JPH05282427A - 3D graphic processing system - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the operability of a three-dimensional graphic processing system by making it possible to simultaneously use a plurality of input plane areas. In a three-dimensional graphic processing system for operating a position of a three-dimensional figure displayed in a three-dimensional space via an operation plane area, a plurality of operation plane areas each having the same origin are assigned to the plurality of operation plane areas. The position input section is provided, and each position input section is configured as, for example, the first and second buttons of the mouse, and when the user specifies the position with the first button, the position is input to the first button. The processing is performed as a position operation in the operation plane area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing system for a three-dimensional figure in a three-dimensional space using a computer, and is particularly suitable for efficiently inputting the position of the three-dimensional figure in the three-dimensional space. The present invention relates to a three-dimensional graphic processing system.

[0002]

2. Description of the Related Art CAD (Computer Aided)
In a three-dimensional graphic processing system that uses a three-dimensional image (Design, computer-aided design), processing such as enlargement, reduction, and rotation is performed on the three-dimensional image. In this case, the position relating to the three-dimensional figure in the three-dimensional space, for example, the vertex of the three-dimensional space, the end point of the line segment in the three-dimensional space, the center of the sphere, the constituent points of the point sequence figure, the arrangement position of the figure, etc. are input, Each processing is performed. That is, the surface is surrounded by a line, the line connects two points, and the three-dimensional figure is composed of several vertices. Therefore, when a three-dimensional figure is three-dimensionally expressed on a plane, it is considered which position each three-dimensional vertex corresponds to on the plane.

In order to perform operations such as creating or changing a three-dimensional figure by inputting the position in such a three-dimensional space,
This is done via a flat screen for input. That is, one operation plane area is set in the three-dimensional space, and the user inputs the position in the operation plane area from the input device as the position of the three-dimensional space.
According to such a conventional technique, the user can easily input the position on the plane set in the three-dimensional space in the system from the planar operation surface.

However, in such a conventional technique,
Only one plane area for input is effective at the same time.
Therefore, for example, when inputting the position moved in the direction perpendicular to the plane from the planar operation plane, the user:
The setting in the height direction of the input plane must be redone.

[0005]

The problem to be solved by the prior art is that in the prior art, there is only one simultaneously effective plane area for input, and the user can select any direction in the three-dimensional space. It is not possible to easily perform the position input operation to. An object of the present invention is to solve these problems of the prior art and to perform an input operation on a display screen of a three-dimensional figure to enable input of an arbitrary position in a three-dimensional space, thereby improving operability. It is to provide a system.

[0006]

In order to achieve the above object, the three-dimensional graphic processing system of the present invention adds, in addition to one conventional input surface, another input surface in the height direction. Introducing the concept, (1) In a three-dimensional figure processing system that operates a position of a three-dimensional figure displayed in a three-dimensional space through an operation plane area, at least three
A first button used for designating a movement destination of the position on the first operation plane area of the three-dimensional figure displayed in the three-dimensional space;
A second button which shares the origin with the operation plane of and is used for designating the movement destination of the position of the three-dimensional figure displayed in the three-dimensional space on the second operation plane which is not parallel to the first operation plane. And an input device having the first button and the second button of the position input means in the same housing, and a plurality of operation plane areas each having the same origin are position input. It is characterized in that it is assigned to each button of the means.

[0007]

In the present invention, the input device is provided with a plurality of position input buttons, and the operation plane area of the three-dimensional space is assigned to each button. As a result, the position input by the user using the respective buttons in the three-dimensional space displaying the three-dimensional figure becomes the position in the operation plane area assigned to the respective buttons. For example, an input device such as a mouse is provided with three buttons, the first button has a conventional operation plane area (hereinafter referred to as the first input surface), and the second button has the first input. When an operation plane area (hereinafter referred to as a second input surface) having the same origin as the height direction with respect to the surface is assigned and the user inputs the position with the first button or the second button, The position is input on the first and second input surfaces. When the user operates the third button, the solid figure is output in the three-dimensional space based on the positions on the first and second input surfaces input by the first button and the second button. To start. In this way, the user can easily input the position relating to the three-dimensional figure by operating at least three input buttons and operating on the three-dimensional space screen.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a configuration according to the present invention of a three-dimensional graphic processing system according to the present invention. The three-dimensional graphic processing system according to the present embodiment includes the first to the first
A mouse 4 as an input device having a position input section composed of three buttons, namely, three buttons 1 to 3, in the same housing, a keyboard 5 used for inputting a character code, and a mouse 4.
And a processing device 6 for generating and changing a three-dimensional figure according to the present invention based on a user's operation instruction input through the keyboard 5 and the like, and a display device 7 for displaying a processing result of the processing device 6. ing. Further, the processing device 6 includes an input processing unit 8 for generating and changing a three-dimensional figure according to the present invention, an expected input position storage unit 9 for storing information used in the processing of the input processing unit 8, and a processing device. 6
It has a main controller 10 for controlling the overall operation of the. The input processing unit 8 includes the first to third buttons 1 to 3 provided on the mouse 4.
The individual processing corresponding to each is performed. In this embodiment, the first button 1 is an XY having an X axis and a Y axis.
The position information assigned to the operation plane area (first input surface 12 in the figure) parallel to the plane and input by the first button 1 is the position input in the operation plane area of the XY plane. Also, the second button 2 is a Z-X consisting of an X axis and a Z axis.
It is assigned to the operation plane area (second input surface 13 in the figure) parallel to the surface, and the position input by the second button 2 is
-It is a position input in the operation plane area of the X plane. And
The third button 3 is used to activate the display output of the three-dimensional figure using the position input with the first button 1 or the second button 2. With such a configuration, in the three-dimensional graphic processing system of the present embodiment, the user operates the three input buttons provided on the mouse 4 to display the three-dimensional graphic on the screen 11 of the display device 7. The operation can be performed easily. Hereinafter, the operation of the three-dimensional graphic processing system of this embodiment will be described based on the three-dimensional space shown on the screen 11. still,
Display control of information relating to a figure in a three-dimensional space is generally performed by a conventional technique, and details thereof will be omitted in the following description.

In the three-dimensional graphic processing system of this embodiment,
First, based on the user's input with the keyboard 5, the input planned position P ₀ and the input planned position P ₀ are origins, and the first two-dimensional operation plane regions in the three-dimensional space are formed.
The input surface 12 and the second input surface 13 are set, and the planned input position P ₀ is displayed on the screen 11 of the display device 7. next,
When a new position is designated by the operation of the first button 1 by the user and the movement amount from the input planned position P ₀ is input, the movement amount is displayed on the first input surface 12 of the three-dimensional space. As the amount of movement of the estimated input position P ₀ in the three-dimensional space by the amount of the movement, and the new estimated input position P ₁
Is displayed on the screen 11 of the display device 7. Similarly, when the movement amount is input by the operation of the second button 2 by the user, the movement amount is set as the movement amount on the second input surface 13 in the three-dimensional space, and the estimated input position P _0. In three-dimensional space,
The new planned input position P is moved by the amount of movement.
₂ is displayed on the screen. And the third button 3 of the user
When the output instruction is input by the operation of, the figure is output with the new planned input positions P ₁ and P ₂ as the input positions. Thus, in the three-dimensional graphic processing system of this embodiment,
In the operation of inputting the position of the three-dimensional figure in the three-dimensional space, it is not necessary to display and switch the operation plane area that has been conventionally required, and the operability of the three-dimensional figure is improved.

Next, with reference to FIGS. 2 to 10, two input surfaces which are the main features of the present invention, that is, the first input surface 12 will be described.
Then, the operation of the second input surface 13 will be described. Figure 2
FIG. 3 is an explanatory diagram showing an example of an operation on a first input surface and a second input surface in FIG. 1. As a method of setting the two input surfaces, that is, the first input surface 12 and the second input surface 13, first, as the first input surface 12, an arbitrary surface passing through the planned input position P ₀ is set. For example, as a plane parallel to the XY plane, the origin is
The expected input position P ₀ = (px ₁ , py ₁ , pz ₁ ) is used, and the first axis is u
₁ = (1,0,0), and sets the second axis v ₁ = a (0,1,0). Here, u ₁ = (1,0,0) and v ₁ = (0,1,0) are unit vectors, and form a surface area together with the origin (= the expected input position P ₀ ). Next, the second input surface 13 is the first input surface 12
And the origin is the same planned input position P ₀ = (px ₁ , py ₁ , pz ₁ ) as the first input surface 12 as a plane parallel to the Z-X plane. , The first axis is u ₂ = (0,0,
1) and set the second axis v ₂ = (1,0,0). in this way,
The first input surface 12 and the second input surface 13 share the planned input position P ₀ as their respective origins. The second input surface 1
3 does not have to be orthogonal to the first input surface 12 and need not be parallel to the first input surface 12. Further, as will be obtained as a result of the operation described below, the two input planes, the first input plane 12 and the second input plane 13, are changed according to the change of the planned input position P _{0 by} the user. It automatically moves following changes in P ₀ .

FIG. 3 is an explanatory diagram showing an example of the initial setting data stored in the expected input position storage section in FIG. FIG. 3A shows the setting data of the first input surface 12 in FIG. 2, in which the first axis is the X-axis direction data (1,0,
0), the second axis is set to the Y-axis direction (0,1,0). Further, FIG. 3B shows the setting data of the second input surface 13 of FIG. 2, and the data (0, 0,
1) and (1,0,0) with the second axis as the X-axis direction is set. Then, FIG. 3C shows the data of the planned input position P ₀ of FIG. 2, where x ₀ is the X coordinate value and y ₀ is the Y coordinate value.
However, z ₀ is set as the Z coordinate value. These data are input by the user via the keyboard 5 of FIG. 1, and are stored in the expected input position storage unit 9 of FIG. 1 by the input processing unit 8 of FIG.

FIG. 4 is an explanatory diagram showing an example of the operation setting data stored in the expected input position storage section in FIG. In this embodiment, the buttons are input and set by the respective buttons of the mouse 1 shown in FIG.
Shows the input data by the first button 1 in FIG.
Data a as the amount of lateral movement of the first input surface 12 of
₁ and data b ₁ as the vertical movement amount are set.
Further, FIG. 4B shows the input data by the second button 2 in FIG. 1, and the data a ₂ as the horizontal movement amount and the vertical movement amount on the second input surface 13 in FIG. Data b _{2 of} is set. And FIG.4 (c) is the 3rd of FIG.
The input data by button 3 is shown in FIGS. 4 (a) and 4 (b).
It controls the activation of output display based on the data shown in (1), and data "1" indicating an output instruction and data "0" indicating that nothing is operated are set. Operations on the first input surface 12 of FIG. 2 based on the respective button operations of the mouse 1 of FIG. 1 will be described with reference to FIG.

FIG. 5 is an explanatory view showing an embodiment of an operation relating to the position input operation according to the present invention of the three-dimensional drawing processing system in FIG. This figure shows the first button 1 of FIG.
3 shows a position movement operation on the first input surface 12 of FIG. 2 based on the operation of FIG. When the user specifies one point on the screen 11 in FIG. 1 by using the first button 1 in FIG. 1, as shown in FIG. 5A, based on the movement amount from the previous position to the current position, that is, , The contents of the expected input position storage unit 9 of FIG. 1 shown in FIG. 3C are changed according to the data shown in FIG. In the data of FIG. 4A, the movement amount is input as the horizontal direction a ₁ and the vertical direction b ₁ . Here, when the input movement amount is the same as the input unit length in the three-dimensional space, the planned input position P ₀ is changed based on the input movement amount as follows.

First, the first input surface 12 in FIG. 2 is the XY plane, which is the previous input surface 12a in FIG. 5 (b). That is, the origin is P ₀ = (px ₀ , py ₀ , pz ₀ ), u ₁ = (ux ₁ , uy ₁ ,, uz ₁ ) as the first axis, and v ₁ = (v
x ₁ , vy ₁ , vz ₁ ). In this embodiment, specific values of the unit vectors u ₁ and v ₁ are u ₁ = (1,0,0) and v ₁ = (0,
1,0). On the other hand, when the planned input position P ₀ is moved by the movement amount (a ₁ , b ₁ ), the result is P ₁ = (px ₁ , py ₁ , pz
₁ ), P ₁ is obtained by the following equation. P ₁ = P ₀ + a ₁ × u ₁ + b ₁ × v ₁ (1) When the input movement amount and the input unit length of the three-dimensional space are different, set a constant to match them. , The second and third terms of equation (1) should be multiplied. Now, when P ₁ is shown by each component value, it becomes as follows. px ₁ ＝ px ₀ ＋ a ₁ × ux ₁ ＋ b ₁ × vx ₁ ………… (2) py ₁ ＝ py ₀ ＋ a ₁ × uy ₁ ＋ b ₁ × vy ₁ ………… (3) pz ₁ ＝ pz ₀ ＋ a ₁ × uz ₁ + b ₁ × vz ₁ (4) Further, in the case where the unit vectors u ₁ and v ₁ are the above-mentioned numerical examples, they are as follows. px ₁ ＝ px ₀ ＋ a ₁ × ux ₁ ………… (5) py ₁ ＝ py ₀ ＋ b ₁ × vy ₁ ………… (6) pz ₁ ＝ pz ₀ ………… (7) This P ₁ Using the contents, the expected input position storage unit 9 of FIG.
Changing the content of means changing the planned input position P ₀ by the movement amount of the first button 1 in FIG. 1. As a result of this operation, the first input surface changes from the previous input surface 12a to the current input surface 12b, as shown in FIG. 5 (b). Then, the processing device 6 of FIG. 1 displays the expected input position P ₁ on the display device 7 of FIG. 1 using the changed contents of the expected input position storage unit 9 of FIG. 1.

On the other hand, when the user designates a point on the screen 11 in FIG. 1 by using the second button 2 in FIG. 1, the same procedure as in the case of using the first button 1 is performed. Using the amount of movement on the second input surface at, the planned input position P ₀
To change. For example, in the data of the second input surface 12 of FIG. 2, the origin is P ₀ = (px ₀ , py ₀ , pz ₀ ), and the first axis is u ₂ =
(Ux ₂ , uy ₂ , uz ₂ ), and v ₂ = (vx ₂ , vy ₂ , vz ₂ ) as the second axis
Is obtained, the movement amount of the second button 2 in FIG.
₂ , b ₂ ), the moved result is P ₂ = (px ₂ , py
₂ and pz ₂ ), P ₂ is obtained by the following equation. P ₂ = P ₀ + a ₂ × u ₂ + b ₂ × v ₂ (8) Further, the component values are as follows. px ₂ ＝ px ₀ ＋ a ₂ × ux ₂ ＋ b ₂ × vx ₂ ………… (9) py ₂ ＝ py ₀ ＋ a ₂ × uy ₂ ＋ b ₂ × vy ₂ ………… (10) pz ₂ ＝ pz ₀ ＋ a ₂ × uz ₂ + b ₂ × vz ₂ (11) Further, in the present embodiment, u ₂ = (0,0,1), v ₂ =
Since it is (1,0,0), each component value is as follows. px ₂ ＝ px ₀ ＋ b ₂ × vx ₂ ………… (12) py ₂ ＝ py ₀ ………… (13) pz ₂ ＝ pz ₀ ＋ a ₂ × uz ₂ ………… (14) Obtained here Changing the content of the expected input position storage unit 9 in FIG. 1 by using the value of P ₂ means that the expected input position P ₀ in FIG. 1 is changed by the movement amount of the second button 2. is there. Then, the processing device 6 of FIG. 1 displays the display of the planned input position P ₂ on the display device 7 of FIG. 1 using the changed contents of the planned input position storage unit 9.

In this way, if the display positions of the changed planned input positions P ₁ and P ₂ are at the desired positions, the user can press the third button 3 in FIG. As shown, the data of "1" is input. Based on this data input, the input processing unit 8 of FIG. 1 uses the contents of the planned input position storage unit 9 of FIG. 1, that is, the changed planned input position P ₁ ,
The value of P ₂ is output as the input position.

Next, the operation of the three-dimensional graphic processing system mainly including the operation of the input processing unit 8 of FIG. 1 will be described using a flow chart. FIG. 6 is a flow chart showing an embodiment of the operation of the three-dimensional graphic processing system in FIG. 1 according to the present invention. First, the initial value information input by the user is read via the keyboard 5 of FIG. 1, and the input processing unit 8 of FIG. 1 stores the contents of the planned input position storage unit 9 of FIG. That is, the expected input position P
₀ is set to the value of the initial value information, and the positions of the first input surface and the second input surface are set to the value of the initial value information (step 601). Then, the data from the user is input. When it is done (step 602), the input data is first shown in FIG.
It is checked whether or not the data is the data of the first button 1 in step (603). If it is the data of the first button, the first button of FIG.
Using the movement amount on the input surface 12, the contents of the planned input position storage unit 9 of FIG. 1 relating to the planned input position P ₀ are changed, and at the same time, the changed planned input position storage unit 9 of FIG. Using the contents, the expected input position (Fig. 1 and Fig. 5
(P ₁ ) in (b) is displayed on the display device 7 of FIG. 1 (step 604). If it is not the data of the first button,
It is checked whether the input data is the data of the second button 2 in FIG. 1 (step 605).

If it is the data of the second button, the second button of FIG.
Using the amount of movement on the input surface 13, the contents of the expected input position storage unit 9 of FIG. 1 are changed, and at the same time, the changed contents of the expected input position storage unit 9 of FIG. (P ₂ in FIG. 1) is displayed on the display device 7 in FIG. 1 (step 606). If it is not the data of the second button, it is checked whether the input data is the data of the third button 3 in FIG. 1 (step 607). If it is the data of the third button, the contents of the planned input position storage unit 9 of FIG. 1 at the present time, for example, the value of the planned input position P ₁ is output as the input position (step 608). If it is not the data of the third button, it is determined whether the input data is, for example, the change information of the input surface (first input surface and second input surface) via the keyboard 5 (step 609). If it is the change information of the input surface, either or both of the first input surface and the second input surface are changed according to the change information of the input surface. In this way, the user can easily input the position relating to the three-dimensional figure by operating at least three input buttons and operating on the three-dimensional space screen.

