JPS63288322A - Graph generating device - Google Patents

Abstract

PURPOSE:To generate a graph by executing a calculation by designation, by providing a means for storing a numerical data corresponding to information to be stored as a graph. CONSTITUTION:This device is constituted of a main control unit, and a plotter control unit which is controlled through a programmable input/output interface PIO1. First of all, by a data table input program, a name of a data table, a size of the data table, and a data of an (m, n) matrix are inputted and stored. Subsequently, by a graph condition input program, a designation of a kind of a graph of a bar graph, etc., and a line of a line graph, a designation of hatching of the bar graph, and a designation of a color are executed. Next, in a graph plotting program, a condition for plotting a graph is checked, an arithmetic processing for plotting a designated graph is executed, and a designated graph is outputted to a plotter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a graph creation device that automatically creates tables and graphs by inputting a plurality of arbitrary numerical data.

[Prior Art] Conventionally, when numerical data is recorded on paper in the form of graphs, computers and the like have been used to save human labor. For example, you can prepare a computer, a cathode ray tube display device, a printer, etc., create a drawing program, or load a previously created program into a convenience store, start the drawing program, and then perform the specified input operations. Create a graph. In such cases, a graph is generally created and edited by specifying the positions of predetermined lines, numbers, etc. and storing them in memory one by one while looking at the screen of a cathode ray tube display device. Once finished, I use a printer to record a graph similar to what is displayed on the screen on paper. Therefore, such a device requires many units such as a cathode ray tube display device and becomes very large. Furthermore, even when such a device is used, it takes a considerable amount of time to create a graph using conventional devices, and those without computer knowledge cannot handle such a device.

Furthermore, even when simply changing the position of a graph, for example, it is necessary to change the values of most of the many pieces of data that make up the graph, which requires re-entering the data, which is very time-consuming. It takes.

[Object of the Invention] The present invention provides a graph creation device that is compact and can create various graphs desired by an operator with simple operations, and a graph creation device that can freely change the position of the graph. The purpose is to provide.

[Components of the invention In order to achieve the above object, the present invention.

An input means having a plurality of keys, a storage means for storing data to be graphed inputted from the input means, a graph style designation means for designating a graph format, and a graph position designation means for designating an output position of the graph. and an arithmetic processing means for arithmetic processing the data to be graphed stored in the storage means in accordance with instructions from the graph format designation means, and designation of the graph position for a graph according to the values created by the arithmetic processing means. and output means for recording at a position designated by the means.

In other words, when each numerical data corresponding to the information to be recorded as a graph is input using the keys of the input means, it is stored in the memory and the graph is actually output (
(recording), the data to be graphed stored in the memory is calculated according to the specifications of the graph position specifying means and the graph format specifying means, and a graph is drawn based on the results.

The graph that is actually drawn is created based on the values calculated from the memorized data to be graphed according to the instructions of the graph position designation means and the graph format designation means. You can change the type of graph recorded and the position of the graph without making any changes.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1a shows the external appearance of the graphing device of the embodiment,
This will be explained with reference to FIG. 1a. 1 is a keyboard, 2 is a display, 3 is a program cartridge (ROM cartridge), 4 is a paper feed knob, 5 is a roll paper cover, and 6 is a paper separator.

As the display 2, a commercially available intelligent type 40-digit 1-line tall matrix liquid crystal display module is used.

Reference is now made to FIG. 1b, which shows the plotter/printer unit of the apparatus of FIG. 1a.

7 is a carriage, and in this example, three pens (oil-based ballpoint pen or water-based felt-tip pen) PI, P2 are placed on it.
．． P3 is now installed.

