Questions tagged [gdalutils]

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1answer
26 views

Meaning of error message for gdal_translate() and gdalbuildtvrt()? [closed]

I am working with gdal_translate() and gdal_buildvrt() from the gdalUtils package in R to merge several batches of a large number of raster files. This is my code gdalbuildvrt(gdalfile = l, # uses all ...
0
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3answers
205 views

Converting sinusoidal to WGS - MODIS TIFF file too big with R

I am interested by MODIS product. I've converted HDF file to TIFF with R and gdalUtils. I used a method similar to this : https://stackoverflow.com/questions/36772341/reading-hdf-files-into-r-and-...
1
vote
1answer
504 views

Unable to library "rgdal" and "gdalUtils" after upgrading to macOS big sur

I just upgraded my laptop to macOS big sur, but then I could not library "rgdal" and "gdalUtils". It threw me an error: Error: package or namespace load failed for ‘rgdal’ in dyn....
2
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0answers
37 views

How to use sf:gdal_utils with extent option (-te)?

I want to build a Gdal VRT dataset with several bands and cropped to a specific region. For that, I'm using sf::gdal_utils but somehow I can't get the option -te to work. It either complains about an ...
0
votes
0answers
185 views

Controlling number of gdal_translate cores when started via R's gdalUtils

I am processing satellite data in R and need to merge sat images of different UTM zones, which is where I ran into unexpected problems. I think I have solved them, but before moving to the production ...
1
vote
1answer
170 views

Combine several raster files with heterogeneous bands

I am attempting to (a) combine several non-overlapping pop density raster files, (b) create a velox object from this raster, (c) and then extract the mean population value for each overlapping polygon ...
0
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0answers
363 views

R: gdal_translate/gdalwarp/gdalUtils for georreferencing raster

I am currently working on georreferencing a 530 X 587 .bmp file called my_raster.bmp with gdal_translate and gdalwarp from gdalUtils package, which is equivalent to using GDAL with those commands. ...
4
votes
1answer
1k views

How to make 'gdalUtils' package in R to use GDAL installed in OSGeo's directory instead of QGIS's directory

I have GDAL installed through QGIS and OSGeo in the directories: C:\Program Files\QGIS 3.6\bin\gdalinfo.exe C:\OSGeo4W64\bin\gdalinfo.exe My gdalUtils package uses GDAL installed in QGIS and I want ...
0
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0answers
278 views

read error after mosaic_rasters in R

I am using mosaic_rasters from gdalUtils to combine different raster files. More specifically, I am using the 12 tiles that cover Southern Africa from the well-known Hansen et al. (2013) forest map (1....
-1
votes
1answer
340 views

gdal_translate in R changing the cell resolution of extracted subdataset from HDF

I'm trying to extract subdataset from MODIS LST HDFs using following code. library(gdalUtils) HDF_list = list.files(path, pattern= "\\.hdf$", all.files=FALSE, full.names=TRUE,recursive=FALSE) ...
1
vote
0answers
90 views

Issue with gdalUtils vs. raster in gridding data in R

I have irregularly spaced data (XYZ) and I'm trying to grid it in R using 2 different libraries, gdalUtils and raster. I'd prefer to use gdalUtils as I have more options, but the output looks off. ...
4
votes
2answers
1k views

Calculate buffer / multi-ring buffer of geometry with GDAL / gdalUtils

I wonder if there is any way to calculate a buffer on a spatial data set with basic command line GDAL or the R interface gdalUtils. To specify the Q: I have a lot of points around the globe. For ...
2
votes
0answers
704 views

Download HDF NDVI in R

I have a function to automate downloading NDVI data from https://e4ftl01.cr.usgs.gov/MOLT/ However, I'm hitting an error when downloading the .HDF files. They download fine but they seem to be ...
1
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0answers
462 views

Using gdalUtils to reproject hdf file in R

I am now working with GEFED dataset, which is a global wild file dataset.You can download one from FTP: fuoco.geog.umd.edu; Login name: fire; Password: burnt; The file is stored into gfed4/monthly/ ...
1
vote
1answer
833 views

Rasterizing lines with “gdal_rasterize” in R return no result and status 1

I am using gdal_rasterize in the gdalUtils package to convert lines in a Shapefile to a raster. library(gdalUtils) src <- "D:/Test/sample.shp" dst <- "D:/Test/raster.tif" raster <- ...
3
votes
0answers
587 views

ogr2ogr{gdalUtils} correct syntax to set Ground Control Points for vector georeferencing

I would like to know correct syntax of R {gdalUtils} package (version 2.0.1.7) to georeference Shapefiles using corner points as GCPs. (These Shapefiles have y=height and x=width information, without ...
2
votes
1answer
213 views

R gdalUtils::ogrinfo error or very slow

I am pulling WFS data into R and using gdalUtils::ogrinfo to look at the available layer names on a WFS server. Using the same url in QGIS, this is very fast and gives complete information. With ...
3
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2answers
4k views

Rasterizing polygons with the function "gdal_rasterize" in R

I'm using the function gdal_rasterize in R (package gdalUtils) to convert a polygon shapefile into a raster. Here is my code: r.test <- gdal_rasterize(src_datasource="df.shp", dst_filename="test....
4
votes
1answer
1k views

Working with MODIS in R

I am new to using MODIS data and was hoping to get some help starting out. I have been able to download the hdf file but viewing it in R has been a problem for me. What I have found so far, and ...