class MDynSweptLine

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public members:

	MDynSweptLine ()
	~MDynSweptLine ()
MVector	vertex ( int vertexId, double t = 1.0 )
MVector	normal ( double x, double y, double z, double t = 1.0 )
MVector	tangent ( double t = 1.0 )
double	length ( double t = 1.0 )

Documentation

Description

A MDynSweptLine provides access to a curve segment defined as a line. It can only be accessed with the MFnDynSweptGeometryData class that is provided as an output from the geoConnector node.

The class provides parametric time evaluation for a curve. Time is in the range 0 to 1, where 1 represents the current frame and 0 represents the previous frame. In this way you can get interpolated values of a curve in motion.

Functions

MDynSweptLine:: MDynSweptLine ()

Description

The class constructor.

MDynSweptLine:: ~MDynSweptLine ()

Description

The class destructor.

MVector MDynSweptLine:: vertex ( int vertexId, double t )

Description

Return the vertex requested by id, at the parametric time value.

Arguments

• vertexId index 0 or 1
• t time value in the range 1.0 to 0.0
• t=1.0 is the current frame
• t=0.0 is the previous frame

Return Value

• the vertex postion

MVector MDynSweptLine:: normal ( double x, double y, double z, double t )

Description

Given a parametric time specified by 't' and a vector, returns a normalized vector perpendicular to the tangent, and rotated into the plane defined by the tangent and vector argument.

Arguments

• x x component of a vector
• y y component of a vector
• z z component of a vector
• t time value in the range 1.0 to 0.0
• t=1.0 is the current frame
• t=0.0 is the previous frame

Return Value

• a normalized vector

MVector MDynSweptLine:: tangent ( double t )

Description

Given a parametric time specified by 't', returns normalized tangent of the line.

Arguments

• t time value in the range 1.0 to 0.0
• t=1.0 is the current frame
• t=0.0 is the previous frame

Return Value

• a normalized vector

double MDynSweptLine:: length ( double t )

Description

Given a parametric time specified by 't', returns the total length of the line.

Arguments

• t time value in the range 1.0 to 0.0
• t=1.0 is the current frame
• t=0.0 is the previous frame

Return Value

• total line length

This class has no child classes.