gdalindex question

[Dylan Beaudette]

Greetings!

I have a pile of DOQQ images  that i would like to use with my map, and wanted
to use gdalindex to setup an efficient way for these images to be loaded.

note that everything is in the same projection.

after running:
gdaltindex doqq_index.shp *.tiff

i am left with a shapfile with entries for all of the images.... seems ok.

...looking at the output in QGIS:
http://169.237.35.250/~dylan/temp/gdalindex_problems.jpg
...all seems fine (except for a few mssing images)

however mapserver is not rendering the tiff files based on the index:
http://169.237.35.250/~dylan/temp/tile_index.png

here is my layer defs in my map file:
----------------------------snip----------------------------
LAYER
 NAME "DOQQ_index"
 TYPE RASTER
 TILEINDEX "imagery/doqq/tiled/doqq_index.shp"
 TILEITEM "Location"

 #DATA "imagery/doqq/tiled/o38122f1nw.tif.temp.tiff"
 STATUS DEFAULT

 #remove the black (no_data) pixels!
 CLASSITEM "[pixel]"
 CLASS
  EXPRESSION ([pixel] == 0 )
  COLOR 255 255 255
 END

 #render the rest of the pixel values!
 CLASS
  NAME "DOQQ"
 END
END
----------------------------snip----------------------------


any ideas>?

thanks in advance!!

Dylan Beaudette
Soil Science Grad Group
University of California at Davis