JP2963320B2 - Drawing display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses computer graphic technology to draw a drawing in which raster data and vector data are superimposed on an output device such as a CRT. The present invention relates to a drawing display device that corrects a part of a drawing drawn by using vector data.

[0002]

2. Description of the Related Art FIG. 15 is a block diagram showing a conventional drawing display device, and FIG. 16 is a drawing showing drawing data in a drawing step of the drawing display device. A similar structure of this conventional drawing display device is disclosed in Japanese Patent Application Laid-Open No. 62-147570. In FIG. 15, reference numeral 1 denotes a master computer. The master computer 1 includes a server 2 including a CPU (central processing unit) not shown and an internal ROM (read only memory) not shown, an input device 3, and a memory as a memory. It has a main memory 4 and an output device such as a CRT (not shown). In the internal ROM of the server 2, a program as a system base for the master computer 1 for operating the CPU of the server 1 is stored. In the main memory 4, raster data relating to topographic maps and vectors relating to equipment maps are stored. Drawing data composed of the data is stored in advance. Reference numeral 5 denotes a data line, and reference numeral 6 denotes a plurality of slave computers constituting a plurality of terminal devices of a workstation connected in parallel to the server 2 of the master computer 1 by a data line 5. Each of the slave computers 6 includes a processing unit 7 such as a CPU, a memory 8, a CRT (cathode ray tube) 9, a keyboard 10 and a mouse 1.
And 1. The memory 8, CRT 9, keyboard 10 and mouse 11 are individually connected to the processing unit 7. The memory 8 stores a program as a system base for the slave computer 6 for operating the processing unit 7. The CRT 9 constitutes an output device of the slave computer 6, and includes a keyboard 10 and a mouse 1
1 constitutes an input device of the slave computer 6.

Next, the operation of the conventional drawing display device will be described. For example, when the slave computer 6 draws a drawing in which a topographic map and a facility map of a certain area are superimposed on the CRT 9, when the operator specifies the certain area to be drawn using the keyboard 10 or the mouse 11, The processing unit 7 transmits the designation of the certain area to the server 2 through the data line 5. The server 2 that has received the designation of the certain area, based on the topographic map data 4a and the equipment map data 4b stored in the main memory 4, reads the FIG.
6 is cut out from the topographic map data 4b-1 as shown in FIG. 6a and the facility map data 4b-1 as shown in FIG. 16b corresponding to the specified area, and the cut out topographic map data is obtained. 4a-1 and the facility diagram data 4b-1 are transmitted through the data line 5 to the processing unit 7 of the slave computer 6 which has transmitted the designation of the certain area.
The processing unit 7 superimposes the cut-out data sent from the server 2 according to a program stored in the memory 8 in advance, and draws a drawing corresponding to the drawing data 4n as shown in FIG. .

By the way, there are generally two types of topographic map data used for a drawing display device, raster data and vector data. Although this raster data which can be advantageously be created simply by reading the topographical map drawn in a shape including complex shapes such as curves on a piece of paper with the image Lee Da stored in the memory (storage), There is a drawback in that it is difficult to correct raster data relating to a topographic map including the complicated shape stored in the memory. Also,
The vector data can be created by a computer method or a human input method. The vectorization by this computer is a method of reading a topographic map drawn on paper or the like as image data, tracking the image data like a switch, and recognizing a straight line, a symbol, or the like, and performing vectorization. Since it is difficult to vectorize%, it is the current situation that humans input and input incomprehensible solutions that cannot be determined by a computer. Vectorization by input in a human system is a method of vectorizing while inputting the coordinates of points and symbols on the screen of a CRT while looking at a topographic map drawn on paper or the like. As described above, it is difficult to vectorize a topographic map drawn in a shape including a complicated shape such as a curve on paper into a simple topographic map such as a straight line. This has the advantage that the figure can be easily modified.

[0005]

In the above-mentioned conventional drawing display device, the data relating to the topographic map is constituted by raster data as described above, and partial modification of the topographic map is always carried out by changing a city plan or a house. Terrain map data 4a using raster data including complex shapes
Is bitmap data, so it is difficult to make partial corrections on the drawing display device. For this reason, the topographical map data 4a is collected for a certain period of time, for example, once a year or once every six months.
Had been maintained. The maintenance of the topographical map data 4a corrects the topographical map drawn on paper, and converts the topographical map drawn on the paper into a magnetic unit such as a cassette magnetic tape, a floppy disk, or a magnetic tape for each region unit. The topographic map data 4a stored in the main memory is updated by reading the corrected topographic map data recorded on the recording medium and reading the modified topographic map data recorded on the magnetic recording medium with a magnetic reader as an input device (not shown) of the master computer 1. Was. As described above, since a great deal of labor and time is required for maintenance of the topographic map data 4a, the conventional drawing display device using raster data for the topographic map can provide accurate drawings in real time for construction and management of facilities in daily work. There is an inherent problem that it is difficult to obtain immediately.
For this reason, not only site confirmation work is necessarily required at the stage of construction design, but as a result of the site confirmation work, drawings showing the area where construction is performed are said to be indispensable due to city planning, house changes, etc. It has been forced to make corrections, and paperless drawing as one of the important purposes of using the drawing display device has been slow.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and partially corrects raster data in drawing data stored in a memory with vector data in real time to provide equipment for daily work. It is an object of the present invention to provide a drawing display device capable of promptly obtaining an accurate drawing required for construction and management of the drawing and also promoting paperless printing.

