JPH0375794A - Document forming device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a document creation device having a three-dimensional display function of characters and symbols.

(Prior Art) Conventionally, in a document creation device such as a Japanese word processor, a kana character string input from a keyboard is converted into a kana-kanji character string, and the character string as a result of this conversion is displayed as a dot character pattern on the display screen of a display device. will be displayed as . When displaying such characters, there are cases where it is desired to change the display form of the characters depending on the document being created.

Specifically, outline font data corresponding to the outlines constituting the character pattern is used to process changes in sentence form, such as long, half, and italics, through transformation processing on a two-dimensional plane. There is a method of preparing the data in advance and changing the coordinate point (x, y) of this data by moving it in parallel.

(Problems to be Solved by the Invention) In conventional document creation devices, two-dimensional transformation processing such as long text, half text, italic text, etc. is realized as the display form of characters. However, three-dimensional deformation processing in which characters are pasted onto a three-dimensional surface such as a sphere, for example, has not been proposed.

An object of the present invention is to provide a document creation device that can realize a three-dimensional character display format on a three-dimensional surface using a method using outline font data.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention sets each coordinate of outline font data constituting the outline of a character/symbol on a predetermined three-dimensional plane 0 in response to an instruction from an input device. Calculation by a three-dimensional coordinate conversion means for converting into a three-dimensional coordinate system, a rotational coordinate conversion means for rotating and moving the three-dimensional coordinate system calculated by the three-dimensional coordinate conversion means in accordance with the display angle of the character, and a rotational coordinate conversion means. This device includes two-dimensional coordinate conversion means for converting a three-dimensional coordinate system into a two-dimensional coordinate system for display on a display screen of a display device.

With such a configuration, it is possible to display characters and symbols three-dimensionally in a state where they are pasted on a three-dimensional surface such as a sphere, a cone, and a cylinder.

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a document creation device according to the same embodiment. In FIG. 1, a microprocessor (CPU) 10 is a control circuit that performs document creation processing and controls the operation of each device. The human power control unit 11 is a circuit for temporarily storing and inputting character strings manually input from the keyboard 12 and input information for various operation controls. Proofreading·
The editing device 13 outputs the conversion result of the kana-kanji conversion process performed by the CPU 10 to the display device 14, and controls the three-dimensional display form according to this embodiment.

An outline font data storage device (hereinafter referred to as data storage device) 15 stores outline font data for each character/symbol pattern prepared in advance. The coordinate transformation device 16 is a device for executing coordinate transformation processing necessary for three-dimensional display transformation processing. in particular,
As shown in FIG. 2, the coordinate conversion device 1B includes an outline data three-dimensional coordinate conversion section 20, a three-dimensional coordinate rotation movement conversion section 21, and a three-dimensional coordinate to two-dimensional coordinate conversion section 22.

Next, the operation of this embodiment will be explained.

First, a character/symbol string is input from the keyboard 12,
For example, when a kanji conversion process is instructed, the CPU 10 executes a kana-kanji conversion process corresponding to each character/symbol code of the human-powered character/symbol string. The proofreading/editing device 13 is a CP
The conversion result obtained by U 10 (usually consisting of a plurality of conversion candidates) is output to the display device 14 and displayed on the display screen. The proofreading/editing device 13 reads outline font data corresponding to the characters that are the conversion results from the data storage device 15 and outputs it to the display device 14. The display device 14 constructs and displays outlines of characters to be displayed based on the outline font data.

Here, the specific characters of the character code input from the keyboard 12 are pasted on the three-dimensional surface of the sphere, for example.
Suppose that an instruction is given to display the image in a dimensional manner. Specifically, a character to be displayed displayed on the display screen of the display device 14 is designated with a cursor, and control information such as the viewpoint direction (rotation angle) when displaying is input (step S in FIG. 3).
l). The control information also includes information such as the size and shape of characters to be displayed.

When the information regarding the three-dimensional display format is input, the proofreading/editing device 13 accesses the data storage device 15 and reads out outline font data corresponding to the character code to be displayed (step-52).

