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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2
votes
1answer
448 views

How can I retrieve private tag GDAL_NODATA from a TIFF using libtiff?

In an earlier post I reported about my attempts to read TIFF with data stored in tiles using python and libtiff. First I tried to use libtiff's function TIFFReadEncodedTile but finally I tried ...
7
votes
1answer
692 views

What is the correct format for APA referencing maps produced in QGIS, including data layers?

I need to cite maps produced in QGIS. In addition to my own data, I have used the opensource MapQuest OSM basemap, and a 25m land type data layer obtained from Digimap. I would also like to include ...
1
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0answers
36 views

How can I connect seven schools worldwide to create and share QGIS projects? [closed]

I am looking at a possible programme to connect seven schools ( all English capable ) located around the world to set up and share QGIS data and projects about their own local area among the group. ...
2
votes
1answer
345 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.
3
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0answers
155 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 ...
2
votes
1answer
424 views

Storing and updating large amount of raster data

Large amount of data = ~10TB of rasters (multiple projections) with the possibility of this data growing. The basic architecture I'm planning at the moment is having 2 clusters of GeoServer--one ...
1
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0answers
182 views

Spatial decision support tools for spatial planning, licensing, and permitting, alternative to FlexiCadastre? [closed]

I'm tasked to design and develop an information management system, i.e. GIS-based spatial decision support system to guide, inform, evaluate, and monitor regulatory processes in spatial planning, ...
3
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2answers
3k views

Which opensource alternative for users used to ArcGIS 10.x? [closed]

I'm a student and used ArcMap 10 for over 5 years now. Since I will finish university in 3-4 month I wouldn't be able to use ArcMap free of charge anymore. I already searched on google for opensource ...
5
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1answer
214 views

Running OpenGeoSuite on Openshift

Has anyone been able to run OpenGeoSuite on openshift using the free 3 gears? There is plenty of documentation on getting geoserver running on openshift there is even a GIT repo. However I have not ...
1
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0answers
80 views

Using Python Opensource Libraries to check users who visited a store [closed]

I have a few files with location information: 1) User Lat Long Pings in Parquet Files (can be converted to CSV) format - this contains userid, timestamp, lat and lon 2) US County/State Shapefile 3) ...
-2
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1answer
128 views

OS Web GIS for a travel blog [duplicate]

I have had this idea for years now and would finally like to fulfil it! I was always bothered by text-heavy travel blogs. Therefore, I aim to have a Web-GIS based travel blog in two years time. The ...
2
votes
1answer
517 views

Web Mapping Client with front-end query function

I'm searching for a cloud based Web Map Client that offers a front-end query tool so that my client can query against the data and visualize the results on the web map. I'm trying to keep costs down ...
1
vote
1answer
47 views

Any open source raster applications that accept floating point rasters with attribute tables?

I understand that Arc floating point rasters don't have attribute tables because of the high potential number of unique values in each cell but at a theoretical level, I think a floating point raster ...
3
votes
0answers
86 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 ...
-1
votes
1answer
44 views

simple platform [closed]

I'm looking for an open source platform to host a map that fellow staff could add points and polygons. The points and polygons are to represent job locations for our surveying company. The simpler the ...
1
vote
1answer
1k views

Publishing AutoCad *.dwg files into HTML?

I'm new using Autocad. What I currently have is a dwg file generated from AutoCad 2015, now, I want to publish this file somehow into an html (web-mapping?) page so I can grab it from there and embed ...
24
votes
2answers
23k 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 ...
3
votes
1answer
424 views

Cost distance analysis with Whitebox or other open source gis software

I need to perform a cost-distance analysis and cost allocation analysis for a tsunami evacuation model. As only open and free available data is used, it would be also good to use open source software ...
3
votes
1answer
144 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 ...
4
votes
3answers
383 views

How to find the extent of (many) EPSG CRSes?

I want to map the geographic extents / bounding boxes of a lot of EPSG CRSes. At least, those with a rectangular geographic extent. For example, take epsg:2004, visiting that page shows the extent (...
1
vote
1answer
177 views

MCC-LiDAR error: version minor out of range

I am trying to use MCC-LiDAR tool, but I can't get it to work. Example, when I type: C:\>mcc-lidar -s 1 -t 1 TMR_428_63.las output_filename.las I get the following error message: Internal ...
0
votes
1answer
162 views

GIS open source for developer [closed]

What do you recommend for coding using an open source software that is similar to ArcGIS runtime java SDK ?
1
vote
1answer
642 views

Is Geoserver mandatory for developing GIS web application in Java using Ol4JSF in NetBeans IDE?

I am developing a GIS web application which involves querying and creating map layers dynamically (like page getting refreshed for every 5 minutes) and also static querying etc... This application ...
-6
votes
1answer
320 views

Why there is no EPSG code in ArcMap? [closed]

In Arcmap, when you right click on the layer >> go to properties >> select source tab there you see the properties of projection. I cannot understand why ESRI did not managed to add SRID EPSG in ...
3
votes
1answer
282 views

Is it possible to animate a cartogram with FOSS GIS?

