Tagged Questions

Free and open source software for geospatial

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1
vote
0answers
19 views

Free And Open Source Software Tools to orthorectify Pleiades imagery [duplicate]

Are there Free And Open Source Software Tools to orthorectify Pleiades, Worldview And Quickbird imagery as we do with COST tools such as ERDAS Imagine, PCI, ENVI, etc.?
1
vote
0answers
47 views

Looking for free tools to automatically generate spatial data catalogue

I've recently inherited a whole bunch of spatial data (mostly shapefiles but some .gdbs) which relate to a bunch of different cities. I'm looking for a way to take an inventory of what data I've got ...
2
votes
1answer
58 views

Can you run GIS Squirrel next to SDE?

My company has SDE to run our webmapping system. We want our arcbasic license users to be able to edit this data without dropping 30k for 6 users on upgrading to standard. Can we run squirrel next ...
3
votes
2answers
318 views

How to calculate distances between addresses and cities and coast line?

I am totally new to GIS, and so I apologize if my question is not clear enough. My basic problem is the following: I have about 160,000 Danish addresses with longitude and latitude for each address. ...
5
votes
6answers
1k views

Open source/free software for generating a 3D view of mapping?

Is there any software that will generate a 3D view given a DTM/height data and raster mapping, and output an image in a printable resolution? I am looking for something similar to what you'd find in a ...
16
votes
4answers
361 views

Are FOSS4G conference presentations available online?

I'm wondering if anyone has knows of links to a website(s) where previous FOSS4G conference presentations are available online. I would like to: watch recorded video presentations, listen to audio ...
2
votes
2answers
106 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
208 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?
5
votes
4answers
157 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.
7
votes
1answer
418 views

How to rectify polygon shapes in QGIS?

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 QGIS (or any other f/oss)? Or how can I improve my ...
11
votes
3answers
324 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 ...
3
votes
1answer
169 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 ...
14
votes
5answers
3k 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 ...
9
votes
1answer
471 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 ...
3
votes
1answer
105 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 ...
37
votes
4answers
2k 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
1answer
931 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 ...
13
votes
7answers
3k views

Free tool to simplify parcel shapefiles?

Is there any tool available which let's me run millions of parcel shapefiles and simplify them?
24
votes
5answers
2k 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, ...
16
votes
5answers
2k 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 ...
8
votes
7answers
795 views

Are there any “highly customizable” GIS platforms?

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 ...
12
votes
5answers
492 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 ...
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 ...
10
votes
3answers
432 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 ...
20
votes
3answers
1k 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 ...
44
votes
20answers
10k 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?