[OpenLayers-Users] Mapserver and Openlayers - Pink Tiles

[Richard Greenwood]

On Wed, Apr 15, 2009 at 3:43 PM, Martijn Senden
<martijnsendenspam at gmail.com> wrote:
> Hi again,
>
> Thanks!! (As I had already e-mailed to the list, (via the forum)), I had
> included a directory statement for the for geoviewerbin alias:
>
> # Path to cgi-bin folder
> Alias /geoviewerbin "C:\OSGeo4W/bin"
>
> # Settings for access to geoviewerbin folder
> Directory "C:\OSGeo4W/bin">
>     AllowOverride None
>     Options Indexes FollowSymLinks Multiviews
>     Order allow,deny
>     Allow from all
> </Directory>
>
> I added your statement to this file, but that didn't work (problem remains
> the same). I then commented out the above statement, so only your statement
> remained. After restarting Apache I then got this error-message when I
> pasted the pink-tile-url into my browser:
>
> msLoadMap(): Unable to access file. (/geoviewermaps/spoortunnel.map)
>
> It seemed to be doing something and I thought the reference to the mapfile
> was wrong and that's what caused the error. I changed it to the absolute
> filepath "c:/osgeo4w/apps/geoviewer/maps/spoortunnel.map". I no longer get
> pink images! I do get white images however.... This is one of the white
> images' url:
>
> http://localhost/geoviewerbin/mapserv.exe?map=c%3A%2Fosgeo4w%2Fapps%2Fgeoviewer%2Fmaps%2Fspoortunnel.map&mode=map&map_imagetype=png&mapext=82750+447046.875+84078.125+448375&imgext=82750+447046.875+84078.125+448375&map_size=256+256&imgx=128&imgy=128&imgxy=256+256
>
> So, how can the images be white? I think I'm almost there.....
>
> Best regards,
> Martijn Senden.

Yes, it sounds like you are getting close. White tile(s) suggest that
there is nothing there to draw. check your extents and test those
extents in shp2img.

Good luck,
Rich



> 2009/4/15 Richard Greenwood <richard.greenwood at gmail.com>
>>
>> On Wed, Apr 15, 2009 at 1:43 PM, Martijn Senden
>> <martijnsendenspam at gmail.com> wrote:
>> > Thanks! I tried opening the exe (saved as png, gif, jpeg and tiff) in
>> > Gimp,
>> > but was not able to. It seems not to be an image?
>> >
>> > This is the url I pasted:
>> >
>> >
>> > http://localhost/geoviewerbin/mapserv.exe?map=%2Fgeoviewermaps%2Fspoortunnel.map&mode=map&map_imagetype=png&mapext=84078.125+447046.875+85406.25+448375&imgext=84078.125+447046.875+85406.25+448375&map_size=256+256&imgx=128&imgy=128&imgxy=256+256
>> >
>> > It does say ........&mode=map&........    ?
>> >
>> > Does the url seem strange to you?
>>
>> geoviewerbin is probably not configured to serve CGI (to execute CGI
>> programs). Are you using Apache or IIS? In either case you must
>> instruct your web server to execute CGI in the geoviewerbin directory.
>> In Apache httpd.conf something like:
>>
>> ScriptAlias /geoviewerbin/ "C:/path/to/geoviewerbin/"
>> <Directory "C:/path/to/geoviewerbin/">
>>         AllowOverride None
>>         Options None
>>         Order allow,deny
>>         Allow from all
>> </Directory>
>>
>> Then restart Apache. In IIS you do it from the GUI.
>>
>> --
>> Richard Greenwood
>> richard.greenwood at gmail.com
>> www.greenwoodmap.com
>
>



-- 
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com