[mapserver-users] RE: Documentation for serving large raster images using tile cache.

Roger André randre at gmail.com
Tue Oct 28 15:17:08 PDT 2008


Hi Asif,

Ok, here's a new mapfile that you can try.  Change your request to point to
this one, and see if you get an image back in your browser.

Roger
--

On Tue, Oct 28, 2008 at 2:06 PM, Asif Memon <mmemon at sdsc.edu> wrote:

>  I believe one of the "END" was missing at the end of the file, I have
> added that. This resolves the earlier error and generated a new one - msDrawMap():
> Image handling error. Unable to initialize image. msPrepareImage(): General
> error message. Image dimensions not specified. msCalculateScale(): General
> error message. Invalid image extent, minx=-1.000000, miny=-1.000000,
> maxx=-1.000000, maxy=-1.000000. mapserv(): Web application error. No way to
> generate map extent.
>
>
>
> Any help is much appreciated?
>
>
>
> Sincerely,
>
> Asif Memon
>
>
>
> *From:* Asif Memon
> *Sent:* Tuesday, October 28, 2008 1:48 PM
> *To:* 'Roger André'
> *Cc:* 'mapserver-users at lists.osgeo.org'
> *Subject:* RE: [mapserver-users] RE: Documentation for serving large
> raster images using tile cache.
>
>
>
> No, TileCache didn't come with that. I am trying to view any image right
> now to see an example of serving an image into Mapserver.
>
>
>
> I changed the path of the WMS URL(
> http://localhost:9090/cgi-bin/mapserv.exe?map=C:\Asif\work\devtools\MMS\ms4w\Apache\htdocs\mapdemo\demo.map&mode=map<http://localhost:9090/cgi-bin/mapserv.exe?map=C:%5CAsif%5Cwork%5Cdevtools%5CMMS%5Cms4w%5CApache%5Chtdocs%5Cmapdemo%5Cdemo.map&mode=map>)
> and the error I am getting now is - msLoadMap(): Premature End-of-File.
>
>
>
> I ran the GDAL tile cache command on a .tif image to create the shape files
> using (gdaltindex doq_index.shp doq/*.tif). Also, I made some changes in the
> map file. Attached is the most updated map file along with the shape files.
>
>
>
> Could you please take a look at it.
>
>
>
> Sincerely,
>
> Asif Memon
>
>
>
> *From:* Roger André [mailto:randre at gmail.com]
> *Sent:* Tuesday, October 28, 2008 1:22 PM
> *To:* Asif Memon
> *Subject:* Re: [mapserver-users] RE: Documentation for serving large
> raster images using tile cache.
>
>
>
> Sorry I assumed that the index.html file was the one that came with
> TileCache.  Is that not correct?
> --
>
> On Tue, Oct 28, 2008 at 1:02 PM, Asif Memon <mmemon at sdsc.edu> wrote:
>
> Thanks for your reply.
>
>
>
> Attached is the map file. I do not have the any tilecache.cfg file. From
> the error(msLoadMap(): Unable to access file. (/path/to/demo.map)), it
> appears the map file is not accessible.
>
>
>
> Sincerely,
>
> Asif Memon
>
>
>
>
>
> *From:* Roger André [mailto:randre at gmail.com]
>
> *Sent:* Tuesday, October 28, 2008 12:53 PM
> *To:* Asif Memon
>
> *Cc:* mapserver-users at lists.osgeo.org
>
>
> *Subject:* Re: [mapserver-users] RE: Documentation for serving large
> raster images using tile cache.
>
>
>
> Hi Asif,
>
> Are you able to view a map when you go to "
> http://localhost:9090/cgi-bin/mapserv.exe?map=/path/to/itasca.map&mode=map"
> ?  Also, can you send a copy of your mapfile, and of your tilecache.cfg
> files?
>
> Roger
> --
>
> On Tue, Oct 28, 2008 at 11:15 AM, Asif Memon <mmemon at sdsc.edu> wrote:
>
> Hi Roger,
>
>
>
> I followed the instructions on the documentation and setup the map server
> and demo, when I try to execute the index.html, I get this error - msLoadMap():
> Unable to access file. (http://localhost:9090/mapdemo/itasca.map)
>
>
>
> Do you know what could be it?
>
>
>
> Sincerely,
>
> Asif Memon
>
>
>
> *From:* Roger André [mailto:randre at gmail.com]
> *Sent:* Monday, October 20, 2008 1:38 PM
> *To:* Gregor Mosheh
> *Cc:* Asif Memon; mapserver-users at lists.osgeo.org
> *Subject:* Re: [mapserver-users] RE: Documentation for serving large
> raster images using tile cache.
>
>
>
> Hi Asif,
>
> Best thing to do is take a look at these 2 docs first:
> - http://mapserver.gis.umn.edu/docs/howto/raster_data
> - http://tilecache.org/readme.html
>
> Once you have the ability to see your raster in MapServer via a "mode=map"
> request, then you will have to decide how you wish to view your data
> afterwards.  There are different things to do in TileCache depending on
> whether you wish to view the data in OpenLayers, or over Google Maps/MS VE.
> --
>
> On Mon, Oct 20, 2008 at 12:01 PM, Gregor Mosheh <gregor at hostgis.com>
> wrote:
>
> Asif Memon wrote:
>
> Could someone please point me to the documentation for serving large (2GB
> to 3GB) raster images using tile cache. I want to use Minnesota Map Server
> and GDAL to achieve this.
>
>
>
> You'll want to ask the TileCache list about that, likely. Once you have
> MapServer actually serving up the imagery, get your client using MapServer
> or WMS (I like OpenLayers, myself). Then install TileCache and change the OL
> app to use TC's URL instead of MapServer's. Easy.
>
> But you may want to install OpenLayers and get it working with MapServer
> first, then hit up the OL and TC mailing lists.
>
> --
> Gregor Mosheh / Greg Allensworth    BS, A+, Network+, Security+, Server+
> System Administrator, Lead Programmer
> HostGIS development & hosting services, http://www.HostGIS.com/
>
> "Remember that no one cares if you can back up,
>  only if you can restore." - AMANDA
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>
>
>
>
>
>
>
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