[Paraview] use the same scalar data to create contour and color the surface

[Tom Schoenemann]

I have a single volume dataset that has scalar values only on a surface, and zeros everywhere else.  The scalar values represent statistics we have calculated for each point on a surface.  I've been able using the contour filter to create an isosurface from this dataset, but I can't get the surface to display anything other than a single color.  I have tried setting "contour by" to "compute normals" and "compute scalars", and then going to "display" and choosing "color by" scalars.  However, only a single value is allowed.  I have tried unselecting "automatically rescale to fit data range" and then entering my own range, but only my minimum value is accepted (even if I enter a different value for the maximum).  

Perhaps I am using paraview the wrong way, but I have to say, it isn't intuitive.  Is there a way to use the same scalar data (same file) to both: 1) create a surface, and 2) color code the surface based on the same scalar values?

Thanks for any hints or suggestions.

-Tom

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