Daniel@0: .TH LIBGVC 3
Daniel@0: .SH NAME
Daniel@0: \fBlibgvc\fR \- Graphviz context library
Daniel@0: .SH SYNOPSIS
Daniel@0: .ta .75i 1.5i 2.25i 3i 3.75i 4.5i 5.25i 6i
Daniel@0: .PP
Daniel@0: .nf
Daniel@0: \f5
Daniel@0: #include <graphviz/gvc.h>
Daniel@0: 
Daniel@0: /* set up a graphviz context */
Daniel@0: extern GVC_t *gvNEWcontext(char **info, char *user);
Daniel@0: extern char *gvUsername(void);
Daniel@0: 
Daniel@0: /*  set up a graphviz context \(hy alternative */
Daniel@0: /*     (wraps the above two functions using info built into libgvc) */
Daniel@0: extern GVC_t *gvContext(void);
Daniel@0: 
Daniel@0: /* parse command line args \(hy minimally argv[0] sets layout engine */
Daniel@0: extern int gvParseArgs(GVC_t *gvc, int argc, char **argv);
Daniel@0: extern graph_t *gvNextInputGraph(GVC_t *gvc);
Daniel@0: 
Daniel@0: /* Compute a layout using a specified engine */
Daniel@0: extern int gvLayout(GVC_t *gvc, graph_t *g, char *engine);
Daniel@0: 
Daniel@0: /* Compute a layout using layout engine from command line args */
Daniel@0: extern int gvLayoutJobs(GVC_t *gvc, graph_t *g);
Daniel@0: 
Daniel@0: /* Render layout into string attributes of the graph */
Daniel@0: extern void attach_attrs(graph_t *g);
Daniel@0: 
Daniel@0: /* Parse an html string */
Daniel@0: extern char *agstrdup_html(char *s);
Daniel@0: extern int aghtmlstr(char *s);
Daniel@0: 
Daniel@0: /* Render layout in a specified format to an open FILE */
Daniel@0: extern int gvRender(GVC_t *gvc, graph_t *g, char *format, FILE *out);
Daniel@0: 
Daniel@0: /* Render layout in a specified format to an open FILE */
Daniel@0: extern int gvRenderFilename(GVC_t *gvc, graph_t *g, char *format, char *filename);
Daniel@0: 
Daniel@0: /* Render layout according to \-T and \-o options found by gvParseArgs */
Daniel@0: extern int gvRenderJobs(GVC_t *gvc, graph_t *g);
Daniel@0: 
Daniel@0: /* Clean up layout data structures \(hy layouts are not nestable (yet) */
Daniel@0: extern int gvFreeLayout(GVC_t *gvc, graph_t *g);
Daniel@0: 
Daniel@0: /* Clean up graphviz context */
Daniel@0: extern int gvFreeContext(GVC_t *gvc);
Daniel@0: 
Daniel@0: \fP
Daniel@0: .fi
Daniel@0: .SH DESCRIPTION
Daniel@0: \fIlibgvc\fP provides a context for applications wishing to manipulate
Daniel@0: and render graphs.  It provides a command line parsing, common rendering code,
Daniel@0: and a plugin mechanism for renderers.
Daniel@0: 
Daniel@0: .SH SEE ALSO
Daniel@0: .BR dot (1),
Daniel@0: .BR neato (1),
Daniel@0: .BR libcdt (3)
Daniel@0: .BR libgraph (3)
Daniel@0: .br
Daniel@0: 
Daniel@0: .SH AUTHOR
Daniel@0: John Ellson (ellson@research.att.com), AT&T