I am finding that createLegendIcon returns a different legend item than what is used in the map output when using scaledenom in the style.
Below is a test script that produces what I am talking about.
The script will create 4 images.
map_scale_873.png -> map->draw output with a 873 scaledenom
map_scale_2618.png -> map->draw with a 873 scaledenom
legimg_scale_873.png -> createLegendIcon output with a 873 scaledenom
legimg_scale_2618.png -> createLegendIcon output with a 873 scaledenom
I was expecting that the legend image at the 873 scale, legimg_scale_873.png
would match the map output, map_scale_873.png. Can anyone see a problem, is
this a bug, or is this expected behavior?
<?php
$mapstr = <<<EOT
MAP
NAME AERIAL
EXTENT 100 100 400 400
SIZE 100 100
UNITS FEET
LAYER
NAME 'TEST'
STATUS ON
TYPE LINE
FEATURE
WKT 'LINESTRING(250 250, 250
500, 500 500, 500 250,250 250)'
END
CLASS
NAME "Boundary"
STYLE
WIDTH 4.0
MAXWIDTH 6.0
COLOR 150 255
150
MAXSCALEDENOM
1000
END
STYLE
WIDTH 2.0
MAXWIDTH 2.0
COLOR 0 0 0
PATTERN 20.0
10.0 5.0 10.0 END
MAXSCALEDENOM
1000
END
STYLE
WIDTH 4.0
MAXWIDTH 4.0
COLOR 150 255
150
MINSCALEDENOM
1001
END
END
END
END
END
EOT;
$map = ms_newMapObjFromString($mapstr);
$map->selectOutputFormat('png');
$img=$map->draw();
$name=round($map->scaledenom);
$img->saveImage("map_scale_$name.png");
$tmpLay =$map->getLayer(0);
$tmpclass = $tmpLay->getClass(0);
$tmpImg = $tmpclass->createLegendIcon(50,50);
$tmpImg->saveImage("legimg_scale_$name.png");
$map->setextent(200,200,300,300);
$img2=$map->draw();
$name=round($map->scaledenom);
$img2->saveImage("map_scale_$name.png");
$tmpImg->saveImage("legimg_scale_$name.png");
?>
Thanks,
Paul
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