VisClass: 6.5 Visible Layers and 32-Bit Graphics: Managing 32-Bit Geometry

Because visible objects and composites maintain their 16-bit bounds in a large document, they can still use the 16-bit geometry manager. Layer objects, however, can not use the geometry manager. All geometry management on the layer level (child positioning, resizing, etc.) must be done by the layer object itself in conjunction with its child composites.

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