Format

CURVE(alpha, iord, comp, id)

Description

Evaluates a Reference_ParamCurve element at a specified location.

Example

<Force_Vector_OneBody

    id              = "10801"

    type            = "ForceOnly"

    marker_id       = "10803023"

    body_id         = "10403"

    ref_marker_id   = "10803021"

    ref_body_id     = "10403"

    fx_expression   = "CURVE(2*time+10,0,1,101)"

    fy_expression   = "CURVE(2*time+10,0,2,101)"

    fz_expression   = "CURVE(2*time+10,0,3,101)"

    reverse_dir     = "FALSE">

</Force_Vector_OneBody>

Arguments

alpha

The independent parameter at which evaluation is desired.  In case of curves defined using a user-defined-subroutine, alpha must lie between u_start and u_end, specified in the Reference_ParamCurve definition.

iord

Determines the order of the derivative returned as follows:

comp

Determines the component returned as follows:

id

The identifier of the Reference_ParamCurve element.