[mapserver-users] differences in color of rendered point
Dylan Keon
keon at nacse.org
Fri Oct 25 12:16:26 PDT 2002
Hi all,
I'm using PHP Mapscript to query a point layer and render a new
(red-colored) point on top of the queried point. It works ok if I
define the highlighted point as a layer in the mapfile, and then call it
from the PHP script. However, I'm getting strange results if I define
the point in PHP Mapscript instead of in the mapfile. The point is
rendered just fine, but the colors only appear in gray. For example:
$queryClass->set("color", $map->addColor(255,0,0));
This produces a gray point, when it should be red. If I use 0,0,0 I get
a black point, but anything else results in a 127,127,127 gray. Even if
I use something like 134,187,2 the rendered point is still 127,127,127.
Any ideas? I can just use the mapfile-defined point, but I'd like to
figure out what's going wrong with the Mapscript method. Thanks.
Dylan
--------------------
Using PHP 4.1.2 as a CGI, with php_mapscript.so built from the 3.6.1
release. Rendered images are all PNG.
# mapserv -v
MapServer version 3.6.1 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP SUPPORTS=PROJ
SUPPORTS=TTF SUPPORTS=WMS_SERVER INPUT=EPPL7 INPUT=JPEG INPUT=POSTGIS
INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
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