Bspline
A bspline curve or surface is used for curved freeform geometry defined by controls points (sometimes called poles).
- BSplineCurve -- a curve defined by control points (which are not on the curve)
- InterpolationCurve -- a curve defined by passthrough points, with "good" visual properties
- BSplineSurfaceXYZ -- a surface with XYZ
- BsplineSurfaceXYZW -- a surface with weighted (rational) XYZ coordinates
- KnotVector -- vector of breakpoints in bspline definitions.
Classes
| Name | Description | |
|---|---|---|
| AkimaCurve3d | Interpolating curve. | |
| AkimaCurve3dOptions | fitPoints and end condition data for AkimaCurve3d | |
| Bezier1dNd | Shared implementation details for derived bezier curve classes | |
| BezierCurve3d | 3d Bezier curve class. | |
| BezierCurve3dH | 3d curve with homogeneous weights. | |
| BezierCurveBase | Base class for CurvePrimitive (necessarily 3D) with _polygon. | |
| BSpline1dNd | Bspline knots and poles for 1d-to-Nd. | |
| BSpline2dNd | Bspline knots and poles for 2d-to-Nd. | |
| BSplineCurve3d | A BSplineCurve3d is a bspline curve whose poles are Point3d. | |
| BSplineCurve3dBase | Base class for BSplineCurve3d and BSplineCurve3dH. | |
| BSplineCurveOps | A class with static methods for creating B-spline curves. | |
| BSplineSurface3d | BSplineSurface3d is a parametric surface in xyz space. | |
| BSplineSurface3dH | BSpline Surface in xyzw homogeneous space | |
| InterpolationCurve3d | Interpolating curve. | |
| InterpolationCurve3dOptions | fitPoints and end condition data for InterpolationCurve3d | |
| KnotVector | Array of non-decreasing numbers acting as a knot array for bsplines. |
Enumerations
| Name | Description | |
|---|---|---|
| BSplineWrapMode | Enumeration of the possible ways of converting a "periodic" knot vector to an open knot vector. | |
| UVSelect | UVSelect is an integer indicating uDirection (0) or vDirection (1) in a bspline surface parameterization. | |
| WeightStyle | Enumeration of how weights are carried |
Interfaces
| Name | Description | |
|---|---|---|
| AkimaCurve3dProps | fitPoints AkimaCurve3d | |
| BSplineSurface3dQuery | Interface for methods supported by both regular (xyz) and weighted (xyzw) bspline surfaces. | |
| InterpolationCurve3dProps | fitPoints and end condition data for InterpolationCurve3d | |
| PackedPointGrid | interface for points returned from getPointGrid, with annotation of physical and weighting dimensions. |
Namespaces
| Name | Description | |
|---|---|---|
| BSplineCurveOps | Namespace for collecting curve fit API |
Last Updated: 09 November, 2021