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I have a shapefile of an Ordnance Survey Mastermap ITN road network that I am trying to load into an agent-based modelling software called Mason. When I try to run my model I get the following error: Exception in thread "main" java.lang.IllegalArgumentException: shpFile is null; likely file...

Contaminated water has turned the Rio Doce orange-brown as it flows into the Atlantic Ocean. أكثر...

I have a number of raster files with known latitude/longitude of the picture edges. What is the appropriate way to import such pictures in QGIS with correct coordinates? All the options that I can find in QGIS raster transformation require me to input some other coordinates than lat/lon, and I...

The following script works great from the command line but crashes from the pythonaddin: import Tkinterimport tkFileDialogroot = Tkinter.Tk()root.withdraw()pathtest = tkFileDialog.askopenfilename()print pathtestpathtest = pythonaddins.OpenDialog('Open Item', True) does not work for me because...

قم بتحميل كتاب أساسيات نظم المعلومات الجغرافية لصاحبه وسام الدين محمد عبارة عن وقف علمي منه للعموم من أجل الاستفادة والتثقيف نقدمه لكم للتحميل والقراءة المباشرة. تحميل الكتاب طريقة التحميل بعد الضغط على زر PDF قراءة مباشرة للكتاب تابع مستجدات الفايسبوك معالجة صور الاستشعار عن بعد...

Esri have set the bar with a prize on offer for the best use of Esri ArcGIS mapping technology. أكثر...

Thanks to the evolution of Esri CityEngine, 3D has become a GIS tool. أكثر...

GIS provides the ability to view and query the map based on the contents of the database. أكثر...

Maximizing the efficiency of your field workforce is key to a successful mobile strategy and with the introduction of Workforce for ArcGIS now you can plan, monitor and streamline field to office workflows using the ArcGIS platform. In the field Workforce is a new ArcGIS app that you can use...

The ArcGIS Content development team has (and still does!) put a lot of work into creating a comprehensive set of basemaps to help you as an ArcGIS user to show off your work, but, much as we would like to, we can’t cover everyone’s unique requirements. Until now, this effort was put into...

Hi so I am trying to download the entire dataset of OSM and placing into a MS SQL Database. Do anyone have any ideas of how to go about that? أكثر...

I have two Image services that I would like to combine into one layer; one has higher resolution imagery that draws only at a larger scale, and other has lower resolution imagery that draws at all scales. I'd like to combine them so that when you are zoomed in, the detailed imagery draws on top...

I want to reference a template in my layout, similar to XREF in AutoCAD.I work on linear project mostly and have to create hundreds of maps. I try to use DDP whenever possible, however it doesn't always lend itself to the needs at hand. So the idea is to setup a template for a project...

I just went from temporarily using a Windows 7 machine with 4GB of RAM and no video card as far as I know. I'm now using a mac with 16GB of ram, etc. Its a much more powerful machine. However, QGis's georeferencer program runs about 8 times faster on the windows machine. Does anyone know why...

Does anyone know how to use a .SHP in Trimble Sketch-Up? I have tried exporting to KML and CAD from QGIS, but the KML file doesn't read in Sketch-Up. أكثر...

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I am using a divIcon (an svg) for markers given to a point layer from a geoJSON for a map built with Leaflet/Mapbox. I can set the (initial) icon size with a css class, but if I try to set the divicon size using the options given by Leaflet, they seem to be ignored.In the case below, the icon...

I'm using GEOS API with Python/Django. I want to create a MultiPolygon from geoJSON. I'm running the following code into a python Shell: mp2 = GEOSGeometry('{"type":"MultiPolygon", "coordinates": [[[[-56.14914894104003, -33.189642368629116], [-56.14914894104003, -33.18583537264943]...

I have an LVIS waveform LiDAR file which looks like this: > head(lidar) V1 V2 V3 V4 V5 V6 V7 V8 V9[1,] 529437.4 4966194 0.000608380 0.000067737 0.000212176 0.000171945 0.000062599 0.000913602 0.001354659[2,]...