Free and open source software for geospatial
7
votes
1answer
210 views
How to rectify polygon-shapes in Quantum-GIS? [duplicate]
I have some polygon-shapes in qgis-1.7.0 and want to ensure that every polygon is a rectangle. See image below.
Is there any way I can do this in quantum-gis (or any other f/oss)? Or how can I ...
18
votes
3answers
563 views
What are the differences between spatial databases?
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 ...
0
votes
0answers
37 views
Tectonic / G-Plates, export of shapes [closed]
Whatever I've tried, neither can I compile a running "gplates" on Ubuntu 12.04, nor can I make the windows version run using wine or similar windows emulators.
So what I'd like to ask/please:
Is ...
2
votes
1answer
56 views
Are there any open source packages to help process network links?
I'm trying to find an open source package that can process KML-based network links. I am looking for more than a parser -- more along the lines of setting up timers for interval refreshing, handling ...
1
vote
1answer
102 views
Open Source Engine for Geocoding
I would create a service to geocode from existing shapefiles. I know that ArcEngine does not allow the creation of Windows Services. Is there an open source option someone could recommend?
35
votes
4answers
1k views
What are the FOSS equivalents to these ArcGIS products?
I'm a long-term user of ESRI software, and I now have a need to use free and open source software.
I've been reading about Open Layers, PostgreSQL, PostGIS, GeoServer and MapServer but I can't find ...
5
votes
3answers
110 views
How to create shaded relief from xyz file?
I have a DEM (xyz format) which I want to apply to a "flat" map texture to create a shaded relief, preferably with software that is available for free.
10
votes
3answers
211 views
How to improve drawn shapes in Quantum-GIS?
I have a polygon-shape in qgis-1.7.0 and want to fix overlays and gaps between the edges of adjacent polygons. See image below.
Is there any automated way to do this in quantum-gis? Or any other ...
11
votes
7answers
2k views
Free tool to simplify parcel shapefiles?
Is there any tool available which let's me run millions of parcel shapefiles and simplify them?
2
votes
1answer
129 views
Is it possible to mimic ArcPublisher with PDF or similar?
I want to provide mapping output in a format that mimics the delivery provided by ArcPublisher and wonder if anybody has any experience in this.
For instance, the PDF format now supports layers ...
12
votes
5answers
1k views
Why the GIS industry is always ruled by two options only, namely ESRI products and OSGeo projects?
I always wonder, why in GIS industry there are merely two major options available. Although there are many other proprietary software products for GIS, their market share is well below ESRI products ...
40
votes
19answers
4k views
What are some Free and Open Source GIS Desktop packages
Can someone please give me a list of free and open source GIS desktop packages?
9
votes
1answer
255 views
Any experiences or “gotchas” integrating Whitebox GAT (free and open) with the ArcMap UI?
I wrote a number of ArcGIS VBA automations in grad school; however, they're fully dependent on the ESRI SpatialAnalyst extension, which is not only closed-source but expensive to the point of ...
10
votes
4answers
1k 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 ...
3
votes
1answer
90 views
Looking for HowTos or Examples of Presentation Platforms targeting Management/Clients
Any good ideas about using Google Earth to present self contained geospatial data&app to a client or senior management?
The broader issue being explored here is that many of our clients are not ...
21
votes
4answers
1k 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, ...
5
votes
1answer
606 views
How to draw or edit curved lines in free GIS?
I'm searching informations about drawing simple curved arrow lines into free GIS like QGIS, in this problem data geometry is CIRCULARSTRING ( a type which exists in latest postgis version)
It seems ...
11
votes
5answers
437 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
1k 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 ...
9
votes
7answers
737 views
Are there any “highly customizeable” GIS platforms out there or am I doomed to manual labor?
I'm new to this site which I find useful and refreshing until now.
And to my question ( WARNING: it's a bit long, so you can skip right to the question two paragraphs down).
I was educated in GIS ...
13
votes
5answers
1k 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 ...
10
votes
3answers
345 views
What are some of the features available in non-FOSS GIS software that you'd like to see in your favorite 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 ...
