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AVEVA™ Plant SCADA

Size Propagation and Anchor Points

  • Last UpdatedJul 13, 2023
  • 2 minute read

An anchor point controls how changes in graphic size are propagated to embedded instances. By default, the anchor point of the graphic is the center point of all elements on the canvas.

This can be done graphically on the canvas, or by setting anchor position properties in the Properties Editor.

There are two types of anchors:

  • Use the AbsoluteAnchor property to specify its position as absolute coordinates.

  • Use the RelativeAnchor property to specify its position as coordinates relative to the graphic center.

When you embed a graphic, the embedded graphic inherits the anchor point in relation to its own center point.

You can also set the AnchorFixedTo property. When you make changes to the graphic that affects its size, the AnchorFixedTo property determines if the absolute position or relative position of the anchor point is recalculated. This property can have following values:

  • Absolute: The absolute anchor point position is unchanged, and the relative anchor point position is recalculated.

  • Relative: The absolute anchor point position is recalculated, and the relative anchor point position is unchanged.

    Note: When you change the AbsoluteAnchor property, the AnchorFixedTo property is set to the value Absolute. When you change the RelativeAnchor property, the AnchorFixedTo property is set to the value Relative.

You can change the position of the anchor point of the graphic. This affects the position of the embedded instances. The anchor points of the embedded instances, however, remain unchanged.

Note: You can change the anchor point of an embedded graphic. This moves the embedded graphic. It does not change the anchor point position in relation to the graphic. You can resize or rotate the embedded graphic. The anchor point moves in relation to the embedded graphic. You can also use the AnchorPoint property in the Properties Editor to change the position.

Embedding Graphics

Embedding Graphics within Graphics

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