@huukhanhnguyen/model / nodeMethods/surfaceValue

nodeMethods/surfaceValue#

area()#

area(surface): number

Untrimmed surface area: closed form on a recovered plane / sphere / cylinder / torus, else Gauss–Legendre of |Su × Sv|. A trimmed surface throws.

Parameters#

surface#

NurbsSurface

Returns#

number

curvature()#

curvature(surface, u, v): number

Mean curvature of the surface at (u, v). The kernel answers [gaussian, mean, k1, k2]; this namespace publishes the mean.

Parameters#

surface#

NurbsSurface

u#

number

v#

number

Returns#

number

isocurve()#

isocurve(surface, parameter, direction): CurveData

Isocurve at parameter (0..1) in the given direction ("u" | "v") → a curve.

Parameters#

surface#

NurbsSurface

parameter#

number

direction#

"u" | "v"

Returns#

CurveData

normalAt()#

normalAt(surface, u, v): Vector

Unit normal of the surface at (u, v).

Parameters#

surface#

NurbsSurface

u#

number

v#

number

Returns#

Vector

pointAt()#

pointAt(surface, u, v): Point

Point on the surface at parameters (u, v) ∈ [0,1]².

Parameters#

surface#

NurbsSurface

u#

number

v#

number

Returns#

Point