US 6,321,131 B1Granted

Editor and editing method in CAD system

AssigneeFujitsu Limited

InventorsTouru Kumada, Eiichi Konno, Isamu Maejima, Kazunori Kumagai, Akihiko Suehiro

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Abstract

An editor in a CAD system, which assigns different command functions to each of a plurality of buttons, enables commands for editing processing such as “movement”, “deletion”, and copying” to be issued by the corresponding buttons, and adds one polygon and another polygon by a first button or subtracts them from each other by a second button and, further, even when one of the commands of editing processing is being executed, makes it possible to perform a “change”, “cancellation”, “confirmation”, etc. of the mode of processing by operation of the corresponding buttons, thereby enabling change of a once input parameter or initialization of once input information, whereby the efficiency of work in pattern design using a pointing device can be improved.

Claims7

Dependent claims

An editor in a CAD system having a pointing device provided with a plurality of pointing buttons used to operate a cursor on a display for pattern design of a printed circuit board, said editor comprising:

an editor main loop unit governing overall management of various types of events which occur during editing;
operation discrimination processing means for receiving from said editor main loop unit a notification of a button operation when one of the plurality of pointing buttons is operated, recognizing which of the plurality of pointing buttons has been operated, and recognizing a designation of the cursor;
event decision means for receiving a command for inputting an element for constructing a pattern from said editor main loop unit and for deciding whether a request for changing a parameter specifically defining the element has been issued from said operation discrimination processing means;
parameter changing processing means for executing, when the request for changing the parameter has been issued, processing to change the parameter without ending execution of an input command and, after execution, transferring control to said editor main loop unit;
and
element input processing means for inputting the element for an event when said event decision means determines that there is no event corresponding to the request to change the parameter and, after inputting the element, transferring the control to said editor main loop unit.

3 more elements

Dependencies are inferred from the claim text.