[mapserver-users] RE: How to set Labels dynamically

Ludwig Kniprath ludwig at kni-online.de
Thu Dec 3 09:13:22 PST 2009


Hi,
I think there's only one line missing after $daLayer->draw($image):

$daLayer->drawLabelCache($image);

Regards
Ludwig

>Message: 6
>Date: Thu, 3 Dec 2009 11:13:10 -0500
>From: Helen Eskina <heskina at ubitech.com>
>Subject: [mapserver-users] How to set Labels dynamically?
>To: mapserver-users at lists.osgeo.org
>Message-ID: <5CDE4E2F906F4CE9B22AFEDB42CD00F0 at SkySource>
>Content-Type: text/plain; charset="windows-1252"
>
>Hello,
>
>
>
>I couldn’t find documentation how to set the text labels dynamically using
>MapScript.
>
>My application should show points with labels on the map. Points and labels
>are obtained dynamically from the database or some text file.
>
>I add the points to the layer and draw layer as following:
>
>
>
>$my_point = ms_newpointObj();
>
>
>
> $my_point->setXY(-75.895, 45.9227);
>
> $my_point->project($projInObj,$projOutObj);
>
>
>
> $line = ms_newLineObj();
>
>$line->add($my_point);
>
> $shape = ms_newShapeObj(MS_SHAPE_POINT);
>
> $shape->add($line);
>
> $shape->set(text, 'new point');
>
> $daLayer->addFeature($shape);
>
>
>
>$image=$map->draw();
>
>$daLayer->draw($image);
>
> $image_url=$image->saveWebImage();
>
>
>
>Points are displayed on the map, but no text. What am I doing wrong?
>
>
>
>I will appreciate any help,
>
>Helen



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