JPH01265363A - Drawing control device - Google Patents

Abstract

PURPOSE:To perform the input of symbols of a drawing of an equipment with high accuracy and high efficiency by displaying the divided equipment information on a display device together with a list of the symbol codes and forms and selecting the corresponding symbols out of the list to set them at the positions shown by the leader lines. CONSTITUTION:When the symbols are arranged in a conversational system, a traced drawing is read by a drawing reading device and transformed into a vector. The result of this transformation and a list of the symbol numbers and forms are displayed at one time on a display 106. The numerals read out of the vector on the drawing are read by a human being and the symbol of the corresponding number is selected out of the list 116 and set at the position shown by a leader line. In this case, the position of the symbol is automatically corrected onto the line of a hierarchy where the nearby corresponding symbol is set or at the end of said line in case said symbol is put on a line graphic or at the end of this graphic. Then the direction of the symbol is automatically set at the direction of the corresponding line. Thus the symbol input efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drawing management device for converting facility drawings such as water and gas piping systems, electricity and telephone wiring systems into digital information and managing the drawings.

[Conventional technology]

Conventionally, the status of facilities such as water, gas, electricity, and telephone piping and wiring systems has been managed using drawings drawn on paper or polyester film. At this time, if changes occur to the facility, the drawings will need to be revised. All drawing correction work must be done manually, which is problematic in that it requires a lot of effort and time, and the rate of errors is high. In order to solve this problem, it has been proposed to manage facility drawings by converting them into digital information, as described in Japanese Patent Publication No. 61-9667, for example. To manage facility drawings by converting them into digital information, a large number of facility drawings (topographical maps, system diagrams, symbol diagrams, etc.) stored in a file device are displayed on a monitor on a display device. Also, correction work for one drawing is performed by displaying it on a display device.

Known methods for inputting facility drawings into digital information include using a hand digitizer, displaying the inputted drawings on a display while having a conversation using a tablet or mouse, and using an automatic drawing reading device. ing. Especially when it comes to reading symbols,
As described in Japanese Unexamined Patent Publication No. 62-206694, a method for recognizing a partial figure of an input drawing by comparing it with a symbol dictionary has been proposed.

[Problem to be solved by the invention]

As mentioned above, when facility drawings are digitized and input to manage digital information, the symbols on the facility drawings have the characteristic that they are written on the line representing the facility or at the end of the line in accordance with the direction of the line. Therefore, when inputting using a digitizer or conversational manual input, it is difficult to accurately place the line on the line or at the end of the line according to the direction of the line.When inputting using conversational manual input, inputting is performed while looking at the display and the original diagram alternately. Therefore, there was a problem that work efficiency decreased. In addition, the method of automatically reading symbols has the problem that each symbol must be registered in a symbol dictionary, and symbols of various shapes overlap with other shapes or are written at an angle. The problem is that a 100% recognition rate cannot necessarily be expected, and conversation must be corrected after recognition.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by providing a drawing management device that can accurately, reliably, and efficiently input symbols on facility drawings.

[Means to solve the problem]

The above objective is achieved by taking the following approach.

In order to hierarchize the line information on the facility drawing and read it with a drawing input device, a leader line is drawn from the position where the symbol is to be placed, and a number indicating the type of symbol is written on the drawing where the color is traced. At this time, the numbers of the leader lines and symbols are separated by color from the line information of the facility and are placed in an independent hierarchy, and the numbers are written in an upright position so as not to overlap with other figures.

As for the definition of symbols, the shape and symbol arrangement conditions include those that are placed alone, those that are placed on a line figure, and those that are placed at the end of a line figure, according to the number that represents the type of symbol. However, for items placed on a line figure or at the end of a line figure, the hierarchy of the corresponding line figure is also defined.

When arranging symbols in a conversational manner, the traced drawing is read by a drawing reading device, the result of vectorization and a list of symbol numbers and shapes are displayed simultaneously on the display, and the numbers read as vectors on the drawing are displayed on the display. Humans read and select the corresponding number symbol from the one-column table, and place it at the position indicated by the leader line. At this time, if the symbol is placed on a line figure or at the end of a line figure, the position of the symbol is automatically corrected on the line or at the end of the line of the hierarchy where the corresponding symbol is placed nearby, and the direction of the symbol is changed. Automatically match the direction of the corresponding line. Once the placement of the symbol is complete, the symbol number and the shape of the leader line hierarchy are deleted all at once. In addition, when placing symbols automatically, the traced drawing is read by a drawing reading device and vectorized, and at the same time, the number indicating the number of the symbol is automatically recognized, and the symbol with the number corresponding to the number is placed in the drawer near the number. Automatically place at the end point position on the opposite side of the line.

At this time, if the corresponding symbol is placed on a line figure or at the end of a line figure, it is placed on a nearby line or at the end of a line so that its direction matches the direction of the line, as in the case of the conversation system.

[Effect]

Instead of writing symbols in the input drawing, by writing numbers and leader lines that indicate the type of symbol, humans can read the numbers processed as vectors and find the corresponding symbol without having to automatically recognize the symbols and characters. Since the symbol can be placed in the position indicated by the leader line, the user can speak the symbol by looking only at the display. By color-coding symbol numbers and leader lines and inputting them as independent hierarchies, symbol numbers and leader lines that are no longer used after placement can be deleted all at once. Define what will be placed on the line shape and what will be placed at the end of the line shape in the symbol definition, and automatically correct the position of the symbol on the line near the indicated point or at the end of the line and change the direction to the line. By matching the orientation, accurate placement is possible and there is no need to input the orientation.

Furthermore, by writing numbers instead of symbols, only the numbers need to be recognized during automatic recognition, eliminating the need for special recognition for symbols. In addition, the recognition rate is improved because the number is written using a leader line in a square format so as not to overlap with other figures.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a basic configuration diagram of a drawing management device which is an embodiment of the present invention.

In FIG. 2, facility drawing data is stored in a file device 203. Facility drawing data includes graphic data such as topographic maps and pipeline maps, and attribute data expressed in characters and numbers, such as town names, personal names, management diameters, and pipe types related to the graphics. The stored graphic data is created by scanning drawings drawn on paper at regular intervals, creating gradations according to the shading of the read data, and hierarchizing hues according to the colors, resulting in digital images with color removal codes. The vector data is inputted from the drawing input device [204]. As shown in FIG. 3(a), the facility drawing consists of a plurality of drawings, each of which is divided into graphic data files. The graphic data is shown in an orthogonal coordinate system as shown in FIG. 3(b), and its lengths XO and Yo in the X and Y axis directions are determined by the drawing size. These graphical data are shown in Figure 4 (
As shown in b) to (d), the data storage structure is hierarchically separated into roads, house frames, and pipes. Each layer of these data is superimposed as necessary to form graphic data as shown in FIG. 4(a). On the other hand, attribute data is input to the file device 203 using a keyboard 206 or a data input device 208 such as a floppy disk that can input data in bulk. In order for the operator to display a drawing on the display device (CRT) 205 by operating the mouse 207, the operator first operates the mouse 207 to move the cursor to a function selection icon displayed on the CRT screen. Specify. When you specify the "Read drawing" icon,
A 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 functions to store programs for executing processes such as searching and editing screen data and data being processed. The drawing data temporarily stored in the main memory 202 is aligned with the effective display coordinates of the display area of the CRT 205.

After the data is edited by the CPU 201, it is displayed on the CRT 205. The operator can know the target drawing content from this display screen. In addition, to understand the finer details, enlarge the part and display it. To do this, for example, the mouse 207 is used to move the cursor CU to designate an arbitrary rectangular area from the CRT display area at both ends on the diagonal line, and enlarge or reduce it to an arbitrary magnification. Specifically, part of the corresponding drawing data stored in the main memory 202 is sent to the CPU.
The image is enlarged/reduced via the CRT 201 and displayed on the CRT 205.

Next, the procedure for inputting symbol data and symbol arrangement processing in the digitization input of facility graphic data will be explained with reference to FIG.

FIG. 1 shows the main part of an embodiment of the present invention.
2 is a diagram illustrating an example of a symbol placement processing unit 201. FIG.

The input predisposition 101 includes a topographic map, a pipeline map, and characters. Divide this drawing into two sheets, a topographic map and a pipeline map, and trace them by color to separate the layers.
2o4 is digitized and input to the graphic file 104 in the file device @203. Further, characters are input as attribute data to the attribute file 105 of the file device @2o3 using the keyboard 206 or the data input unit [208. Here, in the trace diagram 102 of the pipe diagram, a leader line is drawn from the arrangement point of the symbol in addition to the pipe line, and a number indicating the type of symbol is written in an upright digit in the blank area on the extension thereof. After inputting this pipe trace diagram 102 into the drawing input device 204 and converting the numbers into vector data with color codes like other line figures, the input drawing conversion unit 103 in the CPU 201 converts the color codes into hierarchical information. It is converted and stored in the graphic file 104.

FIG. 5 shows the hierarchical structure of the pipe trace diagram 102. The pipe trace diagram 102 shows the water pipe layer 501. Water supply pipe layer 502.
Symbol input layer 5 consisting of a number indicating the type of symbol and a leader line
03 colors are traced, and the graphic data in the graphic file 104 is stored in three layers corresponding to these three colors.

Symbol input layer 50 of the graphic file 104 input above
In order to replace 3 with an actual symbol, display the graphic data on the display device (CRT) 205 and use the mouse 207.
Manipulate symbols to perform conversation skills.

Icons 107 are displayed on the display surface 106 for selecting functions such as drawing search and display and symbol arrangement. Display screen 1 using mouse 207
06, move the cursor that moves in response to the movement of the mouse 207, and select "Drawing Search" on the icon 107. As a result, a drawing search display request is issued from the operation input unit 108 to the drawing search unit 109. The drawing search unit 109 retrieves the corresponding drawing data from the graphic file 104. Attribute file 10
5 and stored in the retrieved drawing data 110 on the main memory 202, a drawing display request is issued to the drawing display section 111. The drawing display unit 111 edits the graphic data and attribute data of the search drawing data 110 by hierarchy, and for symbols, the symbol data in the graphic data described by the number indicating the type of symbol and the position/inclination, Symbol definition data 1
The shape data stored in 15 is converted into display graphic data. The drawing display section 111 displays this result in the drawing display area 113 of the display screen 106 via the display editing section 112. As for the drawing data at this point, only the vector data input from the pipe trace diagram 102 is displayed in the drawing display area 113. The numbers indicating the symbol numbers are also displayed as the result of being processed as vectors, so although the shape is slightly distorted, there is no problem in identifying them as numbers.

Here, regarding the contents of the symbol definition data 115, the symbol definition operation flow shown in FIG. 6, the symbol definition table structure shown in FIG.
This will be explained based on the symbol shape definition method shown in FIG. Symbols on facility drawings include symbols on topographic maps that are written in an upright position independently of other figures (called independent symbols), and symbols that are written on a line according to the direction of the line, such as valves on water pipes. It can be roughly divided into three types: those written on the line (called on-line symbols), and those written at the end points of lines like water pipe meters (called line bundle symbols), and these classifications are classified into each symbol as a symbol type. By setting this in advance, the position and inclination of the symbol can be corrected to match the line.

Furthermore, by defining the layer of the line figure on which the symbol is to be placed as the corresponding line figure layer, it is possible to prevent the symbol from being placed on a line in the wrong layer.

In the symbol definition operation procedure, first, symbol number selection 601 is performed, shape definition 6029 name manual input 603 is performed, symbol type input 604 is performed, and when the symbol type is on a line or line bundle, corresponding line figure layer input 606 is performed. In the resulting symbol definition data 115, as shown in the symbol definition table structure of FIG. 7, items such as a number, shape data, name, symbol type, and corresponding line figure layer are set for each symbol. In the example of FIG. 7, the meter φ13. Each meter φ20 is defined as a symbol placed on a line of water supply pipes, a stop valve is defined as a symbol placed on a line of water supply pipes, and a gate valve is defined as a symbol placed on a line of water pipes.

There is also a difference in shape definition between line symbols and line end symbols. In the symbol shape definition method shown in FIG. 8, (a) is a case of a symbol on a line, and the shape definition 803 is performed symmetrically about the center point 802 of the symbol definition surface 801 so that the center of the symbol corresponds to the arrangement point.

(b) is the case of a line bundle symbol, where the arrangement point is the end point of the line,
In order to display the symbol as a figure beyond that, a shape definition 806 is performed on the right side of the center point 805 of the symbol definition surface 804.

Next, a description will be given of symbol arrangement based on numbers indicating the symbol numbers displayed in the drawing display area 113 and leader lines.

“Symbol placement” on the icon 107 using the mouse 207
Select. As a result, the symbol -
A symbol-list display request is issued to the symbol-list display section 114, and the symbol-list display section 114 converts the symbol numbers and shape data corresponding to the numbers in the symbol definition data 115 into a list format and sends them via the display editing section 112. The symbol - on the display surface 106
A list 116 is displayed. Next, a symbol corresponding to the symbol number on the displayed drawing is selected from the symbol list 116 using the mouse. As a result, the number of the selected symbol is determined by the symbol selection section 117 via the operation input section 108, and the selected symbol is displayed in the symbol list display section 1142 and the display editing section 112.
, and is highlighted on the symbol list 116.

Next, in order to indicate the placement position of the selected symbol, the user operates the mouse to indicate the position indicated by the leader line on the drawing display area 113. The designated coordinates are passed through the operation input section 108 to the symbol arrangement coordinate correction section 118. If the symbol type of the selected symbol is on a line or on a line bundle, the symbol arrangement coordinate correction unit 118 corrects the designated coordinates to be on a nearby line or an end point of the line. In response to this result, the symbol inclination corrector 119 corrects the inclination of the symbol to match the inclination of the line.

The above symbol arrangement coordinate correction section 118 and symbol tilt correction section 11
9 will be explained with reference to the indicated point/tilt correction process in FIG. 9. (,) is for a line symbol. If the symbol to be placed is a gate valve and the corresponding line figure layer is a water pipe,
Assuming that the line 902 closest to the indicated point 901 is a water pipe, and the next closest line 903 is a water pipe, a perpendicular line is drawn on the line 903 that matches the corresponding line figure layer, and its foot is corrected for the symbol position. Let it be a point 904. Symbol arrangement 906 is performed so that the slope of the symbol matches the slope 905 of line 903. (b)
In the case of a line bundle symbol, set the end point 909 of the line as the symbol position correction point in the corresponding line figure layer of the selected symbol closest to the indicated point 907, set the slope 910 as in the case of the symbol on the line, and set the symbol arrangement 911. Do this.

As a result, the arranged symbol data is stored in the search drawing data 110, and the arranged symbol data is stored in the drawing display section 111.
2 is placed on the drawing display area 113 via the display editing section 112.

The symbol placement operation described above is repeated, and when all the symbol placement on the drawing is completed, the graphics in the layer for symbol input 503 are deleted all at once, thereby completing the symbol input on the drawing.

In the embodiments described above, the symbols are arranged in a conversational manner, but the trace diagrams and symbol definitions are the same.

An example of automatically arranging symbols using position/tilt correction will be described with reference to FIG. 10, taking as an example the case where the symbols to be arranged are line symbols.

First, a numeric recognition substitution 1002 is performed on the symbol input layer 503 of the result 1001 obtained by inputting the pipe trace diagram 102 from the drawing input device 204, and vectors are replaced with characters to obtain a numeric recognition result 1003. When performing this recognition replacement, by writing the numbers upright in the blank space when tracing the drawing, the recognition process is simplified and the recognition accuracy is improved. Search for the leader line closest to the number indicating the number of this symbol 1004L, , the corresponding leader line 100
Get 5. The end point of the corresponding leader line is set as the placement instruction point 1007, and the instruction point correction 1009 and tilt setting are performed in the same way as when speaking manually, and finally, the symbol input layer 503 is erased all at once to obtain the placement result 1011.

In this embodiment, layer separation was performed by tracing in different colors and inputting it to the drawing input device.However, by tracing each layer in a single color as a separate drawing and inputting it from the drawing input device, layer separation can be achieved. It is also possible to do this.

In the present invention, the symbol input layer is vectorized and then displayed on the CRT display device to perform number recognition during automatic arrangement, but the symbol input layer is displayed as image data on the CRT display device. , It is also possible to perform number recognition from image data.

〔Effect of the invention〕

According to the present invention, the following effects can be achieved.

(1) When arranging symbols on a CRT display in an interactive manner, the symbol type and arrangement position are displayed on the display, so the symbol arrangement can be done without looking at a single drawing.

(2) When arranging a symbol, the position is corrected on the line or at the end of the line depending on the type of symbol, and the inclination is automatically set, so that the symbol can be placed accurately with simple operations.

(3) Since the graphic layer for symbol input is set as a separate layer and the colors are traced and input, the graphic layer for symbol input that is no longer needed after the symbol arrangement is completed can be deleted all at once.

(4) For symbols placed on a line or at the end of a line, the hierarchy of the corresponding line figure is determined in advance, so
A symbol will not be placed on a line in a different hierarchy by mistake.

(5) When automatically placing symbols, instead of automatically recognizing the symbol itself on the input drawing, it automatically recognizes the number written upright in the blank space, so there is no need for special recognition processing for symbols. Moreover, recognition accuracy is also improved. Furthermore, since the placement points are indicated by the leader lines, positional accuracy is also improved.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the main parts of an embodiment of the present invention, Fig. 2 is an overall block diagram showing an embodiment of the present invention, and Fig. 3 is a drawing structure and figure coordinates stored in a file device. Figure 4 is a diagram showing the positional relationship, Figure 4 is a hierarchical configuration diagram of graphic data, Figure 5 is a hierarchical configuration diagram of a pipe trace diagram, Figure 6 is a symbol definition operation flow, Figure 7 is a symbol definition table configuration diagram, Fig. 8 is a diagram showing the symbol shape definition method corresponding to the symbol type, Fig. 9 is a diagram showing the contents of the symbol placement instruction point correction and tilt setting processing, and Fig. 1
FIG. 0 is a diagram showing the symbol automatic placement processing flow. 101... Input drawing, 102... Pipe tracing diagram,
103... Input drawing conversion unit, 104... Graphic file, 105... Attribute file, 106... Display screen, 107... Icon, 108... Operation input unit, 109... Drawing Search section, 110... Search drawing data, 111... Drawing display section, 112... Display editing section, 113... Drawing display area, 114... Symbol-list display section, 115 Symbol definition data, 116... Symbol list, 117... Symbol selection section, 118... Symbol arrangement coordinate correction section, 119... Symbol tilt correction section, 201.
...CPU, 202...Main memory, 203...File device, 204...Drawing input device, 205...
CRT, 206...keyboard, 207...mouse, 208...data input device. Fig. 2 $3 (2) (g) (2) Surface composition (b) Figure? Full-length birch Fig. 5 Yt mouth 7 Old No. 20 name 9riJ

Claims (1)

[Scope of Claims] 1. A first storage means for dividing a facility drawing of the entire facility into a plurality of pieces for each management area and storing them as digital information, and storing attribute information for each figure, and storing in the first storage means a drawing input device that reads and inputs the divided facility drawing information to be read from a drawing in which codes indicating types of pipes and symbols and leader lines indicating symbol arrangement points are drawn;
a data input device for inputting attribute information to be stored in the storage means; and a data input device for temporarily inputting the necessary divided facility drawing information and attribute information stored in the first storage means or the divided facility drawing information given from the drawing input device. a second storage means for storing information, a display device for displaying part or all of the divided facility drawing information stored in the second storage means, as well as the divided facility drawing information and attribute information on a monitor; the positional coordinates of the divided facility drawing to be temporarily stored in a second storage means, the positional coordinates of the divided facility drawing to be displayed on the monitor from the second storage means on the display device, and for correcting the divided facility drawing displayed on the display device; It is equipped with an operation input means for inputting drawing correction information, and a digital processing device that controls these means and the device, and displays the code and shape of the symbol on the display device at the same time as the divided facility information read by the drawing reading device. A list is also displayed, and the operation input means selects a symbol from the list that corresponds to the code of the symbol on the divided facility drawing, and places the symbol at the position indicated by the leader line. drawing management device. 2. In claim 1, the positional coordinates of the symbols placed on the divided facility drawing are automatically corrected to a nearby piping line or an end point of the piping line according to the form in which each symbol is placed on the facility drawing. , a drawing management device characterized in that the orientation of the symbol is automatically corrected to the orientation of the piping line. 3. A drawing management device according to claim 1, characterized in that a code representing a symbol on an input divided facility drawing is automatically recognized, and a symbol corresponding to this code is automatically placed at a position indicated by a leader line. . 4. In claim 1, when tracing a divided facility drawing, the symbols and leader lines are traced in a different color from other figures, and the layers are separated by reading them with a color drawing reading device. . A drawing management device characterized in that, after the arrangement of symbols is completed, codes and leader lines indicating the symbols are deleted in a hierarchical manner. 5. Claim 2 is characterized in that the hierarchy of the piping line on which the symbol is to be placed is defined for each symbol to prevent the symbol from being placed on the piping line of the wrong hierarchy. drawing management device.