JP2675458B2 - Symbol display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a symbol display device suitable for displaying route symbols and the like in electronic equipment such as word processors and personal computers.

[0002]

2. Description of the Related Art Conventionally, in word processors, personal computers and the like, font data representing images are stored in order to display characters, symbols and the like. An outline font is used as the font data. Since the outline font uses vector data in an arbitrary direction, unlike dot data, it is suitable when the character size is enlarged and expressed.

On the other hand, in the figure input mode, various symbols and the like are also enlarged and displayed at arbitrary enlargement ratios, in particular, vertical and horizontal magnifications. In particular, (A) route symbol and (B) shown in FIG. In the case of a division symbol, (C) total sum symbol, etc., it is often desirable to increase the horizontal enlargement ratio instead of the same aspect ratio. If the outline font is used, the symbols and the like can be enlarged and displayed at a desired enlargement ratio in such a case.

[0004]

However, when the aspect ratio is changed and the horizontal enlargement ratio is increased as compared with the vertical direction,
As shown in FIGS. 8 (A) and 8 (B), the diagonal line portion in the portion including the diagonal straight line on the left side of the route symbol (non-simple shape portion) becomes thicker than the right horizontal line portion (simple straight line portion) The shape is not beautiful.

In order to solve this, as shown in FIG. 9, it is conceivable to have a plurality of fonts for route symbols having different aspect ratios, select these fonts according to the aspect ratio, and enlarge the fonts at equal magnification. However, it is impossible to memorize all fonts that match this for an arbitrary aspect ratio, and with the conventional technology, it is not possible to use an outline font to express a route symbol with a free aspect ratio in a beautiful shape. There was a problem.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a symbol display device capable of expressing a route symbol or the like with a free aspect ratio and a beautiful shape. And

[0007]

In the symbol display device according to the present invention, one symbol is stored by separating it into a simple straight line portion consisting of a horizontal line or a vertical line and a non-simple shape portion consisting of other elements. a storage unit for a display condition input means for inputting the vertical and horizontal sizes of the symbols, according to one of the size of the vertical and horizontal sizes input by the display condition input means
And a first magnifying display means for magnifying the non-simple shape portion at equal magnifications in the vertical and horizontal directions to display a part of the symbol according to the determined magnifying power ;
Either vertical or horizontal adopted in the first enlarged display means
The same as the first enlarged display means in the direction of the size of
Enlarge at the magnification ratio and enter display conditions for other directions
Second enlargement display means for displaying by enlarging at an enlargement magnification based on another size input by the means . Also, the first enlarged display means
Is the vertical and horizontal size entered in the display condition input means.
Based on the smaller magnification ratio,
The pure shape part can be enlarged.

[0008]

As described above, in the present invention, the symbol is divided and stored in the non-simple shape portion and the simple straight line portion. Then, the non-simple shape portion is enlarged at an equal magnification, and the remaining straight portion is enlarged at a magnification according to the remaining portion to obtain display symbol data having an arbitrary aspect ratio. Therefore, the beautiful shape can be enlarged for the non-simple shape portion, and the entire shape having a desired aspect ratio can be formed by extending the simple straight line portion. Therefore, the symbol can be magnified and displayed in a beautiful shape with an arbitrary aspect ratio.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration. A keyboard 1 as an input unit, a processing unit 2 for performing various processes, a font storage unit 3 for storing outline fonts such as characters and symbols, and a processing unit 2 are provided. From the display control section 4 which receives the display data and outputs it in a predetermined format, the VRAM 5 which stores the data from the display control section 4 for one screen, and the display section 6 which displays the data from the VRAM 5. Has become. The processing unit 2 refers to the font storage unit 3 to change various data input from the keyboard 1 into display data, and writes the data into the VRAM 5 via the display control unit 4. Then, since the display corresponding to the contents of the VRAM 5 is displayed on the display unit 6, the data input from the keyboard 1 is displayed.

Here, in the font storage unit 3, for example, a root symbol is a simple part including a plurality of diagonal lines as shown in FIG. 2 (A) and a simple horizontal line shown in FIG. 2 (B). It is memorized separately in the straight line part. It should be noted that the outline font is based on about 128 dots in both vertical and horizontal directions, and in the case of a root symbol, necessary data such as coordinates of black dots shown in the figure are stored.

Then, in the case of displaying a symbol that is stored by dividing one symbol, for example, a root symbol, the processing unit 2
Operates as shown in FIG. That is, first, the position (X, Y) coordinates of the root symbol and the sizes XSZ, YSZ in the x and y directions are input from the keyboard 1 (S
1). For example, as shown in FIG. 4, this input is performed by designating one of the four corners of the desired input position, and then moving the cursor to display an arbitrary quadrangle as indicated by the broken line in the figure and diagonally displaying the desired corner. This is done by specifying one point. In the example of FIG. 4, the upper left point is designated, and then the lower right point is moved to a position (480 dots on the right side and 96 dots on the bottom side) to specify the horizontally long size. The standard character size here is 48 × 48 dots.

