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--- doc:user:geometry:user:contours [2015/01/07 16:50] – [Notes about Wires and contact] boman
+++ doc:user:geometry:user:contours [2016/03/30 15:23] (current) – external edit 127.0.0.1
@@ Line 27: / Line 27: @@
   * For rigid-deformable contact, a ''Wire'' must be defined "area to the left", and the Wire orientation if defined by the succession of its curves.
   * The function ''wire.reverse()'' inverts the order of definition of the wire, which also inverts the orientation of its normal.
-  * To understand how Metafor calculates the "average normal" of a ''Wire'', which is used in 3D contact, read ''[[surfaces]]''.
+  * To understand how Metafor computes an "average out-of-plane normal" of a ''Wire'', which is sometimes used in 3D contact, read ''[[surfaces]]''.