[maplab-users] Error in msSaveImage(): GIF Output is not available

[Paul Spencer]

Vincenzo, you are in a catch 22 ;)  Rosa is a java applet and, until 
quite recently, Java didn't support PNG.  JPEG should work fine.  I 
believe that there is a ROSA version that supports PNG ... not sure what 
you need to do about it though, it may be that you just need to install 
a new java VM?

Cheers,

Paul

patruno wrote:
> Thanks a lot for your suggestion.
> I changed  MS_GIF to MS_PNG and now I can launch the preview.
> (Does MS_JPG work too?)
> 
> Now the problem is the Rosa applet.
> Using maplab-2.0rc2 the Rosa applet appears completely blank No map and no buttons appear in the preview page.
> But if I disable the applet, everything works well. The map appears and I can also browse it using the zoom-in and zoom-out functions.
> 
> Using maplab-2.0rc3 I can preview my mapfile in the applet. The problem is when I try to zoom-in and zoom-out the map.
> When I select a square to zoom in, the applet zoom on a wrong area. Why? And when I zoom-out somewhere, the map always return back 
> to the  starting point.
> 
> (I have the same problem even if I disable the applet).
> 
> Thanks again in advance
> 
> Vincenzo
> 
> ----- Original Message ----- 
> From: "Paul Spencer" <pagameba@magma.ca>
> To: "patruno" <patruno@istat.it>
> Cc: <maplab-users@dmsolutions.ca>
> Sent: Thursday, January 30, 2003 2:39 PM
> Subject: Re: [maplab-users] Error in msSaveImage(): GIF Output is not available
> 
> 
> 
>>Vincenzo,
>>
>>I am a little confused about where the red Xs are ... I think you mean 
>>that GIF is not supported by MapScript (but PNG is for example?).  For 
>>PHP, are no image types supported?  Or just not GIF?
>>
>>On windows, PHP does not support GIF by default and I think you'd have 
>>to compile your own php_gd.dll to get it.  On Linux, you probably build 
>>your own GD then it's up to you if GIF is included.   But this will 
>>likely affect both PHP and MapScript so if it's available in one it 
>>should be in the other unless you are using two different GDs for PHP 
>>and MapScript.  In either case, you should be able to work with PNG 
>>images.
>>
>>see my post just now about how the preview.php file may need to be 
>>changed.  The default mapfile doesn't include an image type and so 
>>defaults to GIF.  You should explicitly change it to PNG in the map 
>>object.  Also, I think you need to put the image type in the 
>>configuration files to PNG.
>>
>>Cheers,
>>
>>Paul
>>
>>patruno wrote:
>>
>>>Hi anyone.
>>>
>>>
>>>I've already installed Maplab on WindowsNT platform and at the moment I'm trying to do the same
>>>on Linux RedHat 7.2.
>>>
>>>I think my problem is related to gd library because when I try to view the preview of my mapfile I obtain an error as in the Subject of this post.
>>>If I check the installation information I find a red "X" in Mapscript Information - Supported Image Types - GIF box and in PHP - Supported Image Types - GIF/PNG/JPEG boxes.
>>>
>>>Any Idea?
>>>
>>>(I've installed: PHP4.2.3, GD1.8.4, Mapserver 3.6.4)
>>>
>>>Thanks in advance
>>>Vincenzo 
>>>
>>>
>>>
>>>
>>>
>>>_______________________________________________
>>>Maplab-users mailing list
>>>Maplab-users@dmsolutions.ca
>>>http://lists.dmsolutions.ca/mailman/listinfo/maplab-users
>>>
>>
>>-- 
>>Paul Spencer
>>Applications and Software Development
>>DM Solutions Group Inc.
>>http://www.dmsolutions.ca
>>
>>
>>_______________________________________________
>>Maplab-users mailing list
>>Maplab-users@dmsolutions.ca
>>http://lists.dmsolutions.ca/mailman/listinfo/maplab-users
> 
> 
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