Stacking Objects
Objects are "stacked" when created - each object is created "on top" of the previous object. This sometimes has no visual effect, but stacking order can matter in the case of images and filled or hatched objects.
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Note: Stacking is not related to layers, and changing an object's layer does not effect its position in the object stack. See See Snap Modes.
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This example contains three filled objects that were created in the indicated order:
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