Client apparatus, server unit, the server-based computing system and program

Client apparatus, server unit, the server-based computing system and program

  • CN 101,159,752 B
  • Filed: 08/31/2007
  • Issued: 03/09/2016
  • Est. Priority Date: 08/31/2006
  • Status: Active Grant
First Claim
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1. the client apparatus for thin client system, it sends service request by network to server unit, wherein, described server unit generates the image information be presented on virtual screen, described image information comprises the display data corresponding with described service request and coordinate data, it is characterized in thatDescribed client apparatus, comprising:

  • Extract unit out, it extracts the image information corresponding with the appointed area of the subregion of virtual screen out from the image information generated by described server unit;

    Display unit, its be divided into usual viewing area and often viewing area, in the viewing area often in the region be set of client computer picture, often the image information extracted out by described extraction unit is shown, in the usual viewing area outside viewing area often, show the region corresponding with the scrolling position information of image information;

    Input unit, it comprises the indicating device of the point on the described client computer picture of instruction;

    Converter unit, the coordinate of its point indicated by described indicating device is transformed to the coordinate data of the correspondence on virtual screen, in coordinate transform processing, carries out in the x-direction and the z-direction respectively according to following transformation for mula;

    Coordinate transforming={ click coordinate on client computer picture-(coordinate of the point of the upper left of the viewing area often on the coordinate+client computer picture of the point of the upper left of the client computer viewing area on virtual screen) } ÷

    shows the coordinate of the point of the upper left of the appointed area on multiplying power+virtual screen;

    AndCoordinate transmitting element, is sent to described server unit by the coordinate data that described converter unit converts.

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