The carriage 7 is supported by a guide bar 8 and a rear guide 9, and is capable of reciprocating in the axial direction thereof. lO is the platen. A drive wire 11 is coupled to the carriage 7, and the drive wire 11 is coupled to an X-axis direction drive stepping motor MX via a wire pulley mechanism 12. The motor MX drives the carriage 7 and positions the pens PI, P2, and P3.0MY is a Y-axis direction driving stepping motor. The motor MY drives the recording paper 13 in forward and reverse directions via a paper feeding mechanism including a sprocket wheel. In this embodiment, roll paper is used as the recording paper 13. The stepping motors MX and MY used in this example are as follows:
This is a commercially available double 1-2 phase excitation pulse motor.

The schematic structure of the carriage 7 is shown in FIG. 1C.The pen PI (P2 and P3 are the same) has a tip supported by the pen lever 14 and a rear end supported by the pen holder knob 15. It is pressed by a compression coil spring 16. The pen lever 14 is rotatably supported by the carriage 7 about a point PO1, and a plunger of a pen solenoid PSL is coupled to one end 14a. 17 is a magnetic spring 0 Usually a pen solenoid P
The plunger of S1 is in the illustrated position, and the pen P1 is held down by the pen lever 14 so that the tip thereof is separated from the recording paper 13. When the pen solenoid PS1 is energized, the pen lever 14 rotates, and the pen P1 is pushed by the spring 16 and hits the surface of the recording paper 13. In this state, the carriage 7
And/or when the recording paper 13 is moved, a line or the like is recorded at a predetermined position on the recording paper 13.

FIG. 1d shows the key arrangement of the keyboard 1 of the device of FIG. 1a. To explain with reference to Figure 1d, part of the character key is equipped with keys for inputting alphabets, numbers, katakana, kanji, etc., and part of the numeric keypad is equipped with numeric keys, coordinate movement keys, etc. There is.

K1 is the backward key, 2. 3 is the character shift key, K4 is the new line key, K5 is the typewriter key, K6 to 9 is the coordinate movement key, KIO is the delete key, K11 is the minus key,
12 is the reset key, 13 is the interrupt key, K14 is the continue key, K15 is the input key, K16 is the blank key,
K17 is a decimal point key.

2a shows the main control unit etc. of the apparatus of FIG. 1a, and FIG. 2b shows a plotter control unit connected to this main control unit. First, the description will be made with reference to FIG. 2a. A microcomputer CPU 1 performs the main control of this device. In this example, the CPU
280 is used for I. An oscillator and a reset circuit are connected to the CPU1. CPUI address bus.

Various units are connected to a system path consisting of a data bus, various control signal lines, etc. RAM1 is a read/write memory.

ROM1 is a ROM equipped with a large number of read-only memories.
This is a cartridge (program cartridge 3). R
OM1 has a predetermined operation program.

Constant data etc. are stored. The ROM 1 can be freely inserted and removed using a connector, and can be replaced with another ROM cartridge. Liquid crystal display DSP (display 2)
is connected to the system path via buffer BUI and decoder DEI.

The key matrix (keyboard 1) is connected to the system path via the programmable input/output interface PI02. INT is an interrupt generation circuit that detects a CPUI boat input/output instruction using hardware and generates an interrupt. The plotter control unit is connected to the system path of CPU1 via programmable input/output interface P101 and buffer BU2. SP is a speaker used to generate alarms, etc., and is connected to the output port of PIOI via a driver.

This will be explained with reference to FIG. 2b. A microcomputer CPU2 controls the plotter control unit.
Like CPU1, z80 is used for this. C.P.
The system path of U2 is connected to a read-only memory ROM2 storing operating program data, etc., a read/write memory RAM2, a timer unit CTC1, programmable input/output interfaces PIO3, PIO4, etc.

The boat of PT○3 is connected to the interface circuit BU2 of the main control unit and the left margin detector (which issues a signal depending on the position of the carriage 7) of the printer/plotter unit.

The output boat of PIO4 has a stepping motor MX,
MY and three pen solenoids Psi.

PS2. Drivers DXI to DX8, D that drive PS3
YI~DY8. DPI to DP3 are connected.

