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I have a several large comma separated text files each with multiple attributes. Each text file is about ~2.9 GB with 21 million lines. Each line contains X, Y, VALUE1, VALUE2, VALUE3, etc. The X and Y for each row represent the centroid of a regular grid (50m) while the values are results...

Are there any known hacks to get subsurface data into Google Earth? Sub-ocean-surface works with the release of Google Ocean, but you cannot go below the sea floor. The other major limitations of Google Earth (no vertical data, single placemark balloon) have hacks to get around them (thin...

We are trying to take our Canadian election event map from CartoDB -- http://cdb.io/1TabLyz -- and introduce the toggle button feature allowing users to filter by party. Both myself and our lead developer have gone through this Toggle tutorial process --...

I want to visualise the strike and dip (essentially the same as aspect and slope) of measured rock faces in ArcScene: the idea is to have a coloured DEM of the field area, with an oriented rectangle wherever we have measurements of strike and dip. I can see this working by symbolising a...

I want to download a shapefile for Meghalaya. Where do I get it from. Thanks أكثر...

ITWeb sits down with GM, Etienne Louw, to discuss TomTom’s various business units and the unique offerings available from their Geospatial component. أكثر...

Main street in Chittenango, NY – a Madison County community Rural communities are all around us. Covering the vast majority of the national landscape, small towns, villages, rangeland tribal areas, working forests, and farmlands are integral to the American economy, and home to nearly twenty...

I am working with c++/QT and c++api gqis 2.8.2 I want to change the geometry of a feature,I have this code : QgsVectorLayer * lLayer = mMapLayer.value(TRACKS);QgsVectorDataProvider * lDataProvider;lDataProvider = lLayer->dataProvider();//create pointgsGeometry * MyPoint;MyPoint =...

When scrolling down a page and past a leaflet map, if the user's mouse cursor is inside of the map, then the scroll bar stops and the browser window becomes stuck on the map. Is there a way to completely disable the scroll behavior on the map so that scrolling operates as normal? I'm already...

in raster menu in QGIS, only raster calculator is available, how to get other tools, like wrap (reproject) please see the image for help. help me to get this. أكثر...

I have an api sitting in front of AGS that requires it's own authentication. I am using setRequestPreCallback as stated by the ESRI docs. In the image below, you can see that the first 2 requests are returning 200. The first request is CORS Preflight and the second request is the JS api getting...

I am trying to insert a python list of tuples to arcgis table. there is type mismatch which is obvious. Each Value in tuples have different type and fields in table have different data types. So, how can I loop through each field, check data type, perform type cast on each values in python...

I've been checking the Aspect analysis tool and several sources indicate that aspect is measured from 0 to 360, starting North and going counter-clockwise. Nevertheless, I've been testing it on several regions, some of which I know quite well and the measurement is actually being done clockwise...

I have a list of values for some data recorded via Magnetic susceptibility, I have these in a shapefile and want to try creating a colour map out of the values.The values that I'm using relate to, OSGB 1936 / British National Grid, EPSG:27700 Example of the data in csv. file.I want to try to...

I am working new with QGIS (Version 2.8.2 / Window 8.2) and try to make Polygon from Line (see example picture 1) with the fTool LineToPolygon, but it doesn't work (see picture 2). I work with complex geological maps and should make PLG from Line like in ArcGIS.Thanks for help أكثر...

I am running a model in ModelBuilder. The input are raster files in *.tiff format and the output are *.asc format. I am using iterate raster and there will be 365 input and output files using %name%.asc e.g input file : LST01011990.tiff --> output file LST01011990.tiff.asc How I can output...

Bonjour à toutes et tous, Encore et toujours des petits soucis avec le plugin Lizmap mais que je pense résoudre tout bientôt grâce a vous :) Ma configuration WinSCP fonctionne bien car lorsque que je transfére mon répertoire modifié directement vers mon serveur distant, je le retrouve bien...

I have a list of unused/unassigned domains in table format. It's actually a table inside a GDB. I want to build a model that iterates through this table and deletes the domain. Is this possible with model builder? I tried to create a field value iterator, however, it won't let me link it up with...

Situation: I have a Style File to symbolize data of a FeatureClass (FC) in a GDB. The definition of Layer properties is set to "Categories" > "match to symbols in a style". Label is linked to a value field of FC. In terms of Style Symbolization, need to compute a way to change that Label...

by Jennie Saxe Rain barrel water is great for backyard gardens and saves money, too! A few months back, I blogged about installing my first rain barrels. With the hot summer nearly in the rear-view mirror, I can report that rain barrels work…and they save money, too! How do I know that the...