On 10/4/2013 3:45 PM, Worth Lutz wrote:
I have a question on preparing a set of orthophoto tiff files for use
with MapServer.
The orthophotos are 10,000 x 10,000 pixels with 6 in. resolution.
Currently I have a tile index pointing to these files.
I’m wondering about internal tiling and overlays. Should I process these
tiles with gdal to internally tile each one and add internal overlays.
I’m thinking that the overlays would be more useful that the internal
tiling based upon the size of the current tiles.
Yes, you should do both of these. The internal tiling is very important
when you access a very small part of the image so you do not have to
pull the whole image into memory just to access a small part of it.
The overlays are import when you are zooming out so you do not have to
resample on the fly.
-Steve W
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