JP3572779B2 - Position angle change input device in one view - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to the field of computer graphics.
[0002]
[Prior art]
Conventionally, to perform operations such as translation and rotation in a three-dimensional space, three views are used, and in each of three views, a view viewed from the front, a view viewed from the top, and a view viewed from the side. It could be translated or rotated.
[0003]
[Problems to be solved by the invention]
In recent years, game consoles that have been released one after another are inexpensive, have considerable three-dimensional image display capabilities, and have sufficient capabilities as a CAD device platform. However, low resolution is a problem.
[0004]
Since the resolution is low, a three-view drawing cannot be drawn with sufficient accuracy, which is not practical.
[0005]
In view of the above-described problems, the present invention considers the parallel movement in each of three views of a view viewed from the front, a view viewed from the top, and a view viewed from the side, as was conventionally performed in a three-view view only in a one-view view. , To enable the operation of rotation.
[0006]
[Means for Solving the Problems]
The present invention has the following configuration to achieve the above object.
[0007]
If the shape data to be translated or rotated on the image displayed on the image display device is specified by input means capable of specifying a position in the image, the position is converted into a position in a three-dimensional coordinate space, and the position is An auxiliary plane having a certain width centered on is drawn on the image.
[0008]
There are three directions of the auxiliary plane, which are directed to the directions displayed in the three views, and these can be switched and displayed.
[0009]
When the user changes the position on the auxiliary plane displayed on the image display device, the position change is obtained by the means for detecting the position change fee, and the amount of change is converted into the amount of change on the auxiliary plane. Then, according to the amount of change, translation and rotation can be performed only in a direction parallel to the auxiliary plane.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the present invention, it is possible to perform a parallel movement and a rotation operation in the same manner as in the case of using the three-view drawing even in the one-view drawing by the above-described configuration.
[0011]
Hereinafter, a position angle change input device in one view of one embodiment of the present invention will be described with reference to the drawings.
[0012]
For simplicity of description, the coordinate space is assumed to be a three-dimensional orthogonal coordinate space XYZ, and a device for designating a position in the image display device and a means for detecting an amount of change in position use a mouse.
[0013]
FIG. 1 is an explanatory view showing a case where an auxiliary plane figure Fzx parallel to the ZX plane is displayed in the embodiment of the first aspect.
[0014]
In FIG. 1, reference numeral 101 denotes a three-dimensional orthogonal coordinate space XYZ, and reference numeral 102 denotes shape data to be translated.
[0015]
Reference numeral 103 denotes a translation destination, reference numeral 104 denotes an auxiliary plane figure Fzx, reference numeral 105 denotes a mouse whose position is designated, and reference numeral 106 denotes a moving direction of the mouse.
[0016]
When the shape data 102 is clicked on with the mouse 105, an auxiliary plane figure Fzx 104 appears, and translation can be performed. At this time, when the mouse is moved as indicated by 106, the position specified by 105 is interpreted as being translated on the auxiliary plane figure 104, and the shape data 102 is translated in such a way as to obtain such a result. Shall be.
[0017]
In this case, the position designated at 105 first does not come out of the auxiliary plane figure Fzx104, so that only parallel movement parallel to the auxiliary plane figure Fzx104 is allowed, and vertical movement is not allowed.
[0018]
FIG. 2 is an explanatory diagram when the auxiliary plane figure is switched. It is the same as FIG. 1 except that the auxiliary plane figure is changed to a plane Fxy parallel to the XZ plane. FIG. 3 shows that the auxiliary plane figure is switched to a plane Fyz parallel to the YZ plane.
[0019]
As shown in FIGS. 1 to 3, by switching the auxiliary plane figure to an appropriate direction and moving the position selected on the auxiliary plane figure using a mouse, the entire shape data is made to be the same in the direction. Since the translation can be performed, it is possible to perform the translation that is prohibited from moving in a direction perpendicular to a specific plane.
[0020]
As a result, the same effect as that of the conventional parallel movement using the three views can be obtained.
[0021]
FIG. 4 is an explanatory view showing a case where an auxiliary plane figure Fzx parallel to the ZX plane is displayed in the embodiment of the second aspect.
[0022]
In FIG. 4, reference numeral 401 denotes a three-dimensional orthogonal coordinate space XYZ, and reference numeral 402 denotes shape data to be rotated.
[0023]
Reference numeral 403 denotes a result of rotation, 404 denotes an auxiliary plane figure Fzx, 405 denotes a mouse whose position is designated, and 406 denotes a locus of moving the mouse.
[0024]
When considering a circle on the auxiliary plane figure Fzx centered on the position selected first and passing the current position of the mouse, all the movements of the mouse in the radial direction are ignored.
[0025]
The movement in the circumferential direction is converted into an angle, and the shape data 402 is rotated by the angle.
[0026]
Therefore, when the mouse is turned in the circumferential direction, the shape data 402 rotates with the mouse around the position specified first.
[0027]
This makes it possible to realize rotation in a specific direction corresponding to the three views with a simple interface.
[0028]
FIG. 5 is an explanatory view showing a case where an auxiliary plane figure Fzx parallel to the ZX plane is displayed in the embodiment of the third aspect.
[0029]
In FIG. 5, reference numeral 501 denotes a three-dimensional orthogonal coordinate space XYZ, and reference numeral 502 denotes shape data to be rotated.
[0030]
Reference numeral 503 denotes the result of rotation, 504 denotes an auxiliary plane figure Fzx, 505 denotes a mouse whose position is designated, and 506 denotes a locus for moving the mouse.
[0031]
The difference from claim 2 described in FIG. 4 is that the center of rotation is not the position selected first, but the center of rotation locally determined by the shape data 502 is adopted as the center of rotation. .
[0032]
Therefore, in general, since the position selected first is not on the auxiliary plane, the mouse is once moved to an arbitrary position on the auxiliary plane, and the designation of rotation is started therefrom.
[0033]
【The invention's effect】
As described above, according to the present invention, translation and rotation can be designated even in a one-plane view as in a three-plane view, and the practical effect is large.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an auxiliary plane figure Fzx parallel to a ZX plane according to an embodiment of the present invention; FIG. 2 is an auxiliary plane parallel to an XY plane in the embodiment; FIG. 3 is an explanatory diagram when a graphic Fxy is displayed. FIG. 3 is an explanatory diagram when an auxiliary plane graphic Fyz parallel to the YZ plane is displayed in the embodiment. FIG. FIG. 5 is a diagram illustrating an auxiliary plane figure Fzx parallel to the ZX plane in FIG. 5. FIG. 5 is a view illustrating an auxiliary plane figure Fzx parallel to the ZX plane in the embodiment according to claim 3 of the present invention. [Description of the symbols]
101 Three-dimensional rectangular coordinates XYZ
102 Shape data to be translated 103 Result of translation of shape data 104 Auxiliary plane figure Fzx
105 Mouse cursor (position specified first)
106 locus 201 for moving mouse cursor 3D rectangular coordinates XYZ
202 Shape data to be translated 203 Result of translation of shape data 204 Auxiliary plane figure Fxy
205 Mouse cursor (first specified position)
206 Trajectory 301 for moving the mouse cursor Three-dimensional rectangular coordinates XYZ
302 The shape data to be translated 303 The result of the translation of the shape data 304 The auxiliary plane figure Fyz
305 Mouse cursor (position specified first)
306 Trajectory 401 for moving mouse cursor 3D rectangular coordinates XYZ
402 Shape data to be rotated 403 Result of shape data being rotated 404 Auxiliary plane figure Fzx
405 mouse cursor (first specified position)
406 locus 501 for moving mouse cursor 3D rectangular coordinates XYZ
502 Shape data to be rotated 503 Result of shape data being rotated 504 Auxiliary plane figure Fzx
505 Mouse cursor (position specified first)
506 Path to move the mouse cursor

Claims (2)

A shape data which is arranged in a three-dimensional coordinate space XYZ and is subjected to an operation of changing an angle, a three-dimensional computer graphic image generation part capable of displaying the shape data and other geometric figures, and a generation of the image generation part An image display device that displays the image, an input device that can specify a position in the image on the image display device, and a unit that detects a position change amount of the input device on the image display device, When a position on the shape data image drawn by a computer graphic image is designated by the input device, three-dimensional coordinates of the shape data corresponding to the position are calculated, and the position is centered on the ZX plane. An auxiliary plane figure Fzx which is parallel and has a constant spread, or an auxiliary plane figure which is parallel to the XY plane and has a certain spread around the position xy or drawn by a user's selection of one of the auxiliary plane figure Fyz with parallel and uniform spread Y-Z plane about said position, said on the image of the auxiliary plane on the image display device When the position of the input device is changed, three-dimensional coordinates are determined from the position of the auxiliary plane, and the three-dimensional coordinates are present on the auxiliary plane centering on the selected position of the shape data to be operated for changing the angle. In addition, when considering a circle passing through the three-dimensional coordinates on the auxiliary plane, the target of the operation of changing the angle so that the movement component in the tangential direction of the circle matches the tangential component of the circle of the position change of the input device. angle change input device and wherein the rotating moving becomes the shape data. 2. The angle change input device according to claim 1 , wherein a rotation center of the shape data is replaced with a rotation axis uniquely defined by the shape data from a position selected by the input device.

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