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

learn more… | top users | synonyms

-2
votes
2answers
226 views

Steps for redistricting using ArcGIS Desktop or Open Source GIS? [on hold]

I have been struggling with how to redistrict in ArcGIS Desktop so can anyone put me through the necessary steps, data, extensions, to perform this operation. More so, is there any Open Source GIS ...
7
votes
5answers
9k views

Comparison of Open Source Desktop GIS Packages

I'm curious as to what comparisons are out there between different Open Source Desktop GIS software packages. I'm aware that there has been a QGIS and gvSIG comparison on this site but I am looking ...
1
vote
1answer
33 views

Open Source solution to batch process shortest distance between points along road networks?

I have the locations geocoded (a fairly small dataset, ~200), but I haven't found a straightforward way to load these data into QGIS and perform network analysis between nodes. Any suggestions? ...
9
votes
0answers
3k views

Open source alternative to FME from Safe Software for Spatial ETL? [duplicate]

Just wondering if there is any open source solution which comes close to safe FME? I would like to integrate it into my workflow, but it´s just another few thousand which my employer has to give out ...
0
votes
0answers
10 views

laspy reading las file

New to laspy and encountering an error. The first code block describes the file header, the second (In[24]) fails to open the file with laspy: In [21]: import numpy import laspy from laspy.file ...
3
votes
2answers
87 views

Is there a reasonable way 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 ...
0
votes
1answer
96 views

Creating a postgis database a GML application schema

Is there any open Source tool(automated or semi-automated) that converts GML application schema to a POSTGIS database/table .Specifically I have a huge application schema containing many ...
3
votes
1answer
323 views

Is TileMill opensource?

I was reading this GIS.SE question about whether TileMill will be replaced by Mapbox Studio. I got worried about the future as a TileMill user, and the question suddenly came to me "isn't tilemill ...
1
vote
1answer
416 views

What is the best beginner-friendly GTFS editor for creating and exporting routes?

I am beginner and need information about gtfs-editor. I want to create routes,trips,patterns,etc... and export it to GTFS-format. I have setup locally two gtfs-editor TransitDataFeeder ...
3
votes
3answers
305 views

Differences in costs of open-source hosted GIS software?

I recently saw a listing of the available GIS products at thegismarketplace.com, which led to a couple of questions. What is the difference between a paid version of GeoServer or MapServer and the ...
0
votes
2answers
152 views

Calculating minimum/maximum width for overlay of two polygon strips in ArcGIS or some Opensource GIS

Is there some solution for calculating minimum and maximum width for overlay of two polygon strips? When I clip these strips the result is another strip with variable width about 1 km and 20 km long. ...
6
votes
4answers
2k views

Open Source equivalent to Collector for ArcGIS to use with QGIS/PostGIS?

From my reading of the Esri web pages the Collector for ArcGIS is tightly tied to that platform. I would be delighted to learn that I am wrong about this. I have a strong interest in generic mobile ...
5
votes
3answers
157 views

What are the most efficient Geographic Weighted Regression packages?

What are the most memory efficient open source packages for calculating a geographically weighted regression (GWR)? I am in a situation where I need to do a geographically weighted regression on a ...
0
votes
1answer
148 views

Cloud Removal from Landsat Data

I'm trying to remove clouds from Landsat 5,7 and 8 data. I'm also trying to do this using only open source options, avoiding ArcGIS. I'm familiar with python and have some QGIS experience. Originally, ...
6
votes
4answers
2k views

Is it possible to create 3D dxf with OGR?

Does anyone know if it's possible to create a 3D dxf with OGR. I would like to assign our contour lines a z value and export them to dxf for some cad work. PS I know FME can do this, however I would ...
3
votes
2answers
68 views

Open Source Interpolation Service?

