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<p>Hi, I am not using PHP Mapscript, but shouldn't You set the
extent to valid EPSG coordinates for EPSG:3857. IE. <span
class="caption">Projected bounds:</span><br>
-20026376.39 -20048966.10<br>
20026376.39 20048966.10</p>
<p>for global coverage.</p>
<p>/Lars S.<br>
</p>
<div class="moz-cite-prefix">Den 2020-09-20 kl. 18:32, skrev magma:<br>
</div>
<blockquote type="cite"
cite="mid:CAD5A=kf9pFvthb9FKvQopLnCf6vEhCAZxVas-x0dnT4q-EmaaA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi all.
<div><br>
</div>
<div>I have used PHP Mapscript for a few years to render static
images of maps, from data I have in PostgreSQL/PostGIS. A
simplified example of my code looks like this:</div>
<div><br>
</div>
<div><?php<br>
<br>
<font face="monospace">$this->map = ms_newMapObj('');<br>
$this->map->selectOutputFormat('png');<br>
$this->map->imagecolor->setRGB(56, 112, 192);<br>
$this->map->setextent(-180, -90, 180, 90);<br>
$this->map->set('width', 1000);<br>
$this->map->set('height', 600);<br>
<br>
$layer = ms_newLayerObj($this->map);<br>
$layer->setConnectionType(MS_POSTGIS);<br>
$layer->set('name', 'world');<br>
$layer->set('type', MS_LAYER_POLYGON);<br>
$layer->set('status', MS_ON);<br>
$layer->set('connection',
"host={$this->postgis['host']}
port={$this->postgis['port']}
dbname={$this->postgis['db']}
user={$this->postgis['user']}
password={$this->postgis['pass']}");<br>
<br>
// $layer->set('data', "geom FROM (SELECT id, geom FROM
osm_country_polygons) AS a USING UNIQUE id USING
srid=4326");<br>
$layer->set('data', "geom FROM (SELECT id,
ST_Transform(geom, 3857) AS geom FROM osm_country_polygons)
AS a USING UNIQUE id USING srid=3857");<br>
<br>
$class = ms_newClassObj($layer);<br>
$style = ms_newStyleObj($class);<br>
$style->color->setRGB(160, 160, 160);<br>
$style->outlinecolor->setRGB(48, 48, 48);<br>
<br>
header('Content-Type: image/png');<br>
$image = $this->map->draw();<br>
$image->saveImage();<br>
</font></div>
<div><span style="font-family:monospace">?></span><br>
</div>
<div><br>
</div>
<div>Using SRID 4326 works great (the commented line). However
the line below, which is enabled, using 3857 does not work. It
renders an all blue image (<i>$this->map->imagecolor->setRGB(56,
112, 192)</i>).</div>
<div><br>
</div>
<div>Is it not possible to change the projection, or do I need
to set an option in the layer or map object? I have tried to
read and Google this for some time now, but whatever I try
seems to fail for me.</div>
<div><br>
</div>
<div>Most thankful for a good hint/solution.</div>
<div><br>
</div>
<div>// Magnus</div>
</div>
<br>
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</blockquote>
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