0
votes
0answers
2 views

Generate random floating value

I need to generate random floating number I between 0 and 1 in the field of attribute table for ArcGIS 10.3 version.
0
votes
0answers
6 views

QGIS doesn't update some snapping options from Python

I've just installed QGIS 2.14.3 (Essen) on a Windows 7 machine, so I've got the default configuration on everything. This means that under "Settings -> Options -> Digitizing", I've got "Default snap ...
0
votes
0answers
5 views

Mapbox Error: Style is not done loading

I'm trying to draw on a mapbox map, based on suncalc results and using geojson. First I tried to create 2 functions, one to each line I was trying to draw. But when I did that, it would only display ...
0
votes
0answers
4 views

Clipping and exporting raster from QGIS to Google Earth?

I have a 3 band raster from which I need to clip a portion, and then visualise it in google earth. The problem is that the file generated after clipping, shows OK in QGis, but looks completely black ...
0
votes
0answers
6 views

QGIS crashes when printing

I have a 50 MB shapefile. I am trying to import it into Illustrator. When I try printing to an svg file from the Print Composer, QGIS crashes. I am using QGIS Essen 2.14.3. I have tried lots of ...
0
votes
0answers
3 views

Google Fusion Tables - KML import failed, can't figure out why

I hope that you may be able to offer some advice on how to solve a problem I am currently facing about importing files into Google Fusion Tables for use with Google Earth Engine. I have looked at the ...
0
votes
1answer
5 views

zoom by dragging a box in gxp geoexplorer suite

please help me!! How to add zoom by dragging a box in gxp opengeo suite? I need to add the tool box zoom by dragging the mouse mm yes, but in gxp do not exist
0
votes
0answers
3 views

osm2po pgrouting giving wrong result

I'm trying to calculate the shortest path between two locations using OSM data (inserted in a database using osm2po) and pgrouting. Here is the query I used : SELECT x1,y1 FROM pgr_dijkstra(' ...
0
votes
0answers
7 views

Gstat krige() error: Covariance matrix singular at location [917300,3.6109e+06,0]: skipping

Recently, I am facing a strange problem when using krige() in gstat library. This error was not there a few months ago because I am using the same code with the same data that I successfully used ...
0
votes
1answer
5 views

Adding drop-down menu to leaflet map to update map/tiles to new location?

What I want to do is create an interactive choropleth map that has a dropdown menu of various countries so that the map updates when you click on that country. As an example, here's an interactive ...
1
vote
0answers
6 views

GeoJSON path using d3

I've been trying to make an animated path using d3, JSON, and a list of coordinates. This is the result in JSFiddle: http://jsfiddle.net/5m35J/92/ As you can see, there is a red dot in the corner, ...
0
votes
1answer
13 views

Convert WGS-1984-Pseudo Mercator to OSGB1936

I've imported UK wide coverage of ESC wind exposure data as a raster to ArcMap 10.2. The data is in WGS 1984 Pseudo Mercator which puts it way out against the UK OS standard grid. I can't get it to ...
0
votes
0answers
9 views

how to set up a querystring for a mapserver layer?

I am trying to query a mapserver layer via url, but I am having trouble finding syntax examples. I want to use the indexquery mode and found this documentation http://gislars.github.io/mapserver_docs/...
0
votes
0answers
3 views

Geotools Getcapabilities timeout

I'm using geotools to get all layers from a Geoserver. WMSCapabilities caps = null; try { WebMapServer wms = new WebMapServer( sourceServer, 1000000 ); caps = wms....
1
vote
0answers
5 views

No 'Access-Control-Allow-Origin' header is present error when requesting json response from Geoserver

I am still working to get my GeoServer WFS displayed in my Leaflet map and cannot get the Ajax response to work properly. I have already run the "getFeature" request in my browser and it returned json ...
0
votes
0answers
2 views

Dynamic Symbolizers w/ CQL not URL encoded

I am trying user Dynamic Symbolizers in my SLD: <?xml version="1.0" encoding="UTF-8"?> <StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xmlns:ogc="http://www.opengis.net/ogc" xmlns:...
0
votes
0answers
12 views

Ordnance Survey Maps in .osm.pbf format

I see that you can download Ordnance Survey maps as ESRI Shape files, so I would like to take those and convert them into a .osm.pbf file so that I can more easily use them. Are there any tools out ...
1
vote
0answers
6 views

Drawing line that conects pins in ArcGIS Online Story Map?