I was wondering if anyone knows of any FOSS tools to animate cartograms? By this, I mean 'tweening' between the geographic shapefile and the cartogram version of a shapefile. This means gradually ...
0
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1answer
374 views

ST_Dwithin Source Code

I am looking for the st_dwithin postgis source code. I want to learn the way postgis determines whether a given geometry is within a given radius to another geometry.
0
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0answers
38 views

Extracting Elevation (DEM) from air photos using open source software? [duplicate]

I have a few pairs of stereo air photos and I want to extract a DEM from them. I think that is possible using PCI (OrthoEngine), but I would like to do it using Open Source (or at least free) ...
4
votes
1answer
1k views

Orthogonal correction of building footprints after extracted from a raster

I have ArcGIS 10.1 and am working on a project involving extraction of vegetation and building classes from LIDAR (unclassified) data and aerial imagery (resolution 30x30cm). I have managed to ...
2
votes
1answer
7k views

Creating 3D terrain/model from contour lines, preferably using Open Source GIS?

I am looking to create 3D terrain from a contour map that I have (originally inside a PDF). The contour lines are able to be viewed as paths in Adobe Illustrator. There are two types of lines: 7m and ...
0
votes
3answers
998 views

Want cell linear regression values for a netCDF or multi-band raster

I have climate raster type netCDF data. I want the slope and other regression statistics of temperature for each cell over time. I have read that GEOV IDL can do a temporal regression to achieve ...
1
vote
0answers
169 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 ...
4
votes
3answers
312 views

Estimating vegetation composition from digital images

I am running a Master's project researching Greater prairie-chicken nest and brood survival. Some of my intended covariates include local vegetation measures using digital imagery. I would like to use ...
1
vote
2answers
153 views

Calculate cells from which the feature would be visible above the skyline (horizon)

I'm trying to work out whether there is a way to do something similar to a ZTV/Visibility analysis but only include the cells from which the point (with 50m OFFSETA/height) would be visible above the ...
2
votes
0answers
106 views

Is there a list of Open Source tool alternatives for ArcGIS tools? [duplicate]

Is there any place one can find a list of ArcGIS alternative or near-alternative tools found in (any of) the open source softwares? I am not looking for software but individual tools found in the ...
2
votes
1answer
409 views

CAD line drawing to GIS polygons pt II

I'm a (reasonably) proficient GIS user (mostly QGIS, but some Arc GIS) who has been thrown the conundrum of converting/importing CAD urban planning drawings (2D drawings produce in AutoCAD 2014) to ...
0
votes
1answer
115 views

Replacing arcpy.AddMessage() with open source?

I've recently inherited some old python scripts that contained ArcPy modules. I'm using version 10.0. I am looking for an error messaging system that replaces arcpy.AddMessage()?
2
votes
2answers
759 views

Create tracks from GPS points honoring polygon barriers

I have fish tracking data from a river. The data include positions, times and tag ids. Time interval between positions may be several days. I would like to create a polyline track for each fish tag ...
0
votes
1answer
111 views

recommendation of map viewer

I am looking for software to present GIS files (OSM preferred) with these features: work offline (means I can download a map and present it online in the software). compatible with Windows 7, 32 bit. ...
1
vote
1answer
108 views

Processing feature string fields to raster

I am using the GDAL python bindings. I am trying to rasterize a layer from an arcinfo coverage file, but the values I need to rasterize I have to calculate from string fields. OGR can not write to ...
0
votes
0answers
20 views

Getting started with Web GIS development, especially vector editing? [duplicate]

I would like to start developing a GIS web application for mapping and editing vector data with attributes. I'm familiar with Desktop GIS (ArcGIS, QGIS) and basic SQL. I've also little experience with ...
3
votes
5answers
1k views

LiDAR/Geo-TIFF Tree Crown Segmentation [duplicate]

I am looking for any source code that does tree crown segmentation/delaunitaitoun with LiDAR point clouds or their respective greo-TIFFs. So far I can load and view both LiDAR file and its TIFF in ...
2
votes
0answers
328 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 ...
0
votes
1answer
965 views

Tools to export shps from Oracle database

What open source tools could be used to export shapefiles from an Oracle database. I have tried using QGIS but it does crash way too much.
2
votes
1answer
362 views

QGIS Interpolation on Curved Grid (River DEMs)

I have an very hard task I want to do in QGIS (or another open source GIS program). I have point data for river bathymetry (depth). I have been creating digital elevation models of them using Grass ...
1
vote
1answer
2k views

Problem with Cesiumjs sand castle live editor

I have saved a html file from Cesium SandCastle live editor, but I am not able to run that file on a web browser afterwards, even after loading all the JavaScript files correctly. How to make it run ...
2
votes
3answers
188 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 ...
4
votes
2answers
433 views

Is there a GIS-Tool that fit my needs? [closed]

I´m working on a GIS-Project in the Defense & Intelligence sector. The goal was to develop/create a GIS-Service that: stores and manage GIS-Data (Map data, Height data.. ) has a repository for ...
1
vote
1answer
179 views

Cartographic-complete Maps in PDF On Request using Open Source?

Currently I have some data in PostGIS. I want to implement the following: users will make a request via web, with parameters like location, scale, layers to be displayed, etc. and I need to provide ...
2
votes
1answer
116 views

How to convert Geodatabase to open standards to process it further?

I have a ESRI file in geodatabase format (v9.3). I intend to use this in a non-commercial application. I think I will have to convert it into a open standard since I am confused if ArcGIS online would ...
2
votes
0answers
127 views

Creating web site for people to input their locations and other info? [closed]

I am new to open source Web GIS and have done some self training about the basics of Geoserver, PostGIS and Openlayers. Right now I am in a rush to set up a web site for up to 100 people to access it ...

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