Zoom Factor Property

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Short Name: ZoomFactor

Requires: Base Development System

Class: Picture Properties

To Use: Create a property.

Factor by which to scale the image in a picture control or indicator.

For example, to decrease the size of the image to 50% of its original size, wire a value of 0.5 to this property. To increase the size of the image to 200% of its original size, wire a value of 2 to this property.

The value you wire to this property must be greater than or equal to 0.

If you change the zoom factor and LabVIEW draws part of the image outside the draw area of the picture control or indicator, you can use the Horizontal Scrollbar Visible and Vertical Scrollbar Visible properties to display scroll bars for the picture control or indicator.



The following table lists the characteristics of this property.

Data type
Available in Run-Time EngineYes
Available in Real-Time Operating SystemYes
Settable when the VI is runningYes
Loads the front panel into memoryNo
Need to authenticate before useNo
Loads the block diagram into memoryNo
Remote access allowedYes


Refer to the Zoom Attribute VI in the labview\examples\Graphics and Sound\2D Picture Control directory for an example of using the Zoom Factor property.


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