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NoData displayed as 0 beyond 1:7521

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08-08-2014 10:11 AM
DarrenWiens2
by MVP Honored Contributor
MVP Honored Contributor
‎08-08-2014 10:11 AM

I have a raster (TIFF, double, 64 bit, with pyramids and statistics, LZW compression) that displays normally (transparent NoData) at all scales >= 1:7521, but displays NoData as the same colour as 0 at <= 1:7522. As far as I can tell, there is no reference scale interfering. Any ideas?

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4 Replies
JakeSkinner
by Esri Esteemed Contributor
Esri Esteemed Contributor
‎08-08-2014 11:39 AM

Hi Darren,

A couple of things to try:

1. Delete and rebuild the pyramids

2. Export the raster to another format (i.e. IMG) to see if the issue is still reproducible

DarrenWiens2
by MVP Honored Contributor
MVP Honored Contributor
‎08-08-2014 11:58 AM

Thanks, Jake, but no luck.

JakeSkinner
by Esri Esteemed Contributor
Esri Esteemed Contributor
‎08-08-2014 12:02 PM

Can you zip and upload the raster?  Or, if it's too large, just a portion?

XanderBakker
by Esri Esteemed Contributor
Esri Esteemed Contributor
‎08-08-2014 12:06 PM

Might have something to do with the creation of the pyramids. You could try to recreate them.