JPH01260577A - Interactive graphic processor - Google Patents

Abstract

PURPOSE:To reduce a load on a computer by attaching an operation control function for a graphic display device and an interactive drawing device on a controller, and performing the transfer of a signal only with the controller by the computer. CONSTITUTION:The computer 5' responds to an interactive graphic processor as one device, and inputs data from the device, and outputs a command to the device. The controller 6 is interposed between the graphic display device 1 and the interactive drawing device 4, and the computer 5', and controls the graphic display device 1 and the interactive drawing device 4 individually by the command of the computer 5'. In such a way, it is possible to reduce the load on the computer 5', and to respond to the control of other devices.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interactive graphic processing device comprising a graphic display device and an interactive drafting device comprising a coordinate detection device and an automatic drafting device.

[Conventional technology]

Means for graphic processing using a graphic display device is used in many fields and is well known. In this graphic display device, a display tube is used to display graphics, etc., and graphic processing can be easily performed. However, on the other hand, there is a limit to the size of the display surface of the display tube.
When drawing figures, etc., it is extremely difficult to intuitively grasp the actual size, which may prevent smooth design.

In order to solve these problems, in recent years, an interactive graphic processing device has been proposed that uses a combination of a graphic display device, an interactive drafting device comprising a coordinate detection device, and an automatic drafting device.

According to this interactive graphic processing device, since the interactive drafting device has a wide board surface, the graphics processed by the graphic display device can be drawn on the board surface of the interactive drafting device in a sense of actual size. The interactive drafting device can perform processes such as isomorphic corrections, changes, additions, etc., and the results can be displayed on the graphic display device. Hereinafter, an outline of the interactive graphic processing device will be explained with reference to the drawings.

FIG. 3 is a block diagram of the interactive graphic processing device. In the figure, reference numeral 1 indicates a graphic display device, including a display tube 1a for displaying figures, and a control unit 1b for controlling the display.
Consists of etc. 2 indicates a coordinate detection device (digitizer), which includes a digitizer board 2a, a digitizer board 2a-
It consists of a control section 2b that detects the coordinates of . Reference numeral 3 denotes an automatic drafting device (X-Y plotter), which includes a drafting section 3a including a drawing board and a writing implement drive mechanism, a control section 3b, and the like. The coordinate detection device 2 and the automatic drafting device 3 constitute an interactive drafting device 4. 5 is a computer that controls the graphic display device 1 and the interactive drawing device 4;

Here, a specific example of the configuration and operation of the interactive drawing device 4 will be explained in more detail with reference to FIG. FIG. 4 is a perspective view of the interactive drawing device 4. FIG. In the figure, 11 is a pedestal, and 12 is a digitizer board of the coordinate detection device 2 installed on the pedestal 11-1- (digitizer board 2a shown in FIG.
). Digitizer board 12 boards (as is known, consists of a synthetic resin board such as acrylic resin,
Inside it, one conducting wire is arranged in a meandering manner parallel to the X-axis direction (the direction of the arrow A group of conducting wires arranged in the Reference numeral 13 denotes an X rail (the lower X rail is not shown) installed above and below the digitizer boat 12 parallel to the X axis. 14 is a Y beam that straddles the digitizer board 12 and moves on the X rail 13; 15 is a carriage disposed on the Y beam 14 so as to be movable in the Y-axis direction. The carriage 15 holds writing implements such as pens and pencil leads. 16 is a cassette case for writing instruments. 17 is a cursor used for coordinate detection;
Equipped with an oscillation circuit. Reference numeral 18 indicates a menu board for providing various commands to a computer (not shown), and ] 9 indicates a menu area for arranging the menu board. 20
is a recording paper stretched over the digitizer board 12, and drawings are made on it by moving the writing instrument held by the key ridge 15.

Now, when the cursor 17 is moved on the recording paper 20''-1 and therefore on the digitizer board 12, a signal corresponding to this is output from the digitizer board 1-12, and this signal is processed by the control section 2b to move the cursor 17 The coordinates corresponding to the movement of are detected, and the values are stored in the storage section of the computer 5. A signal corresponding to the stored coordinates and a movement command signal are sent to the control unit 3 of the automatic drafting device 3.
b, the control unit 3b drives a drive device (not shown) to move the Y beam 14 carriage 15 in accordance with the coordinates. As a result, a piece of cotton corresponding to the movement of the cursor 17 is drawn on the recording paper 20. For example,
To draw a circle with radius R centered at position A (not shown), move the cursor ]7 to menu board 18-1.
- [radius R-].

Place it on the command area that says "Draw a circle", then place the cursor at 17
When placed at position A, computer 5 has the coordinates to the position,
Radius R1 and circle data are stored. The above-mentioned circle can be drawn on the memory paper 20 by giving a command to the control section 3b of the automatic drawing device 3 based on the data stored in the circle. In this way, the drawing person always interacts with the computer 5 to draw the desired drawing.

In an interactive graphic processing device including a graphic display device 1, an interactive drawing device 4, and a computer 5, for example, a graphic created by the graphic display device 1 is processed as coordinate and shape (one straight line, one circle, etc.) data.
It is stored in the computer 5. These figures, two characters, etc. are drawn on the recording paper 20 by the interactive drawing device 4 by outputting a command based on the coordinate two shape data stored in the computer 5 to the control section 3b.

Contrary to the above, the recording paper 20 is created by the interactive drawing device 4.
The figure drawn in 2 is the detected coordinates from the coordinate detection device 3,
Shape data from the automatic drafting device 3 is stored in the computer 5, and can be displayed on the graphic display device 1 according to instructions based on this stored data.

In this way, it is possible to draw while interacting with the computer 5 while maintaining a sense of actual size. Note that the interactive graphic processing device has been used in various ways other than those described above, but a description thereof will be omitted.

[Problem to be solved by the invention]

The operation of the computer 5 in the above-described interactive graphic processing apparatus will be explained in more detail. Now, for example, when drawing a circle with radius R centered on coordinates A, the data is output from the digitizer 2 to the computer 5 as described above. The computer 5 determines that this data is the above-mentioned circle, causes the X-Y plotter 3 to draw this circle, and displays it on the graphic display device 1. That is, for the X-Y plotter 3, "pen up", "move pen to position R from coordinate A", "pen down"
, "Move according to minute line segments forming a circle", "Pen up", etc. are sequentially output.

Further, for the graphic display device W1, the computer 5 itself stores a bitmap corresponding to the dots on the display surface, and the computer 5 calculates the locus of the circle according to the input of the circle data and calculates the trajectory of the circle. Each point on the trajectory is made to correspond to a bitmap, and the required dots are emitted based on this. As a result, the circle is drawn by the pen on the recording paper 20 of the XY plotter 3, and a circle proportional to the circle is displayed on the display surface of the graphic display device 1 by emitting light.

By the way, as is clear from the above operation, although the computer 5 is intended to manage the interactive graphics processing device, it actually manages the graphic display device 1 and the interactive drawing device 4 separately. For this reason, the program of the computer 5 becomes complicated and its capacity increases, and when the computer 5 is also used to control other devices, for example, other interactive graphics processing devices, the control target There was a problem that the number of devices was limited.

The purpose of the present invention is to solve the problems in the above-mentioned prior art,
An object of the present invention is to provide an interactive graphic processing device that can reduce the load on a computer.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a graphic display device, an interactive drafting device comprising a coordinate detection device and an automatic drafting device, and a computer that manages the graphic display device and the interactive drafting device. The interactive graphics processing device is characterized in that it is provided with a control device that controls operations of the graphic display device and the interactive drawing device based on instructions from the computer.

[For production]

The computer treats the interactive graphics processing device as one device, inputs data from this one device, and
A command is output to that one device. The control device includes a graphic display device and an interactive drafting device;
It is interposed between the computer and the graphic display device and the interactive drafting device to be individually controlled by instructions from the computer. This greatly reduces the load on the computer and allows it to control other devices.

〔Example〕

Hereinafter, the present invention will be explained based on illustrated embodiments.

FIG. 1 is a block diagram of an interactive graphic processing device according to an embodiment of the present invention. In the figure, parts that are the same as or equivalent to those shown in FIG. 3 are given the same reference numerals and their explanations will be omitted. 5' is a computer corresponding to the computer 5 shown in FIG. 3, but its functions are different as will be described later. 6 is a controller provided between the computer 5' and the graphic display device and interactive drawing device.

The rest of the configuration is the same as the conventional device. Here, the configuration of the controller 6 is shown in FIG.

FIG. 2 is a block diagram of the controller 6.

In the figure, 61, 62, and 63 are interfaces for connecting with the graphic display device 1, digitizer 2, and X-Y plotter 3, respectively, and 65' is an interface for connecting with the computer 5'. 66
is a central processing unit (CP t, J) that performs necessary calculations and control according to the program; 67 is a memory; program,
Bitmaps and the like used for display on the graphic display device 1 are stored.

Next, the operation of this embodiment will be explained by drawing the previously mentioned circle of radius R with coordinates A as the center.
When the coordinate A is specified, those data are sent to the controller 6.
and is output to the computer 5' via the interface 61, CI U 66, and interface 65'. The computer 5' stores these data and also writes the following command: [Draw a circle with radius R centered on point A].
A command is output to the controller 6. The CPU 66 of the controller 6 uses the program G stored in the memory 67 to execute the manually inputted commands. That is, X-Y
Commands such as pen up, movement of the pen to a predetermined point, pen down, movement of the pen along a minute line segment, and pen up are output to the control unit 3b of the plotter 3. In addition, for the graphic display device 1, first, the locus of the circle in the command is calculated according to the program, a dot on the display surface on the said locus is selected using a bitmap, and the dots are sent to the control section 1b of the graphic display device 1. Output this for. As a result, the control unit 3b drives the drive mechanism of the x-y plotter 3 to draw the above-mentioned circle on the recording paper 20, and the control unit 1b drives the drive mechanism of the x-y plotter 3 to draw the circle on the recording paper 20, and the control unit 1b
The specified dot on the display surface of is made to emit light, and the above circle is displayed.

In this way, in this embodiment, since the controller controls the driving of the graphic display device and the interactive drawing device, the computer only needs to have the functions of recording data and outputting commands to the controller. The burden can be reduced to 1p dog item,
This makes it possible to control more other devices.

In addition, in the explanation of the embodiment described in (g), the operation of drawing and displaying figures was explained, but it is clear that similar operations are performed when transmitting and receiving various signals such as letters and symbols in addition to figures. .

〔Effect of the invention〕

As described above, in the present invention, the control device has the function of controlling the operation of the graphic display device and the interactive drafting device, and the computer is equipped with II? Since signals are exchanged only with the 1fIl device, it is possible to omit the control function of the graphic display device and the interactive drawing device from the computer, and the load can be significantly reduced. Can control other devices.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an interactive graphics processing device according to an embodiment of the present invention, FIG. 2 is a block diagram of a controller not shown in FIG. 1, and FIG. 3 is a block diagram of a conventional interactive graphics processing device. FIG. 4 is a perspective view of the interactive drafting device. 1... Graphic display device, 2...
... Digitizer, 3 ...
····controller. -O.

Claims (1)

[Claims] An interactive graphic processing device comprising: a graphic display device; an interactive drafting device comprising a coordinate detection device and an automatic drafting device; and a computer that manages the graphic display device and the interactive drafting device; An interactive graphics processing device comprising: a control device for controlling operations of the graphic display device and the interactive drawing device based on the graphics display device and the interactive drawing device.