[Cartoweb-users] ExportPdf Problems with AGG Rendering

[Bruno Friedmann]

Just check if you have any image file with transparency (16/24bits).
It's supported by mapserver/agg but NOT by the fpdf library without big hacks.

Soluce is use a special non transparent file (logo,whatever you use) for printing.


Dahinden Adrian wrote:
> Hi list
> 
>  
> 
> I have troubles with the exportPdf plugin. In one of my project I only can print with a resolution of about 120dpi. When I choose a higher resolution, the process of generating the PDF breaks off after a few seconds and the browser returns an empty white site.
> 
> Some time ago I changed the Rendering engine from GD to AGG. I suspect that there is a context between the new rendering and the printing problem.
> 
>  
> 
> Things I did to solve this issue:
> 
> -          changed back to GD rendering -> this solves the problem! but I want to be able to printing with more than 120dpi by AGG rendering
> 
> -          increased the max_execution_time in /etc/php5/cgi/php.ini to 30 seconds. -> the breaking is always before this limit
> 
> -          the very strange thing is, that in other CartoWeb Projects (also running with AGG) I don't have this problem
> 
>  
> 
> Here is the beginning of my mapfile:
> 
>  
> 
> MAP
> 
>   NAME "vs-geo"
> 
>   EXTENT 480000 80000 800000 280000
> 
>   IMAGETYPE PNG
> 
>   IMAGECOLOR 255 255 255
> 
>   STATUS ON
> 
>   UNITS METERS
> 
>   FONTSET "fonts.conf"
> 
>   SYMBOLSET "vs-geo.sym"
> 
>   SHAPEPATH "/var/local/cartoweb/"
> 
>  
> 
>   OUTPUTFORMAT
> 
>     NAME png
> 
>     DRIVER AGG/PNG
> 
>     MIMETYPE "image/png"
> 
>     IMAGEMODE RGB
> 
>     EXTENSION "png"
> 
>     FORMATOPTION "INTERLACE=OFF"
> 
>   END
> 
>   
> 
>   OUTPUTFORMAT
> 
>     NAME jpeg
> 
>             DRIVER AGG/JPEG
> 
>             MIMETYPE "image/jpeg"
> 
>     IMAGEMODE RGB
> 
>             EXTENSION "jpg"
> 
>   END
> 
>   
> 
>   ........
> 
>  
> 
> Has anybody experiences of printing with AGG rendering? Are there any important settings which I must consider?
> 
>  
> 
> Thanks for your help.
> 
>  
> 
> Regards
> 
> Adrian Dahinden
> 
>  
> 
> ********************************************
> 
> Dütschler & Naegeli
> 
> Vermessung + Geoinformation AG
> 
> Fliederweg 11, Postfach
> 
> 3601 Thun
> 
>  
> 
> Telefon 033 / 225 40 50
> 
> Fax     033 / 225 40 60
> 
>  
> 
> mailto:a.dahinden at geo-thun.ch
> 
> http://www.geo-thun.ch
> 



-- 

     Bruno Friedmann