I need to draw a line in the streets connecting the pins. I have a public account. Is that the problem? Does any one know how to do it? Attached is what I'm trying to accomplish.
0
votes
1answer
17 views

How to find midpoint of 2 geographics locations?

I am trying to write a C++ program which finds the geographic center of two locations (defined by latitude and longitude, I can ignore the altitude). This center point shall be on the halfway of the ...
0
votes
0answers
13 views

Seeking free river and catchment maps of UK?

For research purpose I would need a map of UK rivers and catchments as I would like to select the gauges of my interest. These maps should be in shapefile, raster or anything else format readable in ...
4
votes
1answer
239 views

Odd, old coordinate formatting from 1997 GPS

A typical coordinate is given as 68 35 067 N 123 54 817 W. I thought maybe some old timers could help me out. The author says in his report of the time that they were using a GPS, but I contacted ...
0
votes
0answers
21 views

How can I manually create shapes from overlapping shapes of other layers?

I have two shapefiles, one showing the borders of the US states, the other one showing river basins. Both layers are filled with solid colors, with the US states differing in hue and the river basins ...
-1
votes
0answers
29 views

What is the difference between GMT and UTC? [on hold]

I'm confused about the difference between GMT and UTC. Can someone clear this up for me?
1
vote
0answers
18 views

Getting error message “An error has occurred while executing Python code: ZeroDivisionError: float division by zero” [on hold]

I am getting the following error while executing Python code: An error has occurred while executing Python code: ZeroDivisionError: float division by zero Traceback (most recent call last): File "...
0
votes
0answers
10 views

Publishing ArcGIS map/.mxd to a WMS [duplicate]

I'm looking to publish .mxd data/view out to a WMS then to apache, etc. I do NOT have ArcGIS server, and there are tidbits of MapServer and Geoserver on my servers from the previous employee that ...
0
votes
0answers
10 views

gdal.RasterizeLayer: clip image by geometry

Stuck for few days. Trying to cut image by polygon. Have input geojson file that I convert from lat/lon coord to UTM and next need cut image by this polygon. I use 'MEMORY' to take layer in memory. ...
1
vote
0answers
15 views

Sri Lanka paper map sheet key

I have a list of river gauging station locations, with the coordinates given in a local system: L/24(5.5*8.15) O/13(3.5*0.15) P/3(0.9*2.1) M/17(13.5*1.6) Presumably these coordinates are pointing ...
2
votes
1answer
33 views

Strava Metro users, how to interpret BIKECNTN?

Glasgow city provides its Strava user's stats created 2013 (link below). The CSV file contains all the expected columns including, "AMCOMMUTEN" "PMCOMMETN" "BIKECNTN" and so on. However, when we look ...
0
votes
0answers
16 views

How to create a new datum transformation within the ArcGIS REST API?

I'm trying to get a new (EPSG) datum transformation parameter added to the ArcGIS REST API so that I can then get a WKID code for use in ArcGIS Online applications. Does anyone know how to get a new ...
1
vote
0answers
5 views

How to display dynamic text together with date during timelapse?

I'm using time enabled data showing how environmental risks of gas development increases over three scenarios (reference, exploration only, small-scale development, large-scale development) in four ...
2
votes
1answer
31 views

How to find near polygons

I have some polygons with attributes (in my case, some polygons have health establishments) and others without attributes (without health establishments). Is there a function that I can use in order ...
0
votes
0answers
17 views

Convert SpatialPolygonsDF boundaries to SpatialLinesDF keeping information on polygons

I have a SpatialPolygonsDataFrame and I need to convert polygon boundaries into a SpatialLinesDataFrame retaining the attributes of the 2 polygons The structure of the SPDF looks like this 'data....
1
vote
0answers
4 views

ArcScene: Export Multipatch to CAD

I have a 3D multipatch feature class in a file geodatabase using ArcScene 10.4.1. I would like to export this 3D data to CAD using "Export to CAD (Conversion)". The tools runs, but the resulting DWG-...
1
vote
1answer
16 views

Character problem when save map Atlas

I have 45 maps produced with Atlas. I would like to save them with their names. However, there are character in these names that windows doesn't accept in file name. So, I'm tring to do a expression ...
1
vote
1answer
25 views

Smoothing grid of cells inSrcGIS for Desktop?

