0
votes
0answers
12 views

batch convert geojson to shapefile [duplicate]

I have a directory full of geojson files that I need to convert to shapefiles for editing in QGIS. As far as I have searched, there are no resources in GIS StackExchange that explain how to do this ...
0
votes
0answers
3 views

Areal Clustering with Differentially Sized Areas

I'm currently learning a little about spatial auto-correlation. I'm quite interested in seeing if areas with higher/lower residuals from a linear regression model tend to be closer to one another (...
1
vote
0answers
6 views

Create time series graph with multiple rasters

I need to create a time series graph for a few random cells with known underlying attribute such as "forest" or "agriculture" based on the VCI (Vegetation Condition Index). I have been reading and ...
1
vote
0answers
5 views

Finding average number of locations in each neighboring census tracts within a given distance

I have used the buffer and intersect tools to identify point locations within a certain distance of a census tract's boundaries. I now want to calculate the average number of point locations in each ...
1
vote
1answer
18 views

How to convert latlong into Postgis geometry?

I have this excel spreadshit with latlong coordinates in it and imported it into Postgis Problem is that I can't represent it on Geoserver because there is no typical Postgis geometry column How to ...
0
votes
0answers
5 views

Google Earth Engine and Sentinel-2

First at all, I'm new at Google Earth Engine and Javascript. I'm trying to use Sentinel-2 data in the API following this tutorial of Landsat data (https://developers.google.com/earth-engine/...
1
vote
0answers
9 views

Segmentation fault in readasarray

I am running the following code and get: Segmentation fault (core dumped) I have no clue why, I have been using the functions many times before and now suddenly this happens. Sometimes it happens at ...
0
votes
1answer
9 views

Can i take the wms url from the user interface

If user wants to overlay his own wms layer overlay on the basemap of our portal, then how can user pass that url to openlayers method like below code enter code here overlayGroup.getLayers()....
-2
votes
0answers
9 views

Number of bands hyperspectral sensor has?

How many bands does hyperspectral sensor have in visible and near infrared spectrum with spectral resolution of 0,03 µm, with some explanation?
4
votes
1answer
41 views

How to close/remove QGIS welcome page (recent projects) with Python?

Is it possible to close the QGIS welcome page with Python? I have a permanently docked Python plugin, that uses showRubberBand to directly write into map canvas. Therefor I have to close/remove the ...
0
votes
0answers
11 views

Is Output Cell Size Environment the same as Resample tool?

I have a raster catalog that contains hundreds of rasters (10 x 10). I need to perform Cell Statistics SUM on all the raster. End user able to specify under what cell size the want to perform the ...
1
vote
1answer
10 views

Proj4js - no transformation for epsg2056

I have a script which converts local coordinates to WGS84. The script works fine if source data and source CS is epsg:21781. The CS for the data has changed now to epsg:2056. When I use epsg:2056 as ...
2
votes
2answers
50 views

Opening ECW files in QGIS?

QGIS 2.14.1 opened .ECW files simply via the open raster menu, without any problems. In 2.14.3, the entire ERDAS Compressed Wavelets option has disappeared from the file type drop down, and QGIS ...
0
votes
1answer
14 views

Creating 700 m x 700m grid in ArcGIS for Desktop? [duplicate]

I'd like to know how to create 700m x 700m grid array in ArcGIS. I am a beginner at GIS. I'd like to develop the insect distribution map.
2
votes
1answer
31 views

QGIS Filter layer by expression

Can I make the filter by the value that is obtained by the function? for feature in iter: name_dot = feature['name'] print name_dot expr = QgsExpression("\"name\"=name_dot") selection= layer....
0
votes
0answers
4 views

OSGeolive 9.0: upgrading geoserver

I am using OSGeolive 9.0 (which I installed on my hard drive), because I need to have geonetwork 2.10. However, I would like to upgrade geoserver: - how can I upgrade it; - and how can I configure it ...
0
votes
1answer
14 views

Removing pixels in raster map using ArcGIS for Desktop?

