Samuel Hiatt wrote:
Hi all!
I am trying to serve up several floating point 32-bit rasters and I am
curious to know the best way to render these images in color. I've read
that it is possible to use a LUT to define the colors of a pseudo-color
image, but only for byte data (256 colors).
Has anyone already tackled this problem of displaying these float32
rasters? What do y'all think is the best way to do it?
Sam,
I was going to suggested using the RFC 6 colorrange mechanism, but on
reflection, I'm pretty sure I never implemented it for raster data.
The "normal" approach is just to use quite a few classes - one per color.
It's hard to have enough classes to give really continuous color, but you
can do a bunch of graduations and assign each range a nice name (or numeric
value range in text) to appear in the legend.
Best regards,
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