Systems and method for annotating pages in a three-dimensional electronic document
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United States of America Patent
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Dec 12, 2006
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app pub date -
Dec 19, 2003
filing date -
Dec 19, 2003
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Abstract
A system and method for annotating three-dimensional electronic documents. A user specifies, on a two-dimensional screen, a portion of a page of a three-dimensional document as a specific page area to be annotated. The annotation is displayed to the user with the transparent polygon technique, the vertex coloring technique and/or the texture coloring technique. These display techniques support highlighting annotations, free-form annotations, and text annotations.
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