[visit-developers] [visit-users] Banding issue in VisIt - again

Harrison, Cyrus D. harrison37 at llnl.gov
Fri Jul 31 17:23:13 EDT 2015


Another way to skin the cat:

Instead of a scatter plot, you could create a scatter operator that creates the mesh topology (and fields four the) scattered point mesh. 

Then you could use the Psedocolor plot, with any set of operators you care to. 

-Cyrus

On Jul 31, 2015, at 2:07 PM, Brad Whitlock <bjw at ilight.com> wrote:

> I agree Transform on a Scatter plot could be a useful thing. However, it would require some notion that the Transform was not able to be fulfilled in the operator and that it needs to be done later in the pipeline after the plot has executed. This kind of idea could be very useful for things that might happen in rendering, for example. In certain cases, maybe the Transform is factored into the rendering matrix. Or, reflect could be made to render the dataset with multiple transforms.
> 
> Brad
> 
> 
> On Fri, Jul 31, 2015 at 2:01 PM, Harrison, Cyrus D. <harrison37 at llnl.gov> wrote:
> Hi Mark,
> 
> You can modify the scalar ranges used as input for a Scatter plot using expressions. 
> 
> -Cyrus
> 
> On Jul 31, 2015, at 1:59 PM, Miller, Mark C. <miller86 at llnl.gov> wrote:
> 
>> 
>> 
>> From: Brad Whitlock <bjw at ilight.com>
>> 
>> 
>>> Transform having no effect on the Scatter plot is not a bug because the Scatter plot makes the new point mesh from data arrays after Transform would have executed.
>> 
>> 
>> Hmm. It still seems like a bug to me. I mean I can understand if there are limitations in the implementation that make it difficult for Scatter plot to behave like other plots (maybe that is what you are explaininng above). But from the outside looking in, if I can 'Transform' other plots, why can't I transform a Scatter plot?
>> 
>> Mark
>> 
> 
> 

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