cmd/tools/nop
cmd/tools/sccmap
cmd/tools/tred
+cmd/tools/tred2
cmd/tools/unflatten
contrib/diffimg/diffimg
contrib/prune/prune
noinst_HEADERS = colortbl.h convert.h mmio.h matrix_market.h \
graph_generator.h gml2gv.h gmlparse.h
if ENABLE_STATIC
-bin_PROGRAMS = gc gvcolor gxl2gv acyclic nop ccomps sccmap tred \
+bin_PROGRAMS = gc gvcolor gxl2gv acyclic nop ccomps sccmap tred tred2\
unflatten gvpack gvpack_static dijkstra bcomps mm2gv gvgen gml2gv gv2gml graphml2gv
else
-bin_PROGRAMS = gc gvcolor gxl2gv acyclic nop ccomps sccmap tred \
+bin_PROGRAMS = gc gvcolor gxl2gv acyclic nop ccomps sccmap tred tred2\
unflatten gvpack dijkstra bcomps mm2gv gvgen gml2gv gv2gml graphml2gv
endif
ccomps.1.pdf: $(srcdir)/ccomps.1
- @GROFF@ -Tps -man $(srcdir)/ccomps.1 | @PS2PDF@ - - >ccomps.1.pdf
+tred2_SOURCES = tred2.c
+
+tred2_LDADD = \
+ $(top_builddir)/lib/ingraphs/libingraphs_C.la \
+ $(top_builddir)/lib/cgraph/libcgraph.la \
+ $(top_builddir)/lib/gvc/libgvc.la
+
tred_SOURCES = tred.c
tred_LDADD = \
--- /dev/null
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/*************************************************************************
+ * Copyright (c) 2011 AT&T Intellectual Property
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors: See CVS logs. Details at http://www.graphviz.org/
+ *************************************************************************/
+
+
+/*
+ * Written by Stephen North
+ * Updated by Emden Gansner
+ */
+
+/*
+ * reads a sequence of graphs on stdin, and writes their
+ * transitive reduction on stdout
+ */
+
+#include "config.h"
+
+#include "gvc.h"
+#include "cgraph.h"
+#include <stdlib.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include "ingraphs.h"
+
+#include <getopt.h>
+
+char **Files;
+char *CmdName;
+
+#ifdef WIN32 //*dependencies
+ #pragma comment( lib, "cgraph.lib" )
+ #pragma comment( lib, "ingraphs.lib" )
+ #pragma comment( lib, "gvc.lib" )
+#endif
+
+static char *useString = "Usage: %s [-?] <files>\n\
+ -? - print usage\n\
+If no files are specified, stdin is used\n";
+
+static void usage(int v)
+{
+ printf(useString, CmdName);
+ exit(v);
+}
+
+static void init(int argc, char *argv[])
+{
+ int c;
+
+ CmdName = argv[0];
+ opterr = 0;
+ while ((c = getopt(argc, argv, ":")) != -1) {
+ switch (c) {
+ case '?':
+ if (optopt == '?')
+ usage(0);
+ else
+ fprintf(stderr, "%s: option -%c unrecognized - ignored\n",
+ CmdName, optopt);
+ break;
+ }
+ }
+ argv += optind;
+ argc -= optind;
+
+ if (argc)
+ Files = argv;
+}
+
+static Agraph_t *gread(FILE * fp)
+{
+ return agread(fp, (Agdisc_t *) 0);
+}
+
+int main(int argc, char **argv)
+{
+ Agraph_t *g;
+ ingraph_state ig;
+
+ init(argc, argv);
+ newIngraph(&ig, Files, gread);
+
+ while ((g = nextGraph(&ig)) != 0) {
+ if (agisdirected(g))
+ gvToolTred(g);
+ agclose(g);
+ }
+
+ return 0;
+}
+
char state;
unsigned char gui_state; /* Node state for GUI ops */
boolean clustnode;
+ int mark; /* for tools like tred */
#ifndef DOT_ONLY
unsigned char pinned;
node_t *set;
/* fast graph */
- char node_type, mark, onstack;
+ char node_type, onstack;
char ranktype, weight_class;
node_t *next, *prev;
elist in, out, flat_out, flat_in, other;
libgvc_C_la_SOURCES = gvrender.c gvlayout.c gvdevice.c gvloadimage.c \
gvcontext.c gvjobs.c gvevent.c gvplugin.c gvconfig.c \
- gvtextlayout.c gvusershape.c gvc.c
+ gvtool_tred.c gvtextlayout.c gvusershape.c gvc.c
# gvbuffstderr.c
libgvc_C_la_LIBADD = \
* @param gvc Graphviz context to add library to
* @param lib library to add
*/
-
extern void gvAddLibrary(GVC_t *gvc, gvplugin_library_t *lib);
+/** Perform a Transitive Reduction on a graph
+ * @param g graph to be transformed.
+ */
+extern void gvToolTred(graph_t *g);
+
#undef extern
#ifdef __cplusplus
--- /dev/null
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/*************************************************************************
+ * Copyright (c) 2011 AT&T Intellectual Property
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors: See CVS logs. Details at http://www.graphviz.org/
+ *************************************************************************/
+
+
+/*
+ * Written by Stephen North
+ * Updated by Emden Gansner
+ * Adapted to gvToolTred(g) by John Ellson
+ */
+
+/*
+ * performs an inplace transitive reduction on a graph
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include "cgraph.h"
+#include "gvc.h"
+
+#define agrootof(n) ((n)->root)
+
+static int dfs(Agnode_t * n, Agedge_t * link, int warn)
+{
+ Agedge_t *e;
+ Agedge_t *f;
+ Agraph_t *g = agrootof(n);
+
+ ND_mark(n) = 1;
+
+ for (e = agfstin(g, n); e; e = f) {
+ f = agnxtin(g, e);
+ if (e == link)
+ continue;
+ if (ND_mark(agtail(e)))
+ agdelete(g, e);
+ }
+
+ for (e = agfstout(g, n); e; e = agnxtout(g, e)) {
+ if (ND_mark(aghead(e))) {
+ if (!warn) {
+ warn++;
+ fprintf(stderr,
+ "warning: %s has cycle(s), transitive reduction not unique\n",
+ agnameof(g));
+ fprintf(stderr, "cycle involves edge %s -> %s\n",
+ agnameof(agtail(e)), agnameof(aghead(e)));
+ }
+ } else
+ warn = dfs(aghead(e), AGOUT2IN(e), warn);
+ }
+
+ ND_mark(n) = 0;
+ return warn;
+}
+
+void gvToolTred(Agraph_t * g)
+{
+ Agnode_t *n;
+ int warn = 0;
+
+ if (agisdirected(g)) {
+ for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
+ warn = dfs(n, NULL, warn);
+ }
+ } else {
+ fprintf(stderr, "warning: %s is not a directed graph, not attempting tred\n",
+ agnameof(g));
+ }
+}
fclose(f);
return (! err);
}
+
+bool tred(Agraph_t *g)
+{
+ int err = 0;
+
+ if (!g)
+ return false;
+ gvToolTred(g); // FIXME - gvToolTred should rteturn errors code
+ return (! err);
+}
+
extern bool write(Agraph_t *g, const char *filename);
extern bool write(Agraph_t *g, FILE *f);
+/*** Graph transformation tools */
+extern bool tred(Agraph_t *g);
+
%}
projects / graphviz / commitdiff