JPH056400A - Drawing managing device - Google Patents

Abstract

PURPOSE:To make it possible to rapidly display a facility drawing divided into plural hierarchies and stored on a display in a drawing level requested by a user by providing this drawing managing device with a means for optionally combining the drawing information of plural hierarchies based upon a requested display processing time and displaying the combined result. CONSTITUTION:Facility drawing data are divided in a file device 203 so that facility drawings of water, gas, electricity, telephone, etc., are divided into plural hierarchies. In order to display a certain drawing in a drawing display level requested by a user, priority is allocated to respective hierarchies and the picture data of a hierarchy to be dispalyed within a display processing limitation time is displayed. Namely a priority display processing part 107 takes in drawing data from a main memory 202 and successively applies the drawing data of hierarchies to be displayed to a display editing part 110 based upon a display priority table and display data volume within the time. The display editing part 110 plots a drawing on a drawing display area 103 based upon the drawing data. The layer numbers of respective hierarchies and their priority are stored in a display priority table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing management apparatus for converting facility drawings such as water and gas piping systems, electricity and telephone wiring systems into digital information and managing the information.

[0002]

2. Description of the Related Art Conventionally, the status of facilities such as water, gas, electricity, piping for telephones, wiring systems, etc. has been managed using drawings drawn on paper or polyester film. At this time, it is necessary to revise the drawing when the facility changes.
All the correction work of the drawings must be done manually,
It has a problem that it requires a lot of labor and time and that the rate of erroneous writing is high. In order to solve this problem, for example, as described in Japanese Patent Laid-Open No. 63-254565, in order to manage facility drawings by converting them into digital information, a large number of facility maps (topographic maps) stored in a file device are managed. , System diagrams, symbol diagrams, etc.) are displayed on the monitor. Further, the correction work of the drawings is also displayed on the display device.

[0003]

The digital data of a drawing is large because of the presence of a modified line, etc., and the total data of one drawing is large in capacity. The display processing of the drawing on the display device is slow because the drawing amount per unit time is large. All drawing data is displayed, including small detailed character information that is difficult to decipher even if only a part of the drawing information is required. Therefore, it takes a lot of time to display a required drawing, and there is a problem in inconvenience and efficiency. In order to solve such a problem, it is required to display the drawing information promptly because only the drawing information in the range required by the user is enough.

The present invention has been made in consideration of the above points, and an object thereof is to provide a drawing management apparatus capable of promptly displaying drawing information having a degree of detail required by a user. To do.

[0005]

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

[0006]

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

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 which is an embodiment of the present invention.

In FIG. 2, the file device 203 stores facility drawing data. The facility drawing data includes graphic data such as topographic maps and pipelines, town names related to the graphic,
There is attribute data expressed in characters and numbers such as personal name, pipe diameter, pipe type, etc. The stored graphic data is input from the drawing input device 204 which scans a drawing written on a paper at regular intervals to obtain a gray scale according to the shade of the read data and obtains a digital image to obtain encoded data. The facility drawing consists of multiple drawings as shown in FIG. 3 (a), each of which is divided into 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 that is hierarchically separated from roads, house frames, and pipelines, as shown in FIGS. Each layer is superposed on these data as required to form graphic data as shown in FIG. On the other hand, for the attribute data, the keyboard 206 or a floppy disk or other data input device 208 capable of collectively inputting data is used to make the file device 2.
Enter 03. The operator (user) is the mouse 207
In order to display a drawing on the display device (CRT) 205 by operating, the operator first operates the mouse 207 to move the cursor CU to the function selecting icon displayed on the CRT screen and designate it. . When the icon of "drawing retrieval" is designated, the central processing unit (CPU) 201 retrieves 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 edit of screen data and data being processed. The drawing data temporarily stored in the main memory 202 is displayed on the CRT 205 after being edited by the CPU 201 in accordance with the effective display coordinates which is the display area of the CRT 205. The operator can know the target drawing content from this display screen.
In addition, in order to grasp the detailed part, the part is enlarged and displayed. For this purpose, for example, by using the mouse 207, the cursor C
U is moved to specify a rectangular arbitrary area from the CRT display area at both ends on the diagonal line to enlarge or reduce it to an arbitrary magnification. Specifically, a part of the relevant drawing data stored in the main memory 202 is enlarged / reduced by the CPU 201 and displayed on the CRT 205.

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

FIG. 1 shows an essential part of an embodiment of the present invention, and is a diagram showing an example of a hierarchical display process with priority by the CPU 201.

In FIG. 1, a display display surface 101 is composed of 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. There is. The mouse 207 is a mouse operation icon area 102.
The keyboard 206 and the mouse 2 are used to select the function from the menu and to specify the position of the drawing displayed in the drawing display area 103, and the keyboard 206 is used to set the drawing search condition.
The input from 07 is taken into 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 and the operation and display will be described.

When a target drawing is searched, the drawing is searched from the index drawing or the drawing is searched from the drawing number or the like to display the drawing. 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
To start. The priority display control unit 105 instructs the graphic search unit 106 to search for the target drawing. First, when the figure search unit 106 searches for drawing data, the priority display processing unit 107 is activated. At this time, the amount of data that can be displayed within that time is calculated from the display processing time set in advance by the user and given to the priority display processing unit 107. Figure search unit 1
In 06, the drawing data is searched from the drawing file in the file device 203 by the target drawing number and the main memory 2 is searched.
No. 02, and sends a signal to the priority display processing unit 107 when all searches are completed. The priority display processing unit 107 fetches the drawing data from the main memory 202, and sequentially supplies 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 layer numbers of layers and their priorities are stored. Here, it is assumed that the smaller the number, the higher the priority.

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

FIG. 6A is a drawing when the display priority is 1.
This is a display example of No. 1, and in this example, a hierarchical group of the road 64, the water distribution pipe 65, the symbol 66 on the water distribution pipe, and the like, which are most important as a 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 overlaid on the graphic data having the display priority 1. See also FIG.
(a) is a display example of the drawing 63 when the display priority is 3,
Hierarchies related to the water supply device 68 are displayed so as to be superimposed on the graphic data having 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, the displayable data amount D _max for the preset display processing time t is calculated. 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 layer is calculated, and in block 703, a data display request of priority i is sent to the priority display processing unit 107. Block 704
Then, the total display data amount up to the priority i is calculated and compared with the maximum displayable data amount, and when it is within the maximum data amount, the next display priority i + 1 is repeated as described above.

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

In this way, since only the figure data corresponding to the previously designated search time can be automatically selected, the drawing data with high priority can be searched quickly 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 is reflected on the search icon is described.

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

In this way, the approximate data capacity of the retrieved drawing can be easily identified by the icon shape before the retrieval of the drawing.
The search time and data processing time can be grasped quickly and easily.

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

The facility drawing has its graphic data changed due to a change in the terrain associated with the development of a residential land, a road improvement, etc., or a pipeline modification due to the establishment or modification 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, it may not be possible to display within the previously specified search time, or the display data hierarchy may become insufficient. In order to solve this problem, the operator performs a display layer change operation and selects necessary display layers. The following processing is performed for the change operation at this time.

When the display layer to be the display layer is changed in the corresponding graphic data retrieved from the graphic file 203, the priority display control unit 105 changes the display history table preset to the corresponding hierarchy in accordance with the change history information. Change priority level automatically. That is, as shown in FIG. 10, the priority assigned to each layer number is changed according to the history of the display layer changing operation. When the display layer changing operation is the addition of the 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 priority change amount is limited to the maximum and minimum values. FIG. 11 is a flowchart of the processing shown in FIG. First, in block 1101, presence / absence of addition / deletion of a display layer when the operator performs a display layer selection process is designated to the corresponding layer. A block 1102 calculates the priority change amount for each display layer as −1 and +1 according to the presence or absence of addition or deletion of the display layer. Block 1103
Then, the priority based on the display layer change history is calculated based on these calculation results. Moving to block 1104, the upper and lower limits of the priority after history change are checked, and if within the range, the priority after history change is written in the display priority table as shown in block 1105. On the other hand, when it is outside the upper and lower limit range, as shown in block 1106, the minimum level is written in the display priority table when it is smaller than the lower limit value, and the maximum level is written in the display priority table when it is larger than the upper limit value.

Next, how to determine the display priority table of FIG. 5 by the display time will be described with reference to FIG.

FIG. 12 shows a processing flow of creating a display priority table according to display time. Block 12
At 01, an operator's instruction creates a hierarchical graphic data capacity table as shown in FIG. 9A for an arbitrary drawing. In block 1202, the required display time is calculated based on the display data amount per unit time by the hierarchy-based graphic data capacity table created in block 1201. At block 1203, a frequency distribution table for each display time zone is created as shown in FIG. 13A, and at block 1204, a cumulative display time chart is displayed as shown in FIG. 13B from this frequency distribution table for each hierarchy. create. In block 1205, for example, five display priority levels are sequentially assigned to the cumulative display time chart according to the cumulative display time. The average display time corresponding to the five display priority levels is the block 120.
Calculate in 6. That is, the cumulative 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, the display priority level is assigned to the hierarchy corresponding to the corresponding average display time and is written in the display priority table.

In this way, the display priority is automatically updated according to the operation history and the display time, and the target drawing can always be searched with 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 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 an embodiment of the present invention.

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

FIG. 4 is a hierarchical configuration diagram of graphic data.

FIG. 5 is a diagram showing display priority.

FIG. 6 is a diagram showing a drawing display example for each display priority.

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 the 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 changing a history.

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

FIG. 13 is a flowchart of a process of creating a display priority table according to display time.

[Explanation of symbols]

101 ... Display surface, 102 ... Icon area,
103 ... Drawing display area 104 ... Operation input section 105 ...
Priority display control unit, 106 ... Graphic retrieval unit, 107 ... Priority display processing unit, 108 (105) ... Graphic data amount calculation unit, 1
09 (106) ... Icon stereoscopic display processing unit, 110 ... Display editing unit, 111 (108) ... Symbol definition unit, 112 (1)
09) ... Attribute retrieval unit, 201 ... CPU, 202 ... Main memory, 203 ... File device, 204 ... Drawing input device, 205 ... CRT, 206 ... Keyboard, 207 ... Mouse, 208 ... Data input device.

Claims (3)

[Claims] 1. A drawing management device in which drawing information of a facility drawing is converted into digital information and managed by dividing it into a plurality of hierarchies, and a desired facility drawing is displayed on a display device based on a required display processing time. A drawing management device comprising means for displaying on the display device any combination of drawing information of a plurality of layers. 2. A drawing management device for converting the drawing information of a facility drawing into digital information and managing it by dividing it into a plurality of hierarchies and displaying a desired facility drawing for each facility drawing divided into a plurality of hierarchies. Means for giving priority and storing, and selection display instructing means for displaying on the display device a desired facility drawing obtained by selecting a desired number of layers from the storage means in consideration of priority. A drawing management device comprising: 3. A first storage means for dividing the facility drawing of the entire facility into a plurality of management area units and storing them as digital information, and also storing attributes and the like of each figure, and a division to be stored in the first storage means. A drawing input device for inputting facility drawing information, a data input device for inputting attribute information to be stored in the first storage means, and desired divided facility drawing information stored in the first storage means or the drawing input Second storage means for temporarily storing the divided facility drawing information given from the device, a part or all of the divided facility drawing information stored in the second storage means, and the divided facility drawing information and the attribute information for monitor display And a digital processing device for controlling each of these means and devices.