[R-sig-Geo] Read HDF files
janverbesselt at gmail.com
Fri Sep 2 15:50:09 CEST 2011
Please have a look at the example I provided, it should work for your HDF4 files. The MODIS data I am dealing with comes in HDF4 format. I did not need to build a specific GDAL version that supports HDF4 format.
I am using GDAL available via http://www.kyngchaos.com/software/frameworks for Mac OSx, and the latest version of rgdal for R2.13.1. In which environment are your working?
On 02/09/2011, at 3:36 PM, Arnaud Mosnier [via R-sig-geo] wrote:
> Hi Paul,
> Thanks for your answer ... in fact I googled for that before asking this R
> Oceancolor HDF files are in HDF4 format and provided as two HDF4 format, in
> SIM (Standard Mapped Image) or BIN (binned).
> I first tried to use the BIN format without success. I use the gdal version
> provided with FWtools and gdal_info correctly identify the file as a HDF4
> format, but it refuses to convert it to a geotiff.
> I finally succeeded using the SIM format.
> But, now I am interested in doing that directly into R.
> The version of gdal called by the library rgdal do not include support for
> HDF4 format.
> So my question is now ... can someone give me a step by step instruction
> that I can use to build a GDAL version including the support for HDF4 format
> (as it is the case in the version compiled with FWtools) ?
> 2011/9/2 Paul Hiemstra <[hidden email]>
> > On 09/01/2011 05:20 PM, Arnaud Mosnier wrote:
> > > Hi Geo UseRs,
> > >
> > > I am searching a way to read and manage HDF files in R (like files
> > provided
> > > by the ocean color web site, http://oceancolor.gsfc.nasa.gov/).
> > >
> > > Thanks
> > >
> > > Arnaud
> > >
> > > [[alternative HTML version deleted]]
> > >
> > > _______________________________________________
> > > R-sig-Geo mailing list
> > > [hidden email]
> > > https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> > The answer can be found by googling for "R read hdf". That leads to the
> > HDF5 package or building GDAL with HDF support. Alternatively, find a
> > (command)-line tool which can translate HDF5 to geotiff or netCDF (e.g.
> > gdal_translate or ) and then use readGDAL or the ncdf package.
> > Paul
> > --
> > Paul Hiemstra, Ph.D.
> > Global Climate Division
> > Royal Netherlands Meteorological Institute (KNMI)
> > Wilhelminalaan 10 | 3732 GK | De Bilt | Kamer B 3.39
> > P.O. Box 201 | 3730 AE | De Bilt
> > tel: +31 30 2206 494
> > http://intamap.geo.uu.nl/~paul
> > http://nl.linkedin.com/pub/paul-hiemstra/20/30b/770
> [[alternative HTML version deleted]]
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