VTS Graphic Editor: Movement

Applies to:  Arc, Bitmap, Border, Chord, Ellipse, Line, Pie, Pipe, Polygon, Rectangle, Text

Control Levels Available:  None,   Advanced

Defaults to:  None

The default control level is "None".  In this case, "None" means that no movement factor has been applied. This is equivalent to saying that the object does not move.

Movement can be controlled by either a tag or an expression, as selected using the button shown in the figure below.

Note in the menu that you have a choice of Horizontal Movement and Vertical Movement.  Defining both will result in diagonal motion if the values for both are changing at the same time.

You have two options for limiting the motion of an object. First, you can override the tag's scaling by setting a Minimum Value and a Maximum Value.

Setting a Minimum Value of 0 and a Maximum of 100 is equivalent to using the Tag Scaling.  

Leaving the Minimum Value at 0 and adjusting the Maximum Value to 200 would be equivalent to scaling to 50%. Setting the Maximum Value to 50 would be equivalent to scaling by double the distance.

You also have the option of setting a maximum number of pixels over which the object is permitted to move.  A setting of 0 means that the object cannot move.

Note that the maximum number of pixels is relative to the scaling set with the Minimum and Maximum Values.  For example, if the maximum number of pixels is 10, the Minimum Value is set to 0 and the Maximum Value is set to 100, then the object can potentially move over 10 pixels.  If the Maximum Value is changed to 50, thus doubling the scaling, then the object will move over 20 pixels.