Systems and methods for generating visual representations of graphical data and digital document processing
DCFirst Claim
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1. A method of redrawing a visual display of graphical data whereby a current display of the graphical data is replaced by an updated display of the graphical data, comprising,receiving a request for an updated display of the graphical data;
- storing a reduced resolution bitmap representation of the graphical data distinct from the current display;
in response to the request, replacing the current display with a first approximate representation of the requested updated display, wherein said first approximate representation includes a scaled version of the stored distinct reduced resolution bitmap representation of said graphical data,generating a final updated display, andreplacing the approximate representation with the final updated display.
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Abstract
Systems and methods for generating visual representations of graphical data and digital document processing, including:
- A method of redrawing a visual display of graphical data whereby a current display is replaced by an updated display, comprising, in response to a redraw request, immediately replacing the current display with a first approximate representation of the updated display, generating a final updated display, and replacing the approximate representation with the final updated display.
- A method of generating variable visual representations of graphical data, comprising dividing said graphical data into a plurality of bitmap tiles of fixed, predetermined size, storing said tiles in an indexed array and assembling a required visual representation of said graphical data from a selected set of said tiles.
- A method of processing a digital document, said document comprising a plurality of graphical objects arranged on at least one page, comprising dividing said document into a plurality of zones and, for each zone, generating a list of objects contained within and overlapping said zone.
- Digital document processing systems adapted to implement the methods.
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Citations
31 Claims
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1. A method of redrawing a visual display of graphical data whereby a current display of the graphical data is replaced by an updated display of the graphical data, comprising,
receiving a request for an updated display of the graphical data; -
storing a reduced resolution bitmap representation of the graphical data distinct from the current display; in response to the request, replacing the current display with a first approximate representation of the requested updated display, wherein said first approximate representation includes a scaled version of the stored distinct reduced resolution bitmap representation of said graphical data, generating a final updated display, and replacing the approximate representation with the final updated display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A handheld device having a graphical interface capable of redrawing graphical data, comprising
a display memory for storing data representative of document currently being displayed on the handheld device, a second memory for storing a distinct reduced resolution bitmap representation of said document being displayed, and a module capable of detecting an instruction to generate an undated display of the document, the instruction including an alteration to an aspect of the document being displayed, and in response thereto replacing the current display of the document with a sealed version of the stored distinct reduced resolution bitmap representation of the document, generating a final updated display of the document, and replacing the scaled version of the distinct reduced resolution bitmap representation of the document with the final updated display of the document.
Specification