JPS6339946B2 - - Google Patents

Description

[Detailed description of the invention]

(a) Technical Field of the Invention The present invention relates to a method for inputting figures into a computer using a digitizer, and more particularly to an improvement in a method for inputting figures divided into a plurality of regions. (b) Background of the technology A digitizer has a graphic input area plane (e.g.
This is a device that has the function of detecting the orthogonal coordinates (digitizer) of a point specified by the operator with a cursor on a plane with a data input area of 1050 x 1200 mm at a resolution of 50 lines/mm and outputting the coordinate values. , a digitizer that detects the cursor position by tracing an input figure placed on the digitizer with a cursor and inputs the generated position coordinate data to the CPU (computer central processing unit), and is widely used as a figure data input means. There is. (c) Prior Art and Problems As mentioned above, a digitizer outputs coordinate values based on actual dimensions for an input figure on the plane of the normal figure input area based on instructions from the cursor, so for example, if the input figure exceeds the data input area. In this case, it is necessary to divide the input figure into multiple small areas and input them. When inputting the shape of this divided small area,
In order to determine the correspondence between the coordinate system of the digitizer and the coordinate system of the original figure, before inputting the divided figure, the coordinates (hereinafter referred to as physical coordinate values) of the points on the divided figure are calculated using the digitizer. Input the coordinate values of each point on the original drawing corresponding to those points (coordinate value in the coordinate system of the original figure: hereinafter abbreviated as logical coordinate value)
must be entered numerically using a keyboard, etc.
When the number of divisions increases, the operation of inputting the logical coordinates corresponding to the physical coordinates becomes complicated, and there is also the drawback that the correspondence between the physical coordinates and the logical coordinates of each point may be mistaken. In addition, the original figure or the divided figure may be enlarged/reduced, and in this case, the above-mentioned corresponding logical coordinate values may be converted and then input, which increases the complexity of the operation. I will do it. (d) Purpose of the Invention The purpose of the present invention is that when inputting a divided figure using a digitizer, inputting the physical coordinate values of several points of the divided figure as in the conventional method, and then inputting the logical coordinate values corresponding to those points. To provide a figure input method that eliminates the need to input numbers using an input means other than a digitizer, simplifies the input operation, and can similarly easily cope with cases where the original figure or divided figures are enlarged/reduced. be. (e) Structure of the Invention The object is to provide a graphic input system comprising a central processing unit having a storage unit, a digitizer with a cursor, input means such as a keyboard, and the like.
The code and scale (enlargement/reduction ratio) of the rectangular original figure area are input into the storage unit in advance using the input means.
, the coordinate values of two opposing vertices of the rectangle, the number of divisions into which the original figure area of the rectangle is divided into a plurality of arbitrary rectangular areas in the orthogonal X and Y axes directions parallel to the sides of the rectangle, and The address assigned to each divided rectangular area and the coordinate values of two opposing vertices of each divided rectangular area are registered and stored, and prior to inputting the divided figure, the code of the original figure and the divided figure are stored. By inputting the address and scale of the divided rectangular area corresponding to the divided rectangular area from the input means, and then inputting the coordinate values of two opposing vertices of the divided rectangular area using the cursor on the digitizer, the coordinate system of the digitizer is inputted. This is achieved by a graphic input method characterized in that the central processing unit converts and makes the coordinate values in the divided rectangular areas correspond to the coordinate values in the coordinate system of the original graphic area. (f) Embodiments of the invention Examples of the invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a graphic input method according to an embodiment of the present invention, FIGS. 2 a and b are flowcharts showing its processing procedure, and FIGS. 3 a, b, and c show an original image area and two examples of division. , Figure 2a is shown in Figure 3b,
FIG. 2b corresponds to FIG. 3c. In the figure, 1 is the CPU (central processing unit), 2 is the digitizer, 3 is the cursor, and 5 is the keyboard
KB, 6 is the display, 7 is the original figure area, 10
11 is a storage unit, 11 is a divided figure control program, and 13 is a storage unit.
