JPH0241567A - Drawing management system - Google Patents

Abstract

PURPOSE:To shorten the time required for transmission of graphic information by receiving graphic information of only a part to be subjected to update processing and taking out and synthesize graphic information of only a part which is not subjected to update processing from storage means. CONSTITUTION:When graphic information stored in a drawing management system is subjected to update processing by a CAD system 1, only graphic information of the layer subjected to update processing is transmitted from the CAD system 1 to the drawing management system. In the drawing management system, graphic information of layers which are not subjected to update processing out of graphic information related to received graphic information is taken out from a storage means 7 and is synthesized with graphic information of the layer subjected to update processing to generate all graphic information after update processing. This graphic information is converted to picture information and is stored in the storage means 7 together with graphic information of the layer subjected to update processing. Thus, the time required for transmission of drawings to the drawing management system is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a drawing management system that stores and manages drawings created by a computer-based drawing creation device (hereinafter referred to as a CAD system) as image information.

(b) 9t. Next Technology Recently, image information storage devices that sequentially store large amounts of image information such as drawings and the like have been put into practical use.

Such image information storage devices perform image input by optically scanning the original image (for example,
(Details in Japanese Patent Publication No. 62-26035).

If you want to store drawings created by a CAD system as image information using the above-mentioned image information storage device,
- First, a drawing must be printed using a plotter printer connected to a CAD system, and this drawing (original drawing) must be read optically to input an image. Therefore, the input image information has a problem of deterioration such as distortion and distortion compared to the original image.

Therefore, in Japanese Patent Application No. 62-277901, the present applicant has proposed a drawing management system that receives graphic information online from other devices, converts it into image information, and stores it.

(C) Problems to be Solved by the Invention In a CAD system, even if the drawings are stored in the drawing management system, a certain amount of the drawings are stored in the internal storage device (for example, a floppy disk or magnetic tape). Although it is possible to perform update processes such as corrections and edits later, the drawings to which update processes such as corrections and edits have been added are new, and therefore, there may be cases where update processes such as corrections and edits are necessary. However, it is necessary to send all the data of the drawings again to the drawing management system after performing update processing such as corrections and editing. Then, in the drawing management system, drawings that have undergone update processing such as correction or editing must be stored again.

In such a case, it takes a lot of time to send all the data of the drawing after update processing such as corrections and edits to the drawing management system again. By re-storing the drawings that have been updated, the optical disk used as the storage device of this system will be wasted.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to shorten the time it takes to send drawings that have undergone update processing such as corrections and edits in other devices to a drawing management system, and to suppress wastage of optical disks in the drawing management system. .

(d) Means for Solving the Problems The drawing management system of the present invention includes a transmitting/receiving means for transmitting and receiving graphic information with other devices, a converting means for converting the graphic information to image information, and a drawing management system for transmitting and receiving graphic information to and from other devices. A storage means for storing image information in association with each other, and a synthesis means for synthesizing the graphic information received by the transmitting/receiving means and the graphic information stored in the storage means, the graphic information being stored in the storage means. When the information is updated by the above-mentioned equipment, the transmitting/receiving means receives the graphic information of only the updated part, and the synthesizing means stores the graphic information of only the part that has not been updated. The feature is that the graphic information of the portions that have not been updated and the graphic information of the portions that have been updated are synthesized.

(E) Function Generally, in a CAD system, graphic information is divided into multiple layers and managed according to the pen number of the plotter printer connected to it, and the graphic information is processed for each layer. can do.

The present invention utilizes the characteristics of this CAD system, and when the CAD system updates the graphic information stored in the graphic management system, only the graphic information of the updated layer is Send it from the system to the figure management system. Then, in the drawing management system, among the graphic information related to the received graphic information, the graphic information of the layer that has not been updated is retrieved from the storage means, and this is combined with the graphic information of the layer that has been updated. All of the graphic information that has undergone the update process is generated, and after converting this graphic information into image information, it is stored in the storage means together with the graphic information of the layer that has undergone the update process.

