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| bio | website | press.underdiverwaterman.com |
|---|---|---|
| location | Arusha, Tanzania | |
| age | ||
| visits | member for | 1 year, 6 months |
| seen | 11 hours ago | |
| stats | profile views | 181 |
Wildlife survey specialist with interest in GIS and statistics, based in Arusha, Tanzania.
Work mostly with QGIS, R ... getting away from using ArcGIS and Excel!
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May 13 |
comment |
How to download the entire ASTER GDEMv2 dataset? This doesn't seem to work for areas outside the USA, unless there's an option I'm missing? |
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May 3 |
comment |
Filter contour lines in QGIS Walking the dog is right up there with Atwood's "Rubber duck problem solving" perhaps. |
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May 3 |
comment |
Find closest point from origin in QGIS and display measure line in composer Thanks for the sketch. Do you mean that you want to have a line automatically drawn between point and area, or is it enough to just calculate the nearest distances to each polygon and display that data on the composer? |
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May 2 |
comment |
Find closest point from origin in QGIS and display measure line in composer What do you mean by 'constraint area'? Could you share a sketch of the output you're looking for? |
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Apr 28 |
comment |
Plotting large numbers of objects on a chart using R and WKT format What issues are you facing? spRbind would probably do the job for you with a SpatialLinesDataFrame instead of rbind. However, if you're working with millions of objects, you probably are better off running the export job within the database or command line, then plotting in R. |
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Apr 22 |
answered | How to make digitization more detailed afterwards with QGIS? |
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Apr 22 |
revised |
Plotting large numbers of objects on a chart using R and WKT format Added plot |
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Apr 21 |
comment |
How to make digitization more detailed afterwards with QGIS? Do you have topological editing turned on? |
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Apr 20 |
revised |
geokettle wiki excerpt added 233 characters in body |
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Apr 20 |
revised |
geokettle wiki description added 593 characters in body |
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Apr 20 |
wiki | created geokettle description |
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Apr 20 |
wiki | created geokettle excerpt |
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Apr 20 |
suggested | suggested edit on geokettle tag wiki |
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Apr 20 |
suggested | suggested edit on geokettle tag wiki excerpt |
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Apr 20 |
revised |
Geokettle transformation for FileGDB to SHP Added tag for Geokettle |
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Apr 19 |
awarded | Popular Question |
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Apr 19 |
comment |
Plotting large numbers of objects on a chart using R and WKT format 1. What difficulties are you having with this code as you have written it here? Can't test without the equivalent database. 2. This will be very slow for large numbers of objects if you add (z+1) to the vector each time - set the size initially with things <- vector("list", nrow(objects_1)) |
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Apr 19 |
comment |
Plotting large numbers of objects on a chart using R and WKT format OK - I've never had a chance to try that with a dB connection, didn't realise it worked one at a time (and that's why you were iterating over nrows in your question). |
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Apr 19 |
answered | Plotting large numbers of objects on a chart using R and WKT format |
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Apr 19 |
comment |
Plotting large numbers of objects on a chart using R and WKT format What about readWKT from the rgeos package? Won't that read your ShapeWKT data? |