FIG. 7 is an explanatory diagram showing an embodiment of the operation according to the present invention of the three-dimensional graphic processing system in FIG. The present embodiment shows an operation for the vertex P ₀ of the triangular pyramid 14 displayed on the screen 11 of the display device 7 of FIG. For example, in FIG. 7A, when the user specifies the position of P ₃ using the first button 1 of the mouse 4 of FIG. 1, the input processing unit 8 of FIG. operation is determined that the the contents of the input expected position storage unit 9 of FIG. 1, P ₀
Change in P ₁ from, to display the P _1. At this point, if the user presses the third button in FIG. 1 and inputs “1”, this operation is related to the first input surface 12,
The triangular pyramid 14 becomes the triangular pyramid 15 having the shape shown in FIG. Further, when the user specifies the position of P ₃ using the second button 2 of the mouse 4 in FIG. 1, this operation is
This relates to the second input surface 13, and the triangular pyramid 14 becomes the triangular pyramid 16 having the shape shown in FIG. 7C. Further, when the user specifies the position of P ₃ using the first button 1 and the second button 2 of the mouse 4 in FIG. 1, this operation is
It relates to the first input surface 12 and the second input surface 13, and the triangular pyramid 14 has a triangular pyramid 17 having a shape shown in FIG. 7D.
Becomes

As described above with reference to FIGS. 1 to 7, in the three-dimensional graphic processing system of this embodiment, the XY plane and the ZX plane are parallel to each other and share the origin. Set the operation plane area (first and second input surfaces) to the first and
Assign to 2 buttons. This allows the user to
For position input on the −Y plane, the first button is used, and for position input on the ZX plane, the second button is used, and it is sufficient to specify on the display screen. Further, by assigning the third button on the mouse to control the activation of the display output operation, the user can operate the three-dimensional figure in the three-dimensional space with one hand. The present invention is shown in FIG.
~ It is not limited to the embodiment described with reference to FIG. For example, in the present embodiment, the mouse button is used as the position input unit, but the position input unit and the input device of the present invention include a plurality of position input units to which a plurality of operation plane areas are respectively assigned. It may be provided as long as it is provided, and is not limited to the mouse. Also, the mouse button is 3
It is not limited to individual pieces.

[0021]

According to the present invention, it is possible to simultaneously use a plurality of input plane areas, and to input an arbitrary position in a three-dimensional space by only inputting a moving amount on a plane operation surface. Can be performed easily and operability can be improved.

[0022]

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a configuration according to the present invention of a three-dimensional graphic processing system according to the present invention.

FIG. 2 is an explanatory diagram showing an example of an operation on a first input surface and a second input surface in FIG.

FIG. 3 is an explanatory diagram showing an example of initial setting data stored in an expected input position storage unit in FIG.

4 is an explanatory diagram showing an example of operation setting data stored in an expected input position storage section in FIG. 1. FIG.

5 is an explanatory diagram showing an example of an operation relating to a position input operation according to the present invention of the three-dimensional drawing processing system in FIG.

6 is a flowchart showing an embodiment of the operation of the three-dimensional graphic processing system in FIG. 1 according to the present invention.

7 is an explanatory diagram showing an example of an operation according to the present invention of the three-dimensional graphic processing system in FIG.

[Explanation of symbols]

 1 1st button 2 2nd button 3 3rd button 4 Mouse 5 Keyboard 6 Processing device 7 Display device 8 Input processing unit 9 Input expected position storage unit 10 Main control unit 11 Screen 12, 12a, 12b 1st input surface 13 2nd Input surface 14-17 triangular pyramid

Claims (1)

[Claims] 1. A three-dimensional graphic processing system for operating a position of a three-dimensional figure displayed in a three-dimensional space through an operation plane area, and at least a first three-dimensional figure displayed in the three-dimensional space. On a second operation plane that shares an origin with the first operation plane and is non-parallel to the first operation plane and the first button used for designating the destination of the position on the operation plane area of And a second button used for designating a movement destination of the position of the three-dimensional figure displayed in the three-dimensional space, and the first button and the second button of the position input means. The input means provided in the same housing is provided,
A three-dimensional graphic processing system, characterized in that a plurality of operation plane areas each having the same origin are assigned to respective buttons of the position input means.