To explain the general operation, the microcomputer CPU2
receives command data from the main control unit based on the operation program data stored in ROM2,
and motors MX, MY, pen solenoids PS1 to PS
3 drive is performed.

Table 1 below shows changes in the excitation state of each of the excitation coils XAI to XB2' when driving the motor MX in a predetermined direction.

Table 1 Note) O indicates energized, blank indicates de-energized.

To explain with reference to Table 1, motor MX has an excitation of 1
-2-3-4...When changing to 16, forward rotation (CW)
)L, if you change it in the opposite direction to 16-15-14-13...l, it will be reversed (CCW).

By changing the excitation state from 1 to 16, the motor MX moves 16 steps in a predetermined direction (in this example, i6XO
, 45 degrees). Similarly to motor MX, motor MY operates by exciting excitation coil YAI-VB2''. In this example, motors MX and MY do not have a dash (') attached to the excitation coil symbol. The impedance is 1°92Ω, and those with a dash have an impedance of 3.57Ω.

In this embodiment, 16 pieces of data corresponding to each excitation state as shown in Table 1 are stored in the ROM2, and the microcomputer CPU2 reads the excitation data from this memory at a predetermined timing generated by the timer CTC1. It reads out and outputs it to a predetermined port of PIO4, and also changes the read address of the memory.

FIG. 3 shows the relationship between input codes of the plotter control unit and functions or characters, and Table 2 below shows the relationship between each operation command consisting of a plurality of codes or a single code and its operation.

Table 2 (1) Table 2 (2) When the plotter mode is specified (that is, DC2, 2 is input), the plotter control unit operates according to the plotting command and coordinate specification command specified next. . The following Table 3 shows plotting commands, coordinate designation commands, and operations of the plotter control unit for each command.

Table 3 (1) - Plotting commands Table 3 (2) - Coordinate designation commands For example, when drawing a straight line from the current position to a predetermined position, the following signals are given to the plotter control unit.

DC22C,R・・・Plotter mode specification DC26
C, R...1x scale specification DC2A C, R...Pen Pi specification DC2D C
,R...Specify coordinate rotation 0 degrees GOI...Specify solid line X+lOO...Specify X coordinate of +100Y+100C
, R+lOO, the plotting control unit will change the Y coordinate to +100 . from the current position. Y is +
Control to draw a straight line up to coordinate 100.

Further, when drawing an arc, the following signals are given to the plotter control unit, for example.

DC22C,R・・・Plotter mode specification DC26
C, R... 1x scale specification DC2B C, R... Pen P2 specification DC2D C
,R...Coordinate rotation 0 degree specification GO2...
...Circular arc designation U+100...Draw a line to the relative X coordinate of +100 v-ioo...Draw a line to the relative Y coordinate of -100 J+100 Specify the relative Y coordinate of C, R+100 as the starting end With the above specifications, the plotter control unit will move from 0. Draw an arc whose radius corresponds to the length of 100 steps from the relative position of +100 (X, Y) to the relative position of +ioo, o.

The microcomputer CPU1 of the main control unit shown in FIG. 2a performs a predetermined operation by wiping the program data stored in the ROM cartridge ROMI. FIG. 4a shows a schematic operation of the CPU, and FIG. 4b 4a shows the operation of the data table input program, FIG. 4c shows the operation of the graph condition input program of FIG. 4a, and FIGS. 4d, 4e, and 4f show the graph drawing program of FIG. 4a. Figure 4g shows the operation of Figure 4a.
The data table drawing program shown in Figure 4h is shown in Figure 4a.
The figure shows the operation of the data table correction program.

First, explanation will be given with reference to FIG. 4a. When the power is turned on, the CPU first performs initial settings (mode settings).

After clearing memory, etc.), a pulse is output to a specified port of PIOI, and a short buzzer sound (
bell) is output twice.

