JP2003162369A - Image displaying method and device therefor and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a natural operation feeling and natural output result such as writing with a pen or brush, or as erasing with an eraser without special mode setting operation and to save the labor for this operation in a device which is provided with a drawing function. <P>SOLUTION: Drawing information parameters, which are stored in a coordinate information storing means, such as color, width, transparency of the line of the drawing, and area for the drawing, are altered according to the moving amount of a coordinate input device per unit time. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic information drawing apparatus represented by an electronic blackboard system having a drawing writing function and a function of creating and editing the drawing writing function. The present invention relates to a storage medium storing a display method and a program.

[0002]

2. Description of the Related Art In recent years, in conferences and presentations in offices, etc., text creation and information management are becoming electronic, and there are many forms of advancing while displaying electronic information on a display. Here, you can input coordinates as if you were writing it on the projected image by handwriting and draw freely on the screen, such as a pen-type coordinate input drawing device, or a coordinate input drawing device such as an electronic blackboard system, or a touch panel The number of handwriting input / drawing devices in such a form is increasing.

In such a device, the coordinate information input device such as a pen or a finger is used to input the drawing position coordinate information. However, when the input device is moved in such a conventional drawing device. The locus of its movement is drawn, and the thickness and color of the line drawn here are constant such as a specified value or a value determined by the user.

Many of these drawing devices have a function often called an eraser or a blackboard eraser in an electronic blackboard system. However, the erased range is constant and the narrow range is erased. In this case, it is necessary to narrow the erase range of the eraser and then perform the erase operation, and to erase a wide range, it is necessary to select the wide erase range and then perform the erase operation.

In the above case, in order to change the line thickness, color, transparency, and eraser erase range, it is necessary to change and specify these parameters with buttons, menus, icons, switches, etc. each time. Was needed.

[0006]

In the apparatus having the drawing / writing function as described above, as described above, in order to change the line thickness, the color, and the erase range of the eraser, the change operation is performed each time. It is necessary to change the parameter information of the pen or the eraser each time the user is operating, which makes the operation complicated and hinders the user's thinking.

In drawing, the pen thickness, color, transparency, and drawing range of the pen to be written were constant regardless of whether the moving speed of the cursor was fast or slow.

It is empirically known that when drawing on paper with a pen or a brush, the line becomes thin and the color becomes light when the brush is moved quickly. In the electronic drawing apparatus as described above, such an output cannot be obtained and a natural operation feeling cannot be obtained.

In the case of an eraser, generally, the user moves the cursor quickly when erasing a wide range, and the user moves the cursor slowly when erasing a narrow range. Even if it is moved slowly, the range erased by the eraser cursor is constant, and when changing the erase range, it is necessary to specify the erase range parameter in advance. Therefore, the user is forced to perform a complicated operation even during the operation, and cannot obtain a natural operation feeling.

Therefore, in view of the above points, the object of the present invention is to set the drawing range and the color information and transparency of the drawn line by the coordinate information input device without requiring a special mode setting operation. Information input display device,
A coordinate information input / display method and a storage medium storing a program for the coordinate information input / display device are provided to improve the operational feeling on the screen and obtain a natural operational feeling.

[0011]

In order to achieve the above object, an electronic information drawing apparatus of the present invention is for displaying a display device (1) for displaying drawing information of an information processing apparatus and for inputting coordinate information in the display apparatus. Coordinate pointing means (2), and means (3) for detecting the coordinate pointed by the coordinate coordinate pointing means,
In a device including a drawing coordinate information storage unit (4) for storing coordinate information input by the coordinate designating unit and color information of what is drawn, and a control unit (5) for controlling these, an input is made in the coordinate designating unit. A detection unit that detects a shift amount of the coordinate information thus generated per unit time, that is, a moving speed of the coordinate information instruction unit, and a display that draws drawing information from the information processing device on the display device (1) according to the stored information. A control means (6) is provided.

A coordinate information shift amount per unit time of the coordinate information input from the coordinate information instruction means is calculated. If the shift amount is large, the thickness of the line to be written is thin, the color of the line is thin or the transparency is increased. If the movement amount is small, the thickness of the line to be written is made thick, the color of the line is made dark, or the transparency is lowered.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an overall configuration diagram of an embodiment of the present invention. In the figure, reference numeral 2 is a coordinate information input device, which is a pen input type digitizer in this example. The aforementioned digitizer also includes a mouse, a tablet, and other pointing devices capable of inputting coordinates, which may be a wireless device. Reference numeral 3 denotes a detection unit that receives coordinate information input from the digitizer 2 and notifies the internal information processing unit of the information. Control unit 6 for controlling the display device 1 to display the generated coordinate information, and display device 1 for displaying the drawing information.
Composed of.

2 and 3 show a flow chart of this embodiment.

