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4
votes
1answer
3k views

Converting tax map polygons from Shapefile to table of map number and corner coordinates

Fairfax County, Virginia provides a Shapefile here which shows the boundaries of the tax maps as polygons. Each polygon simply consists of four corners, and what I'd like to do is create a table ...
4
votes
1answer
1k views

OpenLayers Style Question … not working in IE

I'm trying to use OpenLayers to produce a map I'm using the following to style a layer in the map. It seems to work fine in Firefox but I get javascript error in IE 'symbolizer' is null or not an ...
3
votes
2answers
826 views

Issue Trying to create Zonal Statistics using Gdal and Python.

I am trying to create zonal statistics using Python and Gdal. I have a polygon shapefile and a raster file, and in order to do so, I am using a piece of code I found in StackExchange. The raster and ...
2
votes
1answer
146 views

Permissive Open source planarize algorithm?

Is there a permissive open source implementation out there for a "planarize" algorithm (in the style of arcgis planarize - including user modifiable cluster tolerance)? NB this is not a duplicate of ...
2
votes
2answers
513 views

batch create DEM from contour maps (open source)

I have around 100 shapefiles of contours (1m interval) that I need to turn into DEMs; Is there a way to batch create these mde from contour lines? Using open source preferably.
1
vote
0answers
142 views

Are there any exisiting .NET implementations for WFS that are extendable?

I've been told its a bad idea to implement WFS from scratch: Implementing WFS within .NET Does anybody know of any exisiting .net implementations that I can extend?
0
votes
1answer
253 views

What are the equivalents of ESRI products in open source for Web Mapping? [closed]

I have been using the following licensed products to publish my GIS data on web. web server: windows 2008 R2, GIS desktop: ArcGIS desktop, GIS web server: ArcGIS server, API: ArcGIS API for JS, ...