[Mapserver-users] blank images from mapserv cgi, not php/mapscript, shp2img, etc.

[Jan Hartmann]

Jerrit,

You have to set STATUS DEFAULT. This is different in MapServer CGI and 
MapScript: with CGI a layer is shown by default only when STATUS is 
DEFAULT layers with STATUS ON are visible only when specified in the 
URL. In MapScript layers with STATUS ON are visible by default. I don't 
know why this is so; practically everyone (including myself) has 
stumbled over that one.

There is an extensive list of postings on this matter: search for STATUS 
DEFAULT on the user's list. Of course, when you had known that you 
should look for STATUS DEFAULT, you would already have known the answer 
:-) . That's always the problem with searching a mailing list.

Jan

Jerritt Collord wrote:
> For the life of me (yes, after searching archives, etc.) I can't get the
> mapserv CGI to produce anything but blank PNGs... though I can set
> IMAGECOLOR and get a colored blank PNG.
> 
> PHP/mapscript with similar mapfiles and the command line shp2img and
> shp2pdf can produce correct PNGs.
> 
> Both 3.6.5 and 3.7 versions attempted. Both with html TEMPLATE and
> directly with mode=map in the GET. Logging, when enabled, indicates
> "normal execution".
> 
> Thanks,
> 
> Jerritt Collord
> 
> ------
> 
> NAME SHIZZLE
> SIZE 400 400
> STATUS ON
> SYMBOLSET symbols.sym
> EXTENT -5000000 -4000000 3000000 10000000
> UNITS METERS
> SHAPEPATH "/usr/lib/cgi-bin/maps"
> WEB
> IMAGEPATH "/var/www/tmp/"
> IMAGEURL "/tmp/"
> END
> LAYER
> NAME europa_shapes
> TYPE POLYGON
> STATUS ON
> DATA europa
>         CLASS
>                 COLOR 110 50 100
>                 OUTLINECOLOR 200 200 200
>         END
> END
> END
> END
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> 
Jan Hartmann
Department of Geography
University of Amsterdam
jhart at frw.uva.nl