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I'm using the template of Google layers with an overlay of World Cities(OpenGeo), whenever I try to add some more overlays the application results in an error. It loads all the overlays but whenever I zoom out, it deactivates all the overlays. I'm not sure what the problem is because with other...

I'm trying to retrieve the informations about points around the mouse click. However if the click is not on the inside the symbol but just outside, the geoserver returns an empty response. To simplify the question here are two screenshots: Here the response of the server contains the...

I want to make Choropleth map in Openlayers 3 which is already implemented in Leaflet but not in Openlayers 3. how to integrate 'colorbrewer' in Openlayers 3?Give the working example of it. أكثر...

Recientemente explicamos c أكثر...

Bonjour à tous, Je cherche à éditer une carte me permettant de visualiser pour un même segment de cours d'eau (polyligne), un style catégorisé selon 6 champs différents pouvant présenter les mêmes valeurs (BLEU, VERT, JAUNE, ORANGE et ROUGE). Je souhaite obtenir un style "arc-en-ciel" avec...

In a Ruby-on-Rails application, I need the area in square meters (or any other surface measure, be it ares, hectares, square kilometers, but not in pseudo surface measure like square degrees) of a geographic polygon. The application already uses rgeo and PostGIS (via the...

I am trying to wrap my head around spatialite views in QGIS. However there are severe limitations that make it very cumbersome: Spatialite views in QGIS do no update, if the corresponding tables in the DB change It is not possible to create virtual fields for spatialite views Attribute types...

How do I apply using this same concept, but simply merging all features into one? ogr2ogr output.shp input.shp -dialect sqlite -sql "SELECT ST_Union(geometry), dissolve_field FROM input GROUP BY dissolve_field" أكثر...

I have a SRTM 30m DEM of my area. I want to create a physical 3D terrain map from it (from felt, 3D printer, you name it). I have two questions about this process: With grass r.contour I created contour lines from the DEM, and with v.generalize I smoothed the contour lines. Some of those...

i'm working with ArcGIS 10.2.5, my app has different graphiclayers with objects that are continuously moving around the map (new position data is provided fastly), the problem comes when i try to fix an object at the center of my screen and move the basemap around it's position using...

I have a raster file in ESRI ArcGrid format (e.g. hdr.adf). I would like to run some analysis using GeoTools. I've never used the coverage classes before and I'm having a few problems out of the gates. I can instantiate the AIGReader just fine and I get the correct values when I check the...

This problem is in IE8 and not in Firefox. My first problem was that IE8 don't support JSON natively and I get the "JSON is undefined". I solved this by including json2 or json3. Now JSON.parse (both json2 and json3) throws an exception on proj4.js because of a syntax error. The projection...

In this episode I look at new features in QGIS 2.8 – Snapp to all layers – Temporary Scratch Layers – Advanced Digitizing panel – CAD tools The shortcuts for the panel are: x – set focus to x field y – set focus to y field a – set focus to angle field d ... أكثر...

Summer vacation time. Finally. Dreaming about going to paradise islands? First take our test! As always remember to share your score with the world! And to check out our other*GeoawesomeQuizzes! PARADISE*ISLANDS CHALLENGE CAN YOU RECOGNIZE THESE ISLANDS BASED ON SATELLITE IMAGES? DID YOU LIKE...

All, I have data in a very old "winstar" type of format. However, currently I only use ArcGIS and QGIS. Does anyone have an idea on how I can import this old-fashioned winstar stuff to ArcGIS or QGIS including the underlying attribute table? Currently, I can only visualize the map, but I...

I have published my Postgis table as wms service with Geoserver. And I want to create my custom tile via wms. For example my map SRID is 4326 and uses OpenLayers. When I add my wms layer on map, wms service sends tiles on my map. Sample tile URL...

2015-07-03 09:42:41 | Geobedrijf Geodan en ICT-dienstverlener NCCW gaan intensiever samenwerken. De overeenkomst waarin zij dit vastlegden is afgelopen week ondertekend d أكثر...

2015-07-03 09:39:11 | Eind mei 2015 is de aanbesteding inwinning en controle AHN2016-2017 gepubliceerd op Tenderned. أكثر...

On 11-12 June in Szczyrk (Poland) took place V Silesian Convention of Computer Science and Administration, whose main topic was free and open source software and open data. The convention was attended by over 100 participants from all over the … Continue reading → أكثر...

Hi guys, I have created two caches for a project and there are coexisting within the same folder. Right behind I open ArcMap, add my File System Raster Layers (or super tiles) and Share as Service. My *.mxd document has exactly the name as the hosting file from my caches folder...