We are seeking an open source solution for dynamic (on the fly) IDW or Kriging points interpolation. Basically we are looking for something similar to ArcGIS Spatial Analysis Service. ...
2
votes
0answers
33 views

QGIS 2.2.0-Valmiera 64bit on windows 8.1 displays error while creating ROI in SAC plugin

I don't know what happened while creating ROI during Classification using Semi automatic Classification Plugin 3.1.0 "Rome" installed on hp Pavillion i7 with windows 8.1 When i started to generate ROI ...
6
votes
2answers
580 views

Are there open source solutions for travel demand modelling?

I'm looking for open source tools for travel demand modelling (eg The four-step UTMS). Preferably in a GIS environment. That works well with Qgis, Grass and Postgis. My question is not related to ...
0
votes
0answers
9 views

PRN (p-code) to Geocode Conversion

I think I have a unique situation. Client has a file containing the old p-code / PRN but can't relate this to a specific address and desires to move to a geocode orientation. Does anyone know if a ...
2
votes
2answers
96 views

Framework/software for dynamic WPS creation

We have some specific EO data processing facility and are about to provide an access to one using WPS-based interface. The are plenty of solutions for the task. However, it is hard to find one that ...
2
votes
0answers
301 views

Data visualization techniques for web maps using ESRI and open source suits

I want to represent statistical data over the web map and looking the examples/techniques to represent data on the web map (apart from Pie-chat, bar graph) with new tools like gauge widget etc. ...
3
votes
0answers
46 views

Downloadable, Open Source, IP GeoLocation database

I have an open source project I need a similarly open source IP GeoLocation database for. i.e. IP address to country (and ideally city). Ideally with a license that allows redistribution. This is a ...
11
votes
9answers
10k views

Is there a comprehensive list of latitude and longitude values for cities around the world?

I'm developing an application that calculates the distance between cities using their respective Longitude and Latitude values. But the problem is where to get a comprehensive list of latitude and ...
3
votes
1answer
1k views

Open Source Alternatives to ERDAS IMAGINE ATCOR?

I have been using ERDAS IMAGINE's ATCOR extension for ATmospheric CORrection of ASTER imagery. What opensource options exist for atmospheric correction of ASTER Level 1B products? I'm primarily ...
6
votes
1answer
942 views

Open source tool for point/node conflation/matching?

The Question Are there any open source tools for conflating (matching) two layers of point (node) data? Motivation I'm particularly interested in using such a tool to sync data with OpenStreetMap, ...
10
votes
6answers
2k views

Options for Open Source Cloud GIS?

I'm looking for an open source cloud GIS solution. Current situation: Up to 100gb of data stored in file geodatabases that is updated daily. Data is used to create maps as well as geoprocessing ...
1
vote
0answers
70 views

Open-source reader of Leica C10 terrestrial LiDAR proprietary file format

I have a Leica C10 terrestrial LiDAR (laser scanner) system. The system creates and stores point cloud data in a proprietary .bin file. Currently I have to use Leica's proprietary LiDAR software, ...
5
votes
3answers
341 views

DEM generation from ASTER L1B imagery using FOSS

Is there any (photogrammetric or other) FOSS package to support the generation of a DEM from ASTER L1B products (i.e. combining the spectral bands 3N and 3B)? Are there any practical examples or/and ...
1
vote
2answers
35 views

Looking for atmospheric dispersion model with 3d GIS application

is there any atmospheric dispersion model with 3d GIS application that can use DEM and atmospheric data as input ?
3
votes
2answers
677 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 ...
10
votes
5answers
1k views

Seeking Open Source ISO Metadata Editor?

I am looking for a free open source ISO metadata editor for the development of an enterprise database. It will mostly be used for documenting shapefiles and GeoTIFFs. Hoping that it will be an ...
132
votes
56answers
11k views

What free programs should every GIS user have installed?

Note: This question is specifically about installed, desktop software. There is another question specifically about free cloud-based software and services. I'm not necessarily referring to ESRI ...
39
votes
8answers
11k views

Creating drive time polygons using open source tools

Is anyone using open source tools and/or data to generate drive time polygons that radiate out from a given location? For example, I have used ESRI products like Network Analyst and Business Analyst ...
21
votes
5answers
3k views

Is there any model builder in QGIS or other open source GIS?

