This function returns the total number of HDF AN annotations that are of a given type and that are attached to the object identified by its HDF tag and its HDF reference number.
Syntax
Result = HDF_AN_NUMANN(Annotation_id, Annotation_type, Object_tag, Object_ref)
Return Value
Returns the number of annotations or FAIL (-1) otherwise.
Arguments
Annotation_id
HDF AN interface identifier returned by HDF_AN_START.
Annotation_type
Type of the annotation. The following table lists the valid values of the parameter Annotation_type in the left column, and the corresponding values of the parameter Annotation_tag in the right column.
|
Annotation Type |
HDF Annotation Tag
|
|
0 = Data Label (AN_DATA_LABEL)
|
104 (DFTAG_DIL)
|
|
1 = Data Description (AN_DATA_DESC)
|
105 (DFTAG_DIA)
|
|
2 = File Label (AN_FILE_LABEL)
|
100 (DFTAG_FID)
|
|
3 = File Description (AN_FILE_DESC)
|
101 (DFTAG_FD) |
Object_tag
HDF tag of the object.
Object_ref
HDF reference number of the object. Since this routine is implemented only to obtain the total number of data annotations and not file annotations, the valid values of Annotation_type are:
- 0 = data label
- 1 = data description
To obtain the total number of file annotations or all data annotations, use HDF_AN_FILEINFO.
Keywords
None
Version History