Questions tagged [open-source-gis]
Software for which the original source code is made freely available and may be redistributed with or without modification.
518 questions
1
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1answer
14 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 ...
1
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0answers
32 views
Seeking open source equivalent to .mpk?
Is there an open source equivalent to the .mpk file format that ArcGIS can still open?
0
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0answers
13 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 ...
0
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0answers
28 views
Seeking open source tool to update Clutter file?
Clutter files used to calculate RF propagation.
I have an old Clutter file I'd like to update according to new GIS vector layer I get. My clutter file has following format :
index.txt, menu.txt, g0 - ...
1
vote
1answer
48 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 ...
2
votes
2answers
67 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 ...
1
vote
3answers
148 views
Convert dwg (CAD) to shp in any open source GIS software?
I would like to do what's needed in a GIS (GRASS, QGIS, etc) alone, no other converters-only.
The process is to read the dwg files that would be located in a folder and read them as shp and perform ...
0
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0answers
36 views
Tiling large single GeoTIFF raster into smaller GeoTIFF tiles? [duplicate]
I have traditionally used proprietary software tools for tiling raster datasets but I am keen to explore the open source solutions as well.
Are there any open source solutions that can easily tile ...
1
vote
1answer
30 views
Is there a way to use ancient cities data with OSMnx?
Is there a way to use OSMnx to construct graphs and images of ancient street maps, perhaps using a data source similar to OSM (in the spirit of OHM)?
For example, is there a way to construct such a ...
0
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0answers
17 views
Using Geoserver and PostgreSQL to build a web mapping tool? [duplicate]
I've been an ESRI user and a Carto user and like both tools but I am now hoping to build my own web-mapping platform. The issue is, I have no web-development experience other than the little I've ...
3
votes
1answer
58 views
Using python Point-In-Polygon operation to join grid with points based on points falling within grid?
I want to know how to select values from the xarray DataArray based on the location (geo_df.geometry) and time (geo_df.plant_date & geo_df.cut_date) of rows in the geopandas GeoDataFrame. I want ...
0
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0answers
103 views
Create read MapInfo using C#
I've Mapinfo .tab files (including .dat .id .map) I'd like to read the attributes of the files then may store in a DB or write to a csv (not yet decided).
As far as I can tell, using MapInfo Pro ...
2
votes
1answer
139 views
ArcGIS region group open source equivalent in numpy/python?
I am trying to get a unique ID for contiguous raster objects with the same value, like what the Region Group tool from ArcGIS does. However I need an open source solution using python/numpy/gdal/...
1
vote
0answers
24 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?
0
votes
2answers
91 views
Open source desktop GIS for high school curriculum?
I am a physics teacher and contemplating to integrate GIS to our high school's curriculum. A de facto software looks to be ArcGIS, which is a proprietary software.
I wonder what are open-source ...
1
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0answers
234 views
Select border region from segmented image
I have several thousand aerial photographs which have been scanned in and orthorectified, but the image borders and fiducial markers remain on the image. I am looking to identify these parts of the ...
2
votes
1answer
80 views
Converting DEM to LAS file? [duplicate]
Is there a way to convert a DEM raster to a .las file using open source software and/or any tools that come along with a complete ESRI license?
I have been able to achieve this using the LAS Toolset ...
1
vote
0answers
137 views
Open source convert .idb .mdb database
Is there a way to convert a geodatabase (ArcGIS Geodatabase Version 9 according to their website) to other formats such as shapefiles / geopackage for feature layers and geotiff for rasters using a ...
4
votes
3answers
264 views
Open source approach to classifying and removing LiDAR points from overlapping scans?
The attached screenshot shows a LiDAR point cloud with significant overlapping scans. This point cloud tile is part of the MN statewide LiDAR dataset which has 25% scan overlap and 1.5 NPS. For many ...
0
votes
1answer
68 views
Open source alternative to Linkage Mapper & ArcGIS [closed]
I'd like to calculate least cost paths between fragments using a cost raster I created based on habitat suitability values.
I saw that most people use Linkage Mapper, but I don't have access to ...
2
votes
0answers
187 views
Open source absolute atmospheric corrections for Sentinel-2
I am searching for open source absolute atmospheric correction processors for Sentinel-2. There are many of proprietary ones (FLAASH, QUACS, MACCS) which I cannot use for my study.
Beside DOS1 (QGIS ...
2
votes
0answers
192 views
Is there a QGIS alternative for ArcGIS Schematics?
I want to draw a schematic drawing from a network.There is an extension in ArcMap that can do this. Is there an extension or a way to do this in QGIS or any other open source GIS?
-3
votes
1answer
276 views
Open source remote sensing and satellite imagery DATA [closed]
What are the most known libraries of open source data related to remote sensing and satellite imagery? Especially applicated to agriculture? And what are their resolutions and frequencies?
0
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0answers
15 views
consensus map from 3-date classified land cover rasters
I have performed land cover classification of Landsat images from 3 seasons. I want to generate a consensus map from these 3. For instance if a pixel is 'forest' in 2 maps, and 'pasture' in the third, ...
1
vote
2answers
142 views
Finding tie points between a georeferenced and a non geo referenced image
Is there an open source program for finding tie points between a non-georeferenced image and a georeferenced image? I am looking for something I can run at the command line in linux to incorporate ...
1
vote
2answers
266 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....
1
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0answers
87 views
Pure PHP Library for Geometry Operations 7
I am working on a php project on a shared webhost. so I am limited into mysql and php. I want to do some geometry operations in php side. In fact it is a routing algorithm which works in php. I need a ...
