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Text replacement - "slicerWiki/index.php" to "wiki"

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2012-10-31T22:00:07Z

Nightly -> 4.2

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{{documentation/{{documentation/version}}/module-section|Introduction and Acknowledgements}}
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This work is part of the National Alliance for Medical Image Computing (NA-MIC), funded by the National Institutes of Health through the NIH Roadmap for Medical Research, Grant U54 EB005149. Information on NA-MIC can be obtained from the [http://www.na-mic.org/ NA-MIC website]. 
Author: Alex Yarmarkovich (Isomics, SPL) 
Contributors: Jean-Christophe Fillion-Robin (Kitware), Julien Finet (Kitware) 
Contact: Alex Yarmarkovich, <email>alexy@bwh.harvard.edu</email> 
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{{documentation/{{documentation/version}}/module-section|Module Description}}
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{{documentation/{{documentation/version}}/module-section|Use Cases}}
Most frequently Transform module is used for these scenarios:

* Manual Registration: You can insert a transformation node into your scene, and in the Data module drag a volume or a model under it,
making them children of the transformation node. After that any changes to the transformation matrix of this node will be applied to the display of children volumes and models.

* To concatenate transforms: You can combine (affine) transforms in the Data module. Drag them onto eachother to nest. Order of nesting matters. Then right click and select "Harden Trasnform", which should move the nested one back to the top. Rename the node and save as new file.


{{documentation/{{documentation/version}}/module-section|Tutorials}}
* Please use tutorial about [http://www.slicer.org/slicerWiki/index.php/Documentation/4.0/Training loading and viewing data].


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{|
|-
| [[Image:QSlicerTransformsModuleUI.png|thumb|280px|Transforms module panel]]
| [[Image:QSlicerTransformsModule.png|thumb|660px|''LinearTransform'' applied to ''Meningioma2'' Rotations: IS 45º Translations: LR -41mm, IS 36mm]]
|}

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{{documentation/{{documentation/version}}/module-section|Similar Modules}}
* Related modules: [[Documentation/{{documentation/version}}/Modules/Data|Data module]], [[:Category:Documentation/{{documentation/version}}/Modules/Registration|Registration modules]].


{{documentation/{{documentation/version}}/module-section|References}}
N/A


{{documentation/{{documentation/version}}/module-section|Information for Developers}}
===Key [[Documentation/{{documentation/version}}/Developers/MRML|MRML]] nodes===
* [http://slicer.org/doc/html/classvtkMRMLTransformableNode.html vtkMRMLTransformableNode]
* [http://slicer.org/doc/html/classvtkMRMLTransformNode.html vtkMRMLTransformNode]
** [http://slicer.org/doc/html/classvtkMRMLLinearTransformNode.html vtkMRMLLinearTransformNode]
** [http://slicer.org/doc/html/classvtkMRMLBSplineTransformNode.html vtkMRMLBSplineTransformNode]
** [http://slicer.org/doc/html/classvtkMRMLGridTransformNode.html vtkMRMLGridTransformNode]
How to programmatically apply a transform to a transformable node:
vtkNew<[http://slicer.org/doc/html/classvtkMRMLLinearTransformNode.html vtkMRMLLinearTransformNode]> transformNode;
scene->AddNode(transformNode.GetPointer());
...
vtkNew<vtkMatrix4x4> matrix;
...
transform->SetAndObserveMatrixTransformToParent( matrix.GetPointer() );
...
vtkMRMLVolumeNode* transformableNode = ...; // or vtkMRMLModelNode*...
transformableNode->SetAndObserveTransformNodeID( transformNode->GetID() );

Because a ''transform'' node is also a ''transformable'' node, it is possible to concatenate transforms with each others:
[http://slicer.org/doc/html/classvtkMRMLLinearTransformNode.html vtkMRMLLinearTransformNode*] transformNode = ...;
[http://slicer.org/doc/html/classvtkMRMLLinearTransformNode.html vtkMRMLLinearTransformNode*] transformNode2 = ...;
transformNode2->SetAndObserveTransformNodeID( transformNode->GetID() );
...
transformable->SetAndObserveTransformNodeID( transformNode2->GetID() );

===Events===
When a transform node is observed by a transformable node, [http://slicer.org/doc/html/classvtkMRMLTransformableNode.html#ace1c30fc9df552543f00d51a20c038a6a4993bf6e23a6dfc138cb2efc1b9ce43b vtkMRMLTransformableNode::TransformModifiedEvent] is fired on the transformable node at observation time.
Anytime a transform is modified, vtkCommand::ModifiedEvent is fired on the transform node and [http://slicer.org/doc/html/classvtkMRMLTransformableNode.html#ace1c30fc9df552543f00d51a20c038a6a4993bf6e23a6dfc138cb2efc1b9ce43b vtkMRMLTransformableNode::TransformModifiedEvent] is fired on the transformable node.


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+* Please use tutorial about [http://www.slicer.org/wiki/Documentation/4.0/Training loading and viewing data].
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Documentation/4.2/Modules/Transforms - Revision history

Unknown user: Text replacement - "slicerWiki/index.php" to "wiki"

UpdateBot: Prepend documentation/versioncheck template. See http://na-mic.org/Mantis/view.php?id=2887

UpdateBot: Nightly -> 4.2