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I think I understood the steps to write an array to a raster file using python. however it doesn't work in my case and I don't know why. I have an array that I want to write to a Geotiff with Swiss Oblique Mercator Projection. I have a DEM as Geotiff in the exact same location with same...

Data set contains polygons. How can I calculate the distance to the nearest 5 polygons in the data set in QGIS? أكثر...

I'm currently working on creating a data model that will allow the analyst to digitize two non-parallel lines of approximately the same length. Currently the methodology is to divide the lines into 11 points and avg the distances between the two lines. Any suggestions on how to simplify this...

Is there a free simple way to serve / host the .html files the awesome Qgis2threejs plug-in produces? I have tried using Google Drive as shown here and here without success. Also had same results using One Drive.I tried putting the 2 folders (dat-gui and threejs) and the html file in Google...

I want to auto refresh my Map service when my layer gets refreshed.is there any way to achive this. thanks and regards,GK أكثر...

I'm new in oracle spatial but i know ArcGIS Network analyst.ArcGIS create nodes for routing automatically and uses the nodes in network analyst. In oracle spatial something is different from network analyst in ArcGIS.The user must fill two fields in the link table(table of the segments).the...

I am (very) new to GIS in general. I would like to convert a satellite image of a province into raster, assigning each pixel its own data (i.e., a number and a name) based on its html color code. For example, shades of red and/or blue would be assigned the data "id=1; name=Residential" and...

I don't know why since yesterday Google Streets baselayer is not displayed if Google Hybrid is not selected first. I thought it was my fault but the same happens with the example: http://dev.openlayers.org/examples/google.htmlAnybody knows?. Regards, Ramiro. أكثر...

I would like to apply a style to the KML that gets generated from the write() operation of OpenLayers.Format.KML. The current style that is on the vector layer does not get exported with this code: function GetKMLFromFeatures = function (features) { var format = new OpenLayers.Format.KML({...

Why Traditional GIT Systems are not Ready for Big Data, Smart Grid, or Real أكثر...

le GPS devrait être configuré en quelle unité pour que les données soient exploitables sur ARGIS أكثر...

bonjour à tous, Je veux créer une couche polygones en pyqgis avec la console Python de QGis et je bute sur un problème avec addFeatures qui donne un message "Invalid syntax" Le code est le suivant : vl1 = QgsVectorLayer("Polygon","Pixel grille", "memory") pr=vl1.dataProvider() fet =... أكثر...

Summary: A new, official height for Denali has been measured at 20,310 feet, just 10 feet less than the previous elevation of 20,320 feet which was established using 1950’s era technology Contact Information: Mark Newell, APR ( Phone: 573-308-3850 )...

I hope this is still kind of a QGIS related question. My QGIS 2.8.2 standalone app provides several decorating layers (e.g. cartographic grid, background layers, reference points) which should be not changed by the user (neither editing nor hiding), as well as layers, the user can modify and...

I am working with QGIS (newbie). I have a raster map with 0.5degrees resolution. I created a 0.5degrees width grid layer and I compute zonal statistics from the raster. My problem is that it seems to me that the computed zonal statistics are shifted 0.5degrees, it is, they do not correspond to...

Does anybody know why there a gap appearing between two point layers create with ESRI and QGIS when I a reproject, from the same source file, to Robinson ? The source coordinate system and destination coordinate system share the same datum. It seems there a shift depending on the technology...

I have installed a PostgreSQL 9.3.5 64-bit on a Windows Server 2012 machine and added Postgis 2.1.3 extension. I need to use the ST_StraightSkeleton function and after some search on the web I found that I need to install sfcgal extension. Everything I have read on the web about how to...

Using Geocortex Workflow designer, I am trying to export the results that are written to a أكثر...

I have a really basic script that selects an input Polygon by an Attribute and then does a series of Buffers on that, a select by location and then appends the result into a final output. I need to run this process through each feature individually. I created a tool parameter for the initial...

I'm using luciadmap 2013.1 and, from what I understood, one can switch between APP-6A and APP-6B symbology like this: new TLcdEditableAPP6AObject(ELcdAPP6Standard.APP_6A) new TLcdEditableAPP6AObject(ELcdAPP6Standard.APP_6B) Now, I was wondering about the differences between both...