In step S1, the cursor position information P input from the digitizer 2 is acquired and stored in the drawing information storage unit. In S2, a timer for calculating the moving speed of the digitizer is set. The value of the timer T to be set can be arbitrarily set by the user. When the timer detects that the predetermined time T has passed (S3), the current cursor position P ′ is acquired (S4), the cursor positions P and P ′ acquired in step S1 are compared, and the cursor movement per unit time T is performed. The amount L is calculated (S5). The thickness and color of the drawing information corresponding to the amount of cursor movement are selected (S
6). Specifically, if the cursor movement amount L is large, the thickness of the pen is thinly and continuously changed. At the same time, RGB, which is leaned as color information of the pen, may be changed to lighten the color. In this case, as another means to lighten the color,
The transparency of the drawing information may be increased (S6).

Drawing is performed on the display device based on the drawing information obtained in these steps (S7).

FIG. 2 is a flow chart showing the case of the eraser of the drawing method. An example of the method of selecting the drawing range in step S13 is shown in FIGS. When the cursor C1 indicated by the digitizer moves to C2 as shown in FIGS. 4 to 8, if the portion surrounded by the black frame in the drawing is the drawing portion, the drawing range changes according to the movement range. Figure 4,
FIG. 5 shows a conventional drawing example. If the drawing range is set as shown in FIG. 6, the drawing range can be changed according to the moving distance of the cursor. In addition, the drawing range from the cursor is T
Then, as shown in FIGS. 7 and 8, the T is moved to the cursor C1-C2.
The drawing range can also be changed according to the moving distance of the cursor by changing T in proportion to the moving distance between them.

[0019]

As described above, according to the present invention,
It is possible to change the color, thickness, transparency, and drawing range of the drawn line without requiring special mode setting operations, depending on the moving speed of the coordinate input device, so that you can write with a pen or a brush. It is possible to obtain a natural operation feeling and an output result that is erased with an eraser. In addition, since it is not necessary to change the parameters of each pen each time, the operation can be saved.

[Brief description of drawings]

FIG. 1 is an example of the overall configuration of an electronic table drawing device that is an embodiment of the present invention.

FIG. 2 is a flowchart showing an example of a coordinate input processing part in the present invention.

FIG. 3 is a flowchart showing an example of a coordinate input processing part in the present invention.

FIG. 4 shows an example of a drawing range by the coordinate input device according to the present invention.

FIG. 5 shows an example of a drawing range by the coordinate input device according to the present invention.

FIG. 6 shows an example of a drawing range by the coordinate input device according to the present invention.

FIG. 7 shows an example of a drawing range by the coordinate input device according to the present invention.

FIG. 8 shows an example of a drawing range by the coordinate input device according to the present invention.

[Explanation of symbols] 1 Display device 2 Coordinate pointing means 3 Pointed coordinate detection means 4 Drawing coordinate information storage means 5 control unit 6 Display control unit C1 ・ C2 cursor T Distance T indicating the drawing range from the cursor

Continued front page    F-term (reference) 2C071 CA02 CA04 CB10 DA05 DB02                       DB04 DC04 DC10                 5B050 AA10 BA06 BA16 BA18 CA07                       DA09 EA09 FA02 FA05 FA08                       FA16                 5B068 AA05 BD17 BE08 CC14 CC15                       CC17 CD06                 5B087 AA09 AB04 CC26 DD17 DD19

Claims (5)

[Claims] 1. A display device for displaying drawing information of an information processing device, coordinate instruction means for inputting coordinate information in the display device, means for detecting coordinate points designated by the coordinate coordinate instruction means, and the coordinate instruction. In a drawing coordinate information storage unit that stores coordinate information input by the unit and color / transparency information of a drawn object, and an electronic information drawing apparatus that includes a control unit that controls these, the drawing coordinate information storage unit stores the information. The drawing information parameter is changed according to the movement amount of the coordinate input device,
If the amount of movement is large, thin the parameter information of the thickness,
An electronic information drawing apparatus, which draws thickly when the amount of movement is small. 2. The electronic information drawing apparatus according to claim 1, wherein the drawing information parameter stored in the drawing coordinate information storage means is changed according to the moving amount of the coordinate input device, and when the moving amount is large, An electronic information drawing apparatus, which draws color parameter information lightly and darkly when the amount of movement is small. 3. The electronic information drawing apparatus according to claim 1, wherein the drawing information parameter stored in the drawing coordinate information storage means is changed according to the moving amount of the coordinate input device, and when the moving amount is large. An electronic information drawing apparatus, which draws parameter information of transparency thinly and darkly when the amount of movement is small. 4. In the electronic information drawing device, the drawing information parameter stored in the drawing coordinate information storage means is changed according to the moving amount of the coordinate input device, and when the moving amount is large, the drawing range is widened. An electronic information drawing apparatus, which draws a drawing range narrowly when the amount of movement is small. 5. In the electronic information drawing apparatus, drawing information parameters stored in drawing coordinate information storage means are changed according to a moving amount of the coordinate input device, and transparency parameter information is set when the moving amount is large. A computer-readable storage medium that stores a program for performing a process that is characterized by thinly drawing and darkly drawing when the amount of movement is small.