Posts Tagged Under: raster

How to Speed up QGIS (Rendering)

Hey there,

when working with very large vector or raster files then it can often take some time for the rendering process – and that’s usually annoying!
So, here are some tips for you, how to speed up your QGIS.

 

1. Enable multi-threaded rendering:

Modern CPUs are multi-core processors. QGIS uses by default

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Austria SRTM

Download SRTM for an entire country

Happy new year 2017!

It’s January 1st and I made the new years resolution to post more this year. 🙂 So here is a short tutorial on how to download SRTM (Shuttle Radar Topography Mission) 90m resolution data (3 arc seconds) for an entire country using the {raster} and {rgeos}

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Spatiotemporal tidy arrays for R

Hello,

today I’d like to draw your attention to an upcoming, interesting R package for handling spatial data.

Following the successful release of the sf package, which simplifies and optimizes many aspects of handling spatial (vector) data in R by implementing simple features as native R data (alongside with many R convenience

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Raster Info Tool based on Shiny R

Dear GIS enthusiasts!

As you already know, R is my favourite tool to work with spatial (raster) data. In some situations however, I am forced to move to a GIS desktop softwarer (à la QGIS) to get some basic information on my raster file. Since switching inbetween two softwares is annoying

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Benchmark: R vs. Python Rasterio vs. GDAL

Hey there!
Today I would like to do a small comparsion between three raster processing tools:
R, Python (rasterio) and GDAL.
When I started with GIS and raster processing, I didn’t really pay much attention to the performance of the scripts I wrote and tools I used. But now, working

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