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I know this has been discused before, but before somebody tell me about data base views or HTML templates, this is my concern: Geoserver returns the geometry field from WMS getfeature info, enabling anyone to create scripts to download the data from the server as if it was WFS. Is there a way...

Brent Pierce and Russell Brennan*discuss effective patterns for administering the geodatabase and working with its contents. أكثر...

I have a database of motorway junctions which are named like this: M90 J8/A91/B996 M90 J1/A90/A921/A985(T) M9 J1A There is significant variability in the length of the strings but they all follow the same basic pattern of Motorway ID Junction Number / Link Road IDs I need to extract...

I used rightclick handler with openlayers2 and now I am upgrading my website to openlayers3 and I cannot find this handler in ol3 أكثر...

Disclaimer: I am not experienced in GIS and hope this question fits in this category. I was wondering whether it is somehow possible to create a circle* around a city, using Google Maps or the like, whilst the circle is not measured in miles (or other distance measure) but in hours of driving...

I would like to plot a circle of possible error on the map in a GPS app. From http://en.wikipedia.org/wiki/Dilution_of_precision_(GPS), we can see that GDOP is equal to "delta of output location" over "delta of measured data". How can we know the "delta of measured data" in order to calculate...

I am at the start up phase of a Project. The task is to develop a GUI where the user specifies position and system properties for a ground based radar, the result should be a geographical map with real-world coordinates where the radar coverage area is displayed. When the radar range is...

Hi Guys, I'm hoping someone can help me here. I haven't got a clue about Python or ArcPy etc...but I am looking into doing some courses. However in the mean time, I am trying to use a script found on GIS Stack Exchange but I haven't got a clue how to use it. Can someone advise me...

How can I configure base layers in Geonetwork 3.0.2? I have tried to edit config-gui.xml and config-viewer.xml, but nothing happen. Is it only work for the old version? أكثر...

I have lots of lines that I need to merge IF and only if they share the same polygon(s). All lines are made from the polygons (copy-paste into line) so they all snap. In this little example line 499, 451, 447, 452 and 448 could be merged since they all share polygon 136 and none polygon on...

This question already has an answer here: Controlling label/attributes of grid/fishnet index using ArcGIS for Desktop and ArcPy? 2 answers I have created a fishnet shapefile in which all cells have a...

I would like to add an image as a layer to a Tile Mill map by specifying the coordinates. Is this possible? If so, how would I do this? I've seen this being done, where an image is set to certain coordinates, but I would like to stretch an image to fit to two corner coordinates. Thanks for the...

Is it possible to create multiple selections with the polygon tool within eCognition? Along the lines of: use poly tool, select an area, press down a hot key and select another area which adds to the selection (not overriding & losing the first). Much like how the lasso tool works in Photoshop...

UAV/Drone-based Precision Agriculture – Vegetables & Fruits Successful applications besides others: – UAV / Drone based industrial inspection, maintenance & repair of oil & gas platforms, assets, utilities, infrastructure & energy parks. – UAV / Drone based remote sensing for mapping &...

Fish-hook symbols for linking territorial exclaves to their "mainland" In the attached CIA map of Kyrgyzstan, there are fish hook symbols that link exclaves with their respective "mainlands," two to Uzbekistan and one to Tajikstan. Does the fish hook exist in one of the symbol...

Bonjour, Peut-on avec Quantum GIS redresser une photo aérienne avec des points caractéristiques connus en 3D (XYZ) ? -- Translation: Hello, Is it possible to rectify an aerial photo with known control points in 3d, in QGIS? أكثر...

Salut a tous, Je suis actuellement en mo e auto didacte carto...QGIS ....et je m'amuse beaucoup... Malheureusement je suis rattrapé par les foudres de l'industrie...et je n'arrive pas a resoudre ce petit probleme. Pourtant je viens de passer la journée a lire toute la presse... أكثر...

I am trying to visualize dataset in my local cartodb as a table in my browser, but when i tried with the following code am getting the below error var table = document.getElementById('mytable');var sql = cartodb.SQL({ user: 'documentation' });sql.execute("select adm0name, name from...

I have this query: [out:json][timeout:25];{{geocodeArea:Latvia}}->.searchArea;// gather results( // query part for: “admin_level=6” relation["admin_level"="6"](area.searchArea););// print resultsout meta;way(r);out body;>;out skel qt;http://overpass-turbo.eu/s/cds Size of output file is...

I need to specify a rectangle symbol in a mapfile. The symbols should be of varying dimensions based on height/width values stored in a table's attributes. Is it possible to do something like that, as with the ANGLE parameter (I imagined the parameters names HEIGHT and LENGTH for the example)...