[mapserver-users] areas of high res

[TC Haddad]

use two different tile indexes and use  MIN- and MAXSCALEDENOM to control
when they are each used.

presumably you already have one tileindex working for the nationwide 500,000
scale images?

so make a second one that is a compound index - looks like the above, but
also includes the footprints of the 250,000 areas (replacing the 500,000
references in those areas). Switch between the two something like this:

LAYER
  NAME "Overview Imagery"
  STATUS OFF
  TYPE RASTER
  TILEINDEX "img_index_500k"
  TILEITEM "PATH"
  MINSCALEDENOM 300001
END

LAYER
  NAME "Detailed Imagery"
  STATUS OFF
  TYPE RASTER
  TILEINDEX "img_index_250k"
  TILEITEM "PATH"
  MAXSCALEDENOM 300000
END








On Tue, Feb 2, 2010 at 1:34 PM, Wendell Turner <wendell at enflight.com> wrote:

The base layer of my map has full coverage of the US at a
> scale of 1:500,000.  That works fine.  I have some areas of
> detail that have tif files at a scale of 1:250,000.  What do
> I put in the mapfile to say 'use high res if available for
> this tile, otherwise use the low res one'?
>
> Thanks,
>
> Wendell
>
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