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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1answer
31 views

How to convert XYZ Source for OpenLayers from tile/z/x/y to something else? [closed]

I am using openLayers to create a map and for the source I am using XYZSource which takes file in the given format: z/x/y.png but i want to know if there is any other ways to assign the tiles instead ...
1
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2answers
942 views

Seeking Icon library for custom GIS software? [duplicate]

I am building a desktop application and currently utilizing a mix of icons for pan, select, zoom, attribute table, etc that have been randomly taken from the internet and modified. The overall look ...
0
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1answer
32 views

Seeking GIS Solutions for land management? [closed]

I am working at real estate company. We need to use a GIS solution for land management. Which is better Open source or Esri Solution? A big problem with Esri for me is its Licence. I need more ...
6
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3answers
3k views

Convert UTM northing and longitude to latitude

I am doing some work with the Military Grid Reference System (MGRS), which is based on Universal Transverse Mercator (UTM). I find that I need to convert from UTM northing and longitude (actually, ...
0
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1answer
137 views

Reading Esri File Geodatabase (.gdb) from .NET?

I have been reading various threads on reading (not writing) an ESRI file geodatabase (.gdb). What I need to do is process a feature class in a geodb and extract the vertices of each feature. I do not ...
2
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2answers
164 views

How to rasterize ungridded XYZ (LiDAR) files?

I have a large set of ungridded xyz text files (LiDAR point cloud) and want to export them to any raster format (tiff, asc, gridded xyz...) for further GIS processing. The source: https://www....
2
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3answers
179 views

Raster symbolization in open source web gis? [closed]

We would like to build a simple web map application that displays raster data (e.g. a digital surface model) and symbolizes values (e.g. height) using a color ramp. Is it possible to have the user ...
18
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4answers
13k views

Free GIS software for orthorectification?

Could someone recommend a free and/or open source GIS application that can orthorectify map images?
2
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1answer
89 views

Compress Large size of satellite image by Open Source GIS software [closed]

I have a new challenge to compress large size of satellite image from 59GB to 10GB as maximum size by Open Source GIS software to publish it to GeoServer.
1
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1answer
90 views

Searching open source Terrain and Satellite maps for Leaflet

For our project, we are exploring Terrain and Satellite maps using Leaflet.js While exploring the Internet got this OpenTopoMap. However, not sure whether this is a Terrain Map. For Satellite got ...
0
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1answer
15 views

ODLStudio Matrix Size Problem

The reason I'm asking this question here is that I've seen a thread about ODL already. Let me know if I'm in a wrong place. I'm trying to crosscheck a route plan using ODL Studio, which uses JSpirit ...
-1
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1answer
48 views

Searching for features? [closed]

With free, open source tools and data, I would like to be able to find (electronically, not by hand) properties (in the sense of "land owned by private individuals") that meet the following sample ...
22
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4answers
6k views

Is there an open source GIS to view and edit CityGML models?

I'm looking for an open source GIS that supports viewing and editing of CityGML models. So far, I've found a list of open source applications that support CityGML, but they all seem to be stand-...
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3answers
52 views

Seeking open source solution to convert CAD annotations to DXF/GIS vector format?

Looking for an open source solution to extract CAD annotations to one or several common OGR vector formats (DXF, Geopackage, shapefile ..). Output data must contains at least text and rotation.
6
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8answers
9k 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 ...
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0answers
20 views

Failed to load the GDAL native libs for GeoServer 2.15.0 [duplicate]

2 days searching and looking for a guideline to enable GDAL extension for GeoServer, I found many questions here and I followed all steps, but unfortunately the problem still exist the default raster ...
2
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1answer
128 views

Seeking open source geospatial viewer of attachments stored in file geodatabase?

I have a file geodatabase that contains imagery and photo attachments linked to each record of a feature class. I am looking for a non-proprietary solution that allows a user without Esri to view ...
1
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1answer
232 views

Juno 3D open source software

Is there an open source software that I can use to collect data with the Juno 3D GPS? I'm hesitant to buy a Terrasync or ArcPad license.
1
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1answer
115 views

Free software to publish tiles on Amazon S3?

Does anyone know of free software that would allow me to publish tiles on Amazon S3? I know of Arc2Earth, but it is not free.
1
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0answers
58 views

Seeking open source alternative to RivEX (add-in for ArcGIS designed to process vector river networks) [closed]

I wish to process a river network - for the assessment of hydrological potential. RivEX is one addin (not free) which could be used with ArcGIS. Is there any alternative to this?
1
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0answers
40 views

Seeking open source tools to visualize map projection distortion? [closed]

A reference article on Map Projections contains the following figure: I think the images are created using Geocart, listed in Additional Resources section. I'm interested in trying to create ...
20
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11answers
49k views

Extracting raster values at points using Open Source GIS?

How can I extract values from a raster by points? I prefer not in Arcgis. I prefer in Qgis or Mapwindow or other open source gis.
3
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2answers
733 views

How to create a sound map using ArcGIS?

I have locations of the points which produce sound. I want to create a sound map based of those points, topography, and the distance at which a sound can travel. On this picture you can see the red ...
0
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1answer
41 views

How do I contribute to opencv-python? [closed]

I have an implementation of a computer vision algorithm in python. I would like to contribute this to opencv-python. This is my first time contributing to FOSS. How should I go about it?
6
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6answers
1k 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 ...
4
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3answers
1k views

Counting sides or edges of polygon using open source GIS?

