Hello Jeff, Thank you for the reply. I'm pretty sure there's something I'm missing out here. In my map object I set my extent to: (retrieved from ogrinfo -al -so ) EXTENT 300000.000 4377000.000 304000.000 4380000.000 UNITS meters If I click on the lower left corner of the image for the first time, [mapx], [mapy] will give: 300000.000, 4377500.000A click in the upper right corner gives me: 303500.000, 4380000.000 This doesn't seem pretty right. I've set three projection objects, one in the map level and one on each layer with "init=epsg:2100". [maplat], [maplon] also gives me wrong values with the same epsg, but 300 meters south than the [mapx], [mapx] A first though would be that this should be a dataset problem
Στις 4:03 μ.μ. Τετάρτη, 6 Απριλίου 2016, ο/η Jeff McKenna <jmcke...@gatewaygeomatics.com> έγραψε: Hi Stefanos, When I try this locally with CGI, I also get the same value on first load for [mapx] and [mapy] of -1.0000,-1.0000 likely because there is no point click yet. But when I do click, the values for [mapx] and [mapy] returned look valid. You might also want to check the returned values for [maplat] [maplon] as well. If it is related to a projection issue, you might want to check the mailing list archives for relevant discussions, such as http://osgeo-org.1560.x6.nabble.com/retrieve-map-coordinates-with-different-EPSG-td5000369.html I am testing with MS4W 3.1.3 (MapServer 7.0.1). -jeff -- Jeff McKenna MapServer Consulting and Training Services http://www.gatewaygeomatics.com/ On 2016-04-05 7:37 PM, Stefanos Anastasiou wrote: > Hello list. > > I'm having a problem I can't understand where it's coming from. I'm > using [mapx] and [mapy] parameters to get the coordinates of a simple > click. When I click anywhere on the image, the resulting x,y is at least > 1 kilometer North-West from where it should. The image coordinates look > correct but the x,y are really wrong. I'm copying and pasting my form > variables below: > > <form name="the_form" method=GET action="/cgi-bin/mapserv"> > <input type="hidden" name="imgext" > value="[mapext]"> > <input type="hidden" name="map" value="[map]"> > <input type="image" name="img" src="[img]" > width="700" height="500"> > <input type="hidden" name="zoomsize" value="2"> > > > When I first load the map with the following URL > http://127.0.0.1/cgi-bin/mapserv?map=/home/stefanos/mapdata/mymap.map > <http://127.0.0.1/cgi-bin/mapserv?map=/home/stefanos/mapdata/trikala.map> > > x, y are set automatically in -1,000000 -1,000000. > > Any idea? > > > > Regards, > Stefanos > _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
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