Scilab-Branch-5.3-GIT

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# geom3d

projection from 3D on 2D after a 3D plot

### Calling Sequence

[x,y]=geom3d(x1,y1,z1)

### Arguments

- x1,y1,z1
real vectors of the same size (points in 3D).

- x,y
real vectors of the same size as

`x1`

,`y1`

and`z1`

.

### Description

After having used a 3D plot function such as `plot3d`

,
`plot3d1`

or `param3d`

, `geom3d`

gives
the mapping between a point in 3D space `(x1(i),y1(i),z1(i))`

and the corresponding point `(x(i),y(i))`

in the projected 2D
plan. Then all the 2D graphics primitives working on `(x,y)`

can be used for superposition on the 3D plot.

### Examples

### Authors

J.Ph.C.

## Comments

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