SYNOPSIS
#include <stdio>
#include <vistaio.h>
#include <vistaio.h>
int VistaIOReadEdges (file, attributes, edge_sets)
- FILE *file; VistaIOAttrList *attributes; VistaIOEdges (*edge_sets)[];
ARGUMENTS
- file
- Specifies the open stream from which the edge sets should be read.
- attributes
- Returns a list of attributes read from the stream.
- edge_sets
- Returns a vector of pointers to edge sets read.
DESCRIPTION
VistaIOReadEdges reads a Vista data file from an open stream, collects the top-level edge sets found, and returns the edge sets separately from the file's other contents.RETURN VALUES
VistaIOReadEdges returns the number of edge sets obtained, or 0 if an error is encountered. A vector of the edge sets is allocated and returned via edge_sets. Any other objects found in the file are returned as an attribute list via attributes.DIAGNOSTICS
Besides the following, any of the diagnostics produced by VistaIOReadFile may be generated.- ``No edges objects present in stream.''
- No edge sets were encountered in the specified stream.