I think your= can create two lookup tables, one for each scalar. Then use vtkLookupTable::MapScalarsThroughLookupTable to create two rgb outputs.<br><br>Then in a loop, do the blending between the rgb values of each output.<br>
<br>Finally, create a new point data that has the blended rgb values for the polydata<br><br><div class="gmail_quote">On Sat, Oct 6, 2012 at 4:45 PM, Matt Sutton <span dir="ltr"><<a href="mailto:matt.sutton@padtinc.com" target="_blank">matt.sutton@padtinc.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Sorry to reply to my own post, but I also want this blending to occur on a per vertex basis. That is, the epsilon value would be an array of the same length as the input scalar array passed through the lookup table.</div>
<div>Regards,</div><div class="im"><div>Matt<br><br>Sent from my iPad</div></div><div><div class="h5"><div><br>On Oct 6, 2012, at 1:40 PM, "Matt Sutton" <<a href="mailto:matt.sutton@padtinc.com" target="_blank">matt.sutton@padtinc.com</a>> wrote:<br>
<br></div><blockquote type="cite"><div><div>I mean display all of the data with a lookup table. What I would like to do is to take the color output from a lookup table and blend it with a base color, probably white, by a ratio say, epsilon. Something like C*(1-epsilon) + epsilon*base</div>
<div>I looked at the vtkLookupTableWithEnabling class thinking that it was close. I actually tried creating a new class by editing a copy of that class (not subclassing it) but the length of the "enable" array was not clear to me?</div>
<div>Thanks for any suggestions!</div><div>Matt<br><br>Sent from my iPad</div><div><br>On Oct 6, 2012, at 5:04 AM, "Bill Lorensen" <<a href="mailto:bill.lorensen@gmail.com" target="_blank">bill.lorensen@gmail.com</a>> wrote:<br>
<br></div><blockquote type="cite"><div>When you say "contour" the data do you mean generate isosurfaces/isolines or do you mean display all of the data with a lookup table?<br><br><div class="gmail_quote">On Fri, Oct 5, 2012 at 11:11 AM, Matt Sutton <span dir="ltr"><<a href="mailto:matt.sutton@padtinc.com" target="_blank">matt.sutton@padtinc.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
I have two separate scalar data arrays that I would like to use for coloring a poly data. One scalar will always be between 0-1. The other will have arbitrary values. I would like to contour the poly data with the arbitrary scalar quantity using a standard lookup table. Then, I would like to take the corresponding output color value for each point and blend it with a base color based on the second scalar value. Is there a filter that will do this?<br>
Thanks,<br>
Matt<br>
<br>
Sent from my iPad<br>
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