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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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 ...
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251 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 ...
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145 views

Open source alternative to the “Contours with Barriers” Tool in ArcGIS

I am trying to create a contour file for the globe for a project and am using open source GIS software packages. I was trained for several years on ArcGIS and there is a tool to create contours with ...
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83 views

Blend overlapping DEMs using Open Source / Python

I'd like to blend edges of overlapping DEMs such that the join is a smooth transition (for use with InSAR). Apparently the best interpolation kernel for this, according to the literature, is thin ...
3
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0answers
1k views

Open Source True Ortho Software

My work does true ortho rectification. We are looking to transition into a more open source company. One of the processes we are looking to "open source" is true ortho. Does anyone know of a ...
2
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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 ...
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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?
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117 views

Can OpenLayers 3 run without browser or is it designed to be used only in browser?

I need to run OpenLayers app which will render some map into canvas and then I need url of that canvas ( Canvas.toDataUrl() ), I would use NodeJS and Node Canvas to get it done. I wonder can ...
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 ...
2
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0answers
296 views

Reconstituting features from E00 format, without ArcGIS

Recently I used OGR to convert an ESRI E00 format file to shapefiles. I am dealing with vector data, many polygon features per file. I was dismayed to find that none of the resulting shapefiles(you ...
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88 views

Warp polygons/lines from distortion grid, or similar

Anyone have any ideas how I might go about warping polygons or line based on point based distortion map? Specifically, let's say I have a (non-regular) point data set. I create a clone of the data ...
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0answers
191 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 ...
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615 views

How do I automatically generate a spatial data catalogue from shape files and .gdbs?

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
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635 views

Open source space time series database management system

I am aware of the existence of space time DBMSs such as Druid, InfluxDB or OpenTSDB. Is there anything like it for spatially explicit data? A time series extension for a common spatial DBMS (say, ...
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0answers
844 views

GeoServer WFS Speed

I have set-up a machine running Windows Server 2008, and GeoServer 2.1.3. PostgreSQL 9.1/PostGIS 1.5.3 are running locally on that same machine, which is hosted at a location with a 250 megabit/...
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45 views

Seeking open source equivalent to .mpk?

Is there an open source equivalent to the .mpk file format that ArcGIS can still open?
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321 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 ...
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250 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 ...
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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 ...
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109 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.
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1answer
230 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.
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0answers
168 views

Open-source tools for run-off depth calculation

I am working on modeling surface run-off (in ArcGIS 10.2) due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as ...
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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.
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70 views

Is ther open source tool for calculating Getis-O-ord (ARCGIS) and able to customize in own platform

i would like to know is there any open source tool for calculating Getis-O-ord(ArcGIS)? If so can i customize for own application or can i write my script within that application like qgis.
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101 views

Split polygon into four with respect to single point

Some days ago one of my colleague came to ask me a query related to Geometries. The situation is as.... There is one Polygon (suppose a city polygon) and there is one point (suppose user's current ...
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439 views

How can I edit spatial data automatically on postgis and check for topology errors on said data whitout using shapefiles?

So, I have spatial data stored in postgis (points, lines and polygons) and would like to edit and update those in an Open Source software (quantum GIS, grass, etc.) to check for topologic errors, ...
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352 views

Are there any exisiting .NET implementations for WFS that are extendable?

I've been told its a bad idea to implement WFS from scratch: Implementing WFS within .NET Does anybody know of any exisiting .net implementations that I can extend?
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171 views

How to shift vertices of shapes in shapefile using FOSS python library?

I need to shift each vertice of shape in a shapefile (of any type:point, line, polygon, multiline etc.) with Python. I need to loop in all shapes, get the vertices, get it's coordinates and for each X,...
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163 views

Creating Raster with values based on function output

I have a function that calculates a price based on the input slope and distance. I want to write the price to a raster as the rastervalue. How do I do that? OpenSource and ArcMap solutions would work. ...
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149 views

How can I assign road names from OSM to gis linestrings using open source tools?

Starting with a shapefile of linestrings I want to assign street names to these lines if there is a match with a road/street in OpenStreetMap. There are no exact matches as the linestrings have a ...
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0answers
189 views

Overlaying user raster datasets on nasa world wind

Currently I am developing a desktop application with Nasa world wind JDK for 3d visualization of my data sets, but when i overlay my raster data sets those are vertically exaggerating with the default ...
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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 ...
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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 - ...
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315 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 ...
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0answers
89 views

Create Service Area free GIS Tools

Is there a way to to something like ArcGIS provides with the Network Analyst with open source GIS tools? What I am exactly looking for is: I am having a roadnetwork and in this roadnetwork I have ...
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0answers
246 views

Exporting basemap & Layers as an image?

I need a open-source server-side component for a web-application that can export basemaps + layers to an image format (saved on a db). Being slightly new to GIS, I've managed to find a few tools that ...
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0answers
592 views

Calculating distances between boundaries of polygons with Python

I have two sets of shape-files which have to be worked on within a Python Script. Those two Shape Files might differ from each other (same thematic content, but 2 different epochs). If there occurred ...