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I'm new to Mapbox and ran into the following problem:I'm loading marker positions from an external geojson and want to manipulate the looks of several markers filtered by an attribute like "title".My method seems to work for one kind but when I try to add more to the filter, changes are...

I am trying to dynamically compose and send a WFS GetFeature query (using OpenLayers 2.13) based on user input. User has an option to apply ogc:Filter to the query but may choose not to, so a whole set of features would be returned. To prevent being overwhelmed by too many features, I added the...

A Fresnel Zone is a region of space between a wireless transmitter and receiver within which obstructions may cause interference to the signal. A couple of years ago we showed you a site called EngineMaps that offers to create a KML showing the fresnel zones for a given pair of points. As far as...

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If you are an electric/gas user who missed signing up for a GIS data health check at the UC 2015, you’ll be glad to hear that Esri is offering this at the Electric & Gas GIS Conference*in Providence, RI, Oct 5-8. A GIS data health check session is where an Esri electric/gas industry expert...

I am trying pdal to perform a ground filtering on a point cloud (las file) with colors. I use the pcl option and this tutorial Identifying ground returns using ProgressiveMorphologicalFilter segmentation pdal pcl -i input.las -o output.las -p sor-pmf.json --visualize -v4However, the result I...

Working with leaflet api where i have added a custom marker control... There also we can add multiple baseLayer and toggle between these layers.... Lately i was trying to bind the markers with this base layer and i can't understand the documentaion very well so having difficulty if someone...

I've created a custom map in QGIS with a few shapefiles. I'm using leaflet.js to render the map and the shapefile points and everything lines up correctly. The CRS is set to 4326. When I export the shapefiles as geojson from QGIS, the coordinates are huge and look something like this...

Just as a preamble: it seems obvious to me that this has almost certainly been done by someone, somewhere. Almost everything has been, and if anyone could point me to the appropriate hole in the interchoobs I will sing their praises. OK, so here goes. Background. I have a task that can be...

Does anyone knows if there is a flat file database of points of interest in a json format somewhere available for download? If not how would one set off to create such a database? Are there any tools available for such a task? أكثر...

I'd like to build a list of popular points of interest and tourist attractions for many/every city in the world. Is there any sort of dataset that I can use for this which either contains only popular attractions, or something like the OSM data with a popularity index that I can filter through...

2015-09-15 12:14:45 | Op dinsdag 3 november 2015 vindt in het Chassé Theater te Breda de Geotechniekdag 2015 plaats. Dit jaar is het thema: 'Proef op de som’ أكثر...

Today for the first time, we’re releasing Street View imagery of Kenya—including the Samburu National Reserve, Lewa Wildlife Conservancy and the David Sheldrick Wildlife Trust—in partnership with Save the Elephants and with the support of the Samburu County Government. We'll let Save the...

okay, let say I have elevation data and edited in photoshop, the result file, which is tiff data cannot be export as a elevation data in Globalmapper, how to make my data become elevation data again? any idea? أكثر...

I have a point data with a date field. I want to create an animation that will show from its inception how it the number is growing with dates. There are 1 million data and the date range is 5 year. So it can be shows monthwise increasing. I saw a tutorial regarding this earlier. If there is any...

I am developing in Java on Windows 7 with Eclipse (Luna). I am using gdal for some ogr processes and running the application from eclipse is fine, but running from command line on the same machine is running into problems. and I get the following: Caused by: java.lang.UnsatisfiedLinkError...

I have a shapefile that contains over 100 squares of different sizes and I want to divide each of the squares into quarter sections. I've written a short python script to do a row iteration and for each square, create a fishnet with 2 rows and 2 columns based on some predefined condition...

I am using infotemplates in ArcGISDynamicMapServiceLayer to show the info popups on the map. But the problem arises when using Measurement tool the infowindow popups on every click on the map. Since I haven't placed any listeners or code for fetching the features and showing the info window. I...

I am trying to upload a large number of 3 band rasters to a PostGIS database using raster2pgsql on the command line in Windows 7. Here is my command: raster2pgsql -I -C -s 27700 -F -t 100x100 -M F:\Filedirectory\myfile.tif mytablename | psql -h localhost -p 5942 -U postgres -d...

Hi guys I need to learn develop add-in in ArcGIS 10.3. I have this book : http://www.amazon.com/Beginning-ArcGIS-Desktop-Development-using/dp/1118442547 but he was using visual studio 2010 and ArcGIS Runtime SDK 10.1.I have Visual Studio 2013 and ArcGIS Runtime SDK 10.2.5 He used ArcGIS...