March 2012
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Map

Cache validation and grid tools

grid levels 0-19

I got an email with a link to some cache validation tools, which was really nice.  The original link about previewing caches, wasn’t that useful, but the additional resources for cache validation tools (click this link to go there) contained some very useful tools.

If you are doing map caching (which we do a lot of) one of the things that you might look into is breaking your cache area into tiles, and caching them tile by tile.  This helps you break the job into smaller pieces, so if something fails you don’t need to start from scratch again.  The benefit of this tool is that you can break your caching down specifically into the tiling blocks that ESRI uses to store its caches, which will match your caching area with the blocks that it gets stored with.  This is especially useful if you have more than one machine to cache with.

So I have updated our cache tiling grid to match the blocks, but clipped the tile grid to the County boundary (so we only cache our County) and now have two cache grids – one for Cache Levels 0-19, and another for cache Level 20 (in order to save disk space I am not caching areas deep inside the forest).

 

 

grid level 20

 

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