[vtkusers] Custom Text Overlay Annotations on vtkResliceImageViewer

[Dean Inglis]

Hi Randy,

I have had success with vtkCornerAnnotation in single view and multi-view
scenarios.
The pipeline you could use might be:
vtkImageData -> vtkImageMapToWindowLevelColors -> vtkCornerAnnotation

The output of the map to window level colors would also be input into a
vtkImageActor in a vtkRenderer.
You can use callbacks to transmit shared window level interaction and
values among multiple renderers.
 vtkImageViewer2 is an example of how to get this kind of interaction
working in a single view.

- Dean





On Wed, Apr 12, 2017 at 1:11 AM, Randy Underwood <river165 at gmail.com> wrote:

> Hi,
>   I would like to add some custom text annotation information to the
> display of each image displayed in vtkResliceImageViewer (or other viewer
> or window is fine too). Suppose I have a volumetric dataset (a stack of
> axial CT images) loaded in the viewer. As the user scrolls through the
> images I would like to display the current window width and level, the
> location of the current slice within the volume and some additional
> information the current slice. What is the correct (or preferred) mechanism
> for modifying vtkResliceImageViewer to display my custom information for
> each displayed slice.
> Thank you.
> Randy
>
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