[0007]

A first aspect of the present invention is the first aspect.
As shown in FIG. 1, the drawing display device according to the present invention comprises a memory A, a reading means B, a drawing means C, an output device D, a correction area designating means E, a masking means F, a correction drawing making means G and a correction display means H And the registration means I, and the drawing data constituted by the raster data relating to the topographic maps and the vector data relating to the facility maps are stored in the memory A in advance, and the operator operates the reading means B to draw. For example, when a readout instruction for a certain area is given,
The reading means B cuts out and reads out the drawing data of a certain area designated by the reading instruction from the drawing data stored in the memory A, and the drawing means C outputs a drawing corresponding to the read drawing data. Draw on D. In the state where the drawing of a certain area is drawn on the output means D, the operator operates the correction area designating means E while viewing the drawing of the certain area drawn on the output device D, and outputs raster data to the output device D. When it is specified that the correction area in the drawing already drawn is surrounded by a polygon composed of a line group using vector data, the mask means F erases the raster data in the correction area in the specified output device D. Correction area mask data is generated, and the correction area is filled and masked. In a state where the correction region in the output device D is masked, the operator operates the correction diagram creating means G to create a correction diagram by vector data in the masked correction region in the output device D. A masking portion of a drawing of a region already drawn on the output device D by means H by superimposing the corrected drawing data as the vector data and the corrected area mask data on the already read drawing data. While the registering means I registers the corrected drawing data and the mask data in the memory A.

According to a second aspect of the present invention, as shown in FIG. 1, a layer display control means H1 is provided in the correction display means H in the first aspect of the invention. The means H1 is configured to control display / non-display of the drawing data, the corrected drawing data, and the corrected area mask data.

According to a third aspect of the present invention, there is provided a drawing display device as shown in FIG.
The mask means F according to the invention is provided with a mask color setting means F1, and the mask color setting means F1 is configured to variably set a background color for masking the inside of the correction area designated by the mask means F. ing.

According to a fourth aspect of the present invention, there is provided a drawing display device as shown in FIG.
The masking means F according to the invention is provided with masking color determining means F2, and the masking color determining means F2 calculates a background color for masking the correction area designated by the masking means F from raster data in the correction area. It is configured to be determined according to the detected color.

According to a fifth aspect of the present invention, as shown in FIG. 1, a master computer J constitutes a main memory as the memory A, and is connected to the master computer J in parallel. A plurality of slave computers K constitute reading means B, drawing means C, output device D, correction area designating means E, mask means F, correction drawing making means G, correction display means H, and registration means I.

[0012]

The drawing display device according to the first invention reads drawing data from the memory A in response to a read instruction for drawing by the operator, and draws a drawing corresponding to the drawing data on the output device D. Then, already by <br/> specified correction area by the operator during the drawn drawing raster data, the raster data in the correction area in the drawing at the specified output device D are erased to the output unit D , The correction area is filled and masked. The operator creates a correction map with vector data in the masked correction area, so that correction map data as vector data and correction area mask data in which the raster data has been erased are displayed on the output device. The part specified by the polygon is corrected and registered in the memory A.

The drawing display device according to the second invention renders various drawings before and after correction, such as a drawing before correction, a drawing after correction, and a drawing in which the correction area is plain, on the output device D.

[0014] To mask the background color the drawing display device arbitrarily set the correction area in accordance with the third aspect of the invention.

The drawing display apparatus according to the fourth invention masks the inside of the correction area with a background color corresponding to the color detected from the raster data.

The drawing display device according to the fifth aspect of the present invention is a drawing display device comprising raster data stored in advance in a main memory A of a master computer J. The drawing data is partially vectorized from a plurality of slave computers K connected to the master computer K. The data is corrected in real time and stored in the main memory A of the master computer J.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will now be described with reference to FIGS.
The same parts as those in the above-described conventional example are denoted by the same reference numerals and described.
I do. Example 1.  FIG. 2 shows a drawing display device as a first embodiment of the present invention.
FIG. 3 is a block diagram showing a modification of the drawing display device of the first embodiment.
FIG. 4 is a diagram showing various data in the normal process, and FIG.
FIG. 5 is a flowchart showing the vector data of the first embodiment.
FIG. 6 is an explanatory diagram of a process of creating a corrected drawing according to FIG.

In FIG. 2, a master computer 1 having a server 2, an input device 3, and a main memory 4 as the memory A has a processing unit 7, a memory 8, a CRT 9, a keyboard 10, a mouse 11, and a printer 12. A plurality of slave computers 6 are connected in parallel by a data line 5, and these slave computers 6 constitute a plurality of terminal devices of a workstation. The printer 12 is an output device that prints the drawing drawn on the CRT 9 on paper and outputs it.

