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-rw-r--r--doc/api.texi7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/api.texi b/doc/api.texi
index 9a36bc4..a237d97 100644
--- a/doc/api.texi
+++ b/doc/api.texi
@@ -2095,6 +2095,13 @@ Draw an elliptical arc spanning the angle range [@var{angle-start},
@var{ry} (set both to the same value for a circular arc.)
@end deffn
+@deffn {Procedure} arc-to c1 c2 radius
+Draw a circular arc with radius @var{radius} that is tangential to the
+line segment formed by the current pen position and @var{c1}, as well
+as the line segment formed by @var{c1} and @var{c2}. The result is a
+smooth corner.
+@end deffn
+
Included are some helpful procedures for generating common types of
paths: