NURBSSurfaceEvaluation

class ansys.geometry.core.shapes.surfaces.nurbs.NURBSSurfaceEvaluation(nurbs_surface: NURBSSurface, parameter: ansys.geometry.core.shapes.parameterization.ParamUV)

Bases: ansys.geometry.core.shapes.surfaces.surface_evaluation.SurfaceEvaluation

Provides evaluation of a NURBS surface at a given parameter.

Parameters:

nurbs_surface: ~ansys.geometry.core.shapes.surfaces.nurbs.NURBSSurface

NURBS surface to evaluate.

parameter: Real

Parameter to evaluate the NURBS surface at.

Overview

Properties

surface	Surface being evaluated.
parameter	Parameter the evaluation is based upon.
position	Position of the evaluation.
normal	Normal to the surface.
u_derivative	First derivative with respect to the U parameter.
v_derivative	First derivative with respect to the V parameter.
uu_derivative	Second derivative with respect to the U parameter.
uv_derivative	The second derivative with respect to the U and V parameters.
vv_derivative	The second derivative with respect to v.
min_curvature	Minimum curvature.
min_curvature_direction	Minimum curvature direction.
max_curvature	Maximum curvature.
max_curvature_direction	Maximum curvature direction.

Import detail

from ansys.geometry.core.shapes.surfaces.nurbs import NURBSSurfaceEvaluation

Property detail

property NURBSSurfaceEvaluation.surface: NURBSSurface

Surface being evaluated.

property NURBSSurfaceEvaluation.parameter: ansys.geometry.core.shapes.parameterization.ParamUV

Parameter the evaluation is based upon.

property NURBSSurfaceEvaluation.position: ansys.geometry.core.math.Point3D

Position of the evaluation.

Returns:

Point3D

Point on the surface at this evaluation.

property NURBSSurfaceEvaluation.normal: ansys.geometry.core.math.vector.UnitVector3D

Normal to the surface.

Returns:

UnitVector3D

Normal to the surface at this evaluation.

property NURBSSurfaceEvaluation.u_derivative: ansys.geometry.core.math.vector.Vector3D

First derivative with respect to the U parameter.

Returns:

Vector3D

First derivative with respect to the U parameter at this evaluation.

property NURBSSurfaceEvaluation.v_derivative: ansys.geometry.core.math.vector.Vector3D

First derivative with respect to the V parameter.

Returns:

Vector3D

First derivative with respect to the V parameter at this evaluation.

property NURBSSurfaceEvaluation.uu_derivative: ansys.geometry.core.math.vector.Vector3D

Second derivative with respect to the U parameter.

Returns:

Vector3D

Second derivative with respect to the U parameter at this evaluation.

property NURBSSurfaceEvaluation.uv_derivative: ansys.geometry.core.math.vector.Vector3D

The second derivative with respect to the U and V parameters.

Returns:

Vector3D

Second derivative with respect to the U and V parameters at this evaluation.

property NURBSSurfaceEvaluation.vv_derivative: ansys.geometry.core.math.vector.Vector3D

The second derivative with respect to v.

Returns:

Vector3D

Second derivative with respect to the V parameter at this evaluation.

property NURBSSurfaceEvaluation.min_curvature: ansys.geometry.core.typing.Real

Abstractmethod:

Minimum curvature.

property NURBSSurfaceEvaluation.min_curvature_direction: ansys.geometry.core.math.vector.UnitVector3D

Abstractmethod:

Minimum curvature direction.

property NURBSSurfaceEvaluation.max_curvature: ansys.geometry.core.typing.Real

Abstractmethod:

Maximum curvature.

property NURBSSurfaceEvaluation.max_curvature_direction: ansys.geometry.core.math.vector.UnitVector3D

Abstractmethod:

Maximum curvature direction.