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BaseCurve

The base curve defining an extruded surface when it is swept. BaseCurve has the following child elements:

Child Namespace Type Use Cardinality Choice Description
Circle3D ocx ocx:Circle3D_T req. [1, ∞] False A circle in 3D space.
CircumArc3D ocx ocx:CircumArc3D_T req. [1, ∞] False 3D Line/Arc representation. Represents a semicircle uniquely defined by three points in 3D space given by the start position, intermediate position and the end position..
CircumCircle3D ocx ocx:CircumCircle3D_T req. [1, ∞] False Definition of a circle in 3D space by a circum-circle of 3 points.
CompositeCurve3D ocx ocx:CompositeCurve3D_T req. [1, ∞] False The concept of a composite curve composed of a collection of Line3D, CircumArc3D and/or NURBS segments. Curves are sorted end to end and have C0 continuity across each segment in the CompositeCurve3D definition.
Ellipse3D ocx ocx:Ellipse3D_T req. [1, ∞] False An ellipse in 3D space.
Line3D ocx ocx:Line3D_T req. [1, ∞] False A straight line defined by two points.
NURBS3D ocx ocx:NURBS3D_T req. [1, ∞] False Non-Uniform Rational Spline Base curve definition.
PolyLine3D ocx ocx:PolyLine3D_T req. [1, ∞] False A list of 3D points defining a sequence of linear segments. Repeat the first position at the end of the last line segment to form a closed contour.

BaseCurve 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
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The published OCX Schema

  1. Latest schema version
  2. Schema version 3.1.0 published on 2025.07.01
  3. Schema version 3.0.0 published on 2024.07.01 (Deprecated)
  4. Schema version 2.8.6 published on 2019.06.21 (Deprecated)