Hi Jason: There is no existing way to edit or view those files. That said, the
queryfile format is *very* basic. I'd have to go to the source to check for
sure but I believe is a simple binary encoding that looks like:
[layer 1 index]
[shape 1 index] [tile index]
...
[shape n index] [tile index]
[layer 2 index]
[shape 2 index] [tile index]
...
[shape 2 index] [tile index]
and so on...
There might be a header that stores the number of layers and number of records
involved (see mapquery.c for sure).
You'll see the query file format is very much tied to a mapfile and the order
of layers within.
Steve
>>> Jason Sievers <[EMAIL PROTECTED]> 10/12/2006 3:59:26 PM >>>
I would like to know if there is any way to view and/or edit MapServer query
files (.qy). I ask this because I have an application where a query is
performed and then the user may add or remove features from the results set.
I am using MapServer CGI 4.8.4. Currently I accomplish this by managing an
array containing all the UID's for the selected features. Then I apply a
FILTER to my map layer using the UID's stored in my array. This works but the
query string passed to MapServer's CGI program can be very large and even
exceed the maximum URL length (~2000 for Internet Explorer). I'm looking for a
way to limit the length of my query string and using a query file would do
that. Any thoughts on the query file format would be helpful.
Thanks,
Jason Sievers
Linn County GIS
Albany, OR
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