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Raster Displays with "Holes" after Building Pyramids

Question asked by rgreenenf on May 5, 2011
Latest reply on Nov 15, 2011 by geonetadmin
Good day,

We have a large 16-bit unsigned integer raster in GRID format in 9.3. Before building pyramids it displays fine when zoomed out to the entire layer (see before.jpg, attached).

After building pyramids to improve display performance, it displays with "holes" (see after.jpg, attached). When we zoom in, the holes go away. What is causing this and how can we overcome it?

Thanks in advance,
Randal Greene