[vtk-developers] Possible vtkScalarBarActor improvement

[Wang, Kevin]

Hi Jc,

I took a quick look at vtkScalarBarActor/vtkScalarsToColors and saw quite a bit changes between 5.10 and 6.0. It will be a bit of work for me to backport them to 5.10 and I am afraid I do not have a lot of time to work on this. Is there any other option we can take which requires less time? Or maybe we can wait a bit until slicer uses 6.0.

Thanks,

Kevin

From: Jean-Christophe Fillion-Robin [mailto:jchris.fillionr at kitware.com]
Sent: Monday, September 16, 2013 12:41 PM
To: Wang, Kevin
Cc: David Thompson; vtk-developers at vtk.org
Subject: Re: [vtk-developers] Possible vtkScalarBarActor improvement

Hi Kevin,

I would suggest you a submit a pull request to the SlicerVTK fork backporting the functionality you would like. Then, when we will transition to VTK6, it will go very smoothly.

In parallel, you could also submit a patch to the VTK list that would be integrated to the VTK 5.10 maintenance branch.

Thanks
Jc

On Mon, Sep 16, 2013 at 11:24 AM, Wang, Kevin <kevin.wang at rmp.uhn.on.ca<mailto:kevin.wang at rmp.uhn.on.ca>> wrote:
Thanks David. I think I am ok with switching the vtkStringArrays on the fly.

Kevin

-----Original Message-----
From: David Thompson [mailto:david.thompson at kitware.com<mailto:david.thompson at kitware.com>]
Sent: Monday, September 16, 2013 11:17 AM
To: Wang, Kevin
Cc: 'Jean-Christophe Fillion-Robin'; vtk-developers at vtk.org<mailto:vtk-developers at vtk.org>
Subject: Re: [vtk-developers] Possible vtkScalarBarActor improvement
Hi Kevin,

> The SetAnnotation method in vtkScalarsToColors is what I need in deed. ...

Great.

> The interface is fine. I wonder if it is possible to add a method to control whether values are used for labels in the vtkScalarBarActor or the annotations are used. ...

I would be willing to consider adding something to the vtkScalarsToColors class to switch between sets of strings if we can come up with a clean API that preserves backwards-compatability -- but don't think the class should be  responsible for generating a string label for each value; it is very hard to get otherwise-rational people to agree on how to format numbers and vtkVarints as text. :-)

        David

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