Drawing data is stored in the main memory 4 of the master computer 1 in advance, and the drawing data is composed of raster data relating to topographic maps and vector data relating to equipment maps. The raster data is read from a topographic map drawn on paper or the like by an image reader (not shown) constituting the input device 3 of the master computer 1, and the server 2 transmits image data related to the topographic map to the server 2.
The topographic map data 4a is stored in the main memory 4 in accordance with the program as the system base stored in the internal ROM.
Created by storing as The vector data is input to the server 2 as vectorized data using a mouse, keyboard, or the like (not shown) constituting the input device 3 of the master computer 1 based on the equipment drawing drawn on paper or the like. The data is created by the server 2 storing the equipment diagram data 4b in the main memory 4 in accordance with the program. Also,
In the main memory 4, separately from the above-mentioned drawing data, corrected area mask data 4c to be described later and corrected topographic map data 4d to be described later as corrected map data are registered.

Each of the processing units 7 of the plurality of slave computers 6 includes the reading means B, the drawing means C, the correction area designating means E, the mask means F, the correction drawing creation means G, and the correction display means H shown in FIG. The processing unit 7 includes a topographic map data 4a-1 and a facility map data 4b stored in the main memory 4 of the master computer 1. A drawing obtained by cutting out and superimposing the figure data 4b-1 is referred to as CRT9.
Is drawn on the screen 9-1. For example, in one of the plurality of slave computers 6, the operator operates the keyboard 10 or the mouse 11 to give a reading instruction of a certain area to be drawn to the processing unit 7, so that the processing unit 7 The received read instruction for a certain area is transmitted to the server 2 through the data line 5, and the server 2
Are the topographic map data 4a-1 (see FIG. 3a) and the equipment map data 4b-1 of a certain area designated by the readout instruction from the topographic map data 4a and the equipment map data 4b stored in the main memory 4. The readout means B built in the processing unit 7 cuts out the data (see FIG. 3B) and sends it to the processing unit 7 which has sent the readout instruction of the certain area through the data line 5 to the destination. By exchanging signals with the master computer 1, for example, topographic map data 4a-1 in a certain area shown in FIG. 3A and facility map data 4b in a certain area shown in FIG. -1 is read. The read topographical map data 4a-1 and facility map data 4b-1 are superimposed by the operation of the drawing means D built in the processing unit 7 and are divided on the screen 9-1 of the CRT 9. Is drawn in the drawing display window 9-2.

On the CRT 9, topographic map data 4 of a certain area
In a state where the drawing in which the a-1 and the facility drawing data 4b-1 of a certain area are superimposed is drawn, the operator sets the C
While viewing a drawing of a certain area drawn on the RT9, a topographic map correction button 9- constituted by a touch switch displayed on the right side of the drawing display window 9-1 on the screen 9-1 of the CRT9.
By selecting and turning on 3, the correction area designating means E incorporated in the processing section 7 is activated. When the correction area designating means E is activated, the operator
By manipulating 1, a correction area in the topographic map drawn with raster data on the screen 9-1 of the CRT 9 is designated by surrounding it with a polygon 13 (see FIG. 3C) composed of a line group using vector data.

When the correction area is specified by the polygon 13, the operator presses the execution button 9- constituted by a touch switch displayed on the right side of the drawing display window 9-2 on the screen 9-1 of the CRT 9. By selecting and turning on 4, the masking means F incorporated in the processing unit 7 is activated, and this masking means F is placed in the correction area on the screen 9-1 of the CRT 9 designated by being surrounded by the polygon 13. The correction area mask data 4c-1 shown in FIG. 3C for deleting the raster data is generated, and the correction area on the screen 9-1 is filled with a fixed background color and masked.

When the correction area on the screen 9-1 of the CRT 9 is masked, the correction drawing creating means G incorporated in the processing section 7 is activated. In a state in which the correction map creating means G is activated, the operator operates the mouse 11 to correct the masked CRT 9 in the correction area on the screen 9-1 with vector data as shown in FIG. When a corrected topographic map as a map is created, the corrected map creating means G creates the corrected topographic map data 4d-1 shown in FIG. 3D as vector data representing the created corrected topographic map.

After the completion of the creation of the corrected topographic map data, the operator selects the execution button 9-4 again and turns it on, so that the correction display means J built in the processing section 7 is provided.
Is activated, and the correction display means H reads the corrected area mask data 4c-1 of the certain area and the corrected topographic map data 4d-1 of the certain area created from the main memory 4. The CRT 9 is superimposed on the topographic map data 4a-1 of the area and the equipment map data 4b-1 of a certain area.
The masked portion of the drawing of a certain area already drawn on the CRT 9 is corrected by drawing in the drawing display window 9-2 on the screen 9-1. As a result, C
In the drawing display window 9-2 in the screen 9-1 of the RT9, a corrected drawing corresponding to the corrected drawing data 4n-1 as shown in FIG. 3E is drawn. The corrected drawing data 4n-1 is the corrected topographic map data 4d-1 in which the corrected area in the drawing in which the topographic map data 4a-1 of the certain area and the facility map data 4b-1 of the certain area are superimposed is changed. It has been replaced.

When the corrected drawing is drawn on the CRT 9, the operator operates the registration button 9-composed of touch switches displayed on the right side of the drawing display window 9-2 on the screen 9-1 of the CRT 9. By selecting and turning on 5, the registration means I built in the processing unit 7 is activated,
The registration means I corrects the topographic map data 4d (corrected topographic map data 4d-1 of a certain area shown in FIG. 2d) composed of the above vector data and corrected area mask data 4c ( The correction area mask data 4c-1) of a certain area shown in FIG. 2E is registered in the main memory 4. Specifically, the processing unit 7 transmits the corrected topographic map data 4d (4d-1) and the corrected area mask data 4c (4c-1), which are vector data, to the server 2 of the master computer 1 through the data line 5, and this server 2 registers the received corrected topographic map data 4d (4d-1) and the corrected area mask data 4c (4c-1) in the main memory 4.

