters
|-
! Input Transforms
| string-vector
| transformFileName
| 
| List of transforms files to read
|-
! Extension size (mm)
| float-vector
| ext_size
| 0,0,0
| Extension size (mm)
|-
! Input Image
| image
| index 0
| input
| To get spacing, origin, etc...
|-
! Single Transform
| transform (fileExtensions=".dof")
| --singleTransformFileName
| input
| Single Transform. Facilitates the use of this CLP when only one input transform is used. This transform will be the first transform of the transform list if set
|-
! Output Vector Field
| image (fileExtensions=".mhd" type="vector")
| index 1
| output
| 
|}

=== Examples ===

Converts a single transform into a vector field. In the right side you can see the magnitude of the 3D vector for each point.

[[File:ChainTransformsToVFCLP.png | thumb | none| 500px | Chain Transforms To Vector Field]]

== Development ==

Source code: [{{SVN_GIMIAS_Trunk}}/src/Modules/TpExtLib/Applications/ChainTransformsToVF/ChainTransformsToVF.cxx C++ Source code] and [{{SVN_GIMIAS_Trunk}}/src/Modules/TpExtLib/Applications/ChainTransformsToVF/ChainTransformsToVF.xml XML description]

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