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Great Escapes: The Story of MI9's Second World War Escape and Evasion Maps by Barbara Bond (Times Books, October 2015): history of the escape maps produced for prisoners of war. Pre-order at Amazon (Canada, U.K.). Mapping the Second World War by Peter Chasseaud (Collins, October 2015): a...

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I have 2 rasters, ones shows aspect and another shows date of snow thaw. I want to extract the date of snow melt based on values from the aspect raster. For example I want all the snow thaw dates from south facing slopes. I have already identifies north (1), east(2), south(3), west(4). I have...

Can you automatically insert the print composer name and project file path as text in print composers in QGIS (v2.8) without copying and pasting the path? e.g. equivalent functionality to inserting Dynamic Text in ArcGIS? I see the question has been asked (and answered) before here: How to add...

I am using QGIS 2.2 64 bit in windows 7 system. I have an issue while saving the layers after editing. Its taking more time to save my edits. Some times it's working fine but very often i am getting this issue and also the QGIS will be in Not Responding stage at that time. I tried in different...

I am trying to project a Raster. In R there is the projectRaster() function to to this: # example Rasterrequire(raster)r

I downloaded zip shapefile and modified it in ArcGis Pro. How can I save changes as a new shapefile? I see only the option to save as Layer File. If it is not possible, how I can edit existing shapefile, and have it in format of shapefile? أكثر...

Bonjour. Je cherche depuis une bonne heure maintenant comment utiliser un script python (généreusement laissé sur mon ordinateur par un ancien collègue) sous qgis (je suis sous 2.8 Wien). Mais je n'y connais rien en python et tout ce que j'ai lu m'a fait très mal au crâne... :confused: Je...

This live web map showing the Top 10 Most Job-Accessible Cities in the USA*is an excellent resource for teaching and learning about urban forms, public transportation, and economics. *The maps show the number of jobs accessible within 30 minutes by walking and/or public transportation. *As I...

This month the Open Data team brings you another release with improved data visualization, support for standards-based metadata, public commenting on datasets and much more! We made some major harvesting improvements under the hood to improve data quality and notify administrators of problematic...

I am trying to run some network analysis within 3D buildings to study handicap accessibility, best routes, emergency evacuation routes, etc. In ArcMap 10.3 there is a simple and easy to use toolbar that allows you to run the network analysis "on the fly" (directly to the map) and it is very...

i was checking the best way to cut linestrings by points. The scenario is: lots of streets, need the segments cut by intersect points, kind of this: I got - linestrings (full uncuted by points) table - st_intersection points table I need to get the independent linestring segments cutted by...

Some times qgis2web pluggin does not work. I have this python error message:Ha ocurrido un error mientras se ejecutaba el c أكثر...

I have been experimenting with generating isochrones with pgrouting using osm data. So far, I have been able to generate isochrone polygons by getting the concave hull of the nodes returned from the pgr_drivingdistance function. Here is a sample query to generate 10 minute (0.166667 hr)...

I am displaying hurricane paths on Google Earth where if you click on a path it shows a description in a window containing info such as wind speeds, category, location, etc. This works perfectly fine on the desktop version of GE. My problem comes on the mobile side. Google Earth only displays...

I face the problem that not all tiles are loaded on a map export via the QGIS composer. This happens randomly with all kinds of tile servers provided by the openlayers-plugin. Any hint how I can force loading the tiles before the image is saved? I hope this is not a duplicate - I've been...

Introduction: I'm still fairly new to GIS and have only had about 3 weeks experience. I set up an OSM server locally with .osm.pbf data and it worked just fine. When I pulled the map in the browser, which implemented leaflet, all the names of streets, buildings, and other objects were already...

If this question has already been asked, please direct me to the discussion. If not: I am trying to import a vegetation data (raster) from USDA into QGIS. One file "w0001.adf" can be added using the "add raster" menu, but the attribute table and other info register as error or errors. Can...

I ran a spatial lag regression model in R using spdep. Due to cross-validation of my results and data-size, I ran the same model in GeoDa but the resulting indices didn't match. My data(slot):head(sdat2@data, 3) lsoa n_brg n_vln rt_vl rt_br id RPC1 RPC2 RPC30...

The USIBD will be hosting an important building documentation conference September 16-17, 2015 in Las Vegas, NV at the Hard Rock Hotel & Casino. The theme “Where Technology Meets Business... Click Title to Continue Reading... أكثر...