JPH02277121A - Display system for rectangular frame of character - Google Patents

Abstract

PURPOSE:To shorten the time required for the display of characters on a CRT and to improve the responsiveness by reading the segment information out of a data storage part without displaying the information and displaying only a rectangular frame enclosing the character strings when these character are smaller than the set character sizes. CONSTITUTION:Since the characters written at the time of a plotting are usually larger than the character sizes set at a character size storage part 8, the segment information is sequentially read out of a character segment data storage part 10 by a character segment information read processing part 9 and displayed in the screen display area 5 of a CRT display 3 as the actual character strings via a coordinate transformation/display processing part 14. When the characters written in the plotting state are smaller than the character sizes set at the part 8, the process of the part 9 is not carried out and only a rectangular frame is displayed to show the presence of the character strings such as a comment, the dimensional value, etc. In this case, a user can freely set the specific sizes of characters to be displayed via the part 14 to decide a reading unable state in the part 8 through a character size setting/reading processing part 7.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for reading line segment information onto a CRT and displaying characters, and in particular, when the character size to be displayed is small, only a rectangular frame surrounding a character string is displayed. This invention relates to a rectangular frame display method for displayed characters.

[Conventional technology]

Conventionally, in this type of character display method, even if the character size is small and the character is read out from the data storage unit that is broken down into line segment information and stored and displayed on the CRT, the data storage is always interrupted. The line segment information was read out from the section and displayed on the CRT.

[Problem to be solved by the invention]

In the conventional method mentioned above, the font size is small and CRT
Even if characters cannot be read when displayed on the screen, the line segment information is always read from the data storage unit, coordinate conversion processing is executed, the display position on the CRT is calculated, and the display position is displayed on the CRT. With regard to character strings that are clearly illegible due to their small size, there are disadvantages in that data reading time, coordinate conversion calculation time, and character data transfer time to the CRT are wasted.

[Means to solve the problem]

The rectangular frame display method for characters of the present invention is a method for displaying characters with arbitrary widths, heights, and inclinations on a CRT using line segment information, and the character size is read from the data storage section and determines whether to display the characters. and means for displaying only a rectangular frame surrounding the character string to be displayed when the size of the character to be displayed is smaller than the set character size.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. The keyboard 1 generates a corresponding predetermined data code or operation code when an input operator presses any one of keys such as letters, numbers, symbols, etc., and function keys for instructing various operations. The mouse 2 is used to select a desired process on a menu 4 displayed on a CRT display 3 or to specify an arbitrary position in a drawing display area 5. The control section 6 includes a character size setting/reading processing section 72 a character size storage section 81 a character line segment information readout processing section 91 a character line segment data storage section 10 , a drawing data accumulation processing section 119 a drawing data readout processing section 121 drawing data Storage unit 13. It is configured to control the coordinate transformation/display processing section 14.

The character size setting/reading processing section 7 displays a character string input from the keyboard 1 or a character string read out from the drawing data storage section 13 by the drawing data reading processing section 12 on the drawing display area 5 on the CRT display 3. When displaying a character string, the line segment information is read out from the character line data storage unit 10 by the character line information reading processing unit 9 and displayed by the coordinate conversion/display processing unit 14, or only the rectangular frame of the character string is displayed. The coordinate conversion/display processing unit 14 performs a process of setting the character size to be displayed in the character size storage unit 8 or reading it from the character size storage unit.

The character line segment information readout processing unit 9 uses the character line segment data storage unit 10 to display characters of arbitrary width, height, and inclination in the drawing display area 5 using the coordinate conversion/display processing unit 14.
Performs processing to read character line segment information from .

The drawing data accumulation processing section 11 performs a process of accumulating drawing data displayed in the drawing display area 5 by the coordinate transformation/display processing section 14 in the drawing data storage section 13 according to instructions from the keyboard 1 or the mouse 2.

The drawing data reading processing unit 12 reads the drawing data stored in the drawing data storage unit 13 by the drawing data storage processing unit 11, and performs a process of displaying the drawing data in the drawing display area 5 by the coordinate conversion/display processing unit 14.

Next, regarding the operation of this embodiment, when creating a design drawing using a mouse from a large-sized design drawing such as A1, a part of the large-sized drawing is Enlarge and draw. At this time, since the font size of comments and dimension values entered during drawing is usually larger than the font size set in the font size storage section 8, the font lines of the characters are displayed in the drawing display area 5 on the CRT display 3. The line segment information readout processing unit 9 sequentially reads line segment information from the character line segment data storage unit 10, and the coordinate conversion/display processing unit 14
is displayed as an actual string.

Also, when looking at the entire diagram as shown in Figure 2 (b), rather than enlarging a part to draw it, the font size of comments and dimension values for detailed parts is stored in the font size memory. When the character size is smaller than the character size set to 8, the character line segment information reading processing unit 9 does not perform the processing.
Only a rectangular frame is displayed without indicating that there are character strings such as comments or dimension values. Here, the coordinate transformation/display processing section 14 is applied to the drawing display area 5 on the CRT display 3.
Since the user can freely set the size of the displayed font that is unreadable in the font size storage section by the font size setting/reading processing section 7, it can be changed for each user. It is.

〔Effect of the invention〕

As explained above, the present invention has a font size that determines whether line segment information is read out and displayed from the data storage section, and if the font size is smaller than the set font size, the line segment information is read out from the data storage section. By displaying only the rectangular frame surrounding the character string without reading and displaying it, unnecessary data read time, coordinate conversion calculation time, and display data transfer time to the CRT are eliminated, speeding up the display time to the CRT. , which has the effect of improving responsiveness.

Coordinate transformation Display processing section.

Claims (1)

[Claims] In a method in which characters that have been broken down into line segment information and stored are read out from the data storage unit and characters with arbitrary widths, heights, and inclinations are displayed on a CRT, the character size determines whether or not to read them out from the data storage unit and display them. and means for displaying only a rectangular frame surrounding the displayed character string when the size of the displayed characters is smaller than the set character size. method.