NURBS3D

Non-Uniform Rational Spline Base curve definition. NURBS3D has the following child elements:

Child Namespace Type Use Cardinality Choice Description
ControlPtList ocx ocx:ControlPtList_T req. [1, 1] False List of control points (X,Y,Z) and their optional weights. The array length N=degree+1. A minimum of 2 control points is necessary to define a curve.
KnotVector ocx ocx:KnotVector_T req. [1, 1] False The knot-vector is a list of size m=+n-1 knots where p is the polynomial basis degree and n is the number of control points. The knot vector consists of a non-decreasing sequence of values. Knot multiplicities can be included. A knot multiplicity means that a knot value can be repeated up to p+1 times.
NURBSproperties ocx ocx:NURBSProperties_T req. [1, 1] False Properties of the basis functions in surface V direction.

NURBS3D has the following attributes:

Attribute Namespace Type Use Default Fixed Description
is2D ocx xs:boolean opt. false Set to True if the Curve3D is given in 2D space.
GUIDRef ocx ocx:guid opt. A globally unique ID referring to an entity in the authoring application. The sending application creates and holds the GUID. Used to establish a unique reference to an entity persistent between applications.
name ocx xs:string opt. An optional descriptive or display name.
id ocx xs:ID req. An identifier for an element unique within the scope of the XML file. Each id must be unique within a document. The attribute uses the standard XML 1.0 ID type as defined in the XML Schema specification. This attribute is required in many OCX XML elements and an application should generate them automatically.
OCX Version:
3.0.0
Location URL:
https://3docx.org/fileadmin//ocx_schema//V300//OCX_Schema.xsd
Namespace:
https://3docx.org/fileadmin//ocx_schema//V300//OCX_Schema.xsd
Author:
wikibot
Date:
Dec 06 2024 17:10:11
Status:
PublishState.PUBLIC
Publisher version:
1.0.0