I have a grid of cells that outline sharp transitions between different neighbour values: I would like to "smooth" the transition between the cells so that I obtain some sort of gradients between ...
0
votes
1answer
18 views

What is the index formula to calculate water stress index using multispectral sensor (Red, Blue, Green, Red edge, NIR)?

I am having a multispectral sensor with Red band, Blue band, Green band, Red-edge band and Near-Infrared band. I need to find water stress using these bands, is it possible to find and if yes what ...
0
votes
0answers
18 views

Land cadastre USA

I need to obtain cadastre information for all the USA limited to land terrain only, no urban zone. Is it possible to obtain this information? Does anybody know any services for WFS or SHP download?
0
votes
0answers
12 views

Polylines to raster (Input: Coordinates end point of polylines) using Python [on hold]

I have coordinates of every corner of each polyline. I need to convert the polylines into a raster image using some python code. Polylines drawn can be seen in the attached figure.So, i need to create ...
4
votes
1answer
82 views

Land Use classification and canopy cover using LT8 imagery and ground truth points in QGIS

I am trying to run a land use classification with QGIS on LANDSAT8 imagery to classify the various land uses within an area of northern Vietnam. I want to distinguish between primary forest, ...
1
vote
1answer
18 views

arcpy export data view to jpeg: label size changes

I designed a little arcpy script to export different layers in a data view to jpeg (world files included). It's the first time I actually use arcpy but it works. The only drawback is that the labels ...
1
vote
0answers
32 views

How to join a table based on postcodes in QGIS?

I have 2 datasets, a shapefile with postcode polygons and an excel table (.xls) with postcodes and building count. How to represent the excel table in the map? I know that in ArcGIS it's possible to ...
1
vote
1answer
21 views

Add a geometry in sqlite in pyqgis

I'm trying to create a geometry column in a table which I created. I found the following code: cur.execute('SELECT addgeometrycolumn(%s, %s, %s, %s, %s)' %(table_name, geometry_column_name, EPSGcode,...
2
votes
0answers
26 views

NDVI analysis of LANDSAT 8 imagery in QGIS

I am trying to run an NDVI classification of 2015 multispectral LT8 imagery in QGIS to assess the quality of vegetation cover in regards to habitat suitability for a primate species in northern ...
1
vote
0answers
11 views

Run processing (GRASS) algorithm as administrator

I am trying to use GRASS algorithms in a plugin of mine, in order to improve the quality of a shapefile containing lines that will be used as a graph later. The first algorithm I want to use is the ...
1
vote
1answer
14 views

Add GeoJSON layer to OpenLayers 3.16 from GeoServer

I try to be as simple as possible with my problem. It's just to display a json layer from my Geoserver on a OSM layer with a ol3.16 page. I take the example from this page: http://openlayers.org/en/...
0
votes
1answer
34 views

ArcMap: export each x/y coordinates to a separate row

I am trying to sort out how the coordinates of each point in a multipoint or polyline feature could be exported to a .txt with python so the exported file looks like this: point1_coordinates_x ...
-1
votes
0answers
25 views

Finding downstream Irrigated area for upstream outlet?

I'm trying to determine a command area for a given irrigation project based on the amount of stream flow at the head work (upstream) of a command area. The stream flow at outlet point is computed ...
0
votes
0answers
11 views

Geowebcache and Geoserver Layer preview low quality!

I am very new to the Geographic Industry, I have encounter a big problem, the cached layer is on really low quality! Here are the details: Gerserver 2.8.3 Tomcat 7 Java 8 VM We are using GeoTIFF ...
1
vote
1answer
81 views

Can't create polygon in an editable layer in ArcMap 10.3

There is an editable polygon layer in ArcGIS 10.3 I can edit already existing polygons but I can't create new ones. The layer does not appear in the "Create Features" list. I have another polyline ...
-1
votes
0answers
13 views

Call a web service using Gama-Platform ABM

I want to call a web service using Gama-Platform. Is there any built-in support for it? If not, how can I write a custom plugin for this?

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