tiling imagery

[Stephen Lime]

We use tiles all the time for imagery. Currently we have doqs and drgs for the
entire online with that sort of a setup. Here's an example layer def.

  LAYER
    NAME doq_images
    GROUP doq03im4
    STATUS OFF
    TYPE RASTER
    OFFSITE 255
    TILEINDEX shapefiles/q024ipy4w
    TILEITEM "doq_loc"
    MAXSCALE 100000
  END # doqs (3 meter)

The tileindex contains image outlines and the tileitem contains the fullpath to the
corresponding image.

Steve

Stephen Lime
Internet Applications Analyst

Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937

>>> Andrea Goethals <andreag at geoplan.ufl.edu> 10/04/00 03:21PM >>>
Hi,

I am looking for a way to have the user select spatial
extents to display our satellite imagery and aerial
photos.

I saw the "Index" option for the Layer object in the
map file but can't seem to figure out how to use it.

Basically I have shapefiles that show the extents of
each image and there's an item in the .dbf that
says which image the extent corresponds to.

Are any of you doing something similar and could
offer suggestions?

Thanks,
Andrea


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| Andrea Goethals         |
| andreag at geoplan.ufl.edu |
| GeoPlan Center          |
| University of Florida   |
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