I wondered if it is possible to determine the number of sides / edges (not vertices) that a polygon has. Imagine the following case. There is a shapefile with 10 polygons. Is there any way to ...
7
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2answers
1k views

Open source location allocation modelling

I'm looking for open source tools for location allocation modelling (eg planning public health facilities). Preferably in a GIS environment. I know GRASS somewhat, but v.net.alloc doesn't seem to ...
2
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2answers
299 views

Focal / Moving Window statistics - open source

I am currently running a process that involves the creation of many "Focal Statistics" rasters in ArcGIS. These rasters use varying-radius circular search areas and calculate three different ...
0
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1answer
40 views

Seeking GIS Navigation App for High Accuracy Data? [closed]

Are there any mobile GIS applications that I can use to navigate to high accuracy data on android? I would like to load layers - a .shp or .kml and use the map to navigate to points. It needs to be ...
1
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5answers
238 views

Seeking (Open Source) Mobile GIS app for survey?

I'm going to do an on-site survey for a business area development research. Therefore I'll visit all of the biggest business district from a medium-scale city (100,000 population) to check present ...
26
votes
6answers
13k 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. ...
10
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5answers
12k views

Clipping LAS data using shapefile polygons and open source software?

I am trying to clip or filter lidar files (.las, .xyz) using a shapefile that contains multiple polygons. Is there open source software that can do this spatial operation? My .las files are enormous,...
2
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2answers
126 views

Geocoding sensitive addresses without API

I have a large set of sensitive addresses that I need to Geocode on a server. I cannot send them to an external API due to HIPAA restrictions. Ideally I'd love to use an open source solution, even ...
11
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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
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2answers
18k views

What is OSGeo4W?

I have been using GIS for a few years now (ArcGIS and MapInfo). But only when I have started using QGIS I come across OSGeo4W, as there is an option to download it on the QGIS website. I have tried ...
7
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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 ...
3
votes
1answer
664 views

How to put a roads layer (OpenStreetMap) on top of KML polygons?

I need to develop a map where KMLs are overlayed with road layers. So, KMLs are polygons, and I would need to use a map tiles like OpenStreetMaps. But the problem is how to put roads on top of KML ...
142
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42answers
18k 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. What free programs should every GIS user ...
1
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0answers
50 views

Importing WFS Feature in ArcGIS Desktop? [closed]

I am trying to Import an open source WFS Feature in ArcGIS. I have filled all the Options correctly but the Toolbox does not work and I receive error that feature is empty. How can I correct it? ...
2
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2answers
478 views

Opensource bus route planner

Since I have little coding skills, I'm looking for an open source bus route planner that consumes GTFS data (That I have to create myself), All I could find was OpenRouteService, and although it has ...
4
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1answer
1k views

Accessing raw data from LAZ file in Python with Open Source software?

Is there anyway to access raw "LAZ" (not LAS) datasets in Python? I was trying to with ArcPy (I'd prefer not too), but it doesn't seem able to access LAZ. I'd prefer to work with the raw LAZ file and ...
0
votes
1answer
90 views

Is there an open source stereoscopic interface for QGIS, like PurVIEW or DAT/EM, or stereo Analyst?

I have a lot of imagery processing that I do at the local college, and most of the imagery is stereo imagery. Is there an open source piece of software that could be used to view the imagery and ...
8
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1answer
3k views

Open source GIS engine that is similiar to ArcGIS Engine?

If I was to develop a mapping application to be a standalone windows app, is there an open source GIS engine that is somewhat comparable to ArcGIS Engine?
-1
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2answers
140 views

Network/Routing analysis with open source GIS

I am researching for ways to do network analysis or routing optimization with open source GIS. ArcGIS currently has an extension for this called Network Analyst but would like to keep my analysis with ...
1
vote
3answers
3k views

Open source tools to create quantized-mesh tiles for Cesium?

I'm looking for a tool or toolchain to generate quantized-mesh-1.0 tiles that can be used with Cesium. Possible formats for the terrain source are LAS, ASCII Grid or simple XYZ files. As a first try, ...
-1
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1answer
101 views

Licensing for Open Source Geographic Information System? [closed]

I would like to ask about the licence. This software is presented as "Open Source Geographic Information System" but it is free also for company? Can I use it for creation of commercial maps in my ...
15
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8answers
2k views

Why choose open source software for remote sensing research? [closed]

If you judge by the amount of the questions regarding FOSS software that are being asked in GIS SE many users seems to prefer FOSS over proprietary software. I've read some articles - more precisely ...
1
vote
1answer
29k views

Seeking open source route planning software?

Let's assume for this post that I know the amount of time I'll be spending at each location; the only unknown is travel time between locations. I've been loading the addresses into Google maps, ...
1
vote
2answers
363 views

How to draw maps with OpenLayers without subtitles?

I'm developing an application, using OpenLayers and OpenStreetMap, which can not have some subtitles, because it pollutes the map, subtitles like this: this is my code defaultRasterLayer = new ol....
3
votes
1answer
711 views

Adjust leaflet routing machine draw (animate) route speed

I use leaflet routing machine and it's working fine with me. Here is my code: <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <...