JPS63293680A - Animation generating device for building perspective drawing - Google Patents

Abstract

PURPOSE:To generate a smooth animation by a visual point and a color change, by generating a perspective drawing data by a CAD system, processing it by an image processor and generating animation use data equivalent to one-picture. CONSTITUTION:A building perspective drawing is generated by a CAD system 1, and its perspective drawing data is inputted to a high speed image processor 11. In this high speed image processor 11, a motion definition data is inputted, and based thereon, the perspective drawing data is changed by a CPU 12 and an animation use data corresponding to one picture is generated, and displayed by a display means 15. Subsequently, by outputting the image information TS and a picture recording start signal RS to an image recorder 20 by a signal output means, image information equivalent to one-picture is recorded in the image recorder. By repeating it whenever the image information equivalent to one-picture is formed, a smooth animation is recorded in the image recorder 20.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention converts an architectural perspective drawing created using a CAD system into one screen worth of animation data according to desired motion definition data, and converts this into an image. The present invention relates to an architectural perspective drawing moving image creation device that creates a moving image based on architectural perspective drawing data by recording it in a recording device.

[Conventional technology]

Conventionally, various CAD systems or graphic processing workstations have been proposed in which a three-dimensional model of a perspective view is created and the model is colored by shading processing.

[Problem that the invention seeks to solve]

However, in the conventional CAD system mentioned above,
Although it is excellent for creating 3D models and forming color images, it has the problem that it takes time to change the viewpoint and color. It is possible to process changes at high speed, but there is a problem in that it takes time to create complex 3D models such as architectural perspective drawings, and architectural perspective drawings have tens of thousands of polygons. As a result, the amount of data when making changes becomes enormous, and it takes time to process changes such as changing the viewpoint position or changing one color, and it is not possible to form continuous smooth movements when displaying using real-time processing. There was a problem that it was not possible to obtain a good video.

On the other hand, there is a video creation method that creates video by creating data from perspective drawings, but in this case, it takes time to create the basic perspective drawing data and create the video using this data, and the creation There were problems such as increased costs.

Therefore, the present invention has been made by focusing on the problems of the above-mentioned conventional example, and by creating perspective drawing data with a CAD system and image processing this with an image processing device,
An architectural perspective drawing that allows you to create smooth animations by changing viewpoints and colors by creating animation data for one screen, converting this animation data to a television signal, and recording it on an image recording device. The purpose is to provide a video creation device.

[Means for solving problems]

In order to achieve the above object, the present invention provides a perspective drawing CAD system that creates architectural perspective drawings and outputs perspective drawing data, and a perspective drawing CAD system that receives the perspective drawing data and generates the perspective drawing data based on desired motion definition data. The image processing device includes an image processing device that converts the data for animation into data for animation, and an image recording device that records the data for animation from the image processing device for each screen, and the image processing device converts the perspective view data based on motion definition data. After performing the specified calculation processing, 1
an arithmetic processing means for forming animation data for a screen; a display means for displaying the animation data of the arithmetic processing means; an image information conversion means for converting the animation data into a television signal; and an image information conversion means. It is characterized by comprising signal output means for outputting a television signal and a recording start signal from the means to the image recording apparatus.

[Effect]

In this invention, an architectural perspective drawing consisting of a still image is created using a perspective drawing CAD system, and the perspective drawing data is inputted to an image processing device. Motion definition data such as the direction of light is input, and based on this data, the perspective view data is changed by the arithmetic processing means to create animation data corresponding to one screen. The animation data created in this way is displayed on the display means, the animation data is converted into, for example, an NTSC television signal by the image information conversion means, and the television signal and the recording start signal are sent to the image recording device by the signal output means. By outputting, the image information for one screen is recorded by the image recording device, and by repeating this every time the image information for one screen is formed, a smooth moving image is recorded on the recording medium of the image recording device. By reproducing this recording medium, it is possible to reproduce moving images with smooth motion.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, reference numeral 1 denotes a CAD system, which has a central processing unit 2, an auxiliary storage device 3 consisting of a tape unit or a disk unit is connected to the system bus, and a keyboard 5a is connected via a controller 4. 5. Graphic display with A tablet 6, digitizer 7, etc. are connected. Then, using the keyboard 5a of the graphic display 5, the tablet 6, and the digitizer 7, an architectural perspective view that is a three-dimensional model is created, and the surf ace data and color classification data are centrally processed as perspective view data. It is stored in the auxiliary storage device 3 connected to the device 2. Here, the color classification data is such that when coloring each surface in a perspective view, the surfaces to be given the same color are given the same, for example, alphabetical code,
This facilitates color classification when performing a color editor in image processing, which will be described later.

The perspective drawing data stored in the auxiliary storage device 3 is transmitted to the high-speed image processing device 1) via the high-speed data communication network 10.
sent to.

The high-speed image processing device 1) includes a central processing unit 12 and a tape unit connected to the system bus.

A keyboard 15 is connected to an auxiliary storage device 13 such as a disk unit, and a system bus via a controller 14.
a, graphic display 15 with mouse 15b;
It stores perspective view data transmitted via the high-speed data communication network 10 in the auxiliary storage device 13, and performs predetermined arithmetic processing based on the perspective view data and motion definition data input from the keyboard 15a. Create one screen worth of animation data by changing the viewpoint of the perspective view data, store it in the auxiliary storage device 13, display it on the graphic display 15, and use the created animation data, for example. Image information TS consisting of an NTSC television signal
and output it to the image recording device 20,
Recording start signal R3 that causes the image recording device 20 to start recording
is output to the image recording device 20 via the controller 21, and when a recording end signal RE is received from the image recording device 20 via the controller 21, arithmetic processing based on the next motion definition data is executed.

The image recording device 20 is composed of, for example, a frame-by-frame video tape recorder, and when the recording start signal R3 from the high-speed image processing device 1) is input, it records one screen worth of image information TS on a magnetic tape. , when the recording is finished,
A recording end signal RE is output to the high-speed image processing device 1).

Next, the operation of the above embodiment will be explained with reference to the flowcharts of FIGS. 2 and 3 showing the arithmetic processing procedure of the high-speed image processing apparatus 1).

First, a perspective view of a desired building is created using the keyboard 5a, tablet 6, and digitizer 7 in the CAD system 1, and its surf ace data and color classification data are stored in the auxiliary storage device 3 as perspective view data. .

The perspective view data stored in the auxiliary storage device 3 is then transmitted to the high-speed image processing device 1) via the high-speed data communication network 10 and stored in its auxiliary storage device 13. ' In this way 1. When the perspective view data is stored in the high-speed image processing device 1), the processing shown in FIG. 2 is executed by the central processing unit 12 of the high-speed image processing device 1).

That is, in step (2), a pre-stored processing menu is displayed on the display screen of the graphic display 15. Here, the processing menu includes color editor processing, smooth shading processing, animation data reproduction, animation data definition, motion image recording, etc., and these are selected using, for example, the mouse 15b.

Next, the process moves to step ■, and it is determined whether or not smooth shading processing is selected. If this is selected, the process moves to step ■, and a process that indicates that smooth shading processing is selected is performed. Flag F
After setting SM to "1', the process proceeds to step (2), and if smooth shading processing is not selected, the process directly proceeds to step (2).

In this step ■, it is determined whether shadow processing is selected, and if it is selected, the shadow processing is selected.
Move to knob ■ and set the processing flag FSH, which indicates that shadow processing has been selected, to "1", then step ■
, and if shadow processing is not selected, the process moves directly to step (3).

In this step ■, it is determined whether or not color editor processing is selected, and if it is selected, the process moves to step ■ to execute color editor processing, and then moves to step ■, where color editor processing is selected. When no process is selected, the process directly proceeds to step (3). Here, in the color editor process, the perspective view data stored in the auxiliary storage device 13 is
5 on the display screen, and by hitting the part you want to change the color with a light pen etc., you can change the color between red (R) and green (G).
), change the color by operating the blue (B) color bar. Note that the color change is not limited to the RGB method, but can also be performed using the HLS method that adjusts saturation, brightness, and hue.

