JPS58223842A - Recording method using plotter - Google Patents

Abstract

PURPOSE:To simplify the constitution of a graphic signal generator, by applying a code corresponding to half of a symmetrical pattern to be recorded in order to record the half pattern and then applying a code of a symmetric recording instruction to record the other half pattern. CONSTITUTION:A data D designates a pattern given from a main electronic computer, etc. via a connector CN and stored in a buffer memory BM in response to an address designating signal AD supplied from a microcomputer MCP. The data D is then applied to the MCP from an interface IF and converted into a code which drives a recording head of a plotter by a graphic signal generator using a memory provided in the MCP. Thus the recording head HD of the plotter is driven via driving circuits DR1 and DR2. When a symmetrical pattern is recorded, a code commanding the symmetrical recording is applied half of the symmetrical pattern after recording the other half of the pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention allows a processor to control a plotter to produce characters and characters.
This invention relates to an improvement in the method of recording the figure of a pattern cape.

Conventionally, 1. Based on data given from outside,
The graphic signal generator generates a code that specifically drives the plotter's recording head, and the processor drives the recording head in accordance with this code. A graphic signal generator must generate a code corresponding to the entirety of the graphic signal generator, and the amount of code in the graphic signal generator increases.If a memory or the like is used as the graphic signal generator, the storage capacity of this increases. There were some drawbacks.

The present invention has the purpose of fundamentally solving the conventional drawbacks, and when recording a symmetrical figure, it gives a code corresponding to half of the symmetrical figure to record the half figure, and also commands symmetrical recording. The purpose of the present invention is to provide an extremely effective recording method using a plotter that can greatly simplify the configuration of a graphic signal generator by giving a code to record the other half.

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

Figure 1 is a block diagram showing the entire configuration, with connector CN
Data D specifying a figure given from an external main computer etc. via the microcomputer MCP is stored in the buffer memory 8 in response to an address designation signal AD from the microcomputer MCP, and then transferred to the microcomputer via the interface IF. computer MC
P, is converted into a code that specifically drives the plotter's recording head by a graphic signal generator using memory in the MauiCro computer MCP, and is sent to the drive circuit DR1゜DR.
i to the X-ray drive step motor SM1 in the plotter's recording head HD, the Y-axis drive step motor SMg, and the magnet (MG) that moves the recording pen up and down. .

Also, a strobe signal STB from the outside instructs the microcomputer MCP to take in data.

Response signal ACK from the microcomputer MCP to the outside
Control signals C8 such as an operation signal BUSY indicating that the plotter is in operation are exchanged between the connector CN and the microcomputer MCP via the interface IF.

2. In addition, a control switch group SW is attached to the microcomputer MCP, which allows manual pen movement control of the recording head HD, selection of pen colors, and pen control when changing pens. It is possible to perform controls such as moving it to a position where it can be easily replaced.

For this reason, the microphone o [processor in the computer MCP responds to the data specifying the figure given from the outside,
After lowering the pen of the recording head HD to enter the recording state, step motor SM! .

SM! By controlling the pipe, data from outside
A plotter records a figure according to the figure.

The following table is a table showing various codes generated from the graphic signal generator, and rlJ to "8" are defined corresponding to the movement direction shown in FIG.

Table 1 Therefore, half of the symmetric figure is recorded using rDJ ~ "8" in Table 1, and rHJ t or "v"
If the other half is recorded using , it is possible to record a symmetrical figure with a small number of codes.

Figure 3 shows an example of the recording situation of symmetric figures. When recording the final figure in figure (4), first, as shown in figure (6), half of the symmetric figure is recorded according to the alphabetical order. In addition, as shown by the broken line in FIG. 6(C), if a code rHJ -1 or rVJ which instructs symmetrical recording is given to record the portion other than the half, the final figure of the same rotation is recorded.

The code groups for recording each figure in FIG. 3 are shown in the following table, but for reference, code groups based on the conventional method are also listed.

Table 2 shows that if 2 codes are 1 byte, the number of bytes required by the present invention is approximately 1 compared to the number of bytes required conventionally.
/2, the storage contents of the graphic signal generator are significantly reduced, and a memory with a small storage capacity can be used.

In addition, @On, @T II, ◆U", 'V"
The same applies to symmetrical figures such as .

Fig. 4 is a flowchart showing the control operation of the processor in the microcomputer MCP to realize the above operation. Find address number X 4, ◆READ
” to read the code from address number
Ash? If this is No, it is determined whether the code [RJ has been read or not. , *X==X+4'
The read address is advanced one by one by , and this is repeated.

B. Also, if there is an H and i'' is YES, reading by ``READ'' is performed from the address number obtained by subtracting 1 from the address number X by 1X=X-1'', and from the reverse direction. , code II) Judge whether or not J has been read by !D with 7'', and while this is NO, convert the read code by Hayabusa CHANGE' so that it applies to the part other than the half of the symmetrical figure. Then, use ◆PLOT' to record other parts than the half, and repeat this process.

Also, do shapes other than symmetrical shapes have SH? “It is No, and the next thing to “Shizuku DECOD” is READ”~5
Recording is performed by repeating the route x=x+i''. Therefore,
As shown in Figure 3C), half of the symmetrical figure is recorded first, and then the other half is recorded symmetrically;
The figure shown in 4) is obtained.

However, the configuration in Figure 1 can be selected arbitrarily depending on the conditions, and can be applied not only to characters but also to symbols and various patterns as long as they are symmetrical. The present invention is open to various modifications.

As is clear from the above explanation, according to the present invention, symmetrical figures can be freely recorded using a small number of codes.
Significant effects can be obtained in recording graphics using a plotter, such as the memory capacity of the graphic signal generator being reduced and the device being able to be constructed simply and at low cost.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a block diagram of the entire configuration, Fig. 2 is a drawing showing the moving direction of the pen, Fig. 3 is a drawing showing an example of a recording situation of a symmetrical figure, and Fig. 4 is a diagram showing an example of a recording situation of a symmetrical figure. 5 is a flowchart showing a control situation by a processor. CN...connector, BM...-(rough memory, I...e interface, MCP...micro computer, DR+, DR2φ...drive circuit,
HD-・Φ・Recording head, SMt, 8Mx working φ/step motor, MG...Magnet. Patent applicant: ShinNippon Electric Co., Ltd. agent Masaki Yamakawa (and one other person) 2 Figure 2 1 Figure 4

Claims (1)

[Claims] In the method of recording a figure by controlling the υ block by a processor, when recording a symmetric figure, a code corresponding to the half of the symmetric figure is given to record the half figure, and the symmetric record is performed. A recording method using blocks, characterized in that a command code is given to record a portion other than the half.