[Mapserver-users] Unique? Was: mapscript - queryByPoint help, simple Q

[woodbri at swoodbridge.com]

poff,

Do you have TOLERANCE set to a value, if it defaults to 0.0 then it 
is going to be pretty hard to selecet a point.

-Steve

On 29 Aug 2003 at 14:08, poff wrote:

> Hello
> 
> I know everyone is busy - and thanks a lot for your help.
> 
> Only, does _no-one_ use querbypoint with php mapscript?
> 
> It's a great feature if I could get it working, and definitely
> something to go in Wiki someday!
> 
> Thanks
> 
> P
> 
> On Thu, Aug 28, 2003 at 11:40:42PM +0200, poff wrote:
> > > The problem is probably in your map file.
> > > TEMPLATE belongs in the LAYER not the CLASS.
> > 
> > Thanks, I changed this and no change to the outcome.
> > 
> > However, I added the TEMPLATE tag to all of the layers and then
> > suddenly, on the last layer:
> > 
> > Warning: MapServer Error in msOpenSHPFile(): No (NULL) filename
> > provided
> > 
> > This is using $mapObj->query...
> > 
> > With the $uLayer->query it just says no records.
> > 
> > Then when I changed $uLayer to the last one they both give the NULL
> > error.
> > 
> > I'll go bald with all this hair pulling out!
> > 
> > Thanks,
> > 
> > P
> > 
> > > 
> > > 
> > > On Thu, 2003-08-28 at 19:15, poff wrote:
> > > > Hello again
> > > > 
> > > > I've tried all the list suggestions with the followig code, but
> > > > am _still_ getting "No Records Found".
> > > > 
> > > > If anyone could suggest or point out what I'm doing wrong I'd be
> > > > greatly indebted to them!
> > > > 
> > > > Here it goes:
> > > > 
> > > > ...
> > > > $map = ms_newMapObj($mapfile);
> > > > 
> > > > $uLayer = $map->getLayerByName("Points");
> > > > $uLayer->set("status",1);
> > > > 
> > > > $image=$map->draw();
> > > > 
> > > > while () {
> > > > 
> > > > 	$oPoint = ms_newPointObj();
> > > > 	$oPoint->setXY($geoData['px'], $geoData['py']);
> > > > 
> > > > 	$line = ms_newLineObj();
> > > > 	$line->add($oPoint);
> > > > 
> > > >      	$shp=ms_newShapeObj(MS_SHAPE_POINT);
> > > >      	$shp->add($line);
> > > >      	$shp->{text}=$geoData['place_name'];
> > > >       	$shp->{index}=$i;
> > > > 
> > > >       	$uLayer->addFeature($shp);
> > > >       		
> > > > 	$oPoint->draw($map, $uLayer, $image, 0,
> > > > $geoData['place_name']);
> > > > 
> > > > }
> > > > 
> > > > $my_point = ms_newpointObj();
> > > > $my_point->setXY($_REQUEST["mapa_x"],$_REQUEST["mapa_y"]);
> > > > 	
> > > > $map->queryByPoint($my_point, MS_SINGLE, 20);
> > > > 
> > > > $uLayer->queryByPoint($my_point,MS_SINGLE,-10); // for good
> > > > measure ...
> > > > 
> > > > And the mapfile:
> > > > 
> > > > ...
> > > > LAYER
> > > > 	NAME "Points"
> > > > 	STATUS ON
> > > > 	TYPE POINT
> > > > 	LABELCACHE FALSE
> > > > 	CLASS
> > > > 		NAME "User Marker"
> > > > 		SYMBOL "marker"
> > > > 	      	TEMPLATE "dummy"
> > > > 		LABEL
> > > > 			...
> > > > 		END
> > > > 	END
> > > > END
> > > > ...
> > > > 
> > > > I'm pretty stumped! I tried by $map-> and $Layer-> queryByPoint
> > > > to no great joy.
> > > > 
> > > > Thanks in advance,
> > > > 
> > > > P
> > > > 
> > > > -- 
> > > > poff at sixbit.org
> > > > SDF Public Access UNIX System - http://sdf.lonestar.org
> > > > 
> > > > Please do not carbon copy replies to me
> > > > _______________________________________________
> > > > Mapserver-users mailing list
> > > > Mapserver-users at lists.gis.umn.edu
> > > > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> > > > 
> > > 
> > > 
> > > _______________________________________________
> > > Mapserver-users mailing list
> > > Mapserver-users at lists.gis.umn.edu
> > > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> > 
> > -- 
> > poff at sixbit.org
> > SDF Public Access UNIX System - http://sdf.lonestar.org
> > 
> > Please do not carbon copy replies to me
> > _______________________________________________
> > Mapserver-users mailing list
> > Mapserver-users at lists.gis.umn.edu
> > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> 
> -- 
> poff at sixbit.org
> SDF Public Access UNIX System - http://sdf.lonestar.org
> 
> Please do not carbon copy replies to me
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