Hello, I'm trying to open and work with a map I have downloaded from http://glovis.usgs.gov/, obtained from MODIS Terra satellite. This web only allows to download maps in .hdf format. I do not have ArcView, a GIS programme which opens these maps without any problem. I have been trying to do it using "R", however, I have not succeeded... First, I converted the map - which is in version 4 - to version 5 (with h4h5tools http://www.hdfgroup.org/h4toh5). I have tried to open it with satinGet (library satin) but I have obtained this error message: Error en queryname(nom.hdf5, what = "date") : objeto 'date.str' no encontrado
Finally I managed to open the file using the function hdf5load (library hdf5). With this function I have obtained two objects "HDF4_DIMGROUP" , "MOD44B_250m_GRID" but I don't know how can I represent spatially the data. I think I have a grid with the values of the variables but I don't know the reference of the coordinates (UTM long lat), the distance between the points of the grid, etc... In general, I don't know how to work with the information... I'm using Windows. Here is the link of the original map, in case it helps. http://dl.dropbox.com/u/22891835/MOD13Q1NDVI_2012Maig.hdf Thanks in advance for the help! Marc _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo