JP2819899B2 - Drawing management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing management system for digitally managing facility drawings such as water and gas piping systems, electric and telephone wiring systems, and the like.

[0002]

2. Description of the Related Art Conventionally, the status of facilities such as pipes for water, gas, electricity, telephones and the like, wiring systems and the like is managed using drawings drawn on paper or polyester film. At this time, if a change occurs in the facility, it is necessary to correct the drawing.
All drawing corrections must be done manually.
It requires a lot of labor and time, and has a problem that the rate of erroneous writing is high. To solve this problem, for example, as described in Japanese Patent Application Laid-Open No. 63-254565, in order to convert facility drawings into digital information and manage them, a large number of facility drawings (topographic maps) stored in a file device are required. , System diagram, symbol diagram, etc.) are displayed on a display device on a monitor. Also, the work of correcting the drawing is displayed on the display device.

[0003]

The number of digital data in a drawing is increased due to modification lines and the like, and all data in one drawing becomes large. The process of displaying the drawing on the display device is slow because the drawing amount per unit time is large. Even when only a part of the drawing information is required, all the drawing data is displayed, including small and detailed character information that makes decoding difficult. For this reason, it takes a lot of time to display the necessary drawings, and there is a problem in the usability and efficiency. In order to solve such a problem, there is a demand for quick display because only the drawing information in the range required by the user is sufficient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a drawing management apparatus capable of quickly displaying drawing information having a degree of detail required by a user. Is to do.

[0005]

SUMMARY OF THE INVENTION According to the present invention, priorities are set in a hierarchy of drawing information which is digitized and divided into a plurality of hierarchies and stored, and can be displayed within a limited display processing time. The drawing information of the hierarchy is displayed.

[0006]

Since the drawing information which can be displayed within the limited display processing time among the plurality of layers is displayed, the required drawing can be quickly displayed.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a basic configuration diagram of a drawing management apparatus according to an embodiment of the present invention.

In FIG. 2, facility drawing data is stored in a file device 203. Facility drawing data includes figure data such as topographic maps and pipeline maps, town names related to figures,
There are attribute data such as personal names, pipe diameters, pipe types, etc., represented by characters and numerical values. The stored graphic data is input from a drawing input device 204 which scans a drawing drawn on paper at regular intervals, converts the drawing into gray-scale gradations in accordance with the shading of the read data, obtains a digital image, and obtains coded data. The facility drawing is composed of a plurality of drawings as shown in FIG. 3A, and each is divided to create a graphic data file. The graphic data is shown in an orthogonal coordinate system as shown in FIG. 3B, and the lengths X ₀ and Y ₀ in the X and Y axis directions are determined by the drawing size. These graphic data have a data storage structure hierarchically separated from roads, house frames, and pipelines as shown in FIGS. These data are superimposed on each layer as necessary to form graphic data as shown in FIG. On the other hand, the attribute data is stored in a file device 2 using a data input device 208 such as a keyboard 206 or a floppy disk capable of collectively inputting data.
Enter 03. The operator (user) uses the mouse 207
In order to display a drawing on the display device (CRT) 205 by operating the mouse, the operator first operates the mouse 207 to move the cursor CU to an icon for selecting a function displayed on the CRT screen and designate it. . When the “drawing search” icon is designated, the central processing unit (CPU) 201 searches for the corresponding drawing data (graphic data and its attribute data) from the file device 203 and temporarily stores it in the main memory 202. The main memory 202 has a function of storing a program for executing processing such as search and editing of screen data and data being processed. The drawing data temporarily stored in the main memory 202 is displayed on the CRT 205 after the data is edited by the CPU 201 in accordance with the effective display coordinates which are the display area of the CRT 205. The operator can know the contents of the target drawing from this display screen.
In order to grasp a detailed part, the part is enlarged and displayed. For this purpose, for example, the cursor C
By moving U, a rectangular arbitrary area is designated from both ends on the diagonal line from the CRT display area and enlarged or reduced to an arbitrary magnification. Specifically, part of the corresponding drawing data stored in the main memory 202 is enlarged / reduced and edited via the CPU 201 and displayed on the CRT 205.

Next, display of a desired drawing within a target time will be described.

FIG. 1 shows a main part of an embodiment of the present invention, and shows an example of a hierarchical display processing with priority of the CPU 201. As shown in FIG.

Referring to FIG. 1, a display screen 101 includes a mouse operation icon area 102 for selecting a function for searching and displaying a target drawing, and a drawing display area 103 for displaying a drawing searched by the mouse operation. I have. The mouse 207 is a mouse operation icon area 102
The keyboard 206 is used for setting a drawing search condition, and the keyboard 206 and the mouse 2 are used to select a function from the user and to specify the position of the drawing displayed in the drawing display area 103.
07 is input to the operation input unit 104 in the CPU 201. Drawing data is stored in the file device 203.

Next, the relationship between the operation of each functional unit in the CPU 201, operation and display will be described.

When a target drawing is searched, a drawing is searched from an index diagram or a drawing number is searched and a drawing is displayed. The operation of the CPU 201 in this display process will be described. First, “drawing search” is selected from the mouse operation icon area 102 with the mouse 207. This selection instruction is input to the operation input unit 104 and the priority display control unit 105
Start The priority display control unit 105 instructs the figure search unit 106 to search for a target drawing. First, when the drawing data is retrieved by the graphic retrieval unit 106, the priority display processing unit 107 is started. At this time, the amount of data that can be displayed within the display processing time set by the user in advance is calculated and given to the priority display processing unit 107. Figure search unit 1
In step 06, drawing data is retrieved from the drawing file in the file device 203 according to the target drawing number, and the main memory 2 is searched.
02, and sends a signal to the priority display processing unit 107 when all search is completed. The priority display processing unit 107 fetches the drawing data from the main memory 202 and sequentially provides the display editing unit 110 with the graphic data of the hierarchy to be displayed based on the display priority table shown in FIG.
The display edit processing unit 110 draws in the drawing display area 103 based on the drawing data. FIG. 5 is a display priority table in which the layer numbers of the layers and their priorities are stored. Here, it is assumed that the smaller the number is, the higher the priority is.

FIG. 6 shows an example of a drawing display for each display priority.

FIG. 6A is a drawing 6 when the display priority is 1.
In this example, a hierarchy group such as a road 64, a distribution pipe 65, and a symbol 66 on a distribution pipe, which are the most important figures in the drawing, is displayed. FIG. 6B is a display example of the drawing 62 when the display priority is 2, and the house frame hierarchy 67 is displayed so as to overlap the graphic data with the display priority 1. FIG.
(a) is a display example of the drawing 63 when the display priority is 3;
The hierarchy relating to the water supply device 68 is displayed over the graphic data of the display priorities 1 and 2.

FIG. 7 is a diagram showing a processing flow of the priority display control unit 105.

In FIG. 7, first, in block 701, a displayable data amount _Dmax is calculated for a preset display processing time t. This calculation formula is as follows.

D _max = t × D ₀ (1) D _max : maximum displayable data amount for display time t t: set display time t D ₀ : data display amount per unit time In block 702, priority i is set. The display data amount of the corresponding hierarchy is calculated, and a data display request of priority i is sent to the priority display processing unit 107 in block 703. Block 704
Then, the total display data amount up to the priority i is calculated and compared with the maximum data amount that can be displayed. If the total data amount is within the maximum data amount, the next display priority i + 1 is repeatedly executed as described above.

FIG. 8 shows a processing flow of the priority display processing unit 107. First, in block 801, a search is made for a hierarchy corresponding to the priority i from the display priority table. In block 802, the display data for the corresponding hierarchy is searched by the graphic search unit 106, and the result is output to the graphic editing unit 110.

In this manner, since only the graphic data corresponding to the retrieval time designated in advance can be automatically selected, high-priority drawing data can be quickly retrieved without being affected by the complexity of the drawing.

Next, a case will be described in which, when a drawing search is instructed, in order to grasp the data capacity corresponding to the drawing in advance, a process in which the approximate data capacity of the drawing concerned is reflected on the search icon.

The cursor CU is moved by operating the mouse 207, and a command to select "capacitive three-dimensional display" in the icon area 102 is issued. This selection command is input to the operation input unit 10 of the CPU 201.
After that, the request is sent to the icon stereoscopic display processing unit 109. Graphic data amount calculation unit 108
When the drawing data is registered in advance in the graphic file of the file device 203, the capacity of the graphic data is calculated for each layer, and the result is stored in the main memory 202 as shown in FIG. 9A. The icon three-dimensional display processing unit 109 creates the shape of the icon based on the data capacity sum calculated from the hierarchical graphic data capacity table on the main memory 202 by the graphic data amount calculation unit 108 according to the display request hierarchy. As shown in FIG. 9B, the shape of the icon is such that the depth direction of the three-dimensional icon corresponds to the figure data capacity. For the icon depth, the maximum value of the figure data amount is determined in advance, and the value is converted as 100%. The three-dimensional icon is edited by the display editing unit 110 as drawing data of the icon part, and is displayed in the drawing display area 103.

In this way, the approximate data capacity of the search drawing can be easily determined by the icon shape before searching the drawing.
It is possible to quickly and easily grasp the search time, the data processing time, and the like.

Next, the change of the priority of the display hierarchy will be described.

The figure data of a facility drawing fluctuates due to a change in terrain due to the development of a residential land, an improvement in roads, or the like, or a correction of a pipeline due to a new construction or change of a pipeline. For this reason, when the relevant drawing is searched and displayed after the drawing is corrected, if the display priority table does not change, display may not be possible within a predetermined search time, or the display data hierarchy may be insufficient. To solve this problem, the operator performs a display layer change operation and selects a necessary display layer. The following processing is performed for the change operation at this time.

