This function retrieves the number and names of points defined in an HDF-EOS file. The point list is returned as a string with each point name separated by a comma.
Result = EOS_PT_INQPOINT( filename, pointlist [, LENGTH=variable] )
Returns number of points found or (-1) if failure.
HDF-EOS filename (string).
A named variable that will contain the point list (string) entries separated by commas.
Set this keyword to a named variable that will contain the length of the point list as a long integer.
In this example, we retrieve information about the points defined in an HDF-EOS file, HDFEOS.hdf:
npoint = EOS_PT_INQPOINT("HDFEOS.hdf", pointlist)