Then, the processing section 2 compares the input XSZ and YSZ (S2). In the example of FIG. 4 described above, XSZ> YSZ. Therefore, the upper left coordinates (X,
Y), the route symbol enlarged in the horizontal direction is drawn in the rectangular area surrounded by the lower right coordinates (X + XSZ, Y + YSZ).
In this embodiment, first, the areas of the upper left coordinates (X, Y) and the lower right coordinates (X + YSZ, Y + YSZ) are shown in FIG.
The non-simple shape part shown in (3) is displayed with YSZ in both vertical and horizontal lengths, that is, enlarged and displayed in the same vertical and horizontal sizes (S3). next,
Upper left coordinates (X + YSZ, Y), lower right coordinates (X + XSZ,
The above-described font of FIG. 2B is enlarged and displayed in the y direction YSZ and the x direction (XSZ-YSZ) in the rectangular area (Y + YSZ) (S4). Therefore, the non-simple shape part can obtain a beautiful shape at the same magnification, and the horizontal straight line part has the same vertical enlargement ratio (length) as the non-simple shape part, and the horizontal direction remains. Expanded to correspond to the part of (in this example, expanded in the horizontal direction)
Is displayed. As a result, a route symbol with a beautiful shape is displayed despite the large enlargement ratio in the horizontal direction as shown in FIG.

In S2, YSZ is more XSZ
If it is larger or equal, the outline font of the route symbol in FIG. 2 (A) is enlarged to the input size and displayed (S5).

Further, in the case of the curly bracket symbol as shown in FIG. 6, there are linear parts other than the upper part, the lower part and the central part (non-simple shape part). It is better to greatly enlarge only the vertical line part (simple straight line part) which is the intermediate part between them. Therefore, in this example, this is divided into three non-simple shape portions and one simple straight line portion and stored in the font storage unit.
Then, as in the case of the above-described route symbol, the non-simple shape portion is enlarged at the same magnification in the vertical and horizontal directions, and the remaining simple linear portion is adjusted in the vertical enlargement ratio so that the entire size becomes a predetermined size. There, beautiful curly bracket symbols can be displayed.

[0015]

As described above, according to the symbol display device of the present invention, the symbols relating to the combination of the non-simple shape portion and the simple straight line portion are separately stored. Then, for the non-simple shape part, magnify it at the same scale, and for the remaining part, change the simple straight line part to the remaining part.
It is assumed that the entire scale is specified by enlarging the scale according to the scale . Therefore, the route symbol and the like can be displayed in a beautiful shape.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an embodiment.

FIG. 2 is an explanatory diagram showing a storage form of a route symbol.

FIG. 3 is a flowchart illustrating the operation of the embodiment.

FIG. 4 is an explanatory diagram showing an input state.

FIG. 5 is an explanatory diagram showing a display state of a route symbol.

FIG. 6 is an explanatory diagram showing a display state of braces.

FIG. 7 is an explanatory diagram of various symbols.

FIG. 8 is an explanatory diagram showing a conventional enlarged state of a route symbol.

FIG. 9 is an explanatory diagram showing a storage state of a conventional route symbol.

[Explanation of symbols]

 1 keyboard 2 processing unit 3 font storage unit 4 display control unit 5 VRAM 6 display unit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G09G 5/24 610 G06F 15/20 562C

Claims (2)

(57) [Claims] 1. A storage unit for separately storing one symbol into a simple straight line portion consisting of a horizontal line or a vertical line and a non-simple shape portion consisting of other elements, and a display for inputting the vertical and horizontal sizes of the symbol. The condition input means and the vertical and horizontal size input by this display condition input means
Determine the enlargement ratio according to either size
The first magnifying display means for magnifying the non-simple shape portion at a uniform magnification in the vertical and horizontal directions to display a part of the symbol, and the first magnifying display means in the simple linear portion of the symbol.
In the direction of either vertical or horizontal size adopted in
The same enlargement magnification as the first enlargement display means,
One other direction that is input by the display condition input means
A second enlarged display means for displaying by enlarging the image at an enlargement ratio based on the size ; 2. The apparatus according to claim 1 , wherein the first enlarged display means is a display condition input means.
The smallest enlargement factor among the enlargement factors based on the input vertical and horizontal size.
A large magnification is used to enlarge the non-simple shape part.
Symbol display device to be collected.