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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.
|Available in Run-Time Engine||Yes|
|Available in Real-Time Operating System||Yes|
|Settable when the VI is running||Yes|
|Loads the front panel into memory||No|
|Need to authenticate before use||No|
|Loads the block diagram into memory||No|
|Remote access allowed||Yes|
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.