blank map when a layer is defined from php
Shashi Gireddy
gireddy at GMAIL.COM
Mon Apr 4 14:31:49 PDT 2005
I spent a lot of time on it. I didn't found any solution. Is it
appears to be a bug. because it is trying to open the expression as
file, here is the error.
Warning: [MapServer Error]: msSHPOpenFile(): (c:/ms/map_files/the geom
from counties) in c:\inetpub\wwwroot\mapExamples\map3.php on line 22
here "the geom from counties" is the select statement. anybody has any idea.
thank you,
shashi.
On Feb 21, 2005 4:29 PM, Shashi Gireddy <gireddy at gmail.com> wrote:
> Hi all,
> Thank you steven and Stephen for helping me in removing label
> overlapping.I really appreciate your help. I am perfectly able to
> join the geometry object with external database. Now I want to make
> everything dynamic, i.e generate layers dynamically from php. I had a
> problem doing so.
>
> I am getting a blank map when i tried to generate layers dynamically
> from php, here is my code
>
> $map_path="c:/ms/map_files/";
> $map_file="Test.map";
>
> $map = ms_newMapObj($map_path.$map_file);
> $layer = ms_newLayerObj($map);
> $lname="counties";
> $layer->set(name, $lname);
> $layer->set(connectiontype, "postgis");
> $layer->set(connection, "user=root password=c3n5u5 dbname=census
> host=localhost");
> $layer->set(data, "the_geom from calhoun_qry1 using srid=-1");
> $layer->set(type, MS_POLYGON);
> $layer->set(status, MS_DEFAULT);
> $class = ms_newClassObj($layer);
> $class->set(name, "class1");
> $class->setexpression("[p001001]");
> $style = ms_newStyleObj($class);
> $style->color->setRGB(10,100,10);
> $i= $map->save("c:/inetpub/wwwroot/tmp/Test.map");
> if ($i != -1){
> $image=$map->draw();
> //$map->{imagecolor}= $map->addColor(0,0,255);
> $image_url=$image->saveWebImage();
> }
>
> here is the error messages:
> Warning: [MapServer Error]: msDrawMap(): Failed to draw layer named
> '(null)'. in c:\inetpub\wwwroot\mapExamples\map3.php on line 22
>
> Warning: [MapServer Error]: msSHPOpenFile(): (c:/ms/map_files/the geom
> from counties) in c:\inetpub\wwwroot\mapExamples\map3.php on line 22
>
> Warning: [MapServer Error]: msSHPOpenFile(): (c:/ms/map_files/the geom
> from counties) in c:\inetpub\wwwroot\mapExamples\map3.php on line 22
>
> Fatal error: Call to a member function on a non-object in
> c:\inetpub\wwwroot\mapExamples\map3.php on line 24
>
> the worning message is not looking relevant c:/ms/map_files/the geom from .....
>
> can anybody help me please....
>
>
> --
> Shashi Kiran Reddy. Gireddy,
> Graduate Assistant,
> CBER, University of Alabama.
> http://www.cs.ua.edu/shashi
> Home: 205-752-5137 Cell: 205-657-1438
>
--
Shashi Kiran Reddy. Gireddy,
Graduate Assistant,
CBER, University of Alabama.
http://www.cs.ua.edu/shashi
Home: 205-752-5137 Cell: 205-657-1438
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