Perform predetermined input/output operations on PIO2 to start scanning the key matrix, and then write multiple 8-bit codes so that the message "Menu?" is displayed on the display DSP. A predetermined code signal is output.

Reads only numeric input from the keyboard. When the operator operates a key, the CPU prohibits key input and determines whether the input key is pressed. If the input key does not correspond to a number between 1 and 9, a relatively long-duration buzzer sound is emitted. Output times. When numerical values 1.2, 3.4, and 5 are input, a data table input program, a graph condition input program, a graph drawing program, and a data table correction program are executed, respectively.

Next, the data table input program will be explained with reference to FIG. 4b. First, the memory contents of a predetermined range of addresses in RAM1 allocated to the data table are cleared.

Next, input processing for the name to be given to the data table is performed.

First, the DSP displays "DATA?" and waits for the key to be pressed. When the key is pressed, it generates the character code assigned to that key, and sends this code to the DSP to print it. indicate.

If the input key is 15 and the input end key is 15, the process advances to the next step, otherwise the process returns to waiting for human input. When the input is completed, a predetermined number of generated character codes are stored at a predetermined address in the RAM1.

Next, data table size designation input processing is performed.

That is, in this embodiment, the numerical data to be graphed is treated as data in a two-dimensional array, so first, the number of column orders N wax and the number of row items M max of this array are specified. D
The SP displays "DATA Hyo no Ooksa, Gyousuuuresuuu?".

For example, “3 tt, $1-#l, #16 tt,
When the K 15 key is operated, 3 is designated as the number of rows and 6 is designated as the number of columns.

This data is stored at a predetermined address in RAMI.

Next, perform the display data input process for each column item. For example, if you are inputting monthly data into the column item,
〃January'', ''2 corresponding to each column of the 1st item to the 6th item
Input the month "...June" respectively. Each DSP has llN Remeno Hyouji? ”(N=1~Nm
a) is displayed.

Next, perform the display data input process for each line item. For example, if you want to input data for each year in the line item,
"55" and "56" corresponding to each column of the 1st to 3rd rows
” and “57” respectively.

Each DSP has “N Gyoumeno Hyouji?” (N
= 1 to Mmax), and then performs unit data input processing for displaying line items, and outputs "Gyou Hyou Jino Tan I" to the DSP. If you enter "year" here,
Each line item display data is recorded as 55, 56, and 57 years.

Next, perform numerical data input processing for each item in the specified number of matrices. Initially, matrix (m, n) is set to (1, 1), and D
The SP displays "DATA (1, 1)?" and has an input. When there is an input, the data is stored in the memory address for storing matrix data, the number of columns n is updated, and the DSP is also displayed. Update. When the input up to n=N■ax is completed, n is returned to 1, the number of rows m is updated by 1, and m=M
The above process is repeated until the process up to ax is completed.

When this is completed, "DATA not input" is output to the DSP, which performs numerical data unit input processing for each matrix. For example, if you enter "0 yen", the unit will be stored as "yen".

Next, the data table drawing program will be explained with reference to FIG. 4g. First, the data to be output as a data table is RA
Check whether it is stored at a predetermined address in M1. If there is no data, the DSP will say “No data?
” and returns to the main routine. If there is data, all matrix data is checked and the number of digits of the one with the largest number of digits is memorized.

After checking the number of digits, the lengths of each table frame are determined based on the number of rows and columns specified in the data table input program and the maximum number of digits data. In this embodiment, if the maximum number of digits is 5 or less and the number of columns is 8 or less, or if the maximum number of digits is 6 or more but the number of columns is 4 or less, column items are arranged in the width direction of the recording paper. If horizontal writing is automatically selected and the number of columns is 9 or more even if the M large digit number data is 5 digits or less, or if the maximum number of digits data is 6 or more digits and the number of columns is 5 or more, it is written in the width direction of the recording paper. Automatically select vertical writing to place line items in.