(f) Embodiment FIG. 1 is a block diagram showing an embodiment of the present invention.
1) is a CAD system for creating graphic information that constitutes one drawing, (2) is a plotter printer that inputs the graphic information created in CAD system (1) and draws the drawing, and (3) is a transmitting/receiving unit that sends and receives graphic information to and from the CAD system (1), and this transmitting/receiving unit (3)
) receives from the CAD system (1), as shown in FIG. Furthermore, it has a header indicating the number and type of layers, etc. (4) is a file section that temporarily stores the graphic information sent and received by the transmitting/receiving section (3), and (5) is a file section that divides the graphic information read from the file section (4) into each layer. (4) This is a graphic information division/synthesis unit that combines graphic information read out from FIG. As shown in the figure, each layer is divided into layers with a header added. (6) is a vector raster conversion unit that converts graphic information into image information;
7) is an image memory that temporarily stores the image information from the vector raster conversion unit (6) or the graphic information from the graphic information division/synthesis unit (5), and (8) is the recording of graphic information or image information on the optical disk (9). The optical disc unit (10) that performs playback is an optical disc unit (8) that plays an optical disc (9).
), a printer that prints the image information reproduced from ( )1
) is a keyboard for inputting various instruction signals and additional information regarding image information, and (12) is a control unit for controlling the operation of each part.

In this configuration, graphic information output from the CAD system (1) is received by the transmitter/receiver (3) in the form shown in FIG. The transmitting/receiving section (3) writes the received graphic information to the file section (4) every time it is received. Then, the transmitting/receiving section (3) transfers the received graphic information to the graphic information dividing/combining section (5). The graphic information division/synthesis unit (5) divides the transferred graphic information into layers as shown in Figure 3, adds a header to each layer, writes it to the image memory (7), and performs vector/raster conversion. Transfer to section (6). A vector raster converter (6) converts graphic information into image information and writes this into an image memory (7).

In this state, when additional information such as a title, keyword, creation date, etc. for the image information is input from the keyboard (11), the control section (12) transmits the additional information to the optical disk section (8) and stores it in the image memory (7). The optical disc unit (8) is instructed to write the stored graphic information and image information onto the optical disc (9). The optical disc (9) is divided into an area for storing additional information, an area for storing graphic information, and an area for storing image information.
writes each piece of information to the corresponding area. At this time, the storage addresses of the graphic information and the image information on the optical disc (9) are associated with and attached to the additional information and stored on the optical disc (9). In this way, one storage operation is completed. This operation is performed on all of the graphic information received and stored in the file section (4).

On the other hand, when update processing is performed on the seventh layer (LAY7) of the graphical information (for example, the information shown in FIG. 2) stored on the optical disk (9) in this way, the transmitting/receiving unit 0 Graphic information of only the updated layer (LAY7') is received.

Based on instructions from the control unit (12), the optical disc unit (8) retrieves the graphic information of the layer (LAYO-LAY6) that has not been updated from the graphic information including LAY7° from the optical disc (9), and stores it in the image memory. Write in (7). Furthermore, this LAYO-LAY6 graphic information is transferred to the graphic information division/synthesis section (5). As a result, the graphic information division/synthesis unit (5) combines the graphic information of LAY7° and the LA
It combines the graphic information of YO-LAY6 and transfers it to the vector/raster converter (6), and writes the graphic information of LAY7' to the image memory (7). Vector raster converter (6
) converts figure information to image information and stores this in image memory (
7).

The graphic information (i.e., LAY7') and the image information (i.e., LAYO to LAY6) stored in the image memory (7) in this way
and LAY 7') is stored on the optical disc (9) in association with the graphic information and image information (i.e., information from LAYO to LAY 7) previously stored on the optical disc (9) before updating. written. At this time, LA
The graphic information of Y7 and the image information of LAYO-LAY7 may be made unreadable from now on.

(G) Effects of the Invention According to the present invention, when the graphic information stored in the storage means is updated by another device, the transmitting/receiving means receives only the updated part of the graphic information. , the compositing means retrieves the graphic information of only the part that has not been updated from the storage means, and combines the graphic information of the part that has not been updated with the graphic information of the updated part, so that the graphic information is transmitted. It is possible to reduce the amount of time required to update the drawings, and to suppress wastage of storage means for re-storing drawings that have undergone update processing such as correction and editing.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 and 3 are schematic diagrams showing an example of graphic information. (1)...CAD system, (3)...transmission/reception unit,
(5)...Graphic information division/synthesis unit, (6)...Vector raster conversion unit, (9)...Optical disc.

Claims (1)

[Claims] (1) A transmitting/receiving means for transmitting and receiving graphical information with other devices, a converting means for converting the graphical information into image information, a storage means for storing the graphical information and the image information in association with each other, and a transmitting/receiving means for the transmitting and receiving means. and a synthesizing means for synthesizing the graphic information received by the device and the graphic information stored in the storage device, and when the graphic information stored in the storage device is updated by the other device. , the transmitting/receiving means receives the graphic information of only the updated part, and the synthesizing means retrieves the graphic information of only the unupdated part from the storage means, and combines the graphic information of the unupdated part with the graphic information of the unupdated part. A drawing management system characterized by compositing graphic information of updated parts.