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One thing I forgot to mention: To connect a pair of patches along
an edge, the following should be visually "good enough:"
A: share all of the edge points (obvious, I know, but...),
B: The pairs of control points one hop away from the edge,
on both patches should lie on a line with the common knot.
That last sounded a bit like Greek (no offense, please if you are
Greek). How about an example:
Original Patch:
A, A1, A2, A'
B, B1, B2, B'
C, C1, C2, C'
D, D1, D2, D'
New Patch:
D, D1, D2, D'
E, E1, E2, E'
F, F1, F2, F'
G, G1, G2, G'
Constraints:
A: share an edge. (Done: D..D' is shared)
B: C-D-E is a straight line with D between C and E,
For all four triples:
C-D-E, C1-D1-E1, C2-D2-E2, and C'-D'-E'
You are free to make the Fs and Gs anywhere you like.
Note that C-D and D-E don't need to be the same length;
our eyes don't notice that second-order continuity.
-Scott
Phil Clute wrote:
>
> Thanks for your assistence.
>
> --
> ...coffee?...yes please! extra sugar,extra cream...Thank you.
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