JPS6125241A - Display and plotting method of pattern production terminal equipment - Google Patents

Abstract

PURPOSE:To obtain an accurate pattern by using plural buffer screens for display to display a reference drawing for plotting on one of these screens and performing a plotting action on another screen. CONSTITUTION:A rough sketch drawing 1 is read through a rough sketch input part 2 and fetched by a rough sketch frame buffer 5 for display. A device such as an image reader, etc. is allocated to the part 2. Then a line pattern is produce by means of a certain input device to a plotting frame buffer 6 with reference to a rough sketch displayed at the buffer 5. When the plotting is through with a desired line pattern, the data in the buffer 6 are stored in a memory preserving part 4. Here only the data on the plotted pattern are preserved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field to which the invention pertains) The present invention relates to a display/drawing method on a terminal device for creating drawings consisting of simple line figures.

(Prior art) In conventional terminal devices for drawing figures, one drawing is performed using some input device ν1 on the graphic screen for drawing, such as one for inputting numerical data from a keyboard or a light pen. A device that gives instructions for functions such as specifying a position on the screen and moving/converting it.

At this time, there was a method that gave instructions based on the cursor on the screen using a joystick or mouse.

For those that input numerical data, the input is impersonal and cumbersome; for other types, this part could be improved in that the instructions are not numerical, but for drawing that emphasizes the positional relationship on the screen, For example, when drawing two parallel straight lines, it is difficult to draw even if one is skilled, and accurate drawing can only be done by trial and error or by inputting numerical values. In other words, there was a lack of a tool that could serve as a ruler, allowing humans to intuitively grasp positional relationships.

Also, based on rough sketches drawn by hand,
When drawing accurate and clean drawings on a display, there is a method of first reading the rough draft or sketch from an image reader and then using a recognition means to make a clean copy, but this method requires the entire device to It has the disadvantage that it is very large-scale and processing is non-real-time.

Next, there is a method of placing a sketch on the digitizer and specifying the coordinate points from there.

This requires a very accurate sketch,
Another disadvantage is that the digitizer and display screen are separate, making it inconvenient to check during input work. Also,
The most primitive method is to input numerical values from the keyboard while looking at (or thinking about) the rough sketch, or, although it is somewhat inaccurate, to try it out using an input device such as a mouse or joystick. There is a method of drawing by mistake. However, in this method, inputting numerical values is cumbersome and impersonal, so input errors are likely to occur, and it is difficult to obtain accuracy using a trial-and-error method.

There is also a method in which operations are performed using a mouse, joystick, etc., and numerical information (for example, position information, etc.) obtained by numerical input is displayed at the same time. However, this method has the same drawbacks as the method of inputting numerical data from the keyboard, so it cannot be said that the drawbacks have been solved in the slightest.

(Object of the Invention) The present invention has been made to overcome these drawbacks, and is a display/drawing method on a graphic creation terminal device, in which a plurality of display and play buffers are provided and the Displays a drawing (rough sketch and auxiliary lines) that serves as a guide for drawing, and allows normal drawing to be performed on the other side.

The drawings will be described in detail below.

(Structure and operation of the invention) FIG. 1 is a block diagram showing the structure of an embodiment of the present invention, in which 1 is a sketch drawn by a human, 2 is a sketch input section, 3 is a block diagram showing the structure of an embodiment of the present invention.
4 is an auxiliary line generation unit, and 4 is a memory for storing drawn line figures.
A storage section, 5 is a frame buffer for the sketch surface for displaying the sketch drawing and auxiliary lines, 6 is a frame buffer for the drawing surface for displaying the line figure drawn based on the sketch drawing and auxiliary lines, and 7 is the drawing frame buffer for displaying the sketch drawing and auxiliary lines. Draw, move, and move the drawing frame buffer.
A display section 8 displays a sketch drawing, auxiliary lines, and drawing line figures at the same time.

First, a rough sketch sketch drawing 1 is read from the sketch input section 2, and this is read into the frame buffer 5 for displaying the sketch surface.
Incorporate into. For example, a device such as an image reader is applied to the sketch input section 2.

While referring to this sketch displayed on the display of the draft frame buffer 5, a line figure is drawn using some input device (for example, a mouse, joystick, etc.) in the drawing frame buffer 6. When the drawing of the desired line figure drawing is completed, the data in the drawing frame buffer 6 is stored in the storage section 4. Here, only the drawing data is saved.

FIG. 2 is an explanatory diagram of the overlapping display of a handwritten drawing on the sketch surface and a drawn drawing. On one display screen, the line figures drawn on the sketch surface and the drawn drawing are shown overlappingly.

FIG. 3 is an explanatory diagram of another embodiment of the present invention in which the auxiliary lines on the sketch surface and the drawing surface are displayed overlappingly.

This enables accurate positioning without using numerical data by generating auxiliary lines from the auxiliary line generator 3 on the sketch surface of the frame buffer 5 for the draft surface, and drawing on the auxiliary lines using the auxiliary lines as a guide. It is possible to draw line figures that have a relationship, and on the display surface of the display unit 8, the auxiliary lines on the sketch surface and the line figures drawn on the drawing surface of the drawing frame buffer 6 are displayed. Displayed twice. Furthermore, when drawing, it is possible to grasp the qualitative positional relationship, which is easier for humans to draw.

(Effects) As explained above, the present invention can accurately draw the intended drawing or figure by using the sketch drawing or auxiliary lines as a guide, without having to specify cumbersome numerical values. You will be able to obtain line figures.

By using this method, drawings and line figures can be created even more quickly. In addition, data can be compressed by converting input sketch drawings (photographics) into line figures (geometric figures), and this can also be applied to the transmission of geometric figures using mixed-mode teletex, which will be realized in the future. It is considered possible.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the overlapping display of the handwritten drawing on the draft surface and the drawing surface, and Fig. 3 is an illustration of the overlapping display of the handwritten drawing on the sketch surface and the drawing surface. FIG. 7 is an explanatory diagram of another embodiment of the present invention that performs overlapping display. 1...Drawing drawing, 2...Drawing input section, 3...
Auxiliary line generation section, 4...Storage/storage section, 5...Drawing surface circumference frame buffer, 6...Drawing drawing frame buffer, 7...Drawing/operation command input section, 8...Display Department.

Claims (1)

[Claims] In a display/drawing method on a graphic creation terminal device that creates drawings consisting of line figures, two frame buffers are prepared for display, one buffer is used as a drawing surface for drawing normal line figures, and the other Display/drawing of a figure creation terminal device characterized in that one is used as a sketch surface for displaying a sketch drawing during drawing, and a line figure is drawn as a fair copy on the drawing surface by referring to the sketch surface. Method.