Original 5.40

1 files changed, 51 insertions, 0 deletions

diff --git a/utils/spline.h b/utils/spline.h
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+/*
+ * Copyright (c) 1987, 1988, 1989 Stanford University
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Stanford not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  Stanford makes no representations about
+ * the suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
+ * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* This code came with the InterViews distribution, and was translated
+   from C++ to C by Matthieu Devin <devin@lucid.com> some time in 1992.
+ */
+
+#ifndef _SPLINE_H_
+#define _SPLINE_H_
+
+typedef struct _spline
+{
+  /* input */
+  unsigned int	n_controls;
+  double*	control_x;
+  double*	control_y;
+
+  /* output */
+  unsigned int		n_points;
+  XPoint*	points;
+  unsigned int		allocated_points;
+} spline;
+
+spline* make_spline (unsigned int size);
+void compute_spline (spline* s);
+void compute_closed_spline (spline* s);
+void just_fill_spline (spline* s);
+void append_spline_points (spline* s1, spline* s2);
+void spline_bounding_box (spline* s, XRectangle* rectangle_out);
+void free_spline(spline *s);
+
+#endif /* _SPLINE_H_ */