Differences

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--- doc:user:geometry:user:courbes [2015/01/07 17:25] – [Open cubic spline] boman
+++ doc:user:geometry:user:courbes [2015/01/07 17:32] – [Full Circle] boman
@@ Line 10: / Line 10: @@
 {{ doc:user:doc-courbe.png?300 |}}
-===== Line: straight segment =====
+===== Line: Straight Segment =====
 {{ doc:user:doc-droite.png|}}
@@ Line 22: / Line 22: @@
 | ''pt1'',''pt2''     | the 2 ''Points'' used as vertices              |
-===== Arc =====
+===== Arc: Arc of Circle =====
 {{ doc:user:doc-arc.png|}}
@@ Line 39: / Line 39: @@
 {{ doc:user:doc-spline.png|}}
-==== "Open" cubic spline ====
+==== "Open" Cubic Spline ====
   spl = curveset.add( CubicSpline(number, [pt1, pt2, pt3, pt4]) )
@@ Line 59: / Line 59: @@
 ==== Spline-reconstruction based on a mesh ====
-{{  :doc:user:ico-advanced.png?40|Advanced}}
+{{:doc:user:ico-advanced.png?40 |Advanced}}
 It is possible to construct a spline based on the mesh of a line. This way, a smooth approximation of this mesh if obtained.
@@ Line 66: / Line 66: @@
 where ''obj'' is a meshed object.
-===== Full Circle =====
+===== Circle: Full Circle =====
 {{ doc:user:doc-cercle.png|}}
@@ Line 72: / Line 72: @@
 A circle is defined with its center and radius (this function is only defined in the $z=0$ plane)
-  circ2d = curset.add( Circle(number, pt1, radius) )
+  circ2d = curset.add( Circle(number, centre, R) )
-The orientation of the circle can be inverted (and so will its tangent and normal used for contact):
+with
+| ''number''  | user number (unique among Curves and $\ge 1$)  |
+| ''centre''  | centre ''Point''                               |
+| ''R''       | radius                                         |
+The orientation of the ''Circle'' can be inverted (and so will its tangent and normal used for contact):
   circ2d.reverse()
@@ Line 95: / Line 99: @@
 where
 |< 30em - >|
-| ''number'' | curve number |
+| ''number'' | user number (unique among Curves and $\ge 1$)  |
 | ''pt1'', ''pt2'' | ''[[doc:user:geometry:user:points]]'' used as supports |
 | ''degree'' | degré de la coube |
 | ''weight1'', ''weight2'' | weights|
 | ''knot1'', ''knot2'' | knot vector |
-| ''closed'' | Boolean to determine whether the Nurb is closed |
-| ''obj'' | GObject support of a topology (curve,wire,group) |
@@ Line 107: / Line 109: @@
 {{:doc:user:ico-advanced.png?40 |Advanced}}
-If a curve cannot be defined with the functions above, it can be programmed in [[doc:user:general:glossaire#python]] using the generic Curve called ''PythonCurve''.
+If a ''Curve'' is not implemented in Metafor, it can be programmed in [[doc:user:general:glossaire#python]] using the generic Curve called ''PythonCurve''.
+The method ''.push()'' is used to add points.
-The method ''.push()'' is used to add points, and it possesses four member functions that can be overloaded. The method named ''setEval(fct)'' is used to defined the evaluation [[doc:user:tutorials:tuto0#fonctions|python function]]. The methods named ''setTg'', ''setDTg'' and''setLen()'' respectively define the tangent, its derivative and the curvilinear abscissa. The function ''setEval(fct)'' is the only one required to mesh the curve, when the other three are used for contact.
+''PythonCurve'' possesses four member functions that can be overloaded. The method named ''setEval(fct)'' is used to defined the evaluation [[doc:user:tutorials:tuto0#fonctions|python function]]. The methods named ''setTg'', ''setDTg'' and''setLen()'' respectively define the tangent, its derivative and the curvilinear abscissa. The function ''setEval(fct)'' is the only one required to mesh the curve, when the other three are used for contact.
 __Example:__