Questions tagged [open-source-gis]

Software for which the original source code is made freely available and may be redistributed with or without modification.

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31
votes
5answers
3k views

Are there open source alternatives to ArcCatalog?

I'm looking for open source alternatives to ArcCatalog. The software should run on both Win and Linux and support the usual file formats (shp, kml, gml, ...) and databases (especially PostGIS, ...
14
votes
2answers
5k views

How to calculate average slope in a grid?

This is actually a two part question: Which methods are there to calculate average slope by unit (say km²) for a given area? Are there any special requirements on the data - like additional ...
14
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2answers
4k views

How to import esri Personal Geodatabase (.mdb) to PostGIS on Linux

We have esri Personal Geodatabases that we need to import into PostGIS. Ultimately, we'd like to allow people to upload an MDB on a web server, and have it import the layers into PostGIS. On ...
23
votes
5answers
4k views

Rendering overlapping lines

I am making a map containing information about public transportation: busses, trams, etc. The map will have a layer containing for example the tram lines. Each line has its own colour, and is ...
6
votes
3answers
18k views

Alternative to ArcGIS Desktop for software development? [closed]

I'm looking for a free and reasonably licensed alternative to ArcGIS Desktop (or maybe just ArcGIS Server). I'm quite new to GIS, so I'll state some of the things I want to be able to do and you can ...
9
votes
7answers
885 views

Seeking highly customizable GIS platform? [closed]

I was educated in GIS using ArcGIS (Desktop and Workstation) and researched with it with (very) short peeks at MapInfo and uDig . During that time, I was satisfied with the program as I used ...
6
votes
4answers
17k views

ArcGIS Server vs Open Source software [closed]

What do you think what are the advantages and disadvantages (of both)? Apart from fact that open source software is free to use. I mean capabilities, functionality, workload to GIS servers, easy ...
5
votes
3answers
4k views

GeoServer in Windows x64 - war file installation versus Windows installer?

After running a GeoServer war file installation in Tomcat for some time in Windows Server 2008 x64, I've become increasingly unhappy with Tomcat's chronic memory issues and leaks. Now that the ...
8
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5answers
5k views

Anybody know any WMS clients for Android?

I am interested in finding a project (with source) for a WMS client for Android.
-4
votes
2answers
432 views

Can I get some recommendations for an Open Source Trouble Ticket system? [closed]

When I research trouble ticket systems a lot of them are for programming. I am interested in something more general purpose. Some things that would be a bonus would be: -Integrated with Drupal -...
12
votes
5answers
692 views

List of desktop GIS FOSS case studies

I think we should create a list of best desktop GIS FOSS case studies. First of all this list will be useful to anyone who considers desktop GIS FOSS for a project as an viable alternative.
7
votes
7answers
2k views

Examples of thematic mapping web services built with FOSS GIS

What are some current examples of web services serving thematic mapping based on free and open source software? The thematic mapping could be in the form of choropleth or point layers. It would be ...
42
votes
9answers
25k views

Open source methods for kriging?

I have a point dataset which I'd like to Krige, ideally using an open-source software package. If possible, I'd also like to choose the semi-variogram model during the process to improve the ...
3
votes
4answers
860 views

How stable is MapWindow on a 64 bit machine

One of my favorite ArcGIS extensions (N_SPECT) is no longer going to be supportd under ArcGIS 10. It will be totally rewritten as a MapWindow plug-in, so I need to get up-to-speed with that in case a ...
12
votes
4answers
3k views

Best open source operating system for open source GIS?

I'm wanting to get into open source GIS, and it looks like PostGIS on Postgres is a good DBMS to go with, and there are plenty of posts on desktop editors. What I haven't come across (and forgive me ...
4
votes
6answers
1k views

flex/AIR based SLD generator?

Styling layers in GeoServer can be tedious to say the least. While Styler can relieve some of that tedium, it doesn't yet work in chrome. It can wreck existing styles if not carefully used and still ...
9
votes
3answers
2k views

Looking for a fast, open-source raster cost-distance function to use in code

I've been scouring the internet for a fast, open-source cost-distance function that I can embed inside my code. The functionality should basically work like the ArcGIS implementation where I can ...
3
votes
5answers
2k views

Ways to load OS VectorMap data

Us lucky fellows in the UK have been able to access public geodata from Ordance Survey under an open licence since April this year. Some of the datasets, including VectorMap, are broken into 100 ...
33
votes
7answers
4k views

Work flow for georeferencing imagery using open source tools?

Does anyone have a recommendation for a work flow for georeferencing high resolution aerial photography using open source tools? Comparison of user friendliness and robustness between Quantum GIS ...
8
votes
2answers
1k views

Are there any open source mapping APIs/toolkits for drawing axes,labels,graticules etc?

I tried to post a more generic question to meta, but it's my first question, so I didn't have a reputation yet. The first question I have is whether this is an appropriate place to ask questions ...
1
vote
1answer
1k views

psycopg2 error with QGIS 1.5

So I just installed QGIS 1.5 using the windows installer not the osgeo4w one and now any plugins that need access to PostgreSQL databases don't seem to work, they all throw a: "Couldn't import Python ...
10
votes
6answers
3k views

Open source tools for creating and publishing animated web maps?

I am interested in creating animations from observations or model predictions and then displaying these animations in a web-based viewer such as OpenLayers. The best example I have found of this ...
9
votes
5answers
5k views

Is there a good library for WMS “Tile Servers”?

I am looking for WMS Tile Servers that I can consume with "OpenLayers". One: Are there any good library / resources online that collate WMS tile servers or where is a good place to start looking? (...
7
votes
6answers
2k views

Converting DEM into areas of “flatness”, with arbitrary fill/cut to area ratio? [closed]

I want to find areas of relative "flatness" in a DEM. How can I find flat areas? I want to find a neighbourhood of contiguous cells that have an elevation variance that is within a certain ...
10
votes
1answer
816 views

Features in commercial GIS software missing in FOSS GIS?

For example, a program I use (TransCAD) has the ability to do travel time matrices based on minimal data input, which is really useful if you're looking at doing back of the envelope type calculations....
35
votes
12answers
11k views

Seeking alternatives to pgRouting for open source routing / network analysis?

I was wondering if there are any alternatives to pgRouting tools. Thinking about it for a bit, I think the only alternative is to use R or RPY to do the analysis. Basically I'm trying to solve ...
11
votes
5answers
3k views

Are there any open source tools to detect and fill sinks on a DEM? [closed]

Are there any open source or inexpensive tools to detect and fill sinks on a DEM? ArcGIS Spatial Analyst is just out of my price range.
16
votes
3answers
3k views

Is there a decent open source map-editor?

I would like to have an open source map editor for drawing a city map? I don't want to use OpenStreetMap. It will be a custom map project. I don't need an advanced GIS system, but a simple map-editor,...
21
votes
3answers
3k views

What are the differences between spatial databases? [closed]

What is the difference between Oracle Spatial, PostGIS, SQLServer2008, SpatiaLite, and MySQL in terms of their spatial support. Are there specific use cases where each shines. What might you want to ...
1
vote
5answers
2k views

Is there any open source library for reading OCAD files?

I would like to read map files created by OCAD (.ocd). The file format specification is open and available on the web page, but it's binary and complex. Is there an open source library that can be ...
58
votes
11answers
47k views

Seeking Free and Open Source GIS Desktop packages?

Can someone give me a list of free and open source GIS desktop packages?
18
votes
4answers
13k views

Free GIS software for orthorectification?

Could someone recommend a free and/or open source GIS application that can orthorectify map images?