[Mapserver-users] SHPTREE Odd behavior

[Kieran J. Ames]

I've been experimenting with shptree and seeing remarkable performance
boosts (on point and line shapefiles). However, I've found some odd
behavior now with polygons.
I'm rendering polygons that take quite a while to come up (mapserver
cgi). I then use shptree and get the following error message:

msDrawShape(): General error message. Only polygon shapes can be drawn
using a POLYGON layer definition.

If I then delete the associated .qix files, the map again renders.

I'm using mapserver
MapServer version 3.6.3 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
SUPPORTS=PROJ SUPPORTS=TTF SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT
INPUT=TIFF INPUT=EPPL7 INPUT=JPEG INPUT=OGR INPUT=SHAPEFILE

SHPTREE is dated 11/01/00  09:48a  131,122 bytes

...appreciate any help.
Kieran