Questions tagged [open-source-gis]
Software for which the original source code is made freely available and may be redistributed with or without modification.
532
questions
0
votes
1answer
29 views
How to convert XYZ Source for OpenLayers from tile/z/x/y to something else? [on hold]
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
votes
0answers
20 views
Seeking sources for learning Opensource WebGIS? [closed]
Please introduce the Comprehensive sources for learning Opensource toolkitWebGIS(Geodjango,Geoserver,postgis and OpenLayers).
0
votes
1answer
31 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 ...
2
votes
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.
2
votes
2answers
159 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....
0
votes
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
votes
3answers
51 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.
0
votes
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 ...
1
vote
1answer
85 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 ...
1
vote
0answers
39 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 ...
0
votes
1answer
40 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?
0
votes
1answer
136 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 ...
0
votes
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
vote
5answers
233 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 ...
4
votes
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 ...
-1
votes
2answers
138 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
0answers
49 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?
...
3
votes
1answer
703 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" />
<...
2
votes
2answers
295 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
vote
0answers
45 views
Seeking open source equivalent to .mpk?
Is there an open source equivalent to the .mpk file format that ArcGIS can still open?
0
votes
1answer
89 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
votes
0answers
41 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 - ...
2
votes
2answers
125 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
475 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 ...
3
votes
3answers
2k 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
votes
0answers
110 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
64 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
votes
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
156 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
votes
0answers
316 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
223 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
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
vote
2answers
121 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
vote
0answers
323 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
470 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
251 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
574 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
128 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
306 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
279 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?
-2
votes
1answer
426 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?
1
vote
2answers
256 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
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....
1
vote
0answers
155 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
136 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, ...
3
votes
1answer
577 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
2k 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
493 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
160 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
110 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.