The size and width of each item in the frame is Maximum recording width - line display data fil! Recording area width column number of items is set to

In addition, in this embodiment, 1 is normally output in 1x characters when recording, but if the maximum number of digits of each item is within 5 digits and the number of columns is 34 or more, or the maximum number of digits of each item is 6 or more digits. If the number of columns is 21 or more, reduce the size of the recorded characters by half.
I'm trying to set it to double.

A predetermined code signal is sent to the plotter control unit so as to draw a table frame of the size set in the above processing, and the coordinates of each line are designated and each straight line is drawn.

The name of the table, the two-row display data, the column display data, etc. set in the processing of the data table input program are respectively recorded in the two-row display data recording area, the two-column display data recording area, etc. in the upper center of the table.

FIG. 5a shows an example of creating a data table. To explain with reference to Figure 5a, in this example, the name of the table is set to ``Number of Sales by Product Name'', the table size is set to 6 columns and 2 rows, and the item data in 1 column is sr1rr~H6II, and the unit is ``''. Month"'
and line item data II A II, 7113
'1 Set the unit to °' product name ratio, and set the unit of the numerical value to '
In this example, the column order number is 6 and the maximum number of digits for each item is 2, so it is written horizontally.

The font size is 1x.

Next, the operation of the data table modification program will be explained with reference to FIG. 4h. First, check whether data exists in memory. If there is data, it is then sent to the DSP.”
DATA Pango Gyouretsu? '' and wait for the data number (array) to be input.Here, for example, if you input 15 in l13#l, J..., n2'', the data number in the 3rd row and 2nd column will be displayed. Data is specified. When this specification is made, the DSP will have "(3-2)=70...Syn D.
AT A? ” is displayed and waits for the input of the data to be updated.Here, for example, 15”, “O”, K 15
When you input (input end key), the data in the third row and second column is updated to 50. Next, send the DSP again “DAT”
A Pango Gyouretsu? ” is displayed, wait for the data number (array row/column) to be input, and repeat this operation. If no further data correction is required, press 15 again to end this process. do.

Next, the operation of the graph condition input program will be explained with reference to FIG. 4c. First, check whether there is data to be output as a graph.

If there is data, first specify the graph type.

The DSP displays ``Graphnoshrui?'' and waits for key human power. Here you can select the graph type by number. 1 is a bar graph, 2 is a comparison graph, 3 is a stacked graph, and 4 is a line graph. When this input is completed, the 9th order waits for input of the graph name. The DSP displays "Graph no name?"

When this is input, the first row or column to be output as a graph is specified, but before that, depending on the type of graph, the maximum number of specified rows or columns per item (i.e. maximum number of inputs: ordinary bar graph In this case, set (restrict) l).

Next, the key input for the row or column (first time) to be output as a graph is awaited. At this time, the DSP displays ``'GRAPH NI SURGYO MATAHARETS?''.

Next, the screen waits for an input to specify the color of the line or bar used to record the graph in the specified row or column. At this time, the DSP displays "Sen no Iro?" or "Bouno Iro?". In this case, the specification is done using numbers. 1 is black, 2 is red, and 3 is green.

Further, if a bar graph is specified, the screen waits for an input to specify the hatching type of the graph, and if a line graph is specified, the screen waits for an input to specify the line type. These designations are made numerically.The hatching designation is 1 for Ko, 2 for E, and 3 for stone.The line designation is for 1 to be a solid line, 2 to be a dotted line, and 3 to be a dashed line. In the comparative bar graph, stacked bar graph, or line graph mode, by repeating this process, a graph with a predetermined number of rows (or columns) is output for one item.

Next, the graph drawing program will be explained with reference to FIGS. 4d, 4e, and 4f. First, before this process, it is checked whether graph conditions are set.

If it is not set, a warning message is output to the DSP and the process returns to menu specification. If the graph conditions are set, you will then be asked to input the size of the graph to be recorded.

