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