X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=pdf2swf%2Fspline.cc;h=096122717469a500919fad58aa4ea0389ce4a6fe;hb=46cd627d647e910f814be6f746517f05ba6faca7;hp=37591be016a3f87f59cd7b2be6a87806a3ff7065;hpb=235732a3db9cfe3ac8228969ee1ad58410eab843;p=swftools.git

diff --git a/pdf2swf/spline.cc b/pdf2swf/spline.cc
index 37591be..0961227 100644
--- a/pdf2swf/spline.cc
+++ b/pdf2swf/spline.cc
@@ -3,9 +3,21 @@
 
    Part of the swftools package.
 
-   Copyright (c) 2001 Matthias Kramm <kramm@quiss.org> 
+   Copyright (c) 2001,2002,2003 Matthias Kramm <kramm@quiss.org> 
+ 
+   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 file is distributed under the GPL, see file COPYING for details */
+   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -336,6 +348,9 @@ void qsplines_getdrawpoints(qspline*s, int num, float**p, int*pnum, double acc)
     *p = positions;
 }
 
+
+#define TANGENTS
+
 int approximate2(struct cspline*s, struct qspline*q, double quality, double start, double end)
 {
     int num=0;
@@ -349,6 +364,23 @@ int approximate2(struct cspline*s, struct qspline*q, double quality, double star
     test.control = cspline_getpoint(s, (start+end)/2);
     test.end = cspline_getpoint(s, end);
     fixcp(&test);
+
+#ifdef TANGENTS
+    if(start< 0.5) {
+	test.control = cspline_getderivative(s, start);
+	test.control.x *= (end-start)/2;
+	test.control.y *= (end-start)/2;
+	test.control.x += test.start.x;
+	test.control.y += test.start.y;
+    } else {
+	test.control = cspline_getderivative(s, end);
+	test.control.x *= -(end-start)/2;
+	test.control.y *= -(end-start)/2;
+	test.control.x += test.end.x;
+	test.control.y += test.end.y;
+    }
+#endif
+
     for(t=0;t<probes;t++) {
 	double pos = 0.5/(probes*2)*(t*2+1);
 	qr1 = qspline_getpoint(&test, pos);