JPH07320043A - Graphic editing and drawing issuing device - Google Patents

Abstract

PURPOSE:To delete intersection parts of overlapping lines and edit a plan into an easy-to-see drawing when the plan is issued from a data base by a mapping system. CONSTITUTION:An application program 31 takes necessary topography, facility, dimension line, extension line, and special-shaped tube lead-out data out of the data base 17 into a work file 29. It is checked whether inputted coordinate data on dimension lines, etc., added to the plan and the existent data on the topography, facilities, dimension lines, etc., overlap with each other and when there is an overlap, a jump processing is performed in the decreasing order of priority of overlapping data to delete the overlap part. On the basis of the processed data, an easy-to-see guide drawing is issued.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic editing / drawing device for creating a design drawing or the like attached to an application drawing required for construction of a public interest property facility by using a mapping system.

[0002]

2. Description of the Related Art Conventionally, in the case of creating a design drawing attached to an application drawing required for construction of a utility facility, etc., a method of tracing necessary maps and equipment from the equipment drawing, and updating or entering new equipment is a method. It has been used mainly.

By the way, recently, there is a mapping system for creating a map using a database holding data relating to the map. If such a mapping system is used to create the above-mentioned blueprints, etc., a map of any size will be displayed on the display screen, and new or updated equipment and necessary dimension lines, etc. will be entered, and then the map will be displayed. And the required blueprint is obtained.

[0004]

FIG. 26 shows an example of a design drawing issued by using the mapping system as described above. In FIG. 26, 601 is a road as topographical data, 603 is a gas pipe as facility data, and 605
Is a dimension extension line, 607 is a dimension line, and 609 is a modified pipe extraction line.

By the way, as shown in FIG. 26, in the design drawing using the mapping system, there is a problem that the dimension auxiliary line 605 and the deformed pipe lead-out line 609 overlap each other, making it difficult to see.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a graphic editing / drawing device capable of creating an easy-to-see drawing.

[0007]

In order to achieve the above-mentioned object, the present invention provides a graphic editing / drawing apparatus for appropriately calling and drawing line drawing data stored in a database.
A means for calling line drawing data of a predetermined map from the database and storing it in a work file, a means for extracting the line drawing data in the work file, and the presence / absence of an intersection between the extracted line drawing data Means for comparing the priorities of the line drawing data intersecting with each other, cutting means for cutting the intersection of the line drawing data having a lower priority, and outputting the edited line drawing data. A figure editing / drawing / drawing apparatus comprising:

The present invention is not limited to design drawings but can be widely used for drawing drawings of mapping systems such as maps and equipment.

[0009]

In the present invention, the line drawing data of a predetermined map is called from the database, saved in the work file, the line drawing data in the work file is extracted, and it is determined whether or not there is an intersection between the extracted line drawing data. If there is an intersection, compare the priorities of the line drawing data that intersect,
The intersection of the line drawing data with the lower priority is cut, and the edited line drawing data is output.

The present invention has the advantage that, as a human nature, even if a part of the other line in the vicinity of one line is cut between overlapping lines, it is easy to see the connection of the other line without making a mistake. It utilizes the feeling that only remains.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram of the hardware of the graphic editing / drawing apparatus of the present invention. In FIG. 1, 1 is a host computer, 3 is a display device, and 5 is a keyboard. In the digitizer 7, for example, when a required function is selected from the menu 11 and the cursor 13 is used to click an appropriate portion of the drawing 9, the graphic information is read into the host computer 1. The electrostatic plotter 15 is an output device that draws a necessary map.

The database 17 stores line drawing data 18. Topographical data 1 as line drawing data 18
9, equipment data 21, dimension line data 23, dimension auxiliary line data 25, and deformed pipe extraction data 27. The application program 31 executes the editing process shown in this embodiment under the host computer 1. At the time of edit processing, necessary data is taken out to the work file 29 and processed.

In FIG. 2, the terrain data 1 is stored in the database 17.
It is an example of the topographic map stored as 9. The terrain 41 is, for example, a road, and the information stored as the terrain data 19 includes coordinate data (X1, Y1), (X2, Y2).
Is.

FIG. 3 is a record format diagram when the terrain 41 shown in FIG. 2 is held as the terrain data 19 of the database 17. The terrain record 43 includes a data number 45, a classification number 47, a data number 49, and coordinate data 5
1-1, 53-1, 51-2, 53-2, ..., 51-
n, 53-n, and an end flag 55.

The data number 45 contains a number unique to each record. The type number 47 contains a number representing the type of data. For example, in the case of a record of topographical data, “10” is entered in the classification number 47. The number of data 49 stores the number of coordinate data after the number of data 49 and the number of items for the end flag 55. That is, the number of data = n + 1. It should be noted that one set of the X coordinate and the Y coordinate is counted as one coordinate data. In the end flag 55, "-1" indicating the end of one terrain record is entered.

FIG. 4 shows the equipment data 2 of the database 17.
The example of the equipment stored as 1 is shown. In this example, the equipment 61 is, for example, a gas pipe, a water pipe, or the like.

FIG. 5 is a record format diagram when the equipment data is stored in the database 17 as the equipment data 21. Equipment record 63 has data number 6
5, type number 67, number of data 69, coordinate data 71-
1, 73-1, 71-2, 73-2, ..., 71-n,
73-n and the end flag 75.

The data number 65 is a number unique to the record,
The type number 67 stores “21” indicating that it is a record of equipment data, and the number of data 69 stores the number of coordinate data after the number of data 69 and the number of items (n + 1) for the end flag 75 minutes. A "-" at the position of the X coordinate indicates that the code is a control code. For example, the end flag 75 contains "-1" indicating the end of the equipment record.

FIG. 6 is a diagram showing an example of the dimension line. The dimension line 81 is, for example, four points (X1, Y1), (X2, Y
2), (X3, Y3), (X4, Y4). FIG. 7 is a record format diagram of the dimension line 81 shown in FIG. The short walk line record 83 is data number 8
5, type number 87, number of data 89, coordinate data 91-
1, 93-1, 91-2, 92-2, ..., Jump flag 95, and end flag 97. The data number 85 contains a number unique to each record. The type number 87
A number indicating the data type is entered, and in the case of dimension line data,
"22" is entered. The number of items of data 89 stores the number of items of coordinate data after the number of items of data 89, the number of items for the jump flag 95, and the end flag 97. In this case, the number of data is 8
In "9", "6" is entered. The jump flag 95 contains "-2" indicating the jump process, and the end flag 97 contains "-1" indicating the end of one record.

As for the dimension line, as shown in FIG. 6, four points may be determined and the character data "5.7 m" may be entered in the center, or two points at both ends are determined and the 2 You may write the character data "5.7 m" in the vicinity of the line segment connecting the points.

FIG. 8 is a diagram showing an example of the dimension extension line. The dimension extension line 101 includes, for example, four points (X1, Y1
), (X2, Y2), (X3, Y3), (X4, Y4
). Reference numeral 102 is, for example, a gas pipe.

FIG. 9 is a record format diagram of the dimension extension line 101 shown in FIG. Short walk auxiliary line record 10
3 is data number 105, type number 107, and data number 10
9, coordinate data 111-1, 113-1, 111-2,
113-2, ..., Jump flag 115 and end flag 117. The data number 105 contains a number unique to each record. A number indicating the data type is entered in the type number 107, and in the case of the dimension extension line data, "23" is entered. The data count 109 includes the number of items of coordinate data after the data count 109, the jump flag 115, and the end flag 11.
The number of items of 7 minutes is stored. In this case, the number of data is 109
"6" is entered in The jump flag 115 contains "-2" indicating the jump process, and the end flag 117 contains "-1" indicating the end of one record.

FIG. 10 is a view showing an example of the deformed pipe lead-out line. FIG. 11 is a record format diagram of the modified pipe lead-out line 121 shown in FIG. Deformed pipe lead-out record 1
23 is data number 125, type number 127, data number 1
29, coordinate data 131, a jump flag 133, and an end flag 135. The data number 125 contains a number unique to each record. A number indicating the data type is entered in the type number 127, and in the case of variant pipe lead-out line data, "2
4 ”is entered. The number of data items 129 stores the number of items of coordinate data after the number of data items 129, the number of items for the jump flag 133, and the end flag 135. In this case, “13” is entered in the data number 129. Jump flag 133
"-2" indicating a jump process, and "-1" indicating the end of one record is entered in the end flag 135.

FIG. 12 is a format diagram of the priority table 141. The priority table 141 stores priority levels and data names corresponding to the priority levels. That is, the equipment data, the topographical data, the dimension line data, the deformed pipe extraction data, and the dimension extension line data have higher priority in this order.

Next, the dimension extension line 1 as shown in FIG.
51, 155 and topographic lines 157, 158, 159 will be described with reference to the flowchart of FIG. 13, FIG. 14, FIG. 15, and FIG. When the operator inputs the required drawing number from the keyboard 5 (step 1301), the application program 31 retrieves all the data records corresponding to the inputted drawing number from the database 17 and temporarily stores them in the work file 29 (step 1302). ).

