JPH03222073A - Drawings input method - Google Patents

Abstract

PURPOSE:To execute a high-speed, exact input by coloring the character part of a drawing in a specific color, processing it to a color picture information, separating it to a character information and a drawing information and processing it, and inputting it to a CAD system. CONSTITUTION:First, an operator executes a specific coloring to a dimension character (c), and prepares a colored area (d). A scanner 2 processes the set drawing 10 to a color picture information, segments the character information based on the color of the colored area (d) and separates the information into the character and the drawing, and temporarily stores them in respective memories. A character recognition part 5 processes the information of a picture memory 3 and outputs this to a file generation part 7. The information of a picture memory 4 is encoded and outputted to the file generation part 7 by a drawing encoding part 6. The encoding part 6 discriminates and recognizes an outline (a) and a dimension line (b) by the thickness of the line. A file generation part 7 prepares a drawing data file 8 and inputs this to a CAD system 9. The correction of the position of the outline corresponding to the dimension line is executed by the position size correction function of the CAD system. As a result, the drawing with the exact drawing dimension can be inputted.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a drawing input method for inputting a drawing including character parts such as dimension characters into a mechanical CAD (computer-aided design) system or the like.

<Prior Art> Generally, in a CAD system, as shown in FIG.
The design work is performed while interacting with the CPU 25 via the CPU 25, and the input data is processed by special software, stored in the storage device 26 as a database, and output to an output device such as a plotter 27.

Digitizer 21 and tablet 2 as the input device
2 is a method in which a drawing is placed on a board and the XY coordinates on the board are extracted as digital data by tracing the points or lines to be input with a pen.

<Problems to be Solved by the Invention> However, this type of input device has problems in that inputting drawings is complicated and time-consuming, and the input speed is slow.

In order to automate and speed up the drawing input process, it is possible to use an image scanner as an input device, but since this type of input device processes drawings as image information all at once, the input accuracy due to quantization is limited. Therefore, there is a problem that the dimensions of figures are not input accurately, and for example, a circle cannot be input correctly as a circle. Therefore, it is possible to correct the dimensions of the figure by recognizing dimension characters, etc., but it is not easy to extract the character information from the image information, so it takes a lot of processing time. It has not yet been adopted as an input device.

This invention was made with attention to the above problem, and aims to provide a new drawing input method that makes it possible to input drawings quickly and accurately by making it easier to extract text information from image information. purpose.

<Means for Solving the Problems> The present invention provides step 2 of coloring the character parts on the drawing to be input with a specific color when inputting a drawing including character parts into a CAD system. and a process of processing the information into color image information.

A series of steps are performed in which the color image information is separated into character information and drawing information, processed, and input into a CAD system.

<Operation> Since the character portions on the drawing are colored, it is possible to easily cut out the character information based on the coloring. The extracted character information is subjected to recognition processing separately from the processing of the graphic information, and the recognition data is used to modify the graphic information. Therefore, it is possible to input drawings into the CAD system quickly and accurately.

<Example> FIG. 1 shows a configuration example of a drawing input device 1 used to input a drawing 10 into a CAD system 9. As shown in FIG.

In the drawing 10, as shown in FIG. 2, an outline line a indicating the outer shape of the object, dimension lines and dimension letters C indicating the dimensions of each part are drawn, and on each dimension letter C are drawn. A colored region d is formed which is colored with a specific color.

The drawing input device 1 includes a color image scanner (hereinafter simply referred to as "scanner") 2 and two image memories 3.
．． 41 Character recognition unit 52 Graphic encoding unit 6. It includes a file generation section 7 as its configuration. The scanner 2 processes the drawing 10 into color image information, cuts out text information from the color image information based on the color of the colored area on the drawing 10, and separates it into text information and graphic information. The separated character information is temporarily stored in one image memory 3, and the graphic information is stored in the other image memory 4.

The character recognition unit 5 performs character recognition processing on the character information stored in the image memory 3 and outputs the recognition data to the file generation unit 7. In addition, the graphic encoding unit 6 is connected to the image memory 4.
It encodes the graphic information stored in , and outputs the encoded data to the file generation section 7 . Note that this graphic encoding unit 6 recognizes the outline line a and the dimension line by distinguishing them by the thickness of the line.

The file generation unit 7 generates a drawing data file 8 using character recognition data and code data, and here, for each character string, the nearest dimension line below it is determined as the dimension line corresponding to that character string. Ru.

The data of the drawing data file 8 is input to the CAD system 9, and in this case, the position and size correction function of the CAD system 9 corrects the position of the outline line corresponding to the dimension line. Therefore, drawings with accurate drawing dimensions can be input.

FIG. 3 shows the procedure for inputting the drawing 10 using the drawing input device 1. As shown in FIG.

In step 1 in the figure (indicated by rsTIJ in the figure), the operator first colors all dimension characters C on the drawing 10 to be input with a specific color to form a colored area d. In the next step 2, the colored drawing 10 is set in the scanner 2 and an input operation is executed to process the drawing into color image information. In steps 3 to 5, this color image information is separated into character information and drawing information, and character recognition and encoding processes are executed individually to generate a graphic data file. Then, in step 6, this data file will be input to the CAD system 9.

<Effects of the Invention> As described above, this invention applies coloring of a specific color to the character portion of a drawing to be input, processes the colored drawing into color image information, and converts the color image information into character information. Since the information is processed separately and input into the CAD system, the recognition data of character information can be reflected in the graphical information processing by the CAD system, making it possible to input accurate drawings. . In addition, since it is extremely easy to cut out character information by coloring the character portion, it is possible to input drawings at high speed, which brings about a remarkable effect that achieves the purpose of the invention.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a configuration example of a drawing input device used in carrying out the present invention, FIG. 2 is a plan view showing an enlarged example of the drawing, and FIG. 3 is a flowchart showing the drawing input procedure of the present invention. , FIG. 4 is a block diagram showing the configuration of a conventional CAD system. 1...Drawing input device 9...CAD system 10...Drawing

Claims (1)

[Claims] A method for inputting a drawing including a text portion into a CAD system, comprising: a step of coloring the text portion of the drawing to be input with a specific color; and converting the colored drawing into color image information. A drawing input method characterized by carrying out a series of steps of processing the color image information into text information and drawing information, and inputting the processed color image information into a CAD system.