[ms4w-users] regression in phpmapscript in latest ms4w release?

Jeff McKenna jmckenna at dmsolutions.ca
Thu Mar 20 09:11:25 EDT 2008

Hello Oliver,

The only thing I can add is that here is an old ticket related to 
pasteImage transparency: http://trac.osgeo.org/mapserver/ticket/463

I know that the phpmapscript developers live on the 'mapserver-dev' 
mailing list (join at 
http://lists.osgeo.org/mailman/listinfo/mapserver-dev) so you might also 
try your question there.

In terms of MS4W, the GD library version that MapServer was built with 
was upgraded to 2.0.35 in MS4W 2.2.7.  I'm not sure how/if that would 
affect what you are talking about though.  Best to ask this question 
(it's a good one and it sounds like you have done your homework) on the 
mapserver-dev list.



Oliver Christen wrote:
> Hi,
> I have observed some kind of regression in the way the php_mapscript
> function "pasteImage" behave in a php_mapscript compiled for Mapserver 
> 5.0.2
> / PHP 5.2.5 (typicaly the one available in the latest MS4W package)
> In this version, the pasteImage only handle the transparency correctly for
> 8bit images (as it is clearly stated in the documentation "Note" at the
> bottom
> http://mapserver.gis.umn.edu/docs/reference/phpmapscript-class/classes/imageobj) 
> BUT, until before these versions of php/mapserver, the transparency worked
> fine with 16bit images (jpeg for example)
> The latest working version I have is a php_mapscript compiled for Mapserver
> 5.0.2 / PHP 5.2.0
> So, my questions are:
> was it really normal for the pasteImage function to handle transparency for
> 16bit images until recently ? because the "Note" seems to imply it is not.
> was there any recent code modification in php mapscript's function
> pasteImage ?
> what could have possibly changed between php 5.2.0 and 5.2.5 that would
> change the behaviour of the pasteImage function ?
> I looked at php's changelog but couldnt find any clue beside the fact libGD
> was updated to 2.0.35 in PHP 5.2.2, but again I couldnt notice any
> significant info in libGD changelog.
> I know this is not specificaly a MS4W problem but the problem was 
> observed using it and any help would be welcome.
> thanks in advance
> Oliver Christen

Jeff McKenna
DM Solutions Group Inc.

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