The accessed outline font data is transferred to the coordinate conversion device 1B. Here, the outline font data is each two-dimensional contour component point (x.

y) is two-dimensional coordinate system data. With this outline font data, the character corresponding to the ``mouth'' in katakana is displayed composed of two outlines 30 and 31, as shown in FIG. 4, for example.

The outline data three-dimensional coordinate conversion unit 20 of the coordinate conversion device 18 converts outline font data, which is two-dimensional coordinate system data, into three-dimensional coordinate points (x+y+
z) into three-dimensional coordinate system data (step S3). That is, the three-dimensional coordinate transformation unit 20
executes a transformation matrix calculation of a three-dimensional determinant using a mapping function (for example, refer to the document "Practice Computer Graphics" published by Nikkan Kogyo Shimbun). As a result, as shown in FIG. 5, for example, the two-dimensional coordinate system data shown in FIG.
It can be converted into dimensional coordinate system data 33.

Next, the three-dimensional coordinate rotation movement conversion section 2 of the coordinate conversion device 1B
1 executes rotational movement of the three-dimensional coordinate point (x + Vr z) on the spherical surface with respect to the center of the sphere using a rotation matrix based on information corresponding to the input viewpoint direction (rotation angle) ( Step S4). This allows, for example, the sixth
As shown in the figure, the spherical surface 32, which is a three-dimensional surface, rotates, and the viewpoint direction (viewing angle) of the characters 33 pasted on the spherical surface 32 is set.

Furthermore, the three-dimensional coordinate to two-dimensional coordinate converting unit 22 of the coordinate converting device 16 converts the character data consisting of the three-dimensional coordinate system into a two-dimensional coordinate system in order to display it on the display screen of the two-dimensional coordinate system. Processing is executed (step S5). Specifically, a perspective transformation calculation to a two-dimensional coordinate system is performed using a well-known regular perspective transformation matrix.

When such coordinate conversion processing is executed for all the coordinate points that make up one outline of a character (for example, 30 in FIG. 4), the proofreading/editing device 13 converts outline data that connects each coordinate point with a straight line. Generate (step S6). Once outline data is generated for all the outlines of one character, it is transferred to the display device 14. As a result, the display device 14 displays the characters 33 pasted on the spherical surface 32 as shown in FIG. 6, for example, based on the outline data of the two-dimensional coordinate system (steps 87 to 6).
S9).

In this way, three-dimensional coordinate system data consisting of three-dimensional coordinate points on a three-dimensional surface is calculated using outline data of a two-dimensional coordinate system prepared in advance. Furthermore, in order to display on a two-dimensional display screen, we need to convert the three-dimensional coordinate system data into
Find the outline data of the dimensional coordinate system. This makes it possible to display 3D characters as if they were pasted on a 3D surface.
It becomes possible to transform into a dimensional display form.

[Effects of the Invention] As detailed above, according to the present invention, in a document creation device having a display function using outline data in a two-dimensional coordinate system, characters and symbols can be pasted on a three-dimensional surface such as a spherical surface. It is possible to realize a three-dimensional character display format in the attached state.

Therefore, it is possible to transform the three-dimensional display form of created characters and symbols as necessary, so it is possible to obtain effects such as expanding the range of types of documents to be created. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a document creation device according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of a coordinate conversion device of the same embodiment, and FIG. 3 explains the operation of the same embodiment. The flowcharts shown in FIGS. 4 to 6 are diagrams each showing an example of a display format for explaining the operation of the embodiment. 14... Display device, 15... Outline font data storage device, 16... Coordinate conversion device.

Claims (1)

[Scope of Claims] Font data generation means for generating outline font data constituting outlines of characters and symbols to be displayed according to character and symbol codes input from an input device, and according to instructions from the input device. a three-dimensional coordinate conversion means for converting each coordinate of the outline font data into a three-dimensional coordinate system on a predetermined three-dimensional surface; and a three-dimensional coordinate system calculated by the three-dimensional coordinate conversion means for displaying the characters and symbols. A rotational coordinate conversion means for rotationally moving according to an angle, and a two-dimensional coordinate conversion means for converting a three-dimensional coordinate system calculated by the rotational coordinate conversion means into a two-dimensional coordinate system for displaying on a display device. A document creation device characterized by comprising: