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Drawing information processing method and apparatus
| Details |
Inventors: Suzuki, Goro; Hamada, Nobuhiro;
Assignee: Hitachi, Ltd. (Tokyo, JP)
Primary Examiner: Harkcom; Gary V.
Assistant Examiner: Nguyen; Phu K.
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus
An apparatus and method for processing information of a drawing comprises steps of defining figure data representing figures, respectively, included in a drawing, preparing a plurality of regions called as field block memory regions for storing the figure data so that they can be selectively read out for edition of a drawing later on, and determining a usable range in each of the field block memories in accordance with the number of the figures included in the drawing. In a preferred mode, the method further includes steps of dividing the drawing into congruent rectangles called as buckets in a number determined in accordance with the number of the figures included in the drawing, allocating the abovementioned field block memory regions to the buckets, respectively, and storing the figure data in the memory region allocated to the bucket to which the associated figure belongs. |
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DETAILED DESCRIPTION It is a first object of the present invention to provide a method of processing information of a drawing in which the advantageous features of the field block method described above are made use of advantageously and in which the size of the individual field block memory regions can be determined as a function of the number of figures contained in a drawing to be processed for thereby allowing the figures overlapping with a designated window to be extracted with improved efficiency.
It is also envisaged with the invention to provide an apparatus for carrying out the method.
A second object of the present invention is to provide a drawing editing method in which advantageous features of the field block method and the bucket division method described above are made use of advantageously with shortcomings of both methods being mutually cancelled out and in which a drawing including a number of figures is divided into a plurality of buckets according to the bucket dividing method with figure data of the figures included in each bucket being managed according to the field block method, wherein the size of the individual field block memory regions used in conjunction with the field block method can be determined in dependence on the number of the figure included in the drawing to be processed.
It is also contemplated with the invention to provide an apparatus for carrying out this method.
According to a first aspect of the present invention, the first object mentioned above can be accomplished by providing a method of processing information of a drawing and an apparatus for carrying out the same, which method includes steps of defining figure data representative of a number of figures included in a drawing, respectively; preparing a plurality of regions referred to as the field block memories for storing the abovementioned figure data so that they can be selectively read out later on for edition of a drawing, and determining a permissible range for use of the individual field block memory in dependence on the number of the figures included in the drawings
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Graphic Cards 
