<kochanek-bartels-curve> ( points m0 mn tension bias continuity -- polynomials-sequence )

Vocabulary

math.splines

Inputs

points	points on the spline
m0	start tangent
mn	end tangent
tension	a number
bias	a number
continuity	a number

Outputs

polynomials-sequence

sequence of sequence of polynomials

Word description

Creates a sequence of cubic hermite curves (each a sequence of polynomials) passing through the given points, generating tangents with the given tuning parameters.

Definition

USING: arrays kernel math.splines.private sequences ;

IN: math.splines

:: <kochanek-bartels-curve>
    ( points m0 mn tension bias continuity -- polynomials-sequence )
    tension bias continuity kochanek-bartels-coefficients
    :> ( s1 d1 s2 d2 ) points m0 mn
    [ s1 s2 kochanek-bartels-tangents ]
    [ d1 d2 kochanek-bartels-tangents ] 3bi
    :> ( in out ) points in out [ 3array ] 3map
    (cubic-hermite-spline) ;