[vtkusers] Color the 3D object wrt the time when the points were added

[Divya]

Cory,

Thanks for the input, will work on this.

On 4/16/2013 6:44 PM, Cory Quammen wrote:
> Divya,
>
> Here's an outline of a general approach you might use. You could 
> create a scalar field for your 3D object that contains the time at 
> which the point was added. Then you can use a transfer function that 
> you use to color the 3D object according to those scalars. By 
> appropriately defining the controls points of the transfer function, 
> you can color the objects added in the last twenty seconds one color 
> and the rest of the points another color.
>
> The only downside of this approach is that you might have a band of 
> color across a surface cell if that cell is made up of old and new points.
>
> Hope this helps,
> Cory
>
>
> On Tue, Apr 16, 2013 at 2:26 AM, Divya <divya at triassicsolutions.com 
> <mailto:divya at triassicsolutions.com>> wrote:
>
>
>
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> Cory Quammen
> Research Associate
> Department of Computer Science
> The University of North Carolina at Chapel Hill


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