[Reference Position (Edge Position)]

This item can be changed if necessary. The reference position is automatically set at the same time the measurement region is specified. This item can be used to change the reference position to any desired position.

Note

After changing the reference position to any desired position, re-registering the measurement region will automatically change it back to the default position.

In the "Item tab" area, tap [Reference position].
In the "Image display" area, the current reference position is displayed with a cross-shaped cursor.
Change the reference position.
In the "Reference coordinate" area, tap [...] for each item and specify values for your desired reference coordinates (the coordinates of the reference position).
How to input a value: User's Manual, "Inputting a Value"
The cross-shaped cursor in the "Image display" area will move to the specified coordinate position.
Using arrow buttons to change the reference position:
In the "Reference coordinate" area, tap one of the arrow buttons.
In the "Image display" area, the cross-shaped cursor will move one pixel per tap.
In the "Reference coordinate" area, the reference coordinate values (X, Y) will also change as the cross-shaped cursor moves.
Note
Tips for position adjustment
- You can easily specify the coordinates if you first input approximate coordinate values and then adjust them by moving the cross-shaped cursor in the "Image display" area. The Zoom function is useful for fine adjustment.
  For the Zoom function, see User's Manual, "Using Zoom Function".
When the measurement parameter has been changed, tap [Measure ref.].
The edge position is re-calculated using the modified parameter and reflected in the "Reference coordinate" area.

Note

Since the reference position can be changed, it is useful for measuring distance from a specific position.

Confirm the reference position of the currently displayed image, and then change it to an appropriate position. A positional check can be performed by calculating the difference between the reference position and the measured position using an expression.
After changing the reference position to any desired position, changing the measurement region will automatically change it back to the default position.