``Graph size?'' is displayed on the DSP. This designation is done numerically, l is A3 size, 2 is A4 size, 3 is A5 size, 4 is B4 size, 5 is B5 size, 6 is B
6 size, 7 is B7 size, and 8 is B8 size. Next, the system waits for an input to specify the number of sheets to be printed.

The DSP displays "Sakuzumaisuu?".

Next, check the drawing mode and determine whether it is a stacked graph. If it is not stacked, it searches for the largest number among all the numerical data to be output as a graph and stores it. If stacking is specified, check the number corresponding to the length of stacked graphs for each item.

Memorize the largest number among them.

Normally, the horizontal axis of the graph is set in the width direction of the chart paper (carriage scanning direction), and the vertical axis is set in the chart paper feed direction, but check the number of items in the horizontal direction, etc., and set the horizontal width of the graph size to the plotter's effective width. If you want to go outside the drawing area, change this direction to 90
Set to rotate (switch the X-axis direction and Y-axis direction).

Subsequently, a plotting mode designation command (ie, DC2, 2) is output to the plotter control unit.

If the rotation designation is 0 degrees, the recording paper is fed in the forward direction by a length corresponding to the height of the graph, and then the current position of the plotter is designated as the origin. This process is not performed if the recording direction is specified to be rotated by 90 degrees.

record the outer frame of the graph at the specified size.

That is, each line forming the frame is drawn by sending predetermined coordinate designation data to the plotter control unit.

Next, move the pen to the graph origin determined by the graph size. In addition, the coordinate origin of the graph and the length of the vertical axis.

The horizontal axis length etc. are stored in a constant data table in ROM1 for each specified graph size, and by reading the data from the address corresponding to the graph size, the specified data can be obtained immediately. There is.

Next, calculate the vertical axis scale amount according to the maximum value of the numerical values to be graphed (added in case of stacking) and the length of the vertical axis determined by the graph size, and also calculate the horizontal axis scale determined by the graph size. The horizontal item spacing is calculated from the length and the number of rows or columns.

Calculation (scaling) of the vertical axis scale amount is performed as shown in FIG. 41, and will be explained with reference to FIG. In the embodiment, the resolution A of the numerical values to be graphed is set at 0.001, and the scale is set at a maximum of 10 divisions. To determine the scale that appears immediately above the maximum value to be graphed (maximum scale), do the following. First, the maximum value D
■Divide aX by A and check how many steps there are. If the result is 10 or more, multiply A by 10, check again in the same way, and repeat this to find a value less than 10 (1 or more). For example, if D■ax is 27, n(n
When the initial value of (0) is 4, the result is 2.7. As a result, find a positive integer that is larger than the linear value of a. m (initial value is l) from the value of a until the result is 1 or less
), and if the result is less than or equal to 1, add 1 to m. When this is done, m becomes 3 if the value of a is 2.7.

Therefore, it can be seen that the scale should be set to three lines based on the value of m.

Also, from the value of n, the numerical value to be attached to each scale can be determined.

The maximum scale value is stored in C.

Next, a vertical axis and a vertical axis scale are drawn based on the above calculation results, and the numerical value and unit of the vertical axis scale are recorded. In addition, when recording nine numerical characters, etc., after outputting the printer mode designation command DC2, l to the plotter control unit,
Sends a predetermined character code.

Next, draw a horizontal axis, check the number of items, etc. to determine whether horizontal writing is possible, and depending on the result, record the horizontal display items and units in horizontal or vertical writing at predetermined positions.

Next, record the graph. First, the contents of the height integration memory are cleared. Position the pen at the starting point and draw a line or bar graph of a predetermined length corresponding to the numerical value of the data from that position. In the case of stacking, the memory for height integration is
Add the current data value. Check for the presence of data for the same item, and record a line or bar graph until there is no data.