Next, the operation of the drawing display device of the first embodiment will be described with reference to the flowchart shown in FIG. That is,
Master computer 1 and multiple slave computers 6
In a state in which the communication is started so that communication is possible, the operator designates a certain area to be drawn on one of the plurality of slave computers 6, and designates the certain area as the slave computer 6. Is transmitted to the master computer 1 and the processing in step 101 is started. In step 102, the topographic map data 4a of the specified area is determined from the topographic map data 4b and the facility map data 4c stored in the main memory 4. -1 and facility map data 4b-1 of a specified certain area are cut out, and the cut out topographic map data 4a-1 of a certain area are cut out.
The drawing that overlaps with the equipment drawing data 4b-1 is a CRT
9 is drawn. In this state, after the operator selects and turns on the topographical map correction button 9-3 as shown in step 103, the operator performs CR operation as shown in step 104.
A correction area for correcting a drawing representing a certain area drawn in T9 is to be surrounded by a polygon 13, and further, step 1
When the operator selects the execution button 9-4 and turns it on as shown in 05, correction area mask data for erasing raster data relating to the topographic map in the correction area surrounded by the polygon 13 is generated in step 106. At the same time, the inside of the correction area is filled with a predetermined fixed background color. In this state, the operator operates the mouse 11 to draw a corrected topographic map in the correction area filled with the background color on the CRT 9 and masked as shown in step 107, and then the operator moves to step 108. When the execution button 9-4 is selected again and turned on,
9, corrected topographical map data is generated while the background color in the corrected area is deleted, and the entire corrected drawing is C
It is drawn on RT9. In this state, when the operator selects and turns on the registration button 9-5 as shown in step 110, in step 110, the corrected area mask data 4c-1 and the corrected topographic map data 4d-1 are stored in the main memory 4. Registered in. Thus, one cycle of the drawing display including the drawing processing of the uncorrected drawing in a certain area and the correction drawing processing of the drawing in which a part of the drawing is corrected is completed. In one cycle of this drawing display, although not shown as steps in the flowchart, after the drawing processing of the uncorrected drawing of the above-mentioned certain area and after the drawing processing of the drawing in which a part of the drawing is corrected, After the operator activates the printer 12, the user issues a print instruction by operating either the keyboard 10 or the mouse 11, and the drawing drawn in the drawing display window 9-2 on the screen 9-1 of the CRT 9 is displayed. Is printed on paper by the printer 12 and output.

In short, according to the first embodiment, the slave computer 6 draws an uncorrected drawing of an area in a certain area through dialogue with an operator and corrects a drawing in which a part of the drawing is corrected. A drawing process is performed. Specifically, drawing data composed of raster data related to topographic maps and the like and vector data related to equipment maps and the like is stored in the main memory 4 of the master computer 1 in advance, and the master computer 1 and the plurality of slave computers 6 When the operator gives a read instruction of a certain area to be drawn to any of the plurality of slave computers 6 in a state where communication between the slave computers 6 is enabled, the slave to which the read instruction of this certain area is given is given. The computer 6 cuts out and reads out the drawing data of a certain area designated by the read instruction from the drawing data stored in the main memory 4 and reads out the topographic map data 4a-1 consisting of raster data of the certain area and vector data. The drawing synthesized with the equipment drawing data 4b-1 is To draw to CRT9 of over 6 other. This CDT9
In the state where a drawing of a certain area is drawn, the operator operates the mouse 11 of the slave computer 6 to designate the correction area in the drawing already drawn with the raster data on the CRT 9 by the polygon 13. Then, the slave computer 6 masks the designated correction area on the CRT 9. In the state where the correction area on the CRT 9 is masked, the operator operates the mouse 11 of the slave computer 6 to operate the masked CRT 9.
When the corrected topographic map is drawn with the vector data in the correction area in the above, the corrected topographic map data 4d including the vector data is drawn.
-1 and the correction area mask data 4c-1 are stored in the CRT 9
The masked portion of the drawing of a certain area which has already been drawn is corrected, and the corrected drawing data 4n- of the certain area after the correction is corrected.
The drawing corresponding to 1 is the CR of the slave computer 6.
The slave computer 6 sends the corrected topographic map data 4d-1 and the corrected area mask data 4c-1 to the master computer 1 and registers them in the main memory 4 while being drawn at T9. As a result, drawing data such as topographic map data composed of raster data stored in advance in the main memory 4 can be partially corrected and stored in real time with vector data, so that construction and management of facilities in daily work can be performed. You can get the exact drawing you need right away. Moreover, drawing data such as topographic map data composed of raster data stored in advance in the main memory 4 of the master computer 1 is partially vectorized from a plurality of slave computers 6 connected in parallel to the master computer 1 via a data line 5. Since the data is corrected in real time and stored in the main memory 4 of the master computer 1, the drawing data such as the current accurate topographical map data for each area where the plurality of slave computers 6 are arranged are mutually used. be able to.

