Web GIS is a generic term which should ONLY be applied when no specific web GIS product is identifiable

learn more… | top users | synonyms (1)

3
votes
0answers
28 views

Hexagon binning using Google Maps

I have a bunch of geolocated points that I am looking to cluster on a google map using hexagons. These clusters will be stored in a db for quick retrieval and will be reduced to a single point and ...
1
vote
0answers
38 views

web based GIS geoprocessing vs desktop based GIS geoprocessing [closed]

difference between the WEB and DESKTOP GIS geoprocessing (buffer) what is the main difference in the area of processing speed or retrival speed of output take in case of contour generation from DEM ...
3
votes
3answers
102 views

Best practice to perform raster map algebra in open source web GIS?

Map algebra for raster is easy with ArcGIS Raster Calculator (or QGIS). I had thought this would be easy with web GIS servers such as GeoServer and MapServer plus OpenLayers etc. as well. What I want ...
2
votes
4answers
116 views

Crowdsourcing points by on-click to web map with moderation?

I want to build a really lightweight web map interface where a user can click anywhere on a map, create a point, type in a comment -- ideally all via Facebook, but I don't want to get ahead of myself ...
1
vote
0answers
51 views

Implement a least cost path in a graph

I am trying to produce a routing functionality in a web-GIS that, given a start and an end point, will retrieve the least cost path taking into account points along edges representing major costs, ...
6
votes
2answers
1k views

Building cartograms using Web GIS?

I would like to build a cartogram map using Web GIS. I have a basemap and a set of raw data in excel. I wondered what are the steps to build up a cartogram map using Web GIS? Note: Originally ...
8
votes
3answers
3k views

Editing PostGIS/GeoServer data via web?

I've got PostGIS installed and would like to create a web application to do some simple edits: Draw manually (over a Basemap) points, lines and polylines, using snapping points (points, end of ...
3
votes
3answers
680 views

What is Geonode ? What all can be achieved using it?

Ok i have searched the site and did not find enough information concerning regarding what is a Geonode so i really thought i may ask everyone who has used it to give their opinion. I am trying to set ...
10
votes
1answer
1k views

Crowdsourcing: Alternatives to Ushahidi

We all know that Ushahidi offers a versatile solution for crowdsourcing information and its effective depiction in maps. I am interested to know if there is any application(free and open source) on ...
7
votes
4answers
249 views

Case studies of Participatory Spatial Planning

I am wondering if you know any well implemented geoportals for Participatory Spatial Planning. I am looking for the one related to environmental protection or connected somehow with the topic (but of ...
4
votes
1answer
807 views

Geo-Tagged Tweets and Twitter API

When I do a timeline query using the Twitter API... http://api.twitter.com/1/statuses/user_timeline.xml?screen_name=MyTwitterName The geographic component of the reply looks like this: ...
22
votes
5answers
69k views

Display a local file in Google Maps

How can I get a KML/KMZ file to display on Google Maps without a public facing web server?