SignalArrow

Visualizing an arrow with dynamically varying size in frame_a based on input signal

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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]):
 

model Visualizers.SignalArrow

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).

Parameters (2)

animation

Value: true

Type: Boolean

Description: = true, if animation shall be enabled

quantity

Value: Types.VectorQuantity.RelativePosition

Type: VectorQuantity

Description: Kind of physical quantity represented by the vector

Inputs (4)

r_tail

Default Value: {0, 0, 0}

Type: Position[3] (m)

Description: Vector from frame_a to arrow tail, resolved in frame_a

color

Default Value: {0, 0, 255}

Type: Color

Description: Color of arrow

specularCoefficient

Default Value: world.defaultSpecularCoefficient

Type: SpecularCoefficient

Description: Reflection of ambient light (= 0: light is completely absorbed)

headAtOrigin

Default Value: false

Type: Boolean

Description: = true, if the vector is pointing towards the origin of vector frame

Connectors (2)

frame_a

Type: Frame_a

Description: Coordinate system in which visualization data is resolved

r_head

Type: RealInput[3]

Description: Vector resolved in frame_a

Components (2)

world

Type: World

arrow

Type: Arrow

Used in Components (1)

FreeMotionScalarInit

Modelica.Mechanics.MultiBody.Joints

Free motion joint with scalar initialization and state selection (6 degrees-of-freedom, 12 potential states)