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const Model3DActivationCondition: object;
Specifies the activation conditions of a 3D annotation.
readonly PageBecomesVisible: "PV";
The annotation is activated as soon as any part of the page that contains the annotation becomes visible.
readonly PageReceivesFocus: "PO";
The annotation is activated as soon as the page that contains the annotation receives focus as the current page.
readonly UserAction: "XA";
The annotation is explicitly activated by a user action or script..