VX

The VX function computes the X component of the relative translational velocity of marker I with respect to marker J resolved in the coordinate system of marker K. The time derivatives are taken in the marker L. Arguments J, K, and L are optional and default to 0, which refers to Global Frame.

Format

VX(I, J, K, L)

Arguments

I: The marker whose velocity is to be computed.
J: The marker with respect to which the velocity is to be computed. The default is Global Frame.
K: The relative velocity vector is resolved in the coordinate system of this marker. The default is Global Frame.
L: Time derivatives are taken in the coordinate system of this marker. The default is Global Frame.

Example

<Post_Request
     comment = "vel-expr"
     id      = "70000043"
     type    = "EXPRESSION"
     expr1   = "NULL"
     expr2   = "VX(30301010,30301011,30301011)"
     expr3   = "VY(30301010,30301011,30301011)"
     expr4   = "VZ(30301010,30301011,30301011)"
     expr5   = "NULL"
     expr6   = "WX(30301010,30301011,30301011)"
     expr7   = "WY(30301010,30301011,30301011)"
     expr8   = "WZ(30301010,30301011,30301011)"
/>