In the case of stacking, the next time the starting point of the graph will be determined by looking at the contents of the height integration memory, and in the case of a comparison graph, the starting point will be a position moved by a predetermined amount in the horizontal axis direction from this time. In the case of a normal bar graph, when one graph is drawn in the - item, the process immediately advances to the next item. In addition, in the case of a stacked graph, a connecting line is drawn to connect the items. Furthermore, other than ordinary bar graphs, record what each graph represents.

Finally, record the specified graph name at a predetermined position on the graph, and move the pen to the origin of the frame.

Note that the coordinate movement keys 6 to 9 are used to manually specify to the plotter control unit to change the pen coordinates in the direction of the respective arrow while these keys are pressed, and these keys cannot be operated. Graph drawing operation 9
The pen coordinates can be moved to an arbitrary position in advance before performing a table rotation operation or the like.

As mentioned above, if the rotation specification is 0 degrees, the current position of the plotter, that is, the current coordinates of the pen, will be specified as the origin after the recording paper is fed in a predetermined direction, so press 6 on the coordinate movement key. If you start drawing after moving the pen in advance by 9 to ~, you can change the position where you want to draw the graph.

Fig. 5b shows an example of drawing in the normal bar graph operation mode, Fig. 5c shows an example of drawing in the line graph operation mode, Fig. 5d shows an example of drawing in the comparison bar graph operation mode, and Fig. 5e shows a drawing example in the comparison bar graph operation mode. The figure shows an example of plotting in stacked bar graph operation mode.

[Effects] As described above, according to the present invention, various types of graphs can be drawn with simple operations, and the drawing pen can be moved to the position where the graph is drawn without having to re-enter drawing data. It can be changed freely within the specified range.

[Brief explanation of the drawing]

Fig. 1a is a perspective view showing the external appearance of a graph plotting device according to an embodiment, Fig. 1b is a perspective view showing the main mechanism of the device of Fig. 1a, and Fig. 1C shows the vicinity of the carriage of the device of Fig. 1b. The side view, FIG. 1d, is a plan view of the keyboard l of the device of FIG. 1a. FIG. 2a is a block diagram showing the main control unit etc. of the apparatus shown in FIG. 1a, and FIG. 2b is a block diagram showing a plotter control unit connected to the circuit shown in FIG. 2a. FIG. 3 is a plan view showing the relationship between the reception code of the plotter control unit of FIG. 2b and its functions. Figures 4a, 4b, 4c, 4d, 4e,
Figures 4f, 4g, 4h and 41 are
3 is a flowchart showing a schematic operation of the unit shown in FIG. Figures 5a, 5b, 5c, 5d and 5e
Each figure is a plan view showing an example of drawing in each operation mode of the apparatus of FIG. 1a. l: Keyboard (input means) 2: Display (character display means) 3 Nibragram cartridge 4: Paper feed knob 5: Roll paper cover 6: Paper separator 7: Carriage 8, 9 Ni guide par 10 Ni bra ten
11: Drive wire 12: Wire pulley mechanism 13: Recording paper 14: Pen lever 15: Pen holding knob 16.17: Spring PL, P2. P3: Pen MX, MY paint chipping motor Ul: Plotter control unit (output means) U2: Main control unit (arithmetic processing means) CPUI, CPU2:
Microcomputer DXI ~DX8, Dl ~
DY8, DPI to DP3: Driver KT: Numeric keypad (graph format designation means) K6 to 9: Coordinate movement key (graph position designation means) ηice = n + 1 = Egopa l raw 10-3'''0 a < 10 [S m knee -1 b = a-m foil 5 d wings] Number C Tsunai seV

Claims (1)

[Claims] An input means having a plurality of keys, a storage means for storing data to be graphed inputted from the input means, a graph style designation means for designating a graph format, and a graph position designation means for designating an output position of the graph. and an arithmetic processing means for arithmetic processing the data to be graphed stored in the storage means in accordance with instructions from the graph format designation means, and designation of the graph position for a graph according to the values created by the arithmetic processing means. A graph creation device comprising an output means for recording at a position specified by the means.