OdGeOffsetCurve3d Class

Class Hierarchy

Syntax

C++

class OdGeOffsetCurve3d : public OdGeCurve3d;

File

GeOffsetCurve3d.h

Description

This class represents 3D curves that are exact offsets of other curves.

Remarks

Every GeOffsetCurve3d contains a pointer to the curve from which it is offset. Modifying the base curve modifies the offset curve. Modifying the offset curve does not modify the base curve. setInterval() for an offset curve result create a curve that is an offset of the specified interval in the base curve.

This curve may be self-intersecting, even if the base curve is not. To create offset curves that are not self-intersecting, use OdGeCurve3d::getTrimmedOffset().

The base curve must be planar, and a normal to the plane must be specified. Positive offset distances at any point on the base curve are defined as 90° counterclockwise from the tangent of the base curve at that point.

An offset curve with a 0.0 offset distance is exact replica of the base curve. An offset curve with a non-zero 0.0 offset distance has a continuity of one less than that of the base curve. To insure that the offset curve is a valid curve, the base curve must have a continuity of at least 1.

Corresponding C++ library: TD_Ge

Group

OdGe Classes

Public Methods

	Name	Description
	OdGeOffsetCurve3d	This is the overview for the OdGeOffsetCurve3d constructor overload.

OdGeOffsetCurve3d Methods

	Name	Description
	curve	Returns a pointer to the base curve.
	normal	Returns the normal to the base curve as a unit vector.
	offsetDistance	Returns the offset distance of this curve.
	paramDirection	Returns true if and only if this curve has the same parameter direction as the base curve.
	setCurve	Sets the base curve for this OdGeOffsetCurve3d object.
	setNormal	Sets the normal to the plane of the base curve.
	setOffsetDistance	Sets the offset distance for this curve.
	transformation	Returns the concatenation of the transformation matrices applied to this curve with transformBy().

OdGeOffsetCurve3d Operators

	Name	Description
	=	Assignment operator for the OdGeOffsetCurve3d object.

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