$map->extent->set method behavior

[Daniel Morissette]

"Doyon, Jean-Francois" wrote:
> 
> Hello everyone ...
> 
> I'm trying to set new extents for a map using PHP/Mapscript, and noticed
> that
> the set() method called on the extent of a map object seems to loose the
> decimal places.
> 

Jean-Francois,

As Assefa pointed in an Email to you earlier, there was a bug in the PHP
wrapper: the argument was treated as an integer and that explains the
loss of decimal places that you experienced.

Until the fixed version is available, you can use:

   $map->extent->setextent($minx, $miny, $maxx, $maxy);

the setextent() method does not have the problem that set() has.

The map class also has a setextent() method.  The difference is that
$map->setextent() will correct the extents (width/height ratio) before
setting the minx,miny,maxx,maxy values ... it's a correction that
MapServer does automatically anyways before redrawing the map.  So
immediately after the call to $map->setextent() you can look at the
extent values ($map->extent->minx, etc.) to find out exactly what
extents the lower-level MapServer will use when it will redraw the map.

-- 
------------------------------------------------------------
 Daniel Morissette                       danmo at videotron.ca
              http://pages.infinit.net/danmo/
------------------------------------------------------------
  Don't put for tomorrow what you can do today, because if 
      you enjoy it today you can do it again tomorrow.