Referring to FIG. 5, a process of drawing a corrected topographic map as vector data in the polygon 13 representing the correction area with the mouse 11 will be described. For example, when a plurality of straight lines as shown in FIG. 5A are drawn in parallel, the cursor is moved to the mouse 11 at the position of the point P1 as shown in FIG.
By clicking with the mouse 11 and clicking the cursor with the mouse 11 at the position of the point P2,
2 is drawn in the polygon 13 on the CRT 9. Next, the cursor is clicked at the position of the point P4 shown in FIG.
By clicking the cursor at the position of the point P5, a straight line 14-2 parallel to the straight line 14-1 is drawn in the polygon 13 on the CRT 9 as shown in FIG. That is, the user clicks the cursor with the mouse 11 to generate a straight line 14-1, 1 to be generated as vector data.
By determining the coordinate positions of the start point and the end point of 4-2, the straight lines 14-1 and 14-2 are drawn on the screen of the CRT 9, and the figure becomes vector data as it is.

Embodiment 2.  FIG. 6 shows a drawing display device as a second embodiment of the present invention.
FIG. 7 is a block diagram showing a modification of the drawing display device according to the second embodiment.
FIG. 8 is a diagram showing various data in the normal process, and FIG.
Specify the combination of display layers in the drawing display device
FIG. 9 is a diagram showing layer display control data 4e, and FIG.
9 is a flowchart of Example 2.

In FIG. 6, the drawing display device of the second embodiment has a configuration in which the layer display control means H1 shown in FIG. 1 is added to the slave computer 6 of the first embodiment shown in FIG. The layer display control data 4e is stored in advance together with the topographic map data 4a and the facility map data 4b. 7, FIG. 7A shows topographic map data 4a-1 of a specified area, FIG. 7B shows facility map data 4b-1 of a specified area, and FIG. 7C shows a specified certain area data. Correction area mask data 4c-
1, FIG. D shows the corrected topographic map data 4d-1 in a specified area, and FIGS. E, f and g show a plurality of corrected drawing data variously selected by the layer display control means H1. 4n-1, 4n-2 and 4n-3 are shown.
In FIG. 8, the layer display control data 4e indicates whether or not to display each layer of the topographic map data 4a-1, the facility map data 4b-1, the correction area mask data 4c-1, and the corrected topographic map data 4d-1. This defines the relationship between the designated display / non-display data and the corrected topographic map data 4n-1, 4n-2, 4n-3 displayed on the CRT 9 as a drawing. That is, in case 1 of the layer display control data 4e, each layer of the topographic map data 4a-1, the facility map data 4b-1, the correction area mask data 4c-1, and the corrected topographic map data 4d-1 is "display". In case 2 in the layer display control data 4e, the layer of the topographic map data 4a-1 is "display".
And the layers of the facility map data 4b-1, the correction area mask data 4c-1, and the corrected topographic map data 4d-1 are defined as "non-display", and in the case of case 3 in the layer display control data 4e. Indicates that the layers of the topographic map data 4a-1 and the correction area mask data 4c-1 are "displayed" and the facility map data 4
It is defined that each layer of the b-1 and the corrected topographic map data 4d-1 is "non-display".

Next, the operation of the drawing display apparatus of the second embodiment will be described with reference to the flowchart shown in FIG. That is, in a state where the master computer 1 and the plurality of slave computers 6 are activated to be able to communicate with each other, the designation of a certain area to be drawn from one of the plurality of slave computers 6 is transmitted to the master computer 1. The process starts in step 201. In step 202, which corresponds to a step in which steps 102 to 107 of the first embodiment are combined into one, the drawing data of a certain area designated by the read instruction is cut out from the drawing data stored in the main memory 4. Then, a figure in which the topographic map data 4a-1 as raster data and the facility map data 4b-1 as vector data of the certain area is synthesized is drawn on the CRT 9 of the slave computer 6, and in this state, the operator By operating the mouse 11 of the slave computer 6 and instructing the CRT 9 to enclose the correction area in the drawing already drawn with the raster data with the polygon 13, correction area mask data is created and the correction area on the CRT 9 is masked. The operator further operates the mouse 11 of the slave computer 6. By operating the above, the drawing of the corrected topographic map with vector data is completed in the masked corrected area of the CRT 9, and the corrected topographic map data 4 d-1 and the corrected area mask memory 4 c-1 having been drawn are stored in the slave computer 6. Is registered in the main memory 4 of the master computer 1, and the process proceeds to step 203. In step 203, the processing unit 7 of the one slave computer 6 corrects the topographic map data 4a-1, facility map data 4b-1, correction area mask data 4c-1, and correction of a drawing of a certain area designated from the main memory 4. The topographic map data 4d-1 and the layer display control data 4e are read into the memory 8 of the slave computer 6. In step 204, the layer display control data 4e is displayed on the screen 9 of the CRT 9 of the slave computer 6.
1 is displayed in a portion other than the drawing display window 9-2, and the operator who looks at the displayed layer display control data 4e operates the keyboard 10 or the mouse 11 to display a case in the layer display control data 4e. By selecting the case desired by the user from among 1 to 3, various graphic data after modification corresponding to the case in the selected layer display control data 4e while passing through the processing steps shown in steps 205 to 212. Drawings corresponding to 4n-1, 4n-2, and 4n-3 are drawn on the CRT 9.

