I have found a possible partial solution to this problem. In my CGI program, I am using the proj utility to convert the (dynamically determined) lat/long extent of the main map to metres and then using URL substitution to pass these values to mapserv.
For testing purposes,I have manually edited the map file to set the reference map extent to the same values and the "box of interest" display now works. My problem now is to work out how to change the reference map extent (and image) dynamically. (See separate posting.) Cheers, Stephen -- ======================================================================== This email is for the person(s) identified above, and is confidential to the sender and the person(s). No one else is authorised to use or disseminate this email or its contents. Stephen Davies Consulting Voice: 08-8177 1595 Adelaide, South Australia. Fax: 08-8177 0133 Computing & Network solutions. Mobile:0403 0405 83
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