Differences

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--- doc:user:geometry:user:contours [2015/01/07 16:45] – boman
+++ doc:user:geometry:user:contours [2015/01/26 10:26] – joris
@@ Line 21: / Line 21: @@
 | ''curve1'', ''curve2'', ''curve3'', ... | List of ''[[doc:user:geometry:user:courbes]]'' |
-===== Notes =====
+===== Notes about Wires and contact =====
-  * ''Wire'' can be replaced by ''MultiProjWire'' (derived class). In contact algorithms, ''MultiProjWire'' can handle multiple projections when the normal is not continuous.
+  * When a ''Wire'' is used as a contact tool, the succession of ''Curves'' should have a continuous normal.
-  * 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.
+  * {{:doc:user:ico-advanced.png?18|Advanced}} If it is not the case, ''MultiProjWire'' (same definition syntax) can handle multiple projections when the normal is not continuous.
+  * 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]]''.