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33 views

Writing Esri JSON outside of ArcGIS?

I am trying to determine if it is possible to construct an esri-json compatible file using an auxiliary tool (rather than ArcGIS). Ultimately it appears that GDAL can read esri-json (awesome!), It ...
0
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0answers
19 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
1answer
53 views

How to obtain TIFF file using data from CSV files

I have a set of CSV files containing lat-long values for certain land cover classes. Long Lat 80.1 23.0 80.2 23.1 80.3 23.2 80.4 23.3 ... From this point on, I need to generate a TIFF file ...
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0answers
43 views

Is there any free API that allows to get the state and the city using the name of the country and the postal code?

Original question: I create an web application and I need to obtain the information contained in the question on the backend side of my application. What I need the most is the automatic retrieval ...
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1answer
24 views

Creating Shapefile for WEAP? [closed]

I have to create a shapefile of a river for analyzing it in WEAP (Water Evaluation and Planning) for my engineering research. I have no knowledge about how a shapefile is created. Which software or ...
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0answers
28 views

Drone generated orthophoto rectification by using custom/local coordinates

I, have a drone generated orthophoto, which needs to be rectified with some custom/local coordinates and also need to prepare a workflow to support custom coordinates. Do you have any suggestions?
2
votes
2answers
91 views

Performing Radiometric Calibration of Sequoia Imagery?

I recently bought a used Sequoia camera and when I bought it, I was under the impression that the sun irradiance sensor and calibration plate would calibrate all my images in real time and I wouldn't ...
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votes
1answer
32 views

(c++) Advanced Geospatial Analysis Library

I've been searching for a lightweight library for geospatial analysis, with low overhead. Yesterday I found TurfJS, looks great, simple and fast, yet, its made in JS. Does anyone know similar ...
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0answers
40 views

Converting DXF/DWG/landXML to GeoTIFF?

I need to do a converion of surface for a large area from DXF (or landXML) with high resolution (0.3 feet grid spacing). Currently perform this with AutoCAD but it takes too much time (over 7 hours). ...
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0answers
30 views

LiDAR Point Classification Program Recommendation [duplicate]

I'm working with terrestrial LiDAR data to create a reference data set and need to classify the points into either ground points or non-ground points. Automated/semi-automated methods don't seem to be ...
3
votes
1answer
90 views

Seeking GIS that can calculate fractal dimensions?

As ‘Fractals are Everywhere’ in geo-ref data, which GIS other than ArcGIS can calculate fractal dimensions?
0
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1answer
33 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 ...
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0answers
28 views

EPSG Geodetic Parameter Registry - SW supporting transformation EPSGs

The page www.epsg-registry.org contains EPSG codes for different transformations (i.e. EPSG:1173, EPSG:1244 etc.). Do you know about some GIS SW (online or desktop), which supports converting ...
0
votes
1answer
29 views

Extracting pixels from polygonal geospatial region of set of map tiles and/or set of GeoTIFF files?

I need to create a script, probably JS or Python, to perform the following: I have a polygonal region -- no "holes", and always fully convex -- for which I need to extract the pixel data from one of ...
0
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0answers
32 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 ...
0
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0answers
24 views

Smoothing & standardizing time-series of 20 DEMs/DSMs of same area?

I have a set of 20 DEMs, DSMs and coinciding orthophotos (30cm GSD) of the same area acquired by aircraft which photogrammetrically we generated in Pix4D. No actual ground control was used other than ...
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0answers
30 views

Using Leaflet with large data? [duplicate]

I am looking to display a range of different data geometry (points line, or polygon) within Leaflet. I will be displaying only one dataset (i.e. point, line or polygon) at a time. Some of the data ...
0
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0answers
21 views

Alternative option for Collector for ArcGIS [duplicate]

I am a college student at Penn State and am working on creating an app for the north country trail in butler county. The app mainly consists of a feature layer for users of the trail to report ...
0
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2answers
61 views

Accurate GPS apps for smartphones available? [closed]

I'm working on a project where we need to make accurate GPS measurements and the required precision would be in centimeter level. I've been doing some searching and not yet found any solid solutions ...
1
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0answers
43 views

Seeking Multiprint plugin for QGIS 3?

I'm working on QGIS3 and I'm looking for a plugin to print multicomposers at once. I know that in QGIS2 there is a plugin (multiprint) that does this, but for QGIS3, I can not find anything similar. ...
1
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0answers
18 views

Dividing space into homogeneous connected areas [duplicate]

Is there an algorithm (or software) for splitting a map into K connected areas such that the within-area variance of some variable is minimised, and the between-area variance of that variable is ...
2
votes
1answer
134 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/...
0
votes
2answers
140 views

Convert CSV GPS Logs to GPX on Android (GPSBabel on Android)

I bought a GPS Logger - a small device that will, while turned on, log the GPS Coordinates to a SD card every second. It has no display and no other UI than 3 buttons and a couple of LEDs. The Device ...
0
votes
1answer
30 views

Seeking alternative to ArcGIS Water Utility Tools to create lateral lines?

I need to automatically create perpendicular lines from a point to a line (curb box to water main) and also create perpendicular lines from a point to a line or polygon (curb box to building footprint)...
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0answers
23 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?
2
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0answers
26 views

Points to Polygon in OpenLayers [closed]

Is there a method to join points together to create a polygon in OpenLayers or other WebGIS platforms? I have been searching for some while and I have found that dropzone.js can allow me to upload ...
2
votes
0answers
37 views

Seeking inexpensive GIS software that can export TIN files to AutoCAD? [closed]

I'm an architect who would like to be able to download 3D terrain info and then bring it into AutoCAD 3D for use in renderings and animations using a couple of rendering/animation softwares called ...
2
votes
1answer
69 views

Seeking Image similarity software?

Could anyone suggest a script/tool/software, that would: recognize and quantify the similarity/dissimilarity between the four attached images? Meaning, it would show that there is a greater ...
0
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0answers
30 views

Integrating online Questionnaire with interactive GIS-based map?

In the past I designed and administered an online questionnaire with google form. One of the questions asks to list three places of outstanding natural or heritage value (example: the respondents ...
0
votes
2answers
89 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 ...
0
votes
1answer
50 views

Creating boundary box in Python on randomly generated longitude / latitude points? [closed]

I'm trying to create a boundary box to separate a list of randomly generated longitude / latitude points. I would also like to look at the distribution of randomly generated points over time. I wrote ...
0
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0answers
108 views

Seeking software similar to Google Earth Pro?

Are there other software products similar to Google Earth Pro? I am looking for a recommendation that: Can import an image to the software to overlay an exist imagery. Must have historical imagery ...
1
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2answers
54 views

Seeking GIS Program With Dynamically Updating Layers?

I am looking for a GIS platform which supports dynamically updating layers. These could be updated by file, socket, plugin, or any other measure, that isn't important. The goal is to be able to ...
0
votes
1answer
90 views

Seeking QGIS plugin for creating buildings?

is there a plugin for QGIS, which extrudes buildings with sort of random heights and adds a roof on top? Ideally, the plugin would also put different textures as facades, e.g., having some templates ...
0
votes
1answer
28 views

ogr2ogr for KML to Shapefile [closed]

I am looking for a way to convert KML to three Shapefiles (point, line, polygon) with a Windows script (exe or bat). The script should open a window to choose the input KML and save the three ...
0
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0answers
41 views

Can QGIS be used to define territories of equal population?

I was wondering whether the QGIS plugin Cmaps region generator can be used to define territories of equal population by splitting a file of small postal areas/polygons and then automatically building ...
0
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0answers
156 views

Seeking Geospatial Modelling Environment (GME) alternative running on ArcGIS 10.4+? [duplicate]

The Geospatial Modelling Environment GME (http://www.spatialecology.com/gme/gmelicense.htm) sounds really promising for my tasks. However, GME seems to be abandoned as it is only compatible with ...
4
votes
1answer
88 views

Seeking ST_Subdivide implementation in Python?

I'd like to utilize PostGIS' ST_Subdivide operation via Python. I would like to avoid interfacing directly with PostGIS, have a database up, etc. Instead, I would like to pass a geometry object and ...
1
vote
1answer
711 views

Pix4D vs. Agisoft Photoscan

How do Pix4D and Agisoft Photoscan mechanically differ in producing an orthomosaic, given the same set of geotagged images? Are they any resources that discussed this? I'm also assuming full ...
0
votes
1answer
82 views

Free shapefile designer

I am using health mapper to display health data. It uses ArcGIS to draw district boundaries as a shapefile. I am interested to to draw sub district boundaries, e.g County or neighborhood boundary ...
1
vote
1answer
102 views

Seeking Open Source implementation of Majority Filter?

I am performing postprocessing on Landsat GeoTIFF images and want to use the Majority Filter as mentioned in the book on Image Analysis, Classification and Change Detection in Remote Sensing and ...
2
votes
1answer
77 views

Seeking Python library for Sentinel SAFE files?

Is there a library for navigating Sentinel's SAFE product and tile archives (i. e. a nice object-oriented API for reading metadata, getting tiles, reading imagery files) As far as I understand, ...
1
vote
0answers
30 views

Spatial query and sending SMS - Which techno on mobile? [closed]

I would like to set up a mobile application to send SMS messages to nearby contacts. To make it simple, here are the steps in the process: The user opens the app and adds a point on the map. A script ...
1
vote
0answers
62 views

Co-registration of two DEM raster

I have 2 different elevation files, a ALOS GDSM elevation set & a DSM extracted from Corona imagery. Since the Corona file has some inevitable offsets (mainly in z, non-systematic across the area ...
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votes
1answer
52 views

Create points on a map by clicking and exporing it to CSV? [closed]

I have been for a while looking for an app or website where I could display a map on screen and create a list of points over it by just clicking and adding them. I'd like to export this list in CSV ...
0
votes
1answer
97 views

Generating higher vertex count polygons to retain projection

I'm displaying polygonal boundary data from a government source (VicGrid94 projection) on a Mapbox-GL-JS (EPSG 3857) map (first converting it to GeoJSON, EPSG 4326). The client is concerned about the ...
0
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0answers
110 views

Adding to Redshift table of location polygon info

I'm data scientist and I haven't experience in spatial data. There is a task: add to Redshift (S3) data table of location points column with the name of the polygons in which the point lies. How to ...
1
vote
1answer
53 views

Know the shadows of a house before building it

Imagine a house/building, seen from outside, at sunrise. As the the sun moves in the horizon, a) the shadow of the house is displaced/deformed, and b) some faces of the house have more/less sunlight ...
0
votes
1answer
61 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
1answer
253 views

Looking for an OpenEV replacement, i.e a fast geotiff viewer

I have in the past used OpenEV to have a fast preview of geotiff files. I tried to install it in Ubuntu 16.04, but it isn't in the ubuntu-gis ppa nor could I find another simple way to install it. The ...