The operator uses the digitizer 7 to input all coordinates such as dimension lines to be added to the design drawing, and data is added to the work file 29 (step 130).
3).

The application program 31 retrieves lower order data from the work file 29 (step 1
304), and it is determined whether or not lower order data exists (step 1305). Here, the lower order data refers to data having a lower priority on the priority table 141 shown in FIG. For example, first, as the lower ranking data,
The dimension extension line data is retrieved.

If the lower rank data exists, then the higher rank data is retrieved from the work file 29 (step 1306) and it is judged whether or not the upper rank data exists (step 1307). Here, the higher ranking data is
This indicates data having a high priority on the priority table 141 shown in FIG. For example, first, equipment data is searched as high-ranking data.

If there is no upper rank data, the lower rank is advanced by one (step 1308), step 13
The processing after 04 is performed. Raising the lower rank by one means, for example, on the priority table 141 shown in FIG.
This means that the data to be searched is the second from the bottom (former tube extraction data).

If there is upper rank data, it is checked whether or not there is an intersection between the extracted lower rank data and upper rank data (step 1309).

If there is no intersection, the upper rank is moved down by one (step 1310), and the processes from step 1306 are performed. Decreasing the upper rank by one means that, for example, on the priority table 141 shown in FIG. 12, the data to be searched is the second highest (topographic data).

If there is an intersection, the coordinates (X,
Y) and the slope θ of the higher rank data forming the intersection (step 1311), and as shown in FIG. 18, the type number of the lower rank data, the record number, the intersection coordinates, and the slope θ.
Are stored in the intersection data table 161 (step 1
312).

As shown in FIG. 17, for example, the terrain line 15
The slope of the topography 157, which is the higher order data at the intersection 153 between the 7 and the dimension extension line 151, is θ5.

In step 1305, if the lower order data does not exist, the application program 31 rearranges the data based on the size of the Y coordinate of the intersection coordinates of the intersection data table 161, and as shown in FIG. The data is stored in the data table 171 (step 131).
3).

Next, the lower order data stored in the intersection data table 171 is taken out from the work file 29, and the contents of the lower order data are edited based on the intersection coordinates stored in the intersection data table 171 (step 13).
14).

FIG. 16 shows step 1314 in detail. Two jump points separated from the intersection coordinates stored in the intersection data table 171 by Δ and a line segment determined by the two jump points are obtained (step 160).
1).

FIG. 20 is a diagram showing the relationship between the intersections and the jump points. The terrain lines 157, 158, 159 and the extension line 151 have three intersections 153, 191, 193.
There is. The coordinate values of the intersections 153, 191, 193 are calculated in step 1311. Regarding the intersection 153, the two jump points are the jump points 195 and 197 that are separated from the intersection 153 by Δ, and the line segment is the jump point 195 to the jump point 19 on the dimension extension line 151.
The part 196 up to 7 is referred to.

It is determined whether or not there is a portion where the line segments obtained in step 1601 overlap each other (step 160).
2). If there is an overlapping portion, the jump point on the overlapping portion is ignored (step 1603). In FIG. 20, the jump points 201 and 203 will be ignored.

When there is no overlapping portion or when the processing of step 1603 ends, the intersection data table 17
The lower order data stored in 1 is edited based on the calculated jump point (step 1604). Figure 2
Reference numeral 1 is a part of the drawing after editing. FIG. 22 is a record format diagram of the dimension line 201 after editing in FIG. Basic coordinates 303, 317, 321, 323 of the dimension line 201
Are added with jump points 305, 309, 311, 315 and jump flags 307, 313, 319. The lower order data edited in this way is written to the work file 29 (step 1315), the data in the work file 29 is output from the electrostatic plotter 15 (step 1316), and a series of editing operations is completed.

FIG. 23 is an example of a design drawing issued after the editing work. 501 is a road as topographical data, 503
Is a gas pipe as equipment data, 505 is an extension line, 5
Reference numeral 07 indicates a dimension line, and reference numeral 509 indicates a modified pipe extraction line. For example, the modified pipe extraction line 509 and the dimension extension line 505 that overlaps with the road 501 are deleted and displayed.
Note that, in FIG. 23, when a character and a line segment overlap, the line segment is deleted in the overlapping portion, but the applicant has separately filed a patent application for this process. In the above-mentioned embodiment, the intersection of the lines that make up the map is obtained,
The Δ portion from the intersection is deleted from the line segment with the lower priority. However, as shown in FIG. 24, first, an area separated from the prioritized line drawing data 511 by Δ is determined first, and this area and the line drawing are determined. Find the intersections 515 and 517 with the data 513,
As shown in FIG. 25, intersections 515 and 517 of the line drawing data 513.
You may make it delete the space.