is a first area of the partitioned table, and 14a to 14n are second areas of the partitioned table. The CPU 1 is a normal central processing unit, and the digitizer 2 sends the physical coordinate values of the point designated by the cursor 3 to the CPU 1. KB5 is a general-purpose input means, display 6 is for monitoring input/output data, and storage section 10 is for storing input data. It is assumed that the original figure area and the divided small areas are all rectangles with corresponding sides parallel to the X and Y axes. Therefore, these divided small areas may be specified by specifying the coordinates of two opposing vertices. A divided figure control program 11 is loaded into the storage area of the storage unit 10 in the CPU 1 at the time of initial setting, and this program processes both the division registration of the original figure and the input of the divided figure by the KB5 or the digitizer 2. Ru. The processing procedure will be explained below. First, a procedure for dividing and registering an original figure will be explained. Following the guidance displayed on the display 6 by the dividing figure control program 11, the KB5 calculates the original figure code (and name) and enlargement/reduction ratio (scale: hereinafter referred to as scale) of the original figure (area) to be divided. (abbreviated), external coordinate value (coordinate value of two opposing vertices of a rectangular area), number of divisions, address (designation code or number) of each divided rectangular area, and boundary coordinate value of division (two opposing vertices of a divided rectangular area) coordinate values) are input and registered in this order. The CPU 1 stores and holds these registered data in the divided table first area 13 of the storage unit 10 in a format as shown in Table 1, which will be described later. Note that if scale input is omitted, it will be registered as a scale of 1/1. Although the address of the divided rectangular area can be given freely, in this embodiment, the divided area is divided into rectangular shapes using only straight lines parallel to the X and Y axes. , c, in accordance with the order of the divided areas from the origin of the original figure, the coordinates are indicated by two numbers, 0, 1, 2, etc. in the X and Y axis directions, respectively. In addition, each divided subregion is equal (congruent)
When dividing into rectangles equally, you can omit inputting the divided small area address and boundary coordinate values by simply specifying the number of divisions in each of the X and Y axis directions and the boundary coordinate values (in this case, the address and boundary The coordinate values are automatically calculated by the CPU 1 based on the number of divisions in the X and Y axis directions.) For example, in the case of Figure 3b, as shown in Table 1a, the scale A, external coordinates (00 , xy), number of divisions (XY
Common non-uniform division: 11, number of divisions: 05), divided small area addresses (00, 01, 10, 20 and 21), division boundary coordinate values (00, in, roto, hochi and haxy), and In the case of Figure 3 c, input the scale A, external coordinates (00, xy), and number of divisions (XY equal division: 00, number of divisions 2 x 2: 22) as shown in Table 1 b. (In this case, the divided small area address and the divided boundary coordinate values are automatically calculated.) The original figure is divided into the first area 13 of the dividing table of the storage unit 10 in the formats shown in Table 1 a and b, respectively. is registered. The original figure code, scale, and small area address regarding the divided small area and the division boundary coordinate value are used as logical boundary coordinate values to correspond to the second areas 14a to 14n of the division table placed on the storage unit 10, which will be described later, for each divided area. The information is also stored in the partitioned tables in the form shown in Table 2 a and b (pages 001 to 102). The above procedure for registering divided areas is shown in the upper three rows of FIGS. 2a and 2b corresponding to the divisions in FIGS. 3b and 3c, respectively.

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Claims (1)

[Scope of Claims] 1. In a graphic input system configured by disposing input means such as a digitizer with a cursor and a keyboard in a central processing unit having a storage section, inputting information into the storage section in advance using the input means is provided. , the code of the original figure area of the rectangle, the scale (enlargement/reduction ratio), the coordinate values of two opposing vertices of the rectangle, and the X and Y points that are perpendicular to the rectangle's original figure area and parallel to the sides of the rectangle, respectively. The number of divisions into a plurality of arbitrary rectangular areas in the axial direction, the address assigned to the divided rectangular area, and the coordinate values of two opposing vertices of each divided rectangular area are registered and stored, and the division is performed. Prior to inputting a figure, the code of the original figure, the address and scale of the divided rectangular area corresponding to the divided figure are inputted from the input means, and then the opposite side of the divided rectangular area is moved with the cursor on the digitizer. By inputting the coordinate values of two vertices, the central processing unit converts the coordinate values in the divided rectangular area according to the coordinate system of the digitizer to the coordinate values according to the coordinate system of the original figure area, and makes them correspond. A graphical input method that uses