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I have a set of latitude and longitude co-ordinates which looks like, Lat=9339452, Lon=4294611105 Lat=9386855, Lon=4294690789 Lat=9388898, Lon=4294697554 Lat=9389437, Lon=4294725570 I need a formula to convert the above given GPS co-ordinates to radians or degrees. Please let me know if you...

Bonjour, suite aux échanges de cette discussion j'ai une interrogation concernant la disparition de la barre d'outils GRASS. je suis allé dans "vue" et barre d'outils mais impossible de trouver Grass qui est bien présent sur ma machine. Si quelqu'un a une idée et en espérant que ma requete...

Having trouble while generating a TIN on a manually modified topography file.I'm a newborn of ArcGis, but I intensively tried to fix this bug, with no result. As you can see, the bug deals about continuity in the generated model, the level curves seems to be logically disposed but the...

I have thousand of tif tiles and a vrt file, generated by using gdalbuildvrt. At the moment they are at the same folder level in the system, but if I open the vrt file with Notepad I cannot find any url, address or location. Does this mean that the vrt file and the tiles cannot be separated from...

Please, I have a jpg image which I want to work on, but I have a problem with it. I understand that I need a shapefile that is already georeferenced to georeferenced the jpg. Pls, how do I know that a map is georeferenced? And also, how doing I bring the two jpg to appear on the base mapa at...

I would like to transform coordinates expressed in the Swiss reference system LV95 into LatLong/WGS84. On the website of the Swiss topography centre, there is an application to do so, however altitude data are required and I don't have them. In this question, the user also wants to convert...

I want to build a map web application with OpenLayers 3. I downloaded some map data and cut it into tiles with ArcGIS server in WGS 84 coordinate system. Here is my conf.xml file for my map tiles. It contains origins, scales, and resolutions. GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS...

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am a master's student interested in doing GIS project in the line of agriculture. Kindly help me brainstorm on the above subject by suggesting some of doable research topic in GIS preferably in agriculture. Thanks أكثر...

Is there a way to prepare a project on QGis with many layers and to publish it under wms service on Geoserver? Thank you for responses أكثر...

I am installing QGIS 2.8.2 through OSGEO4W installer (32 bits) but in this moment, I get several errors of "Unable to get license....." in some librarie. What is happening? Also, there isn't libraries by default in installation. Can you help me please? Best regards,Lia Duarte أكثر...

I'm using HERON with google maps,everything seems to be fine except for the getFeatureInformation.I'm not really sure what the problem is as I'm still a beginner. I don't know if it's the layer sequence or the proxy setup or something else because during the process of my research I saw a couple...

as a cartographer I work with TileMill to visualize geodata. I installed a local PostgreSQL server with PostGIS and osm2pgsql. Everything works fine. Anyhow, I am new to working with servers and the command line approach. So, in learning the basics of database management, some GUI tool would be...

In this class Dr. Manishika explains the basics of cartography, maps and scale, various kinds of maps and scales, representative fraction and more. أكثر...

We recently watched this interesting YouTube video about the complicated borders between Belgium and the Netherlands. Baarle-Hertog is a municipality of Belgium which consists of 24 separate exlaves inside the Netherlands. To add to the complexity, there are 7 enclaves of the Netherlands...

Bonjour, A partir d'un tableau du personnel mentionnant ses absences dans un calendrier créé en Excel, je souhaiterais créer un query me permettant de voir qui est présent au bureau aujourd'hui ou un autre jour défini. Le tableau actuel en Excel (d'une tristesse accablante) mentionne le nom...

Bonjour, S'il vous plait existe t-il un guide d'utilisateur à MapInfo version 11.0 en Français? J'utilise le guide en anglais mais il ya certaines notions que je n'arrive pas à cerner surement à cause de la langue. De plus, j'ai besoin d'aide car j'ai pour projet de concevoir une application...

I use EasyCustomLabel to move some labels, but if I try to change the dimensions of the chars I cannot view any changes, bot in the work and in the printing sheets I use QGIS 2.6.1 أكثر...

i have this code : pLayer is a QgsVectorLayer * QgsFeatureRendererV2 * lrenderer = pLayer->rendererV2();QList lSymbols = lrenderer->symbols();QgsSymbolLayerV2 * MySymbolLayer = lSymbols.at(0)->symbolLayer(0);MySymbolLayer->setColor(...

[MapInfo 10.x] calcul valeur d'un champ en fonction d'un autre (si colA= x ou y -> co Bonjour, je souhaiterais remplir un champ selon les valeurs d'un autre champ. Plus précisément j'ai une table de points codifiant l'état hydrologique (colonne A) comme suit : 0 = assec 1 = poches d'eau rares...