Specifically, (1) when case 1 in the layer display control data 4e is selected, step 205,
All of 207, 209 and 211 are judged to be "display", and the processing steps of steps 206, 208, 210 and 212 are started. As a result, in the case 1, the drawing corresponding to the corrected drawing data 4n−1 shown in FIG. 7E is drawn on the CRT 9. This corrected drawing data 4n-1
FIG. 7A is a superposition of FIGS. 7A to 7D.

(2) When case 2 in the layer display control data 4e is selected, only step 205 is "display".
Is determined, and steps 207, 209, and 211 are each determined to be "non-display." Therefore, only the processing step of step 206 is started, and steps 208, 210, and 212 are started.
Each processing step stops. As a result, in this case 2, the corrected drawing data 4n-2 shown in FIG.
Is drawn on the CRT 9. The corrected drawing data 4n-2 is the topographic map data 4a-1 in FIG.
Is the same as

(3) When case 3 in the layer display control data 4e is selected, each of steps 205 and 209 is judged as "display", and each of steps 207 and 211 is judged as "non-display". Step 20
6, 210, respectively, are started, and step 20 is executed.
8, 212, respectively. As a result,
In this case 3, a drawing corresponding to the corrected drawing data 4n-3 shown in FIG. 7G is drawn on the CRT 9. The corrected drawing data 4n-3 is obtained by superposing the diagrams a and c in FIG.

As a result, one cycle of the drawing display including the processing of drawing the uncorrected drawing of a certain area and the drawing processing of correcting the drawing in which a part of the drawing is corrected in the second embodiment is completed. In one cycle of this drawing display, although not shown as steps in the flowchart, after the drawing processing of the uncorrected drawing of the above-mentioned certain area and the corrected drawing processing of the drawing in which a part of the drawing has been corrected, , After the operator has activated the printer 12, the keyboard 1
When a print instruction is given by operating the mouse 0 or the mouse 11, the drawing display window 9- 9 on the screen 9-1 of the CRT 9 is displayed.
2 can, of course, be printed on paper by the printer 12 and output.

In short, according to the second embodiment, drawing data such as topographic map data 4a composed of raster data previously stored in the main memory 4 as in the first embodiment is partially corrected in real time with vector data. In addition to various corrected graphic data 4n-1 before and after correction based on the layer display control data 4e,
The drawings corresponding to 4n-2 and 4n-3 can be easily confirmed.

Embodiment 3.  FIG. 10 shows a drawing display device as a third embodiment of the present invention.
FIG. 11 is a flowchart of the third embodiment.
You.

Referring to FIG. 10, in the drawing display device of the third embodiment, the mask means F of the drawing display device of the first embodiment shown in FIG. Mask color setting data 4 in which several kinds of color data are defined together with the data 4a and the equipment drawing data 4b
f is stored in advance.

Next, the operation of the drawing display apparatus of the third embodiment will be described with reference to the flowchart shown in FIG. That is, in a state where the master computer 1 and the plurality of slave computers 6 are activated to be able to communicate with each other, the designation of a certain area to be drawn from one of the plurality of slave computers 6 is transmitted to the master computer 1. When the process in step 301 starts, step 302
In the above, the topographic map data 4a-1 of the specified area and the equipment map data 4b-1 of the specified area are cut out from the topographic map data 4a and the equipment map data 4b stored in the main memory 4. An overlapped drawing of the cut-out topographic map data 4a-1 and the facility map data 4b-1 of a certain area is drawn on the CRT 9. In this state, after the operator selects and turns on the topographical map correction button 9-3 as shown in step 303, the operator draws a certain area drawn on the CRT 9 as shown in step 304. When the operator selects the execution button 9-4 to turn on the correction area as shown in step 305, the slave computer 6 masks the main memory 4 from the main memory 4 in step 305. The color setting data 4f is read. And step 30
In FIG. 7, the mask color setting data 4f is displayed in a portion other than the window 9-2 in the screen 9-1 of the CRT 9 of the slave computer 6, and the operator who sees the displayed mask color setting data 4f operates the keyboard 10 or Mouse 11
Is operated to specify the desired color data from the mask color setting data 4f.
The correction area surrounded by 3 is the mask color setting data 4f.
Corrected area mask data that is filled with the background color and that erases raster data related to the topographic map in the corrected area is generated. In this state, the operator operates the mouse 11 and the C
After drawing the corrected topographic map in the masked correction area in RT9, when the operator again selects and turns on the execution button 9-4 as shown in step 309, step 31
In the case of 0, the corrected topographical map data is generated while the background color in the corrected area is erased, and the corrected whole drawing is C
It is drawn on RT9. In this state, when the operator selects and turns on the registration button 9-5 as shown in step 311, in step 312, the corrected area mask data 4c-1 and the corrected topographic map data 4d-1 are stored in the main memory 4. Registered in. As a result, one cycle of drawing display consisting of drawing processing of an uncorrected drawing in a certain area and correction drawing processing of a drawing in which a part of the drawing has been corrected is completed. Although not shown as steps in the flowchart, the operator activates the printer 12 after the drawing processing of the uncorrected drawing in the above-described certain area and after the drawing processing of the drawing in which a part of the drawing is corrected. After that, by giving a print instruction by operating the keyboard 10 or the mouse 11, the CRT 9
Of course, the drawing drawn in the window 9-2 in the screen 9-1 of FIG.

