How to find out whether point is in map extent?

[Stephen Woodbridge]

Hello Miroslav,

The way mapserver works is that "maps" are the data the mapserver serves
to the client. the data can be any of numerous formats like
geo-referenced rasters, or point, line, polygon data, etc. When a client
requests [a location and scale] or [a bounding box] to view, mapserver
searches through all the data it has been given and then displays the
requested view.

So what you need to do is:

1) create a mapfile with layers that define you "maps" data
2) If your data is broken into multiple files then you might need to
create and use a tileindex
3) create a template UI that calls the CGI interface to get user
requests and passes the requests to mapserver CGI

You can use the demo application as a starting point for a CGI template
application.

Can you tell us more about your "maps" data.
How many files? What type of files are they?
Is it raster data? Tiff?, jpeg, png, gif, other?
Is it geo-referenced? ie: does it have world files?

-Steve W

Miroslav Šulc wrote:
> Hello,
>
> I am very new to mapserver so I cannot figure out how to do this. I have
> several separate maps and I would like to display the correct map
> according to retrieved coordinate. In other words, I have a point
> specified by coordinates and I have to find out what map to display. I
> use the cgi version of  map server. I think I should use some sort of
> query command but I don't know how.
>
> I would appreciate any help.
>
> --
> Miroslav Šulc
>