In step (2), animation data creation processing is executed and then the processing is terminated.

As shown in FIG. 3, the animation data creation process outputs guide information prompting the input of motion definition data in step (2), and then determines whether motion definition data has been input in step @. Here, the motion definition data determines the viewpoint position, visual direction, viewing angle, light source position, and movement speed. Among these, the movement speed is an arbitrary set number m at a predetermined interval in the movement direction (for example, By setting a number of points P (10 points) and dividing the area between these points into an arbitrary set number n of division points, it is possible to obtain a movement speed corresponding to the division number n. That is, when the number of divisions n is small, the number of times of processing between points is reduced and the movement speed becomes faster, and when the number of divisions n is large, the movement speed becomes slower.

If the determination result in step 0 is that no motion definition data has been input, the process waits until the data is input, and when the data is input, the process moves to step (2).

In this step 0, the number of points P is set to "1" and the number of divisions is set to "1", respectively, and then the process moves to step @.

In this step [phase], the perspective view data at the position of the number of points M and the number of divisions N is subjected to coordinate transformation etc. based on the motion definition data set in step 0 and the perspective view data stored in the auxiliary storage device 13. In addition to calculating by calculation, by referring to the processing flags FSM and FSH, when the processing flag FSM is set to "1", smooth shading processing is performed on the calculated perspective view data, and the processing flag FSH is set to "1". When set to , shadow processing is performed to create a shadow when a building is irradiated with light, and the result is stored in a predetermined storage area of the auxiliary storage device f13 as animation data.

Next, the process moves to step (3) to read the animation data stored in the auxiliary storage device 13 and display it on the display screen of the graphic display 15, and then moves to step [phase] to read the animation data stored in the auxiliary storage device 13 and display it on the display screen of the graphic display 15. Determine whether data reproduction is selected. When animation data playback is selected,
Jump to step [phase] described later, and if animation data playback is not selected, step O
to move to.

In this step O, the animation data stored in the auxiliary storage device 13 is read out and is stored in the NT
After converting into an SC television signal and outputting it to the image recording device 20, the process moves to step [phase], and a recording start signal R3 for the image recording device 20 is output to the controller 21.

When this recording start signal R3 is input to the controller 21, the controller 21 puts the image recording device 20 into a recording state and records the television signal of animation data on, for example, a magnetic tape.

Next, the process moves to step [phase] to determine whether or not the recording end signal RE is input from the image recording device 20. If the image recording device 20 is recording and the recording end signal is not input, the recording end signal is input. When the image recording device 20 finishes recording one screen, the image recording device 20 outputs a recording end signal RE, thereby moving to step [phase].

In this step [phase], the number of points P becomes the set number m,
In addition, it is determined whether the number of divisions has reached the set number n, and P-
When it is 4m or D-#n, move to step ■,
Add "1" to the number of divisions, and when the number of divisions reaches n, add the number of points P by 1'°, then return to step ■, and the number of points P becomes m and the number of divisions increases. The above process is repeated until n is reached, and the television signal based on the calculated animation data is sequentially recorded one frame at a time on the image recording device 16.

When P=m and D=n are reached, the process moves from step [phase] to step (2), and it is determined whether or not to end the animation data creation process. This determination is made, for example, by determining whether or not a predetermined end key on the keyboard 15a has been pressed. If the end key has not been pressed, the process returns to step 0 to prompt the input of new motion definition data, and when the end key is pressed. When this happens, the animation data creation process ends.

In the above processing shown in FIG. 3, the processing in steps ① to @ corresponds to the arithmetic processing means, the processing in step ① and the graphic display 14 correspond to the display means, and the processing in steps 0 to ＠ corresponds to the display means.
[Phase] processing corresponds to the signal output means.