When the priority display control unit 105 changes the display layer to be the display layer in the corresponding graphic data retrieved from the graphic file 203, the priority is changed to the corresponding layer of the display priority table set in advance by the change history information. Change priority levels automatically. That is, as shown in FIG. 10, the priority assigned to each hierarchical number is changed based on the history of the display hierarchical change operation. When the display layer change operation is to add a display layer, the priority is decreased by −1, and when the display layer is deleted, the priority is increased by +1 to change the priority. At this time, the amount of priority change is limited to the maximum and minimum values. FIG. 11 is a flowchart of the processing shown in FIG. First, in block 1101, the presence / absence of addition / deletion of a display layer when the operator performs the display layer selection processing is designated in the corresponding layer. The block 1102 calculates the priority change amounts for each display layer as −1 and +1 according to the presence / absence of addition and deletion of display layers. Block 1103
Then, the priority based on the display layer change history is calculated based on these calculation results. The process proceeds to block 1104, where the upper and lower limits of the post-history change priority are checked. If the post-history change priority falls within the range, the post-history change priority is written to the display priority table as shown in block 1105. On the other hand, when it is out of the upper / lower limit range, as shown in a block 1106, a process of writing the minimum level to the display priority table when it is smaller than the lower limit value and the maximum level when it is larger than the upper limit value is executed.

Next, a method of determining the display priority table of FIG. 5 based on the display time will be described with reference to FIG.

FIG. 12 shows the flow of processing for creating a display priority table based on display time. Block 12
In step 01, a hierarchical figure data capacity table as shown in FIG. In block 1202, the required display time is calculated based on the display data amount per unit time based on the hierarchical graphic data capacity table created in block 1201. In block 1203, a frequency distribution table for each hierarchy is created for each display time zone as shown in FIG. 13A, and in block 1204, a cumulative display time diagram is generated from the frequency distribution table for each hierarchy as shown in FIG. 13B. create. In block 1205, for example, five display priority levels are sequentially assigned to the total display time diagram according to the total display time. The average display time corresponding to the five display priority levels is calculated in block 120.
Calculate at 6. That is, the total display time corresponding to each priority level is divided by each frequency to obtain the average display time of each priority level. Finally, in block 1207, a display priority level is assigned to a hierarchy corresponding to the average display time, and written to the display priority table.

In this manner, the display priority is automatically updated based on the operation history and the display time, and the target drawing can be always searched for at the optimum search time.

[0031]

As described above, according to the present invention, the drawing information required by the user can be promptly displayed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a main part of an embodiment of the present invention.

FIG. 2 is an overall configuration diagram showing one embodiment of the present invention.

FIG. 3 is a diagram showing a relationship between a drawing configuration stored in a file device and a figure coordinate position.

FIG. 4 is a diagram showing a hierarchical structure of graphic data.

FIG. 5 is a diagram showing display priorities.

FIG. 6 is a diagram showing a display example of drawings according to display priorities.

FIG. 7 is a diagram showing a processing flow of a priority display control unit.

FIG. 8 is a diagram showing a processing flow of a priority display processing unit.

FIG. 9 is a diagram showing an example in which a graphic data capacity of each drawing is converted into a three-dimensional shape of a search icon.

FIG. 10 is a diagram showing an example of correction when changing the history of the display priority table.

FIG. 11 is a flowchart of a process of rewriting a display priority table when a history is changed.

FIG. 12 is a flowchart for updating a display priority table.

FIG. 13 is a flowchart of a process of creating a display priority table based on display time.

[Explanation of symbols]

101: display surface, 102: icon area,
103: drawing display area, 104: operation input unit, 105 ...
Priority display control unit, 106: graphic search unit, 107: priority display processing unit, 108 (105): graphic data amount calculation unit, 1
09 (106) ... icon three-dimensional display processing unit, 110 ... display editing unit, 111 (108) ... symbol definition unit, 112 (1)
09) Attribute search unit, 201 CPU, 202 main memory, 203 file device, 204 drawing input device, 205 CRT, 206 keyboard, 207 mouse, 208 data input device.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-200586 (JP, A) JP-A-1-62769 (JP, A) JP-A-2-4285 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) G06F 17/50 G06F 17/30 G06T 1/00 JICST file (JOIS)

Claims (2)

(57) [Claims] 1. A drawing management apparatus, wherein drawing information of a facility drawing is converted into digital information and divided into a plurality of hierarchies for management, and a desired facility drawing is displayed on a display device.
Priority is determined for each layer of
Drawing management apparatus characterized by the drawing information of the hierarchy can be displayed within the display processing time et request comprises means for displaying on said display device. 2. A drawing management apparatus which digitizes drawing information of a facility drawing into digital information and manages the drawing by dividing it into a plurality of hierarchies, and displays a desired facility drawing. Means for assigning and storing a priority, and requesting from a higher- priority hierarchy stored in the storage means
A selection display instructing means for displaying, on the display device, a facility drawing of a hierarchy that can be displayed within the display processing time to be displayed .