Hi all,
For the record, I asked the geoserver team and it seems that no such
options exists for now. The problem is that for now they do a getinfo on
the coordonates of the geometry (a point in my case) instead of the
representation (likely a circle for me). The representation is larger
than the geometry so you get the feeling you can click anywhere in the
cercle to get info.
By reality is really different ;)
This issue is opened in their bug base so I guess it will be fixed in
the next versions.
Regards,
Marc
Dmitri Mizerkin wrote:
Mi Marc,
so you have to request feature from the server, not feature info.
A click event on a map returns the values for x and y in the view
port. You should make a box of those adding and substracting a custom
tolerance value. After you've done so you got 4 values: minx = x -
tolerance, miny = y - tolerance, maxx = x + tolerance, maxy = y +
tolerance. These can be converted to latitude-longitude values using
OpenLayers ( map.getLonLatFromViewPortPx function). After all of these
actions you get your BBOX so you can send a request to the geoserver
like this:
http://your_host/geoserver/wfs?REQUEST=GetFeature&SERVICE=WFS&VERSION=1.0.0&TYPENAME=your_layer_names&BBOX=your_bbox&MAXFEATURES=10
<http://your_host/geoserver/wfs?REQUEST=GetFeature&SERVICE=WFS&VERSION=1.0.0&TYPENAME=your_layer_names&BBOX=your_bbox&MAXFEATURES=10>
That's the only workaround I know.
Cheers,
Dmitri
2007/7/20, Marc Desharnais <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>>:
Hi all,
I'm using geoserver so I guess your solution won't work. Anyone has an
idea about setting a tolerance level in geoserver?
Or anything that would make it easier to click on a point of a map
with
geoserver.
Thanks,
Marc
Dmitri Mizerkin wrote:
> Hi Bill,
>
> that's the right way to do it. What I meant is setting the tolerance
> via URL, in your case it would be sth like
>
http://youhost/...&map_layer_0_tolerance=1&map_layer_0_toleranceunits=feet
<http://youhost/...&map_layer_0_tolerance=1&map_layer_0_toleranceunits=feet>
> <
http://youhost/...&map_layer_0_tolerance=1&map_layer_0_toleranceunits=feet
<http://youhost/...&map_layer_0_tolerance=1&map_layer_0_toleranceunits=feet>>
> (I don't know if the underscores in your layer name won't affect the
> functionality so I'm assuming that it is the first layer in the
> mapfile and using the index of it). More information can be found on
> http://mapserver.gis.umn.edu/docs/reference/cgi/controls in the
very
> last chapter "Changing map file parameters via a form or a URL ".
>
> Hopefully it helps Marc with his issue.
>
> Regards,
> Dmitri
>
> 2007/7/20, Bill Woodall < [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>
> <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>>:
>
> Hi All
>
> What has worked for me in using TOLERANCE is to put it into the
> mapfile
> ( if you are using MapServer) like ;
>
> LAYER
> NAME Scrub_and_Chaparral
> TEMPLATE blank
> TOLERANCE 1
> TOLERANCEUNITS feet
> METADATA
> "wms_title" "Scrub_and_Chaparral"
> "wms_include_items" "CATEGORY,LEGEND,SOURCE"
> END
> TYPE POLYGON
> STATUS ON
> DATA Scrub_and_Chaparral
>
> ......Bill,
>
> On Thu, 2007-07-19 at 20:08 +0200, Dmitri Mizerkin wrote:
> > Hi Marc,
> >
> > in a WMS/WFS service request the attribute you are looking
for is
> > called TOLERANCE. I think this should do it when set as a
> parameter in
> > getFullRequestString function (see user recipies:
> > http://trac.openlayers.org/wiki/GetFeatureInfo).
> >
> > Hopefully it helps you out.
> >
> > Cheers,
> > Dmitri
> >
> > 2007/7/19, Marc Desharnais < [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>
> <mailto: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>>>:
> > Hi all,
> >
> > I search for an attribute to set to make it easier to
> click on
> > points to
> > get some info about them.
> > I tried some things like RADIUS or REDIUS (saw
that on a
> page
> > on
> > internet) but nothing works.
> >
> > I just want it to be easier to click on the point
if it's
> > possible, a
> > couple of pixels more.
> >
> >
> > Thank in advance,
> >
> > Marc
> > _______________________________________________
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