Like the ModelBuilder of ArcGIS for Desktop to run simultaneous geoprocessing tools, is there any model builder available in QGIS or any other open source GIS software?
-2
votes
1answer
64 views

Sending Shapefile to SQL Server 2012?

How can I send a shapefile to an SQL Server table? I have searched and found a tool called ShapetoSQL but I am developing a c# Windows application so I am looking for an Open Source solution.
11
votes
2answers
298 views

Open source alternative to ArcGIS geoprocessing service concept?

I am searching for any examples of implementing a logic that Esri has built with geoprocessing services. You author a custom tool or it can be a system tool >> you publish it exposing this ...
1
vote
2answers
32 views

WFS Spatial Operator Query - Crosses AND Within

I'm trying to query my wfs service with a polygon. I want the service to return both features that are inside the polygon and partially inside the polygon. However, when I use the "Within" spatial ...
2
votes
1answer
20 views

And/or query on WFS service? [duplicate]

Is it possible to use "and" & "or" queries on a WFS service through the URL? Here's my current URL: ...
2
votes
1answer
53 views

Open source geometry service like ArcGIS?

Does anyone know of an open source GIS server that provide similar functionality to ArcGIS' web services server? For example, the service would provide a similar geometry service that buffers feature ...
8
votes
3answers
2k views

Looking for open source software similiar to ESRI City Engine

I am looking for open source software similar to ESRI City Engine and currently going through open source software directory. Update : About ESRI City Engine (Quick introduction) We want to make ...
1
vote
0answers
50 views

all-in-one gis packages for windows 8.1?

Is there an all-in-one installer that allows having all open-source gis apps installed in windows 8.1? with all apps I mean for instance postgresql, postgis, mapserver, qgis, grass. I have cygwin ...
14
votes
6answers
7k views

Pure JavaScript Library for Geometry Operations

Does anyone know of a pure JavaScript library for doing geometry operations such as buffer, union, intersects, etc? I want to play with doing these operations in the browser. It looks like ...
3
votes
2answers
121 views

Recommended opensource solution for storing, publishing and querying GIS data

Our company has millions of feature classes currently stored through ArcSDE on SQL Server 2008 R2. We are kind of slowly making our way to opensource software. What we want to achieve is to be able ...
29
votes
5answers
8k views

Comparison of the different open source GIS servers

I currently know the following open source GIS servers: Geoserver: java based, vector and bitmap support, also supports. Is now on par with mapserver (performance-wise). mapserver: c/c++, used to be ...
19
votes
5answers
2k views

What is Change Detection and how I can perform such analysis with open source tools?

From wikipedia page: Change detection for GIS (geographical information systems) is a process that measures how the attributes of a particular area have changed between two or more time periods. ...
0
votes
0answers
27 views

Embedding a open source topographic Earth (maybe Google Earth) onto a website?

For a project, I want to create a website that includes something that resembles Google Earth. For this website I would like the starry night background with the Earth in the middle (like that on ...
0
votes
1answer
28 views

Chosing a GeoCMS server collaboration tool

I have seen a few things about different GeoCms. Researching these, none of them by default to actually seem to be a GeoCMS. Somehow when you hook these up to mapserver they become a GeoCMS. I do not ...
9
votes
5answers
1k views

Where can I get neighborhood boundaries?

Besides Zillow's creative-commons licensed neighborhood boundaries shapefiles, what sources of neighborhood boundaries are there? Not just in the US, but all over the world. Free/open source is ...
9
votes
3answers
1k views

Create DEM from stereo pairs?

Does ArcGIS Desktop or any of its native extensions allow me to create DEMs from stereo pairs (acquired by satellite, GeoEye 1)? If the answer is a clear no, brownie points will go to an answer that ...
1
vote
0answers
34 views

How to determine the distribution of pollutants using marine tissue samples?--3D Interpolation [closed]

I have point data representing tissue sampling performed by NOAA NCCOS for Gulf of Maine waters. I am assuming a temporal resolution of one sampling point per location for one year. I have searched ...