I presently have a set up in which I plot some measurements on some background
maps. Things work fine, but I want to add the possibility to query the
measurement data set by clicking on a measurement. The measurements have
coordinates in lat lon and I only manage to query those data if I plot the
entire map in the same projection. I have tried to reproject the query point
using code like
$mapproj=$map->getProjection();
$layerproj=$map->getlayerbyname('mobil')->getProjection();
if($mapproj!=$layerproj){
$mapproj=ms_newProjectionObj($mapproj);
$layerproj=ms_newProjectionObj($layerproj);
debug(array($geopoint->x,$geopoint->y));
$geopoint->project($mapproj, $layerproj);
// projects the point from the projection of the map to the projection
of layer
debug(array($geopoint->x,$geopoint->y));
}
the debug function just dumps the data and it is clear that the point is
correctly reprojected, but anyhow
$map->queryByPoint($geopoint, MS_MULTIPLE, 1);
never gives anything if the mobil-layer and the map are in different
projections.
Are there any ways to overcome this? As I am mostly working on maps from 60 deg
north and upwards, geographical projection is not the projection of choise and
I would prefer not having to reproject the measurement data.
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