I made a raster. I wonder how can I remove pixels with values lesser than an specific value? for example How is possible to set the value of classes from 0.92? i have searched it and i found this ...
-1
votes
0answers
9 views

Code in jscript for application to show drop down list; values of list to be get by the dynamic layer service?…zoom to the selected value [on hold]

I am developing application in jscript. i want that from a dynamic layer the value of different zone it will collect and show in dropdown list and will click on the value(any) it zoom to that zone
1
vote
1answer
89 views

Performing simple line-of-sight analysis in QGIS?

I've just installed QGIS on macOS in an effort to determine if two points in my neighborhood have line-of-site. I've got a 7.5 arcsecond DEM loaded, and a point layer with my two points (no elevation ...
1
vote
0answers
13 views

QGIS Offline Editing Tool

I tried to test the QGIS Offline Editing Plugin but it appears not to work at all. I'm using qgis 2.14.3 running on a Lenovo Yoga 900 and Windows 10 on the client side. For the server I'm running ...
-2
votes
0answers
12 views

Creating Individual Segments from Polyline using C#/VB

I am building a web app that uses a .NET compiler to help the user build and manipulate geometries. I am a little stuck on how to go about programming to handle a case where a user could create ...
0
votes
0answers
8 views

How to integrate multiple tile outputs generated from gdal2tiles into a single google map

Todo Generated tiles from image1.tif - done Generated tiles from image2.tif - done Need to overlay these 2 sets of tiles on top of google maps - this is the problem gdal2tiles generated ready-made ...
1
vote
1answer
24 views

Array written by GDAL with Python script has numbers read as “nan” by QGIS?

I would like to write an array to a geotiff with Python script using the GDAL module. When I try to do something simple like copying an existing GeoTiff via reading it to an array, then, writing to a ...
0
votes
0answers
12 views

GMap.Net: Does the WPF version have overlays?

I just downloaded GMap.Net and I'm just starting to explore the API. I know it has GMap.NET.WindowsPresentation assembly, which is designed to be used for WPF projects. It also has GMap.NET....
-1
votes
1answer
32 views

Mapping Australian election results using QGIS? [on hold]

I am interested in mapping Australian election results. There is a good tutorial here using British elections as an example. However, it relies on him joining two datasets using vlookup. I can't work ...
1
vote
0answers
9 views

QGIS import variable existing .qgs file

I need to include in the file containing geographical coordinates of my region a new external variable that I would like to use to grade the colour of the different parts of the whole map. I know how ...
0
votes
0answers
9 views

MongoDB $geointersecting big polygons!

I'm using mongo to store some geolocalized data, with the goal of retriving them using $geointersect. Specifically I have this document stored in my db: { "loc": { "geometry": { "...
0
votes
1answer
13 views

Non-Earth maps, tile server and scale in leafletjs?

I am looking at putting together a tile server for other astral bodies, such as Mars and the moon. At the moment I am using leafletjs and the Control.Scale at the client end (though could be any ...
-4
votes
0answers
22 views

Golf data x,y,z coordinates [on hold]

I had a dataset of golfing data for multiple tournaments by shot with "lie" coordinates, x,y,z for every shot. But, I don't know how to translate those. X and Y looks like longitude and latitude and ...
1
vote
1answer
21 views

How to insert new data points into CartoDB map?

I'm using NASA api data to populate my database in CartoDB's website to load places where meteorites have fallen. In JavaScript I'm currently creating a specific collection of meteorites I want to ...
0
votes
1answer
22 views

How do I make a field of summarized zip codes, 1 for each, put it into my data table and join the table to shapefile without losing data?

I'm trying to use a field in my shapefile with summarized zip code data. I have a table of hospital admissions data and in this table there is a field of zip codes which are repeated multiple times. ...
1
vote
0answers
21 views

PostGis - st_union polygons, keep sum of attribute

There are multiple My current query is: SELECT (ST_Dump( ST_Union( way ) )).geom AS way, 10000 AS way_pixels FROM ( SELECT way, way_pixels, ...
0
votes
0answers
6 views

Installing mapfish?

I installed the plugin of mapfish then they told that after the installation is done and after restarting my server I would find a module called priniting in the data_dir's folder of geoserver but in ...
0
votes
0answers
11 views

Finding number of points in contiguous census tracts within certain distance? [on hold]

I am using Pennsylvania census tract data (polygons) and oil and gas well locations (points) in ArcGIS 10.1. The oil and gas well location data points have each been assigned to a unique census ...
-1
votes
0answers
16 views

Seeking download link for OpenGeo suite? [on hold]

I have requested a download link for OpenGeo suite from http://boundlessgeo.com/products/opengeo-suite/ I filled the request form, but nothing came back. Does anybody have a direct link for it? or ...
1
vote
2answers
31 views

Values extracted from NetCDF not matching original raw data

I am working with monthly rainfall data from University of Delaware which is available as a NetCDF from NOAA and raw text from UDel's homepage. I would prefer to use the NetCDF format but when I ...
0
votes
0answers
14 views

Visualizing Aura/OMI SO2 data

I am trying to visualize hdf5-files from the OMSO2 data set of NASA so that they will look like this (Orbit 63543 on 25 June 2016, found here and from this website): However, when I try to ...
0
votes
0answers
5 views

gdal_retile for big mosaic file

I have some big mosaic files (about 3GB, 50k x 50k) and use gdal_retile.py to generate the pyramid tiles for geoserver. It takes very long time to generate all tiles (about one day in my computer). ...
2
votes
0answers
8 views

How do I configure map proxy to show only cache?

I have local files of the already built cache. Now I try to configure a layers which gets the cache layer and shows it, but the problem is that I can't make it ignore the original "sources" because it ...
0
votes
1answer
18 views

ArcGIS Explorer coordinate system

I work with ArcGis Explorer and the coordinate system default is WGS 1984. Is it possible to change the coordinate system?
-3
votes
0answers
14 views

process you would use to gather projection information [on hold]

discuss what process you would use to gather projection information for a feature class if it wasn’t posted directly on the source website or available through the item description of ArcCatalog
2
votes
1answer
22 views

Leaflet filled contour map

I have evaluated the Getis-Ord Gi*-spatial statistic for each point in my map. Like this, each point is assigned a Gi-score and due to this a certain color, as you can see in the image below. What I ...
0
votes
1answer
13 views

How does the audience visualise a WFS in Geoserver? [on hold]

I recently started learning Geoserver. WMS is straighforward but in case of WFS, I have read a lot of user manuals and training pages but I cannot figure out how does the actual visual map served out ...
0
votes
0answers
24 views

Free catalog software? [on hold]

Is there any free or open source alternative to ArcCatalog? I am looking for the features of a file manager, so moving and renaming GIS files (for example all the files composing a shapefile) With ...
2
votes
0answers
9 views

PostGIS - raster - bit operations

I have a raster data in the database in separate rows. I would like to select 2 rows and do a bit operation with them (like |, &) and store the result in memory as a query output. Is this possible?...
2
votes
1answer
36 views

Error in lansat 7 image

The actual shape of lake is like in the right corner, but in lansat 7 image that i downloaded a strip is misplaced(left image) or shifted.][how can i correct this, i have tried georeferencing already ...
2
votes
1answer
30 views

SVG symbol colors differences in QGIS 2.12?

I don't understand why SVG symbols, which are colors changeable in the symbol default installation like this airplane: whereas there symbols like the transport bus station, and lighting symbol (...
0
votes
0answers
30 views

Can Qgis read or access to WKT column on ms acesss?

On my ms access .mdb table, linestring (WKT) column are called from add vector layer selected database with odbc connection link. It is Successful but can't directly access lines from ms acess ...

15 30 50 per page