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>
*p = positions;
}
+
+#define TANGENTS
+
int approximate2(struct cspline*s, struct qspline*q, double quality, double start, double end)
{
int num=0;
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);