<< Click to Display Table of Contents >> Navigation: MechDesigner Reference & User Interface > 2.2 MechanismEditor > FunctionBlocks > Kinematic FunctionBlocks > Add Measurement FB 
Use a Measurement FB to measure a Dimension. You can measure the: •Length of a Line, CADLine •Radius of a Circle, arc •Distance between two Points** •Distance between a Line* and a Point** •Distance between two parallel Lines* •Angle between two Lines* •Angle between three Points** * Line, CADLine, Xaxis, Yaxis. ** Point, startPoint, endPoint, centerPoint, and/or MotionPoint. The motionvalues at the outputconnector(s) of a Measurement FB. The measurement is usually between sketchelements that are in different Parts. Thus, the dimension changes throughout the machinecycle. The motionvalues at the outputconnector(s)§ of a Measurement FB: •are a function of the MasterMachineAngle •continually change •include the first and second motionderivative of the dimension. § There are two(2) outputconnectors when you measure the distance between two Points*  see more details below Connect wires from the outputconnectors of a Measurement FB You can connect wires from a Measurement FB to a: •Graph FB or Stats FB  to analyze the dimension and motionvalues •MotionDimension FB or  to use the output as the motionvalues for a MotionPart. •MotionPath FB  to use the output as the motionvalues for a MotionPoint. •Motion FB  to use the motionvalues as the Xaxis of a Motion design in MotionDesigner. •Math FB  to use the motionvalues in an equation, or to change the units of the motionvalues. Messages: Messages in the FeedbackArea may be: “1 Mechanism dependencies detected”. This means, that the motion of a kinematicchain is a function of (dependent on) the motion (measurement) of a different kinematicchain. It is usually called MotionDependency. 
Measurement FB between two Points 
The Measurement FB and Dimension are now in the graphicsarea. 

Note:

* Line, CADLine, Xaxis, Yaxis ** Point, startPoint, endPoint, centerPoint, MotionPoint. 

Image 
SketchElements 
Measurement Dimension 
Line or CADLine. 
Length: Click the Line* 

Circle or Arc. 
Radius: Click the circle or arc. 

Point  Line 
Perpendicular Distance between the Line and Point. 1.Click the Point** 2.Click the Line* 

Point  Point 
Linear Distance and Angle between two Points. •Click a Point** •Click a Point** A Measurement FB between two Points** has two outputconnectors: •Top outputconnector: distance between two Points, and first and second motionderivatives •Bottom outputconnector: angle between two Points, and first and second motionderivatives 
Measurement: Angle between Three Points  Internal Angle and External Angle. ** Point, startPoint, endPoint, centerPoint 

Image 
SketchElements 
Measurement Dimension 
Three Points 1.Click 'Apex' Point** 2.Click Point** 3.Click Point** 
Internal Angle The angle is from to in a CounterClockwise direction. 

Three Points 1.Click 'Apex' Point** 2.Click Point** 3.Click Point** 
External Angle The angle is from to in a CounterClockwise direction. 
After you select the two Lines, and before you click in the graphicsarea to place the Measurement Dimension and FB, you can display one of eight angles. Move your mousepointer around the apex of the two lines: CASE 1: Mouse Pointer moves Counterclockwise : 4 angles < 180° : the Acute, Obtuse, Supplementary and Vertical angles CASE 2: MousePoint moves Clockwise : 4 angles > 180° : the reflex angles  or the angles that are external to those angles of CASE 1. 
Video: Eight Measurement Angles between two Lines: Add Angle Dimensions between two Lines