In short, according to the third embodiment, drawing data such as topographic map data consisting of raster data previously stored in the main memory 4 as in the first embodiment is partially corrected in real time with vector data. In addition to the fact that the background color for filling the correction area on the CRT 9 can be easily selected based on the mask color setting data 4f, the correction work can be easily performed.

Embodiment 4.  FIG. 12 shows a drawing display device as a fourth embodiment of the present invention.
FIG. 13 shows the background color data 4g of the fourth embodiment.
FIG. 14 is a flowchart of the fourth embodiment.
You.

In FIG. 12, the drawing display device of the fourth embodiment is provided with a mask color determining means F2 in the masking means F of the drawing display device of the first embodiment shown in FIG. The background color for filling the corrected area is automatically determined as the color detected from the raster data in the corrected area, and background color data 4g is stored in advance in the main memory 4 along with topographic map data 4a and facility map data 4b. Have been. The background color data 4g is created based on the ratio of red (red: R), green (green: G), and blue (blue: B) of the raster data based on the color drawing as shown in FIG. ing.

Next, the operation of the drawing display device of the fourth embodiment will be described with reference to the flowchart shown in FIG. That is, in a state where the master computer 1 and the plurality of slave computers 6 are activated to be able to communicate with each other, the designation of a certain area to be drawn from one of the plurality of slave computers 6 is transmitted to the master computer 1. When the process in step 401 starts, step 4
02, topographic map data 4b stored in the main memory 4
And the facility map data 4c, the topographic map data 4a-1 of the specified area and the facility map data 4b-1 of the specified area are cut out, and the cut out topographic map data of the certain area are cut out. An overlapping drawing of 4a-1 and facility drawing data 4b-1 is drawn on the CRT 9. In this state, after the operator selects and turns on the topographical map correction button 9-3 as shown in Step 403, Step 404
As shown in the figure, a correction area where the operator intends to correct a drawing representing a certain area drawn on the CRT 9 is a polygon 13.
When the operator selects the execution button 9-4 and turns it on as shown in Step 405, Step 406
Then, the slave computer 6 reads the background color data 4g from the main memory 4, and reads R, G, B in the correction area surrounded by the polygon 13 from the background color data 4g.
For example, a value obtained by adding and averaging the dot address data for each is calculated and used as background color data. In step 407, a correction area mask that fills the correction area surrounded by the polygon 13 with the background color automatically determined from the background color data 4g and erases the raster data related to the topographic map in the correction area. Data is generated. In this state, the operator operates the mouse 11 to draw a corrected topographic map in the corrected area filled with the background color on the CRT 9 and masked as shown in step 408, and then the operator moves to step 409. When the execution button 9-4 is again selected and turned on,
In 10, corrected topographic map data is generated while the background color in the corrected area is deleted, and the entire corrected drawing is drawn on the CRT 9. In this state, when the operator selects and turns on the registration button 9-5 as shown in step 411, the correction area mask data 4c-1 and the corrected topographic map data 4d-1 are stored in the main memory 4 in step 412. Registered in. As a result, one cycle of drawing display consisting of drawing processing of an uncorrected drawing in a certain area and correction drawing processing of a drawing in which a part of the drawing has been corrected is completed. Although not shown as steps in the flowchart, the operator activates the printer 12 after the drawing processing of the uncorrected drawing in the above-mentioned area and after the drawing drawing processing of the drawing in which a part of the drawing is corrected. Then, by giving a print instruction by operating the keyboard 10, the drawing drawn in the window 9-2 on the screen 9-1 of the CRT 9 can be printed on paper by the printer 12 and output.

In short, according to the fourth embodiment, drawing data such as topographic map data consisting of raster data previously stored in the main memory 4 as in the first embodiment is partially corrected in real time with vector data. In addition to that, the background color for filling the correction area on the CRT 9 can be automatically determined based on the background color data 4g detected from the raster data in the correction area, and the operability of drawing correction is improved.

In each of the above embodiments, a topographic map is illustrated as raster data. However, a drawing other than a topographic map generated by raster data can be used. A CRT 9 and a keyboard 1 are used for inputting drawing data and setting a background color.
0, an input device other than the mouse 11 such as a light pen can also be applied. Further, as a method of detecting the background color, a method other than the method of adding and averaging each of R, G, and B can be used.
Further, a display device other than the CRT 9 can be applied as the output device.

[0046]

As described above, according to the first aspect of the present invention, drawing data is read from a memory in response to a reading instruction for drawing, and a drawing corresponding to the drawing data is drawn on an output device. The correction area in the drawing already drawn with the raster data is specified as a polygon to generate correction area mask data in which the raster data in the correction area in the specified drawing is erased, and the correction area is also specified. By masking and drawing the corrected drawing with vector data on the masked portion, the corrected drawing data as the vector data and the corrected area mask data are designated by the polygons of the drawing already drawn on the output device. It is configured so that the part is modified and registered in the memory, so the topographic map data etc. Star data can be partially modified in real-time vector data, therefore, there is an effect of promoting even paperless with obtained precise drawing immediately required construction and management of the equipment in daily operations.

