Model SignalArrow defines an arrow that is
dynamically visualized at the location where its frame_a is
attached. The vector from the tail to the head of the arrow,
resolved in frame_a, is defined via the signal vector of the
connector r_head
(Real
r_head[3]
):
The quantity
parameter defines what the vector
represents, allowing tools to scale e.g. forces and torques
differently in a consistent way. For the default value
RelativePosition the obvious scaling is 1 and
the relative position is shown as is.
The tail of the arrow is defined with input r_tail
with respect to frame_a (vector from the origin of frame_a to the
arrow tail).