In this way, when the image recording device 20 finishes recording the animation data on the magnetic tape, the recorded magnetic tape is set in the video editing machine and a title is inserted.
A master tape is created by adding sound, editing, etc., and this master tape is dubbed to create a magnetic tape on which a moving image is recorded.

When the video created in this way is played back, it becomes a moving architectural perspective view, so it is easy to imagine the space at the design stage, and it is especially useful for building owners who do not have an architectural background to predict the result. In addition to making it easier for designers to confirm their own images, it also facilitates communication between designers and building owners when considering design proposals. It is now possible to simulate the inside of an object from the level of the human eye, and the production cost is approximately 1) 5. It was possible to reduce the amount to about 1/10 or less.

In the above embodiment, the processing menu in the high-speed image processing device 1) is smooth shading processing, shadow processing, animation data reproduction processing, and color editor processing, but the processing menu is not limited to this. Display model selection that allows you to select the type of model to be displayed from surface model, wire frame model, or depth skewing display of wire model, and define counterclockwise to speed up real-time display. Pack facing processing that does not display the side (back side) that is displayed, and the brightness of the surface is changed in real time by manipulating the vector of parallel rays using latitude and longitude to determine the brightness of each surface. Any processing such as parallel ray vector manipulation for flat shading, line-of-sight movement processing, and hidden surface processing using a Z buffer can be performed.

Further, in the above embodiment, a case has been described in which perspective drawing data from a CAD system is transmitted to the high-speed image processing device 1) via the high-speed data communication network 10, but the present invention is not limited to this. Or is it a high-speed image processing bag by setting the disk in a tape unit or disk unit installed in a high-speed image processing device? &1)
You may also load it into .

Further, in the above embodiment, a case has been described in which a video tape recorder is used as the image recording device, but a laser disk recording device can be applied instead, and any image recording device that can be played back can be applied. be able to.

(Effects of the Invention) As explained above, according to the present invention, architectural perspective drawing data created with a CAD system is processed for animation based on motion definition data such as viewpoint position, viewing angle, and movement speed using an image processing device. By converting it into data and recording this animation data screen by screen with an image recording device, you can easily create videos of perspective drawings with a huge number of polygons, such as architectural perspective drawings, with smooth movements. Moreover, since the perspective view data is created using a CAD system, it can be created quickly, and the animation data for this perspective view data is created using an image processing device, so detailed animation data can be easily created. Effects such as being able to do this can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts showing an example of a processing procedure in a high-speed image processing apparatus. In the figure, 1 is a CAD system, 2 is a central processing unit, 3 is an auxiliary storage device, 5 is a graphic display, 1) is a high-speed image processing device, 12 is a central processing unit, 13 is an auxiliary storage device, and 15 is a graphic display , 20 is an image recording device, and 21 is a controller.

Claims (4)

[Claims] (1) A perspective drawing CAD system that creates architectural perspective drawings and outputs perspective drawing data, and an image processing device that receives the perspective drawing data and converts the perspective drawing data into animation data based on desired motion definition data. and an image recording device that records animation data from the image processing device for each screen, and the image processing device performs predetermined arithmetic processing on the perspective view data based on motion definition data to record the animation data for each screen. arithmetic processing means for forming animation data for minutes, display means for displaying the animation data of the arithmetic processing means, image information conversion means for converting the animation data into a television signal, and the image information conversion means An apparatus for creating a moving image of an architectural perspective view, comprising signal output means for outputting a television signal and a recording start signal from the image recording apparatus to the image recording apparatus. (2) The perspective drawing CAD system outputs the surface data and color division data of the perspective drawing as perspective drawing data, and the image processing device performs a color editor including translucency by selecting a desired color. An apparatus for creating a moving image of an architectural perspective view according to claim 1. (3) The apparatus for creating a moving image of an architectural perspective view according to claim 1 or 2, wherein the image processing apparatus performs graphic processing such as smooth shading using its arithmetic processing means. (4) The apparatus for creating a moving image of an architectural perspective view according to any one of claims 1 to 3, wherein the image recording apparatus is a video tape recorder capable of taking frame-by-frame recording.