Dynamic point layer via mapscript
ealpert at DIGITALGLOBE.COM
Wed Dec 29 16:30:34 EST 2004
I usually call $layer->close() before I draw.
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at lists.umn.edu] On
Behalf Of Camden Daily
Sent: Wednesday, December 29, 2004 2:27 PM
To: MAPSERVER-USERS at lists.umn.edu
Subject: [UMN_MAPSERVER-USERS] Dynamic point layer via mapscript
Hello all. I'm trying to do something which seems like it should be
simple, but for some reason it isn't working for me.
I have a .map file, and I'm trying to add a set of points to the map
using mapscript. My code doesn't make mapserver crash or anything, but
the points don't show up on my rendered map.
The code I use to try to add a symbol for a specific point is:
$layer = ms_newLayerObj($map);
$class = ms_newClassObj($layer);
$class->label->set("font", "arial"); $class->label->color->setRGB(255,
$style = ms_newStyleObj($class);
$symbol = $map->getSymbolByName("square"); $style->set("symbol",
$symbol); $style->set("size", 8); $style->color->setRGB(255, 0, 0);
$image = $map->prepareImage();
$point = ms_newPointObj();
$point->draw($map, $layer, $image, 0, "test"); $layer->draw($image);
$image = $map->draw();
$image_url = $image->saveWebImage('MS_JPG', 1, 1, 0);
My map file is projected as latlong, and my $latitude and $longitude
values are in dd, the same as the map file extent. If anyone has any
help on why my code might be failing, or could point me to a working
example, that'd be great. I've scoured the archives and google, but
nothing I've seen seems to work for me.
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