GetNTFVolume()
Summary
Returns information on an Ordnance Survey NTF file (volume).
Syntax
ntf_info = GetNTFInfo(string file_name)
| Argument |
Contents |
| file_name |
The path and file name of the NTF file |
Returns
An array of information as follows:
| Element |
Type |
Contents |
| 1 |
String |
Version number |
| 2 |
String |
A code that can be compared among files to indicate whether the volumes are from the same series; a match in the code between files strongly indicates (but does not guarantee) that they are from the same series |
| 3 |
Integer |
The volume sequence number of this file in its series |
| 4 |
Boolean |
"True" if the volume contains the entire dataset (in which case the volume sequence number is 1), or "False" if this is one volume from a multiple-volume series |
Example
ntf_volinfo = GetNTFVolume("c:\datafile.ntf")
// ntf_volinfo = {"2.00, Level 4", "ABCDEFG", 2, "False"}
Error Codes
| Error Type |
Meaning |
| Error |
The file is not a valid NTF file |
| NotFound |
The specified file does not exist |
See Also
| Function |
Summary |
| ImportNTF() |
Imports features from one or more Ordnance Survey NTF volumes into a geographic file |
| GetNTFInfo() |
Provides information on a dataset of Ordnance Survey NTF volumes |