Jukka

if you have a column you can use for sorting you could rewrite the shapefile using the sortshp tool provided with mapserver. The problem might be how to add this field if you create the shapefile with gdaltindex. One could use a Perl/PHP/Python script to update a sort column in the shape dbf based on an information in another file (dbase, txt) or database.

Or if you anyway use Postgis you could put the tileindex in a Postgis table and define the DATA tag in the map file with an ORDER BY at the end. Also here you'd need to find a way to set the sort order in a column.

Armin


On 10/04/2008 21:32, Rahkonen Jukka wrote:
Hi,
I started to wonder if it is be possible to define the drawing order of image 
tiles by tweaking with tileindex.  It might be of some use if, for example, 
there are recent overlapping images which would be fine to have always on top 
of older images.  Perhaps the tileindex shapefile could be sorted in some 
clever way?

-Jukka Rahkonen- _______________________________________________
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