According to the second invention, various drawings before and after correction, such as a drawing based on uncorrected raster data, a drawing in which a part of the drawing based on the raster data is corrected by vector data, and a drawing only corrected by vector data. Is configured to be drawn on the output device, so that it is possible to check before and after the correction while performing the correction work, and it is possible to perform the correction work easily and accurately by drawing the drawing to be corrected alone.

According to the third aspect of the present invention, the specified correction area of the drawing based on the raster data is masked with a specific color. Therefore, in the case of a color drawing having a different background color, the mask color is selected. There is an effect that a good-looking accurate drawing can be obtained.

According to the fourth aspect, since the inside of the specified correction area of the drawing based on the raster data is automatically masked with the color detected from the raster data, there are several background colors of the correction area. In such a case, the background color of the original drawing is automatically used, the correction work is good, and there is an effect that a more accurate drawing can be obtained.

According to the fifth aspect, drawing data such as topographic map data consisting of raster data stored in advance in the main memory of the master computer is partially vectorized from a plurality of slave computers connected to the master computer K. Since data is corrected in real time and stored in the main memory of the master computer, data can be used for each area where a plurality of slave computers are located, and more accurate drawings can be efficiently obtained. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing the present invention.

FIG. 2 is a configuration diagram illustrating a drawing display device according to a first embodiment of the present invention;

FIG. 3 is a diagram illustrating various drawing data cut out from a memory according to the first embodiment.

FIG. 4 is a flowchart of the first embodiment.

FIG. 5 is a process chart showing vectorization of a corrected figure according to the first embodiment.

FIG. 6 is a configuration diagram illustrating a drawing display device according to a second embodiment of the present invention.

FIG. 7 is a diagram showing various drawing data and various corrected drawing data cut out from the memory according to the second embodiment.

FIG. 8 is a diagram illustrating layer display control data according to the second embodiment.

FIG. 9 is a flowchart of the second embodiment.

FIG. 10 is a configuration diagram illustrating a drawing display device according to a third embodiment of the present invention.

FIG. 11 is a flowchart of the third embodiment.

FIG. 12 is a configuration diagram illustrating a drawing display device according to a fourth embodiment of the present invention.

FIG. 13 is a table showing background color data according to the fourth embodiment.

FIG. 14 is a flowchart of the fourth embodiment.

FIG. 15 is a configuration diagram showing a conventional drawing display device.

FIG. 16 is a diagram showing various drawing data cut out from a conventional memory.

[Explanation of symbols]

 A memory B readout means C drawing means D output device E correction area designation means F mask means F1 mask color setting means F2 mask color determination means G correction drawing creation means H correction display means H1 layer display control means I registration means J, 1 master Computer K, 6 Slave computer 4 Main memory 4a Topographic map data 4b Facility map data 4c Corrected area mask data 4d Corrected topographic map data 4e Layer display control data 4f Mask color setting data 4g Background color data 13 polygon

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akira Kaneda 1-2-1, Wadazakicho, Hyogo-ku, Kobe-shi Mitsubishi Electric Corporation Control Factory (72) Inventor Takahiro Miyahara 1-chome, Wadasakicho, Hyogo-ku, Kobe-shi No. 1-2 in the control factory of Mitsubishi Electric Corporation (56) References JP-A-4-32971 (JP, A) JP-A-63-255775 (JP, A) (58) Fields investigated (Int. Cl. ⁶⁾ G06T 1/00 G06F 17/30 G09B 29/00

Claims (5)

(57) [Claims] 1. A memory in which drawing data composed of raster data related to a topographic map and vector data related to a facility map are preliminarily stored, and the drawing data is read from this memory in response to a read instruction from an operator. Reading means; drawing means for drawing a drawing corresponding to the drawing data read by the reading means on an output device; and a correction area in the drawing drawn on the output device as raster data by the drawing means from an operator. And a correction area mask for erasing raster data in the correction area of the output device specified by the correction area specification means. Mask means for generating data and masking the correction area; and an output device masked by the mask means. The correction area in
Correction map creation means for creating a correction map with vector data and generating the correction map data by an operation from an operator ; correction map data as vector data created by the correction map creation means; and masking with the mask means Correction display means for correcting a drawing already drawn on the output device by superimposing the corrected correction area mask data on the read drawing data; and storing the correction drawing data and the correction area mask data in the memory. A drawing display device, comprising: registration means for registering. 2. The apparatus according to claim 1, wherein said correction display means includes a layer display control means for controlling display / non-display of the drawing data, the correction drawing data and the correction area mask data. Drawing display device. 3. The apparatus according to claim 1, wherein said masking means comprises mask color setting means for variably setting a background color for masking the designated correction area. Drawing display device according to the description. 4. The apparatus according to claim 1, wherein said masking means comprises mask color determining means for determining a background color for masking the designated correction area in accordance with a color detected from raster data in the correction area. 3. The drawing display device according to claim 1 or claim 2. 5. A plurality of slave computers having an input device, a memory, and an output device are connected in parallel to a master computer having an input device and a memory by a data line,
The memory of the master computer constitutes a main memory in which the drawing data is stored in advance, and the slave computer has the reading means, the pre-drawing means, the correction area designating means, the mask means, the correction drawing creating means, and the correction display. 2. The drawing display apparatus according to claim 1, wherein said drawing means comprises means and said registration means.