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Thank you to GEB reader ‘jonahtornado’ for letting us know that Google appears to have got the altitude wrong in the 3D for the Italian city of Crotone. If looked at in Google Earth with the ‘Water Surface’ turned on it appears to be underwater. It is actually not uncommon for 3D imagery to have...

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Please help me to understand IF statement in the following code. I got it from some samples. citybuffer = arcpy.GetParameterAsText(1) if citybuffer == '#' or not citybuffer: citybuffer = "C:\\test.gdb\\citybuffer" أكثر...

I am utilizing maps provided through the ArcGIS rest service when i plot information in Python, but have some problems understanding the different options I have when I request I map. The documentation is really really sparse. First, here is my code: map = Basemap(epsg=3395...

I am trying to build a Windows Forum Application that will uses to download and display some layer in the Geoserver. But every time that I run the app I will see an error(image). Can anybody help me please? Regards. using System; using System.Collections.Generic; using...

In our project we captured GPS-tracks from subjects in the timeframe of a year. In total we captured around 13000000 GPS-points this way. The captured data comes from an electric powered car and is accompanied by some Metadata (consumption, average loading time, speed, gear shift, brake state...

I wish to make an update using CASE, on a subset of a table. This subset is based on a spatial query. It looks like : update t1 set f1 = CASE WHEN... WHEN... END FROM (select * from t2 join t1 on st_intersects(t2.geom, t1.geom) WHERE *a_field_from_t2* = *a_value*) as foo ...

I don't know if this is possible in QGIS but I want to try to re-create this floorplan using shapefiles, it needs to be the exact same as the measurements shown in the image. If possible I need to do this whole process on QGIS as I do not have access to programs like illustrator which would...

I was wondering, if its possible to edit lines and polylines in qgis, in similiar way as autocad commands "extend", "trim" and "fillet"? About how the commands for in Autocad, very shortly: The EXTEND command allows you to extend an entity to touch another entity in a drawing. The TRIM...

The first video tutorial in the Business GIS for Enterpreneurs series focuses on Enfironmental Scanning and Opportunity Analysis using the example of a hypothetical fitness center in a Midwestern town in the USA. It illustrates how entrepreneurs can use Business GIS tools to perform these tasks...

Bonjour à tous, Dabord désolé car ce n'est pas le bon préfixe, il n'y a pas l'option autres :o: Je souhaite récupérer des fichiers d'archives des dessin d'armatures, coffrages qui sont sous l'extension *.rol, il me semble que ces fichiers sont créés à partir du logiciel IsaCad mais c'est...

I'm interested in finding the midpoint on a linestring using OGR and python. This can be a line with more segments. Could I use the ST_LINE_INTERPOLATE_POINT in python using the ExecuteSQL() method? If so, could someone perhaps help me formulate the correct SQL query? Or is there an alternative...

I have encountered a question, and I need your help to overcome that. The question is as follows: Does satellite imagery have a unique azimuth for each of its spectral bands? Is it right to say that if a sensor has 8 spectral bands, then it may have 8 different azimuth angle? Thank you...

I render my SVG from Database Layer (PostGIS). I suppose there is basically 1-to-1 match between the ways (polygons) in DB and SVG path elements. Is it possible to attach the way id to the SVG XML so that some kind of postprocessing is possible? أكثر...

I have two shape files. Buffer of a line feature of a river Parcels nearer the river But i need to find out the area of the parcels only touching the river line. I used the intersect tool and it gave me only the parcel numbers. أكثر...

How do I input the arc tan in the field calculator given the values of the fields to get the desired answer, I compare the answer of the manually computed arc tan value and the Atan Spatial Analyst tools. the answer that I get from the Atan Spatial Analyst tool is different from the answer that...

Salam Aidil Fitri :) .. Dah lama juga SukaGIS tak bersiaran. Mood nak menulis kureng sikit semenjak dua menjak ni. Idea nak menulis pun kureng gak. Hari ni dapat pula satu idea nak kongsi … pasal Geoprocessing Environment. Kalau anda tengok dalam menu ArcMap, ada satu menu dipanggil...

Originally posted on gvSIG Batovi: El d أكثر...

Bonjour à tous, Dabord désolé car ce n'est pas le bon préfixe, il n'y a pas l'option autres :o: Je souhaite récupérer des fichiers d'archives des dessin d'armatures, coffrages qui sont sous l'extension *.rol, il me semble que ces fichiers sont créés à partir du logiciel IsaCad mais c'est...

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