There is GeoMajas, but I have never looked at it:
http://geomajas.org/
And there is the "Canvas" HTML element
(http://en.wikipedia.org/wiki/Canvas_element), something I am definitely
going to look into when I have time. See a few GIS-demos at
http://www.canvasdemos.com/type/applications/maps-applications/
and the GnuPlot library, implemented in Canvas:
http://skuld.bmsc.washington.edu/~merritt/gnuplot/canvas_demos/
Perhaps an idea for 3D-MapServer:
http://www.canvasdemos.com/type/applications/3d-applications/
or from the 3D section of the GnuPlot library above.
Jan
On 07/08/10 04:53, Bob Basques wrote:
David,
You could go with something in GeoMoose as well. There is a demo
available that includes drawing tools, you would need to set up your
backend storage though on your own, with your tool of choice, but
these get you half way there. You can see a couple of demo sites with
drawing/edit tools already configured here:
http://geomoose.org/info/demo.html
Both of these demos are available as downloads as well.
bobb
On 7/7/2010 8:50 PM, David Jantzen wrote:
Thanks Steve, I'll check out those projects. I just did a proof of
concept using the approach you describe with OpenLayers and WKT.
Very nifty stuff. Any gotchas to that approach?
On Jul 7, 2010, at 6:34 PM, Lime, Steve D (DNR) wrote:
Take a look at FeatureServer (or perhaps the WFS-T support in
GeoServer or Tiny WFS). Such tools would facilitate the writing of
geometries
to a data store (e.g. PostGIS) that MapServer could read from. Of
course you could write your own tool to do that. We've used rails
and serialized
geometries to/from OpenLayers as WKT easy enough.
Steve
________________________________________
From: [email protected]
[[email protected]] On Behalf Of David Jantzen
[[email protected]]
Sent: Wednesday, July 07, 2010 6:13 PM
To: [email protected]
Subject: Re: [mapserver-users] Allowing users to draw polygons on
MapServer maps
Hmm, this looks close to what I want:
http://openlayers.org/dev/examples/draw-feature.html
Any idea how I would export the polygons to a shapefile/database?
What about loading them from a previous session?
Thanks,
David
On Jul 7, 2010, at 2:50 PM,<[email protected]>
<[email protected]> wrote:
On Jul 7, 2010, at 5:19 PM, ext David Jantzen wrote:
Hi All,
I've never used MapServer before, so this is definitely a newbie
question. I've read a bunch of the documentation and FAQ, but I
haven't yet found a clear answer to this question:
Can I use MapServer to host a map, on which my clients can draw
polygons and export them as shapefiles or into a database? If
not, is there another (open source) product that can?
Seems like one of the scripting toolkits could do this, but not
without significant custom front end work.
I think this is approximately accurate. Personally, I would
probably use
GeoDjango/OpenLayers for this kind of task.
Regards,
--
Christopher Schmidt
Nokia
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