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The sql below is intended to create a point from a know X,Y. It should then buffer the point with a known distance. Last, the sql should intersect the buffer with an underlying polygon layer and return the name field from the polygon the buffer intersects. Seems straightforward. SELECT nameFROM...

I have been trying to figure out how to set the transparency of my labels and label buffers in PyQGIS for an application I am building. I am using the "setCustomProperty" class from the QGIS API. I can't find anything in the API documentation that allows for setting transparency. This is...

We recently switched our definitions from the first to the second format, because OpenLayers threw exceptions on the first one. The used definitions:Old: proj4.defs["EPSG:28992"] = "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.38763888888889 +k=0.9999079 +x_0=155000 +y_0=463000 +ellps=bessel...

Bonjour à tous, Existe t-il une formule pour enlever les "NULL" des tables attributaires et par conséquent des "pop-ups" dans lizmap? Merci beaucoup :wink: أكثر...

I talk about QGIS a lot. I admit it. I also talk about the Intro to QGIS Class a lot. Well.*There were plans a while back to add a second day and I toyed with a “intermediate” QGIS Class. I still have the class and I’m still trying to decide how that works. In August (2015) I did the Intro to...

As you may have noticed, FME recently gained support for what3words, in the form of a couple of new transformers available for free on the FME Store. In case you aren’t aware what what3words does, or how it might be used with FME, here’s a little bit more information for you. What is...

I've been faced with a problem for a couple of days now that I am having trouble solving. This is my first time dealing with the GeoTools library and not sure how to troubleshoot the issue. I am trying to save a shape file using the library but I get the following stack trace...

Can anybody help me track down the correct projection system for some maps I need to georeference in Spain please? The general area is around the villages of Leva and Rozas in northern Burgos. My 1 : 50,000 source material has only a 10,000 m metric grid, some well locations and a...

Is there any way to force the direction widget to not use the geocoder? I am trying to use the widget but when I choose a location it is automatically geocoded and sometimes it changes the location.I want to find the best route using the widget but based on the coordinates of the Start and End...

I'm looking into the steps I need to do to serve my wms out from a 'https://' url. I'm ignorant on the workings of https. If I am following things correctly I will need a signing certificate installed on my server for this to work. I've been searching for 'https://' wms endpoints to look at...

I imported a shapefile ("Test.shp") using DB Manager and ran the following query to extract distances between the outer rings of polygons: SELECT a.gid from_gid, b.gid to_gid, st_shortestline(a.the_geom,b.the_geom), st_distance(a.the_geom,b.the_geom) AS distanceFROMpublic."Test" AS a,(SELECT*...

South Carolina recently suffered a lesson in earth science. El Nino watchers prep for another, and friends of Nepal weep over yet another. Earth science affects us all, like it or not, admit it or not. This year even more than usual, Earth Science Week is an important opportunity for educators...

I'm trying to convert Mapinfo tab file to ESRI shapefile using ogr2ogr either with sqlite dialect or without.When using sqlite dialect, ogr2ogr -overwrite -f "ESRI Shapefile" -dialect sqlite -sql "select * from _MigrationIlot where not (geometry is null or IsValid(geometry))"...

Is it possible in QGIS to display column and row index of pixel in raster? I mean something similar to value tool. أكثر...

For a point data set with temperature data I have, I want to create their Thiessen Polygons in R. So far, the only algorithm I have found is that of Carson Farmer (http://carsonfarmer.com/2009/09/voronoi-polygons-with-r/). I would like to know if there is a ready to use function that creates...

I have a raster DEM that I created in one mapset but I would like to copy it to another mapset for another purpose. Is this possible within GRASS or can I just copy some files over in the filesystem to the FloodModels mapset folder on my hard drive? أكثر...

This video demonstrates how to make 3D model using ArcGIS أكثر...

INTRODUCTIONGlobal Medical Recruiting currently recruiting expatriate Medical Staff on behalf of NovaVita Specialized Paediatric Hospital located in the UAE. Thinking of joining the NovaVita team? Apply for this position using the +APPLY button on your right. Why not pass this position on to a...

Does anyone have any tutorial, link, video etc on how I can use Open Street Map for routes? I know google maps and saw that I can easily do that. But this application will have an internal module and we can not afford the license. أكثر...

The results are posted. I was 7th out of 9 which was somewhat disappointing, but I was only 8 seconds out of 6th so I just have to keep practicing. O.K., back to work. It’s been a rather slow... Click Title to Continue Reading... أكثر...