Dialog: Point Properties

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Dialog: Point Properties

Point Properties

Use the Point-Properties dialog to:

•Show the Velocity Vectors and Acceleration Vectors of a Point*.

•Find the exact X and Y coordinates of a Point* in the XY-Plane of the Mechanism-Editor.

•Find the exact x, y and z coordinates of a Point* relative to the xy-axes of a Part.

•Edit the x, y (and z) positions of a Point*, in a Part - ONLY if the position of the Point* does not have ANY dimensions or constraints.

* Point, start-Point, end-Point, center-Point.

How to open the Point Properties dialog

MD-Double-click-Point

To open the Point Properties dialog

1.Double-click the Point in the graphic-area

OR

1.See How to Open a dialog  

The Point Properties dialog is now open.

Point Properties dialog

Point-Properties dialog

Point-Properties dialog

tog_minus Kinematic Vectors 
MD-Dialog-PointProperties-KinVect

Velocity and Acceleration Vector check-boxes

❑Show Velocity Vector - evaluated at each machine step with closed-form algorithms

❑Show Acceleration Vector - evaluated at each machine step with closed-form algorithms

❑Show Numerical Vectors - calculated numerically with a simple difference algorithm.

NOTE: Usually, do not show the Numerical Vectors. If you do show them, you will need to jog the MMA back and forward by a small angle so that we can calculate the values correctly. If you see there is a difference between the numerical vectors and the Kinematic Vectors, please email psmotion!

If you show Velocity and Acceleration vectors, or both:

•The length of the vectors are proportional to the Point's instantaneous Velocity and Acceleration.

•The direction of the Vectors are in the direction of the Velocity and Acceleration

•The magnitude of the vectors are at the Vectors' arrowhead.

See Edit menu >Application-Settings > Graphics > Display Colors to edit the color of the vectors.

Scope

Calculate and display the Velocity and Acceleration Vectors relative to the:

•Local xyz axes - Mechanism Axes (default)

•Global XYZ axes - MODEL AXES.

Velocity Vector Options

Display Velocity Vectors as:

•Magnitude (default) of the Velocity, or

•X component only of the Velocity, or

•Y component only of the Velocity, or

•z Component only of the Velocity

Use only the X, Y, and Z Velocity component to compare a X, Y, or Z Velocity component of Point in different mechanisms.

For example, to compare the X (or Y or Z) velocity of a Point on a Transfer-Tool with the velocity of a conveyor.
MD-Point-Velocity-Acceleration Vecotors

Scale and Length of Vectors

Edit the length of the vectors, use the buttons in the Feedback-Area:

MD-FA-VectorButtons

 

 

V Click Red-14-1Red-14-2 to increase / decrease the length of the Velocity Vector

A Click Red-14-1Red-14-2 to increase / decrease the length of the Acceleration Vector

See: App-Settings > Graphics tab > Display colors | Vel/Acc Vectors
tog_minus Mechanism Coordinates (read-only) 
MD-Dialog-PointProperties-MechCoords

The Point coordinates (X, Y, Z ) relative to the Origin of the Mechanism-Plane and Base-Part.

The X, Y, Z dimensions are read-only.
tog_minus Point Coordinates: Read-Write 

Point with Constraints

MD-Dialog-PointProperties-PointCoords-Contraints

If the Point has one or more constraint (for example, Vertical Constraint, or a Dimension), then you cannot edit its x, y coordinates with this dialog.

You can edit its z coordinates.

Point without Constraints

MD-Dialog-PointProperties-PointCoords-Lock

If the Point does not have a constraint (or dimension) in the Part, then it is possible to edit the position of the Point in this dialog

Lock and Edit Point's Position:

The Point coordinates (x , y, z) are relative to the Part's axes:

◉Lock and Edit here

Edit the x, y and/or z coordinate of the Point

Note:

If you click Lock and Edit here check-box, you cannot edit the position of the Point with the Part-Editor.

 
MD-Dialog-PointProperties-PointCoords-PrtEd

◉Edit in Part-Editor

You can edit the position of the Point with the Part-Editor.