summaryrefslogtreecommitdiff
path: root/app/cornu/spiroentrypoints.c
diff options
context:
space:
mode:
authorJörg Frings-Fürst <debian@jff-webhosting.net>2018-03-19 19:55:58 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2018-03-19 19:55:58 +0100
commitd1a8285f818eb7e5c3d6a05709ea21a808490b8c (patch)
tree326578f0505cbed07cfe60de530022822dc237ac /app/cornu/spiroentrypoints.c
parent16e9630b79f0a7a90c6cedb6781175bb8b337dc1 (diff)
New upstream version 5.1.0upstream/5.1.0
Diffstat (limited to 'app/cornu/spiroentrypoints.c')
-rw-r--r--app/cornu/spiroentrypoints.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/app/cornu/spiroentrypoints.c b/app/cornu/spiroentrypoints.c
new file mode 100644
index 0000000..0128115
--- /dev/null
+++ b/app/cornu/spiroentrypoints.c
@@ -0,0 +1,60 @@
+/*
+libspiro - conversion between spiro control points and bezier's
+Copyright (C) 2007 Raph Levien
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.
+
+*/
+/* Interface routines to Raph's spiro package. */
+
+#include "spiroentrypoints.h"
+
+void
+SpiroCPsToBezier(spiro_cp *spiros,int n,int isclosed,bezctx *bc)
+{
+ spiro_seg *s;
+
+ if ( n<1 )
+return;
+ if ( !isclosed ) {
+ char oldty_start = spiros[0].ty;
+ char oldty_end = spiros[n-1].ty;
+ spiros[0].ty = '{';
+ spiros[n-1].ty = '}';
+ s = run_spiro(spiros,n);
+ spiros[n-1].ty = oldty_end;
+ spiros[0].ty = oldty_start;
+ } else
+ s = run_spiro(spiros,n);
+ spiro_to_bpath(s,n,bc);
+ free_spiro(s);
+}
+
+void
+TaggedSpiroCPsToBezier(spiro_cp *spiros,bezctx *bc)
+{
+ spiro_seg *s;
+ int n;
+
+ for ( n=0; spiros[n].ty!='z' && spiros[n].ty!='}'; ++n );
+ if ( spiros[n].ty == '}' ) ++n;
+
+ if ( n<1 )
+return;
+ s = run_spiro(spiros,n);
+ spiro_to_bpath(s,n,bc);
+ free_spiro(s);
+}