1
vote
1answer
84 views
Processing historic aerial imagery mosaics
I'd like to process multiple sets of old (>1938) aerial imagery that are scanned, but whether merged nor georeferenced. While I had good results with QGIS to align single photos, using passpoints, ...
2
votes
1answer
338 views
How to import erroneous geometry records into PostGIS for fixing?
New to PostGIS. I have a few large multipolygon datasets with errors that PostGIS should be able to fix quite efficiently. However, when in QGIS I try to import the layers into PostGIS, it will ...
2
votes
1answer
1k views
Field data collection for QGIS? [closed]
I'm new to the open-source GIS world, having abandoned ArcGIS due to costs, and am looking for an OS analog to the Collector app. What I'm seeking to do is collect field data with an Android cell ...
2
votes
1answer
352 views
Couldn't load plugin GniPlannerFTTH [closed]
I am using FTTx Planner (Open Source element of Geospatial Network
Inventory system) but when I try to use GniPlannerFTTH plugin in QGIS I get the following error:
"Couldn't load plugin ...
0
votes
1answer
106 views
Exporting multiple shapefiles (mixed geometry types) into one KML?
Is there a way, using open source software, to export multiple shapefiles of mixed geometry types, and different attributes, into one KMZ/KML file?
Something similar to from ArcMap "Map to KML", but ...
1
vote
0answers
61 views
Is there any open source equivalent to Esri's Living Atlas?
The Living Atlas which is accessible through ArcGIS has so much useful information. I was wondering if there is anything even close to this scale available for open source products. Preferably QGIS.
2
votes
1answer
51 views
How could we get presentation of FOSS4Geurope 2017?
I was to the FOSS4Geu 2017 and I could not see all the presentation I would to see. So, as the great team try to get all of them, I thought it's possible to get it throught the website.
Unfortunatly ...
-1
votes
1answer
269 views
Photomosaic non-georefferenced images using open-source software
I have a directory of images that were captured by drone. The images have GPS info in the EXIF tags but are not georefferenced and do not have world files. I would like to merge these photos into a ...
1
vote
1answer
50 views
How do I patch libgeos without losing QGIS?
How can I create a custom libgeos to replace the one in my Ubuntu system?
Basically, I'm trying to expose some of GEOS functions (orientedDistance()) to other packages as explained in Directed ...
3
votes
1answer
233 views
How to use Cesiumjs without bingmap api key
Can I use cesiumjs without bingmap api key. I need to create a viewer which should use my own wms layer and osm. Further i want to use it as a platform for geospatial analysis on my spatial data. As i ...
2
votes
1answer
2k views
How to create line/polygon shapefiles from geojson using gdal in Python?
I have put this together after reading How to create polygon shapefile from a list of coordinates using python gdal/ogr?, and How to write Shapely geometries to shapefiles?
I am attempting to read a ...
1
vote
2answers
143 views
Open Source GIS tools for using LiDAR to estimate storage behind dams/culvert [closed]
Can you recommend an open source GIS tools for modeling the water impounded on the upstream side of a dam using LiDAR data?
3
votes
1answer
177 views
QGIS Rule-based rendering in 2.14
I'm going through the QGIS Map Design book and have run up against a wall in adding cascading rules. I'm working with QGIS LTR 2.14. The authors recommend this version.
My vector data is in a ...
2
votes
1answer
534 views
QGIS: sip module implements API v11.0 to v11.3 but the qgis._core module requires API v10.0
I have read all the questions on the SIP module and QGIS, but they do not answer my question. Most of these are dealing with screwed up paths; I do not think my environment variables are incorrect.
...
4
votes
3answers
551 views
GDAL/OGR (Python) GetGeomType() method returns integer, what is the matching geom type?
When I use the GetGeomType() with GDAL/OGR it returns an integer. I want to know what geometry type each integer represents.
driver = ogr.GetDriverByName("FileGDB")
gdb = r"C:\Users\******\Documents\...
2
votes
1answer
2k views
Current status of open source 3D GIS software and libraries
I'm an open source advocate and been asked to present to a top management in government regarding the availability of open source 3D tools and software that leads to SmartCity/SmartNation initiatives. ...
1
vote
0answers
23 views
Reposition geotagged image on mapoeg [closed]
I am building a map in leaflet, rendering a variety of layers on top of the map.
One layer contains geotagged images fetched from a folder (with Leaflet.Photo).
Some of the images GPS locations are ...
1
vote
1answer
328 views
Standard Deviational Ellipse with Open Source Python (GDAL/OGR etc)
I am trying to mimic the Standard Deviational Ellipse tool from ArcGIS through Open Source Python avenues. The formula is here.
At the moment I am failing to get the correct X and Y axis lengths for ...
0
votes
1answer
554 views
Open source solution to convert terrain data to collada?
I am exploring how to convert terrain information (DTED, SRTM, etc) to a 3D mesh file. Collada is preferrable as it is very compatible.
I have read this: Converting dem and geotiff to collada model ...
2
votes
3answers
576 views
Open source ESRI ArcGIS REST API compatible server?
Are there any open source tools out there that can provide an ESRI ArcGIS REST API compatible interface or similar functionality?
Many of our clients are running ArcGIS software and are asking us for ...
1
vote
1answer
158 views
Algorithm for calculating the Central Feature using open source Python
I want to use an open source programmatic approach through Python for calculating the central feature of a feature class with over 700 points. At the moment the process in the code below works but ...
3
votes
1answer
401 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 ...
4
votes
0answers
206 views
Is there an open source equivalent to ArcGIS “collect events”?
I am looking for an equivalent tool to ArcGIS "collect events" (within the Spatial Statistics -> Utilities toolbox). I wish to aggregate coincident point data in a space where many points lie in ...