Further, in the above-described embodiment, the case where line drawing data of different types overlap each other has been described. However, when line drawing data of the same type overlaps, the line drawing data of the smaller record number is given priority and the line drawing data of the larger record number is given priority. The intersection may be deleted. The edited data may be further stored in the database 17.

As described above, according to the present embodiment, in the mapping system for maps / equipment, etc., an easy-to-see design drawing or the like can be edited and issued by cutting the overlapping portion of the line drawing data based on the priority order. it can.

[0043]

As described above in detail, according to the present invention, in a mapping system such as a map / equipment, a part of overlapping line drawing data is deleted to edit a view that is easy to see.
Can be drawn.

[Brief description of drawings]

FIG. 1 is a diagram showing a hardware configuration of a graphic editing / drawing device according to an embodiment of the present invention.

[Figure 2] Topographic map

[Fig. 3] Record format diagram of topographic data 19

[Fig. 4] Diagram showing equipment

FIG. 5 is a record format diagram of the equipment data 21.

FIG. 6 is a diagram showing dimension lines.

[Figure 7] Dimension line record format diagram

FIG. 8 is a diagram showing dimension extension lines.

FIG. 9: Record format diagram of extension line

FIG. 10 is a view showing a deformed pipe lead-out line.

FIG. 11 is a view showing a modified pipe lead-out line record.

FIG. 12 is a diagram showing a priority order table 141.

FIG. 13 is a flowchart showing graphic editing drawing processing.

FIG. 14 is a flowchart showing a graphic editing drawing process.

FIG. 15 is a flowchart showing a graphic editing drawing process.

FIG. 16 is a flowchart showing a graphic editing drawing process.

FIG. 17 is a diagram showing intersecting dimension extension lines and terrain

FIG. 18 is a diagram showing an intersection data table 161.

FIG. 19 is a diagram showing an intersection data table 171.

FIG. 20 is a diagram showing intersecting extension lines and topography.

[Fig. 21] Diagram showing the extension lines and topography after editing

FIG. 22 is a diagram showing a record format of a dimension extension line after editing.

FIG. 23 is a diagram showing a drawing after editing work.

FIG. 24 is a diagram showing intersecting line drawing data.

FIG. 25 is a diagram showing intersecting line drawing data.

FIG. 26 is a diagram showing a drawing before editing work.

[Explanation of symbols]

 1 ... Host computer 3 ... Display device 5 ... Keyboard 7 ... Digitizer 15 ... Electrostatic plotter 17 ... Database 29 ... Work file 31 ... Application program

Claims (8)

[Claims] 1. A graphic editing / drawing device for appropriately calling and drawing line drawing data stored in a database, and means for calling line drawing data of a predetermined map from the database and saving it in a work file. A means for extracting the line drawing data therein, a means for determining the presence or absence of an intersection between the extracted line drawing data, and a comparison means for comparing the priority of the intersecting line drawing data when the intersection exists A graphic editing / drawing device comprising: cutting means for cutting an intersection of low-priority line drawing data; and means for outputting the edited line drawing data. 2. The graphic editing / drawing device according to claim 1, wherein the line drawing data is topography data, facility data, dimension line data, dimension auxiliary line data, and deformed pipe extraction data. 3. The cutting means comprises means for obtaining an intersection of two line drawing data, and means for cutting out a portion within a predetermined range from the intersection of the line drawing data of lower priority. The graphic editing / drawing device according to claim 1. 4. The cutting means calculates a region away from the line drawing data having a higher priority by a predetermined distance, and cuts out a portion included in the region of the line drawing data having a lower priority. The graphic editing / drawing device according to claim 1, further comprising: 5. The graphic editing / drawing device according to claim 1, wherein the priority order is determined according to the type of line drawing data. 6. The figure editing / drawing device according to claim 5, wherein the order of priority is set in the order of equipment data, topographical data, dimension line data, deformed pipe extraction data, and dimension auxiliary line data. 7. The graphic editing / drawing device according to claim 1, wherein among line drawing data of the same type, the one having a smaller record number has a higher priority. 8. The figure editing / drawing device according to claim 1, further comprising means for storing the edited line drawing data in the database.