## Bezier patches from network of Bezier curves

### Bezier patches from network of Bezier curves

I have a collection of Bezier curves that forms a network of patches, I'd
like to find out the technique(s) used to generate the patches from those
Bezier curves network.

+--+ represents a Bezier curve

+
|
+     also represents a Bezier curve

The following network (attempts with ASCII art) shows a 6 patches
network, 3 columns by 2 rows

+--+--+--+
|    |     |    |
+--+--+--+
|    |     |    |
+--+--+--+

Having tried out various modelling/animation software, they all seems
happy to allow a user to just move the end points and the software uses some
form of blending/blending-fuction to find the "inner/interior" four vertices
of each Bezier patch base of the 4 boundary curve and if necessary, the
neighbouring patches. It is this blending/interpolation algorithm/technique
I am keen to find out.

Cheers
--
Nicholas Yue
http://www.geocities.com/nicholas_yue

### Bezier patches from network of Bezier curves

> It is this blending/interpolation algorithm/technique
> I am keen to find out.

Have a look in your computer graphics book for "hermite"
curves. Basicaly they're just Beziers in disguise using
end points and tangent vectors instead of four control
points.

--
<\___/>
/ O O \
\_____/  FTB.

I have a collection of Bezier curves that forms a network of patches, I'd
like to find out the technique(s) used to generate the patches from those
Bezier curves network.

+--+ represents a Bezier curve

+
|
+     also represents a Bezier curve

The following network (attempts with ASCII art) shows a 6 patches
network, 3 columns by 2 rows

+--+--+--+
|    |     |    |
+--+--+--+
|    |     |    |
+--+--+--+

Having tried out various modelling/animation software, they all seems
happy to allow a user to just move the end points and the software uses some
form of blending/blending-fuction to find the "inner/interior" four vertices
of each Bezier patch base of the 4 boundary curve and if necessary, the
neighbouring patches. It is this blending/interpolation algorithm/technique
I am keen to find out.

Cheers
--
Nicholas Yue
http://www.geocities.com/nicholas_yue