FLDFget_node_data_veclen
FLDFset_node_data_veclen

Synopsis

get/set the number of subcomponents within one Node_Data component

INTEGER FLDFget_node_data_veclen (field, comp, veclen)
INTEGER field(OIDSIZ)
INTEGER comp
INTEGER veclen

INTEGER FLDFset_node_data_veclen (field, comp, veclen)
INTEGER field(OIDSIZ)
INTEGER comp
INTEGER veclen

Description

These routines set and get the veclen (number of subcomponents) within a single Node_Data Data_Array component. For example, an RGB image's veclen would be 3.

This veclen can be used to calculate the second index into the values[nvals][veclen] data array.

Note: veclens are often set as part of the FLDFset_node_data_comp routine rather than with FLDFset_node_data_veclen.

Parameters

field

The integer id of a field that contains a Node_Data subobject.

comp

An integer that specifies which component [0-n] of the Node_Data to use.

veclen

In FLDFget_node_data_veclen, veclen is the number of subcomponents that will be returned.

In FLDFset_node_data_veclen, veclen sets the number of subcomponents.

veclens are numbered from 1-n. Whether you actually need to set veclen if veclen=1 depends on how your functions are coded. AVS/Express modules and functions that manipulate Node_Data either assume veclen=1 or require that veclen be set.