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Cleanup: spelling, correct comments

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This commit is contained in:
Campbell Barton
2020-09-11 14:45:42 +10:00
parent 08273adebb
commit d023c4104c
10 changed files with 27 additions and 24 deletions
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9
source/blender/editors/curve/editcurve.c
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@@ -3640,9 +3640,8 @@ static void subdividenurb(Object *obedit, View3D *v3d, int number_cuts)
* degree of the functions used to build the NURB. The
* expression
*
* degree = #knots - #controlpoints + 1 (J Walter piece)
* degree = #knots - #controlpoints (Blender
* implementation)
* `degree = knots - controlpoints + 1` (J Walter piece)
* `degree = knots - controlpoints` (Blender implementation)
* ( this is confusing.... what is true? Another concern
* is that the JW piece allows the curve to become
* explicitly 1st order derivative discontinuous, while
@@ -3651,12 +3650,12 @@ static void subdividenurb(Object *obedit, View3D *v3d, int number_cuts)
* is an invariant for a single NURB curve. Raising the degree
* of the NURB is done elsewhere; the degree is assumed
* constant during this operation. Degree is a property shared
* by all controlpoints in a curve (even though it is stored
* by all control-points in a curve (even though it is stored
* per control point - this can be misleading).
* Adding a knot is done by searching for the place in the
* knot vector where a certain knot value must be inserted, or
* by picking an appropriate knot value between two existing
* ones. The number of controlpoints that is influenced by the
* ones. The number of control-points that is influenced by the
* insertion depends on the order of the curve. A certain
* minimum number of knots is needed to form high-order
* curves, as can be seen from the equation above. In Blender,