APPARATUS AND METHOD OF VIEWING ELECTRONIC DOCUMENTS

摘要

A method of generating an e-book document comprises the steps of representing some or all of a page of an electronic document as a sequence graphic textures derived from the page of the electronic document, wherein the sequence comprises successively smaller graphic textures, arranging the them to form a first mip-map suitable for use by 3D graphics hardware, and outputting an e-book document comprising said first mip-map representing some or all of said page of said document; meanwhile a corresponding method of reading an e-book document, in which some or all of a page of the document is represented by a mip-map, comprises the steps of accessing at least a portion of the mip-map comprising the sequence of graphic textures, constructing a surface in a 3D virtual space comprising one or more polygons, applying to the polygon surface a graphic texture derived from the accessed part of the mip-map that is responsive to the scaling of the polygon surface with respect to a graphical display of an e-book reader, and displaying the textured polygon surface on the graphical display of the e-book reader, thereby displaying some or all of the page of the document.