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Questions - rgdal

Using R to obtain slope raster from DEM GRID raster

After some extensive googling, I wasn't able to find my answer (first time I couldn't surmount the issue by looking at others questions/answers). I am new to asking questions, so forgive any missteps....
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WTaylor

r

arcgis

r-raster

rgdal

Votes: 0

Answers: 1

Latest Answer

The only red flag I see is that you say "it is already projected in the correct coordinate system". Projecting raster data degrades the quality. As cell values get smoothed, the slopes will ...
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Robert Hijmans

How to extract random coordinates from some place keeping its own geometric form?

I'd like to get random coordinates into the red bounded area: The code below is what I've tried so far but I'm not sure if this does what it is supposed to do since this is a mix of a few codes and I...
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Davi Américo

r

spatial

sf

sp

rgdal

Votes: 0

Answers: 1

Latest Answer

Please find one possible approach using the sf library Code library(sf) # Select 'Ceara' Ceara <- estados %>% filter(., sigla == "CE") # Generate the random points in 'Ceara' set....
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lovalery

read NASADEM .slope file into R and change format to .tif file

I downloaded some tiles using NASA EARTHDATA for the NASADEM Slope and Curvation Global 1 arc second V001 data set. When I extracted the files, I saw the filenames followed the pattern: "TileLoca...
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November2Juliet

r

raster

tiff

gdal

rgdal

Votes: 0

Answers: 1

Latest Answer

Regrettably, NASA does not provide header files so you need to create them yourself. To help with that, I added a function makeVRT to the terra version 1.5-9. That is currently the development version...
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Robert Hijmans

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