dBox map multiple results with itemnquery

[Richard Greenwood]

I am using a simple template to map the results of an itemnquery:
  [img],[shpminx],[shpminy],[shpmaxx],[shpmaxy],[queryfile]
from which I parse the 'img' to draw the map and the shpminx, shpminy,
shpmaxx, shpmaxy, to set the new extents. Works fine for a single
result.

Multiple results are harder. If I put the template in the HEADER I get
an image with all results (which is what I want) but I don't get
shpminx, shpminy, shpmaxx, shpmaxy. Whit my template as TEMPLATE, it
gets processed for each result. I get the shpminx, shpminy, shpmaxx,
shpmaxy, but what I really want is shpminx, shpminy, shpmaxx, shpmaxy
for the whole result set.

I could process each record in JavaScript and save the min & max x &
y, and assume that will be the extents on the full result set, but I
don't think that would be reliable.

How can I get the extents of a multi-result image?

Rich

-- 
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com