Origin Property

Short Name: Origin

Requires: Base Development System

Class: Picture Properties

To Use: Create a property.

Horizontal and vertical coordinates of the point in the picture you want to display in the upper left corner of the picture control or indicator.

Increasing the horizontal coordinate shifts the picture to the left, and increasing the vertical coordinate shifts the picture to the top.

You can use this property to display a different portion of a picture in the picture control or indicator. For example, if you wire 100 and 100 to this property, LabVIEW draws the upper left corner of the picture 100 pixels above and 100 pixels to the left of the upper left corner of the control or indicator.

If you change the origin and LabVIEW draws part of the picture 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. As you move the scroll bars of the picture control or indicator, the origin of the picture in the control or indicator changes, and the coordinates returned by this property change.

Elements

Example

Remarks

The following table lists the characteristics of this property.

Data type
Permissions	Read/Write
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

Example

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

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