[mapserver-users] Allowing users to draw polygons on MapServer maps

[Jan Hartmann]

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: mapserver-users-bounces at lists.osgeo.org 
>>> [mapserver-users-bounces at lists.osgeo.org] On Behalf Of David Jantzen 
>>> [djantzen at ql2.com]
>>> Sent: Wednesday, July 07, 2010 6:13 PM
>>> To: mapserver-users at lists.osgeo.org
>>> 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,<christopher.schmidt at nokia.com> 
>>> <christopher.schmidt at nokia.com>  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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>
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