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November 1990
Appendix A NCSA HDF Vset Calls at a Glance
Overview
This appendix is a quick reference guide for using HDF Vset 2.0
calls.
Vgroup Calls
C FORTRAN
Vattach begins access to a vgroup. VFATCH
Vdetach terminates access to a vgroup. VFDTCH
Vgetclass returns the vgroup's class name. VFGCLS
Vgetid returns the id of the next vgroup in the file. VFGID
Vgetname returns the vgroup's name. VFGNAM
Vgetnext returns the id of the next entry of a vgroup. VFGNXT
Vinquire returns information about a vgroup VFFINQ
Vinsert inserts a vdata (or vgroup) into a vgroup. VFINSRT
Visvg tests if an element in a vgroup is a vgroup. VFISVG
Visvs tests if an element in a vgroup is a vdata. VFISVS
Vlone returns the references of all lone vgroups. VFLONE
Vsetclass assigns a class name to a vgroup. VFSCLS
Vsetname assigns a name to a vgroup. VFSNAM
Vdata Calls
C FORTRAN
VSattach begins access to a vdata. VSFATCH
VSdetach terminates access to a vdata. VSFDTCH
VSfdefine defines a new field for a vdata. VSFFDEF
VSfexist tests for the existence of field(s) in a vdata. VSFEX
VSgetclass returns the vdata's class name. VSFGCLS
VSgetid returns the id of the next vdata in the file. VSFGID
VSgetname returns the vdata's name. VSFGNAM
VSinquire returns information about a vdata. VSFINQ
VSlone returns the references of all lone vdatas. VSFLONE
VSread reads from a vdata. VSFREAD
VSseek seeks to an element position in a vdata. VSFSEEK
VSsetclass assigns a class name to a vdata. VSFSCLS
VSsetfields specifies the fields to be accessed in a vdata. VSFSFLD
VSsetinterlace sets the interlace in a vdata. VSFSINT
VSsetname assigns a name to a vdata. VSFSNAM
VSwrite writes to a vdata. VSFWRIT