JPH07175624A - Drawing display device - Google Patents

Abstract

PURPOSE:To surely and easily recognize a target on a picture without fail by displaying the target while changing the color, and decelerating or stopping scroll speed when that target appears on a screen in the case of retrieving the target while performing scroll. CONSTITUTION:A drawing corresponding to drawing data 3-3 for plotting segmented selectively is plotted on a CRT screen 4-1 of a display device 4. A CPU 1 detects the starting/stopping instruction of a scroll function from a mouse 5-1 or a keyboard 5-2, decides the scroll direction from the relative positions of a cursor 9 and a specified point P decided in advance on the CRT screen 4-1 by detecting the start and moves the drawing at fixed speed. Next, target data 3-5 for retrieval inputted as data expressing the target to be previously retrieved from an input device 5 are retrieved, when the target exists in the drawing under scrolling, the scroll speed is decelerated or stopped and the plotting color of the target is changed into any color different from the plotting color on the screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for drawing on a cathode ray tube (hereinafter referred to as CRT) screen of a display device using computer graphics, and particularly, for drawing on a CRT screen while reading drawing data from a memory. The present invention relates to a drawing display device that scrolls (moves).

[0002]

2. Description of the Related Art FIG. 19 is a block diagram showing a conventional drawing display device. In FIG. 19, 1 is a central processing unit (hereinafter referred to as CPU) of a computer, 2 is a bus, and 3 is a memory. In this memory 3, a program 3-1 as a system base and drawing data 3-2 are stored in advance, and drawing drawing data 3-3 are stored as necessary. A display device 4 has a CRT screen 4-1. An input device 5 is composed of a mouse 5-1, a keyboard 5-2 and an input interface circuit 5-3. Mouse 5-1 accept button 5-11
And an cancel button 5-12, and the input interface circuit 5-3 includes a mouse 5-1 and a keyboard 5-2 and a CPU.
The electrical level adjustment for exchanging data with 1 is performed.

FIG. 20 is a diagram showing an example of the drawing data 3-2. In FIG. 20, the drawing data 3-2 is an area of 1 square km obtained by dividing a topographical map including actual lot numbers and facilities into vertical and horizontal 1 km units.
Mesh), and is composed of a plurality of meshes with reference numerals M1 to M25. The drawing data for one mesh corresponds to the drawing data for one screen of the CRT screen 4-1, that is, the drawing data 3-3 for drawing.

FIG. 21 is a mesh M shown by hatching in FIG.
13 is a diagram showing an example of drawing data 3-3 for drawing corresponding to FIG. In FIG. 21, drawing data for drawing 3-3
Has topographic map data M13-1 representing a topographic map of roads, houses and fields, and equipment map data M13-2 representing facilities such as electric poles and electric wires on the topographic map.

FIG. 22 shows drawing drawing data 3 for moving or scrolling the drawing on the CRT screen 4-1.
It is a figure which shows the production | generation process of -3. In FIG. 22,
Symbols M13 and M13 are used as drawing drawing data 3-3 when the drawing data 3-2 is moved in the drawing moving direction on the CRT screen 4-1 in the drawing moving direction, that is, the scroll direction by a distance ΔX at a certain time interval, that is, at each drawing cycle. -1, M13-
2, ..., M13-n generate drawing drawing data and draw drawing data M13, M13-
1, M13-2, ..., M13-n are displayed on the CRT screen 4-1.
The drawing is sequentially performed, and the drawing is moved, that is, scrolled.
The moving speed of the drawing on the CRT screen 4-1 or the scrolling speed is determined by the moving distance ΔX (1 / drawing cycle) of the drawing.

FIG. 23 is a diagram showing a CRT screen 4-1 for performing the scroll operation. In FIG. 23, 6 is a function button for selecting functions such as attribute inquiry 6-1 and drawing search 6-2 and drawing correction 6-3, and 7 is a scroll start / direction for determining scroll start and scroll direction. A button, 8 is a scroll stop button for instructing to stop scrolling, and 9 is a cursor.

Next, the operation of this conventional drawing display device will be described with reference to FIG.
This will be described using the flowchart of FIG. The computer is started to start the drawing display process, and the operator tries to draw a drawing of a certain area on the CRT screen 4-1 with the mouse 5-.
1 or the keyboard 5-2 to move the cursor 9 to the drawing search button 6 among the function buttons 6 displayed on the CRT screen 4-1.
-2 and click on the operation (press down) of the certain button 5-11, the CPU 1 cuts out drawing data of a certain area corresponding to the job from the drawing data 3-2 stored in advance in the memory 3. The cut drawing data is stored in the memory 3 as drawing drawing data 3-3, and the drawing drawing data 3-3 is drawn on the CRT screen 4-1 of the display device 4. In this state, the operator needs a search targeting equipment or equipment connection or terrain in the drawing drawn on the CRT screen 4-1 and the non-drawing drawing not drawn on the CRT screen 4-1. Then, the drawing drawn on the CRT screen 4-1 is scrolled to search for the target object. This scroll operation is performed by moving the cursor 9 to the scroll start / direction button 7 displayed on the CRT screen 4-1 and clicking the enter button 5-11 to turn it on, and the drawing on the CRT screen 4-1 is selected. The scroll is started at a predetermined scroll speed in the arrow direction (scroll direction).
To end this scrolling, move the cursor 9 to the scroll stop button 8 displayed on the CRT screen 4-1 and press the confirm button 5-
It is performed by clicking on the on operation of 11.

[0008]

Since the conventional drawing display device is configured as described above, the CRT screen 4-
1 When scrolling the drawing on the above, the scroll start / direction selection button 7 and the scroll stop button 8 must be clicked with the mouse 5-1, so that the operability is poor and the responsiveness of business execution is deteriorated. . Also, the scroll direction cannot be changed in any desired direction at any time, and the scroll speed is fixed, so you can move the drawings on the screen at a variable scroll speed that matches the purpose of scrolling, such as searching for a target object. There was a problem that it could not be done.

The present invention has been made to solve the above problems, and the operability of scrolling and business execution can be achieved by automatically setting the scroll direction from a specific point on the screen of the display device to the direction of the cursor. The first purpose is to obtain a drawing display device with improved responsiveness,
A second object of the present invention is to obtain a drawing display device in which the scroll direction and the scroll speed can be changed at any time by automatically setting the scroll direction and the scroll speed from the relative position between the specific point on the screen of the display device and the cursor. The third object is to obtain a drawing display device capable of quickly and accurately and easily searching for a target object by displaying the target object on the screen of the display device in a color different from the drawing on the screen. A fourth object of the present invention is to obtain a drawing display device capable of switching the scroll speed to the page feed speed and being able to speed up the search of the target object by being present in the edge detection area.

[0010]

As shown in FIG. 1, a drawing display device according to the first invention described in claim 1 is as follows.
By operating the position of the cursor B displayed on the screen a of the display device A for drawing the drawing, the drawing drawing data Da obtained by cutting out a part of the drawing data D previously stored in the memory C is stored in the memory C. Drawing data D
Drawing data Da for drawing while moving the cutting position of
And a drawing display having a scroll function for moving the drawings on the screen a of the display device A by sequentially drawing the drawings corresponding to the drawing drawing data Da on the screen a of the display device A. The apparatus includes a detection means E, a determination means F, and a movement means G. When the detection means E detects an instruction to start and stop a scroll function from an operator, the determination means F causes the scroll function from the detection means E. By detecting the start of the drawing drawing data Da, the scrolling direction is determined from the relative position between the cursor B on the screen a of the display device A and the specific point P predetermined on the screen a when the drawing data Da is drawn, and the moving means G is used. Is configured to move the drawing on the screen a of the display device A in the scroll direction from the determining means F.

As shown in FIG. 2, the drawing display device according to the second aspect of the present invention operates the position of the cursor B displayed on the screen a of the display device A for drawing a drawing. And the drawing data D previously stored in the memory C
The drawing drawing data Da obtained by cutting out a part of the drawing data is stored in the memory C, the drawing drawing data Da is sequentially generated while moving the cutting position of the drawing data D, and the drawing corresponding to the drawing drawing data Da is drawn. The display device A
In the drawing display device having the scroll function of moving the drawing on the screen a of the display device A by sequentially drawing on the screen a, the detecting unit E, the calculating unit H, the determining unit F, and the moving unit I are provided. When the detection means E detects an instruction to start and stop the scroll function from the operator, the calculation means H detects the start of the scroll function from the detection means E to detect the start of the scroll function of the display device A when the drawing drawing data Da is generated. While determining the distance between the cursor B on the screen a and a predetermined specific point P on the screen a, and determining the scroll speed, which is the moving speed of the drawing, using the result obtained from the function using this distance as a parameter, The means F detects the activation of the scrolling function from the detecting means E and detects drawing data D for drawing.
The scrolling direction is determined from the relative position between the cursor B on the screen a of the display device A at the time of generation of a and the specific point P previously determined on the screen a, and the moving means I calculates the scrolling direction from the determining means F. The drawing is moved on the screen a of the display device A at the scroll speed from the means H.

As shown in FIG. 3, the drawing display device according to the third aspect of the present invention operates the position of the cursor B displayed on the screen a of the display device A for drawing a drawing. And the drawing data D previously stored in the memory C
The drawing drawing data Da obtained by cutting out a part of the drawing data is stored in the memory C, the drawing drawing data Da is sequentially generated while moving the cutting position of the drawing data D, and the drawing corresponding to the drawing drawing data Da is drawn. The display device A
In the drawing display device having the scroll function of moving the drawing on the screen a of the display device A by sequentially drawing it on the screen a of the display device A, the detection unit E, the determination unit F, the moving unit G, and the setting unit K are determined. A means L and a color-coding means M are provided,
When the detecting means E detects an instruction to start and stop the scroll function from the operator, the deciding means F detects the start of the scroll function from the detecting means E and thereby the drawing drawing data D for drawing.
The scroll direction is determined from the relative position between the cursor B on the screen a of the display device A at the time of generation of a and the specific point P previously determined on the screen a, and the moving means G displays the scroll direction from the determining means F. While moving the drawing on the screen a of the device A, when the setting means K instructs the target object to be searched in the drawing moved by the moving means G by the operation of the operator, the determining means L sets the setting means K. The target by the moving means G is present in the drawing to be moved, and the color-coding means M is moved by the moving means G according to the judgment result from the judging means L that the target is present in the drawing. The target is displayed in a different color from that of the drawing on the screen a by color while stopping or decelerating the scroll speed of the drawing.

As shown in FIG. 4, the drawing display device according to the fourth aspect of the present invention operates the position of the cursor B displayed on the screen a of the display device A for drawing a drawing. And the drawing data D previously stored in the memory C
The drawing drawing data Da obtained by cutting out a part of the drawing data is stored in the memory C, the drawing drawing data Da is sequentially generated while moving the cutting position of the drawing data D, and the drawing corresponding to the drawing drawing data Da is drawn. The display device A
In the drawing display device having a scroll function of moving the drawing on the screen a of the display device by sequentially drawing on the screen a, the detecting unit E, the determining unit F, the moving unit G, the detecting unit Q, and the switching unit. R and a detection means E
When the operator detects an instruction to start and stop the scroll function from the operator, the determination means F detects the start of the scroll function from the detection means E, and the cursor is displayed on the screen a of the display device A when the drawing drawing data Da is generated. While the scrolling direction is determined from the relative position between B and the predetermined point P on the screen a, and the moving means G moves the drawing on the screen a of the display device A in the scrolling direction from the determining means F,
When the detection means Q detects that the scrolling function is activated by the detection means E and detects that the cursor B is stopped in the edge detection area S of the screen a of the display device A at the time of generation of the drawing drawing data Da for a predetermined time or longer, The scroll speed of the drawing moved by the moving means G when the switching means R detects from the detection means Q to the edge detection area S of the cursor B for a certain period of time or more, the scroll speed of the drawing is stored in the memory C of the drawing data D for each page. It is configured to switch to the feed rate.

[0014]

When scrolling the drawing drawn on the screen a, the drawing display device of the first invention moves the cursor B on the screen a with respect to a specific point P such as the center of the screen a and stops it. When a scroll operation is performed, the scroll direction is automatically set from the relative position between the cursor B and the specific point P, and the drawing on the screen a is automatically moved in the scroll direction set at, for example, a predetermined constant moving speed. To do.

When scrolling the drawing drawn on the screen a, the drawing display device of the second invention moves the cursor B on the screen a with respect to a specific point P such as the center of the screen a and stops. , When the scroll operation is performed, the cursor B
The scroll direction is automatically set from the relative position between the specific point P and the specific point P, and the scroll speed corresponding to the distance is automatically set from the distance between the cursor B and the specific point P.
The above drawing moves in the automatically set scroll direction at the automatically set scroll speed.

In the drawing display device of the third invention, when scrolling the drawing drawn on the screen a, a target object for search is set and the screen is displayed with respect to a specific point P such as the center of the screen a. When the cursor B is moved and stopped on a, and the scroll operation is performed, the scroll direction is automatically set from the relative position between the cursor B and the specific point P, and the screen a
While the above drawing automatically moves in the set scroll direction, when the target object appears on the screen a after the scrolling, the scroll speed is stopped or decelerated, and the target object is displayed on the screen a. Are displayed in different colors.

When scrolling the drawing drawn on the screen a, the drawing display device of the fourth invention moves the cursor B on the screen a to a specific point P such as the center of the screen a and stops it. , When the scroll operation is performed, the cursor B
The scroll direction is automatically set based on the relative position between the specified point P and the specific point P, and the drawing on the screen a moves in the scroll direction automatically set. If it exists for a certain period of time,
The scroll speed is changed to the page feed speed to fast forward the screen a.

[0018]

Embodiments of the present invention will now be described with reference to FIGS.
The same parts as those of the above-mentioned conventional example are designated by the same reference numerals and will be described.

Embodiment 1 (corresponding to claim 1). FIG. 5 is a block diagram showing a drawing display device as Embodiment 1 of the present invention, and FIG. 6 is a CRT screen 4-1 (same as screen a in FIG. 1) in which the scroll direction in the drawing processing of Embodiment 1 is determined. 7 is a flow chart of the first embodiment.

In FIG. 5, the computer constituting the drawing display device comprises a CPU 1, to which a memory 3, a display device 4 and an input device 5 are connected by a bus 2. A program 3-1 as a system base and drawing data 3-2 (the same as the drawing data D in FIG. 1) are stored in the memory 3 in advance, and drawing drawings are generated according to the progress of drawing processing. Data 3-3 (the same as the drawing drawing data Da in FIG. 1) is stored each time it is generated. The input device 5 is a mouse 5-1 and a keyboard 5-
2 and the input interface circuit 5-3, the mouse 5-1 is provided with three buttons, a confirm button 5-11, a cancel button 5-12, and a scroll start / stop button 5-13.

The CPU 1 comprises the detecting means E, the determining means F and the moving means G shown in FIG. Selectively cut out drawing data of a certain area from the drawing data 3-2 stored in the memory 3,
This cut-out drawing data is used for drawing drawing data 3-3
CRT screen 4-1 of the display device 4 while storing the drawing corresponding to the drawing drawing data 3-3 in the memory 3 as
Draw on. The CPU 1 is preset with a constant scroll speed for moving the distance ΔX for each drawing cycle. That is, the CPU 1 is the mouse 5 by the operator.
CRT screen when drawing instruction data 3-3 is generated by detecting an instruction to start and stop the scroll function from the keyboard 1 or the keyboard 5-2 and detecting the start of the scroll function 4-1 Cursor 9 (Fig. 1
The same as the cursor B) and the relative position of the predetermined point P on the CRT screen 4-1 are determined, and the scroll direction 10 is determined. Move drawings. In the first embodiment, the specific point P uses the center point of the CRT screen 4-1.

Next, the operation of the drawing display apparatus according to the first embodiment will be described with reference to the flowchart shown in FIG. The computer is started to start the drawing display process, and the input device 4
Event from mouse, mouse 5-1 or keyboard 5-
Input by button operation 2 is monitored, and when an event is entered, it is checked whether or not the scroll start / stop button 5-13 of the mouse 5-1 has been pressed (steps 101 and 102).
Then, when the scroll start / stop button 5-13 is not pressed, the function button corresponding processing is performed by the button operation of the mouse 5-1 or the keyboard 5-2 as the input type. On the contrary, when the scroll start / stop button 5-13 is pressed, the position of the cursor 9 on the CRT screen 4-1 is detected, and the cursor 9 is moved from the specific point P which is the center point of the CRT screen 4-1. Drawing data 3-3 obtained by moving the drawing on the CRT screen 4-1 by ΔX in the direction of the position
2 is cut out from the data and generated, and the generated drawing drawing data 3-2 is drawn on the CRT drawing 4-1 (step 10).
3-106). After that, scroll start / stop button 5-1
If 3 is still pressed, the process returns to step 103, and the scroll is continued by repeating the processes such as the determination of the scroll direction, the drawing drawing data 3-3 generation, the drawing and the pressing of the scroll start / stop button 5-13 are checked. To do. If the pressing of the scroll start / stop button 5-13 is released, the scroll is stopped and the process returns to step 101 to check the presence / absence of an event.

In short, according to the first embodiment, when a drawing of a certain area is drawn on the CRT screen 4-1,
While the scroll start / stop button 5-13 is pressed down, the drawing drawn on the CRT screen 4-1 continues to move at a constant scroll speed from the specific point P to the position of the cursor 9, and the scroll start is started. -The scrolling of the drawing is stopped by releasing the stop button 5-13 released, and the stopped drawing is drawn on the CRT screen 4-1. The scroll direction 10 can be arbitrarily changed only by moving it. In the first embodiment, the case where the graph shown in FIG. 9 is used as the scroll speed function data has been described as an example, but the graph is expressed by the functional expression ΔX =
Instead of f (X), it is possible to store this functional expression in the memory 3 in advance.

Embodiment 2 (corresponding to claim 2). 8 is a block diagram showing a drawing display device as Embodiment 2 of the present invention, and FIG. 9 is a CRT screen 4-1 (same as screen a in FIG. 2 for determining the scroll speed at the time of scrolling in Embodiment 2). )
A graph for calculating a movement distance ΔX for moving the drawing drawing data 3-3 (the same as the drawing drawing data Da in FIG. 2) in each drawing cycle from the distance X between the position of the specific point P and the cursor 9 above. FIG. 10 is a flowchart of the second embodiment.

In FIG. 8, a memory 3, a display device 4, and an input device 5 are connected to a CPU 1 of a computer constituting the drawing display device by a bus 2. The memory 3 has a program 3-1 as a system base and drawing data 3
-2 (the same as the drawing data D in FIG. 2) and scroll speed function data 3-4 (a function having a distance as a parameter) are stored in advance, and the drawing drawing is generated in accordance with the progress of the drawing process. Data 3-3 is stored each time it is generated. The input device 5 includes a mouse 5-1, a keyboard 5-2, and an input interface circuit 5-3. The mouse 5-1 includes an enter button 5-11, a cancel button 5-12, a scroll start / stop button 5-13. It has three buttons.

The CPU 1 comprises the detecting means E, the determining means F, the calculating means H and the moving means I shown in FIG.
The PU 1 selectively cuts out drawing data of a certain area from the drawing data 3-2 stored in the memory 3 according to an instruction of a certain area to be drawn from the mouse 5-1 or the keyboard 5-2, and cuts out this drawing data. The drawing data is stored in the memory 3 as drawing data 3-3 for drawing, and a drawing corresponding to the drawing data 3-3 for drawing is CR of the display device 4.
Draw on the T screen 4-1. Further, the CPU 1 detects an instruction by the operator from the mouse 5-1 or the keyboard 5-2 to start and stop the scroll function, and detects the start of the scroll function to generate drawing drawing data 3-3. The scroll direction and the scroll speed are determined from the relative position between the cursor 9 on the CRT screen 4-1 and the specific point P which is predetermined on the CRT screen 4-1.
This scroll speed is calculated from the graph as shown in FIG. 9, that is, the scroll speed function data 3-4 stored in advance in the memory 3. Then, the CPU 1 sets the scroll speed function data 3- in the determined scroll direction.
The drawing of the CRT screen 4-1 is moved at the scroll speed calculated from 4.

Next, the operation of the drawing display apparatus according to the second embodiment will be described with reference to the flowchart shown in FIG. The computer is started to start drawing display processing, and an event from the input device 4, that is, the mouse 5-1 or the keyboard 5 is started.
-When the input by monitoring the button operation of -2 and the event comes in,
It is checked whether or not the scroll start / stop button 5-13 of the mouse 5-1 is pressed (steps 201, 20).
2). Then, when the scroll start / stop button 5-13 is not pressed, the function button corresponding processing is performed by the button operation of the mouse 5-1 or the keyboard 5-2 as the input type. On the contrary, when the scroll start / stop button 5-13 is pressed, the straight line direction from the specific point P on the CRT screen 4-1 to the position coordinate of the cursor 9, that is, the scroll direction is calculated, and the specific direction is determined. A distance X between the point P and the position coordinate of the cursor 9 is calculated (steps 203 to 20).
5). Based on this distance X, ΔX is obtained from the relational expression ΔX = f (X) in FIG. 9 in order to generate drawing drawing data 3-3 corresponding to the meshes M13 to M13-1 in FIG. . For example, if the distance X is X1, the moving distance of the drawing drawing data 3-3 per unit time is ΔX1 = f.
(X1), and the drawing drawing data 3-3 moved by ΔX1 is cut out from the drawing data 3-2 in FIG. 8 to be generated and drawn on the CRT screen 4-1 (steps 206, 2).
07). That is, the moving distance ΔX is the specific point P and the cursor 9
It is a variable scrolling speed based on the distance X between and. After that, if the scroll start / stop button 5-13 is continuously pressed, the process returns to step 203 to check the scroll direction, generate drawing drawing data 3-3, and check the pressing of the scroll start / stop button 5-13. Repeat the above process to continue scrolling. If the pressing of the scroll start / stop button 5-13 is released, the scroll is stopped and the process returns to step 201 to check the presence / absence of an event.

In short, according to the second embodiment, in the state where the drawing of a certain area is drawn on the CRT screen 4-1,
While the scroll start / stop button 5-13 is pressed, the drawing drawn on the CRT screen 4-1 is moved from the specific point P to the position of the cursor 9 at the distance X between the position of the cursor 9 and the specific point P. The drawing continues to move at a variable scroll speed which changes accordingly, and the drawing scroll is stopped by releasing the depression of the scroll start / stop button 5-13, and the stopped drawing is drawn on the CRT screen 4-1. The operator can change the scroll direction and the scroll speed only by moving the position of the cursor 9 without clicking the cursor 9. That is, by moving the cursor 9 on the CRT screen 4-1 while scrolling the drawing and changing the distance X between the position of the cursor 9 and the specific point P, the scroll speed is made variable and the CRT screen 4- is displayed.
While watching 1, you can get the desired scroll speed.

Embodiment 3 (corresponding to claim 3). 11 is a block diagram showing a drawing display device as a third embodiment of the present invention,
FIG. 12 is a diagram for explaining the target object search process of the third embodiment,
FIG. 13 is a CR of the target data processing for retrieval of the third embodiment.
FIG. 14 is a screen view showing a T screen 4-1 (the same as screen a in FIG. 3), FIG. 14 is a screen view showing a CRT screen 4-1 of the search target object color-specific processing of the third embodiment, and FIG. 15 is this embodiment. It is a flowchart of 3.

In FIG. 11, a memory 3, a display device 4 and an input device 5 are connected to a CPU 1 of a computer constituting the drawing display device by a bus 2. A program 3-1 as a system base, drawing data 3-2 (the same as the drawing data D in FIG. 3), and search target object data 3-5 are stored in the memory 3 in advance, and the drawing process progresses. Drawing data for drawing 3 generated according to
3 is stored each time it is generated. Search target data 3
-5 is input as data representing a target object to be searched in advance from the input device 5 before starting scrolling. The input device 5 includes a mouse 5-1, a keyboard 5-2, and an input interface circuit 5-3. The mouse 5-1 includes an enter button 5-11, a cancel button 5-12, a scroll start / stop button 5-13. It has three buttons.

The CPU 1 comprises the detecting means E, the deciding means F, the moving means G, the setting means K, the judging means L and the color separating means M shown in FIG. 3, and the CPU 1 has a mouse 5-1 and a keyboard 5-. 2, the drawing data of a certain area is selectively cut out from the drawing data 3-2 stored in the memory 3 according to an instruction of a certain area to be drawn, and the cut-out drawing data 3- Memory 3 as 3
And a drawing corresponding to the drawing drawing data 3-3 is drawn on the CRT screen 4-1 of the display device 4. The CPU 1 is a mouse 5-1 or a keyboard 5 operated by the operator.
-2 to detect the start and stop of the scroll function, and by detecting the start of the scroll function, the cursor 9 and the same CRT on the CRT screen 4-1 when the drawing drawing data 3-3 is generated. The scroll direction is determined from the relative position on the screen 4-1 with a predetermined specific point P, and CR is performed in this scroll direction at a constant scroll speed.
While moving the drawing of the T screen 4-1, the search target object data 3 input as data representing the target object to be searched in advance from the input device 5 before the scroll is started.
If -5 is searched and a target object exists in the drawing being scrolled, the drawing color of the target object is switched to a color different from the drawing color of the drawing drawn on the CRT screen 4-1.

In FIG. 12, search target data 3-
Reference numeral 5 contains a target (equipment) name, search conditions, and XY coordinate data. The target name and search conditions are displayed on the CRT screen 4
-1 is input by operating the mouse 5-1 or the keyboard 5-2 while the operator interacts with -1. When the target name and the search condition are input, the equipment matching the input target name and the input search condition is extracted from the equipment diagram data 3-21 stored in the memory 3 in advance, and The XY coordinate data of the equipment is obtained and stored in the search target object data 3-5.

In FIG. 13, the origin of the XY coordinate data is the reference point of the stored whole area data. On the other hand, the XY coordinates of the equipment on the CRT screen 4-1 always stores where the origin of the CRT screen 4-1 is in the entire area data, and the coordinates of the origin of the CRT screen 4-1 are stored. The coordinates on the CRT screen 4-1 are calculated from the relative position to the coordinates of the equipment, and the equipment is displayed.

Next, the operation of the drawing display apparatus according to the third embodiment will be described with reference to the flowchart shown in FIG. The computer is started to start drawing display processing, and an event from the input device 4, that is, the mouse 5-1 or the keyboard 5 is started.
-When the input by monitoring the button operation of -2 and the event comes in,
It is checked whether or not the scroll start / stop button 5-13 of the mouse 5-1 is pressed (steps 301 and 30).
2). If the scroll start / stop button 5-13 is not pressed, the function button corresponding processing is performed by operating the mouse 5-1 or the keyboard 5-2 as the input type. On the contrary, when the scroll start / stop button 5-13 is pressed, the position of the cursor 9 on the CRT screen 4-1 is detected, and the cursor 9 is moved from the specific point P which is the center point of the CRT screen 4-1. Draw the drawing on the CRT screen 4-1 in the direction of
The drawing drawing data 3-3 moved by X is cut out from the drawing data 3-2 shown in FIG. 11 to be generated (steps 303 to 305). Then, as shown in FIG. 14, the search target object data 3 set in advance before scrolling 3
It is determined whether or not the search target 10 according to No. 5 exists in the drawing drawing data 3-2 generated above, and when the search target 10 exists, the search target 10 is CR.
A color change setting for changing to a color different from the drawing color of the drawing drawn on the T screen 4-1 is performed, and the drawing drawing data 3-2 generated above together with the color-changed search target 10 are set. Draw on the CRT screen 4-1 (step 30)
6-308). Subsequently, it is checked whether or not the search target 10 exists in the search area 11 on the CRT screen 4-1 shown in FIG. 14, and if it exists, the search target 10
Is displayed on the CRT screen 4-1 in different colors, which means that the operator can visually recognize the search target object 10.
Therefore, while the scroll start / stop button 5-13 is being pushed down, that is, while the scroll is continuing, the search for the search target object 10 is completed and the scroll is stopped or decelerated. afterwards,
Waiting for the release of the scroll start / stop button 5-13 to be released, and the retrieval target data stored in the memory 3 upon release 3-
The target object name data and the attribute data as the data for retrieval are cleared from 5 and the process returns to step 301 (steps 309 to 312). When the search target 10 is outside the search area 11 on the CRT screen 4-1, the search target 1 is displayed.
0 is not displayed by color on the CRT screen 4-1 and the operator cannot visually recognize the search target object 10. Therefore, it is determined whether or not the scroll start / stop button 5-13 is being pressed. , While the scroll start / stop button 5-13 is being pressed, the process returns to step 303, and when the scroll start / stop button 5-13 is not pressed, the process returns to step 301 to generate the next drawing drawing data 3-3. . In this third embodiment, the scrolling speed can be made variable by replacing the moving means G of the CPU 1 with the moving means I shown in the second embodiment.

In short, according to the third embodiment, when a drawing of a certain area is drawn on the CRT screen 4-1,
While inputting the search target data 3-5 in advance, while the scroll start / stop button 5-13 is being pressed,
The drawing drawn on the CRT screen 4-1 continues to move in the direction of the position of the cursor 9 from the specific point P, and the scrolling of the drawing is stopped by the release of the pressing of the scroll start / stop button 5-13. Drawing is CRT screen 4-1
Since the operator can change the scroll direction by simply moving the position of the cursor 9 without clicking the cursor 9, when the search target 10 appears in the drawing being scrolled, The scrolling speed is stopped or slowed down, and the target object 10 for search is displayed in a color different from that of the drawing, so that the drawing is scrolled CR
The desired target object 10 for search can be easily visually recognized while looking at the T screen 4-1.

Embodiment 4 (corresponding to claim 4). 16 is a block diagram showing a drawing display device as Embodiment 4 of the present invention, and FIG. 17 is a CRT screen 4-showing an edge detection area 4-11 of Embodiment 4 (the same as the edge detection area S of FIG. 4). 1
Screen diagram (same as screen a in FIG. 4), FIG.
It is a flowchart of.

In FIG. 16, a memory 3, a display device 4, and an input device 5 are connected to a CPU 1 of a computer constituting the drawing display device by a bus 2. In the memory 3, a program 3-1 as a system base, drawing data 3-2 (the same as the drawing data D in FIG. 4), a timer 3-6, and edge detection area data 3-7 are stored in advance. Drawing data 3-3 for drawing, which is generated according to the progress of the drawing process, is stored each time it is generated. The edge detection area data 3-7 is data for detecting that the cursor 9 is present in the edge detection area 4-11 forming the peripheral edge of the CRT screen 4-1 as shown in FIG. The input device 5 includes a mouse 5-1, a keyboard 5-2, and an input interface circuit 5-3.
Has three buttons, a confirm button 5-11, a cancel button 5-12, and a scroll start / stop button 5-13.

The CPU 1 includes the detecting means E, the determining means F, the moving means G, the detecting means Q and the switching means R shown in FIG.
The CPU 1 includes a mouse 5-1 and a keyboard 5
-2, the drawing data of a certain area is selectively cut out from the drawing data 3-2 stored in the memory 3 according to an instruction of a certain area to be drawn, and the cut-out drawing data is drawn drawing data 3 -3 is stored in the memory 3 and the drawing corresponding to the drawing drawing data 3-3 is drawn on the CRT screen 4-1 of the display device 4. Also CPU
Reference numeral 1 denotes a CRT when detecting an instruction to start and stop a scroll function from the mouse 5-1 or keyboard 5-2 by the operator, and detecting the start of the scroll function to generate drawing drawing data 3-3. The scroll direction is determined from the relative position between the cursor 9 on the screen 4-1 and a specific point P previously determined on the CRT screen 4-1, and the scroll direction is moved at a constant scroll speed, and the memory is also stored. Edge detection area data stored in 3
When the cursor 9 is searched by 7 for a certain time or more set in the edge detection area 4-11 of the CRT screen 4-1 as shown in FIG. 17, the scroll speed of the drawing being scrolled is searched. The page feed speed for each screen stored in the memory 3 of the drawing data 3-2 is switched.

Next, the operation of the drawing display apparatus according to the fourth embodiment will be described with reference to the flowchart shown in FIG. The computer is started to start drawing display processing, and an event from the input device 4, that is, a mouse 5-1 keyboard 5-
Input by button operation 2 is monitored, and when an event is entered, it is checked whether or not the scroll start / stop button 5-13 of the mouse 5-1 has been pressed (steps 401 and 402).
Then, when the scroll start / stop button 5-13 is not pressed, the function button corresponding processing is performed by the button operation of the mouse 5-1 or the keyboard 5-2 as the input type. On the contrary, when the scroll start / stop button 5-13 is pressed, the position of the cursor 9 on the CRT screen 4-1 is detected, and the cursor 9 is moved from the specific point P which is the center point of the CRT screen 4-1. The direction of the position, that is, the scroll direction is calculated, and it is detected by the timer 3-6 whether the cursor 9 is stopped in the edge detection area 4-11 of the CRT screen 4-1 for a certain period of time. That is, the cursor 9 moves to the edge detection area 4-of the CRT screen 4-1.
The elapsed time located at 11 is counted and this timer 3-6
It is checked whether or not the time is up (steps 403-405). If the time is not up, the cursor 9 moves to the edge detection area 4-11 on the CRT screen 4-1.
16 means that the drawing on the CRT screen 4-1 is moved by ΔX, which means that the drawing data 3-3 shown in FIG.
Generated by drawing from this drawing data 3
-3 is stored in the memory 3 and is drawn on the CRT screen 4-1 (steps 406 and 407). After that, it is checked whether or not the scroll start / stop button 5-13 is pressed, and if the scroll start / stop button 5-13 is pressed, it means that the scroll continuation request is being made.
Check the position of the cursor 9 on the T screen 4-1. If the cursor 9 is outside the edge detection area 4-11, the timer 3-6
When the cursor 9 is within the edge detection area 4-11, the timer 3-6 is started, and then the process returns to step 403 and the position detection of the cursor 9 on the CRT screen 4-1 is started again and The process is repeated (steps 408 to 41).
1). During the repeated operation of this process, the timer 3-
When 6 is timed out, the cursor 9 moves to the CRT screen 4
-1 means that the edge detection area 4-11 of -1 continues to be stopped for a certain period of time, and therefore the drawing drawing is moved by one screen in the scroll direction determined by the relative position of the specific point P and the cursor 9. The data 3-3 is cut out from the drawing data 3-2 and generated (step 412), and the CRT screen 4-
Draw to 1. The above operation is the scroll start / stop button 5.
It is repeated until the depression of -13 is released, but when the depression of the scroll start / stop button 5-13 is released, the timer 3-6 is reset (step 41
3), returning to step 401, the next drawing drawing data 3
The following event is detected in preparation for the generation of -3. The scroll speed can be varied by replacing the moving means G of the CPU 1 with the moving means I shown in the second embodiment in the fourth embodiment.

In short, according to the fourth embodiment, when a drawing of a certain area is drawn on the CRT screen 4-1,
The CRT screen 4 is displayed while the scroll start / stop button 5-13 is being depressed by previously inputting the time for the timer 3-6 to time up and the edge detection area data 3-7.
The drawing drawn in -1 continues to move in the direction of the position of the cursor 9 from the specific point P, and the scroll start / stop button 5-
When the pressing of 13 is released, the scrolling of the drawing is stopped, and the stopped drawing is drawn on the CRT screen 4-1. Therefore, the operator does not click the cursor 9 and only moves the position of the cursor 9 to scroll the direction. On the other hand, when the cursor 9 is stopped in the edge detection area 4-11 of the CRT screen 4-1 for a certain time during scrolling of the drawing, the drawing of the CRT screen 4-1 shows the specific point P and the cursor 9. Since one screen is swapped in the scrolling direction determined by the relative position of the
A desired target can be searched at high speed while looking at the screen 4-1.

In each of the above-described embodiments, the data size relationship between the drawing data 3-2 and the drawing drawing data 3-3 is 1 mesh = 1 screen data, but the invention is not limited to this relationship. The present invention can be applied. The scroll start / stop is assigned to the scroll start / stop button 5-13 of the mouse 5-1. However, in the present invention, the button assignment of the mouse may be changed or an input device other than the mouse may be used as the input device 4 for the CPU 1. Good. Although the center point on the CRT screen 4-1 is used as the specific point P, the present invention can be applied to any other point. Further, the example in which the CRT screen 4-1 is applied as the display device 4 is shown, but the present invention can be applied to a case where a display device having a screen other than the CRT screen is used.

[0042]

As described above, according to the first aspect of the present invention, the scroll start / stop and the cursor are operated by the button operation of the mouse during the business operation while interacting with the display device without operating the scroll button on the screen. Since the scroll direction can be changed at any time by changing the position of, the drawing or the facility to be searched can be searched quickly with good operability.

According to the second aspect, the scroll speed can be made variable by changing the positional relationship between the specific point and the cursor while scrolling. Therefore, for drawings that require a detailed search, it is possible to place the cursor near a specific point to slow the scrolling speed, and for drawings outside the search, place the cursor away from the specific point to increase the scrolling speed. There is an effect that facility search can be performed easily, quickly and accurately.

According to the third invention, when a target object is searched for while scrolling, when the target object appears on the screen, the target object is displayed in different colors and the scroll speed is reduced or reduced. Since it is stopped, there is an effect that the target object can be surely and easily recognized without leaking on the screen.

According to the fourth invention, since the cursor is stopped at the edge detection area on the screen for a certain period of time, the scroll speed is switched to the page feed speed in screen units, so that the target to be searched can be searched at higher speed. There is an effect that can be.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first invention.

FIG. 2 is a configuration diagram showing a second invention.

FIG. 3 is a configuration diagram showing a third invention.

FIG. 4 is a configuration diagram showing a fourth invention.

FIG. 5 is a configuration diagram showing a drawing display device as a first embodiment.

FIG. 6 is a screen view showing a CRT screen 4-1 in which a scroll direction in the drawing process of the first embodiment is determined.

FIG. 7 is a flowchart of the first embodiment.

FIG. 8 is a configuration diagram showing a drawing display device as a second embodiment.

FIG. 9 is a graph for calculating a moving distance for moving drawing drawing data for each drawing cycle from a distance between positions of a specific point P and a cursor 9 in the second embodiment.

FIG. 10 is a flowchart of a second embodiment.

FIG. 11 is a configuration diagram showing a drawing display device as a third embodiment.

FIG. 12 is a diagram illustrating a target object search process according to the third embodiment.

FIG. 13 is a CRT for processing target object data for retrieval according to the third embodiment.
It is a screen figure which shows the screen 4-1.

FIG. 14 is a screen diagram showing a CRT screen 4-1 of the search target object color-based processing of the third embodiment.

FIG. 15 is a flowchart of Example 3.

FIG. 16 is a configuration diagram showing a drawing display device as a fourth embodiment.

FIG. 17 is a CRT screen 4 showing the edge detection area of the fourth embodiment.
It is a screen figure of -1.

FIG. 18 is a flowchart of Example 4.

FIG. 19 is a block diagram showing a conventional drawing display device.

FIG. 20 is a diagram showing conventional drawing data.

FIG. 21 is a diagram showing conventional drawing data for drawing.

FIG. 22 is an explanatory diagram of conventional drawing drawing data generation corresponding to the scroll direction.

FIG. 23 is a screen view showing a conventional CRT screen.

FIG. 24 is a conventional flowchart.

[Explanation of symbols]

 1 CPU 3, C Memory 3-1 Program 3-2, D Drawing Data 3-3, Da Drawing Data 3-4 Scroll Speed Function Data 3-5 Search Target Data 3-6 Timer 3-7 Edge Detection Area data 4, A display device 4-1 CRT screen 4-11, S edge detection area 5 Input device 5-1 Mouse 5-2 Keyboard 5-11 Confirm button 5-12 Cancel button 5-13 Scroll start / stop button 9 , B cursor a screen E detection means F determination means G, I movement means H calculation means K setting means L determination means M color-based means P specific point Q detection means R switching means

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] May 26, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Patent application title: Drawing display device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for drawing on a cathode ray tube (hereinafter referred to as CRT) screen of a display device using computer graphics, and particularly, for drawing on a CRT screen while reading drawing data from a memory. The present invention relates to a drawing display device that scrolls (moves).

[0002]

2. Description of the Related Art FIG. 11 is a block diagram showing a conventional drawing display device. In FIG. 11, reference numeral 1 is a central processing unit (hereinafter referred to as CPU) of a computer, 2 is a bus, and 3 is a memory. In the memory 3, a program 3-1 as a system and drawing data 3-2 are stored in advance, and drawing drawing data 3-3 are stored as necessary. 4 is a display device, which is a CRT screen 4-1.
Have. 5 is an input device, which is a mouse 5-1
And keyboard 5-2 and input interface circuit 5-3
Composed of and. The mouse 5-1 has an enter button 5-11 and a cancel button 5-12, and has the input interface circuit 5
-3 performs electrical level adjustment for exchanging data between the CPU 5-1 and the mouse 5-1 or keyboard 5-2.

FIG. 12 is a diagram showing an example of the drawing data 3-2. In FIG. 12, the drawing data 3-2 is one unit (1
Mesh), and is composed of a plurality of meshes with reference numerals M1 to M25. The drawing data for one mesh corresponds to the drawing data for one screen of the CRT screen 4-1, that is, the drawing data 3-3 for drawing.

FIG. 13 shows a mesh M shown by hatching in FIG.
13 is a diagram showing an example of drawing data 3-3 for drawing corresponding to FIG. In FIG. 13, drawing drawing data 3-3
Has topographic map data M13-1 representing a topographic map of roads, houses and fields, and equipment map data M13-2 representing facilities such as electric poles and electric wires on the topographic map.

FIG. 14 shows drawing drawing data 3 for moving or scrolling the drawing on the CRT screen 4-1.
It is a figure which shows the production | generation process of -3. In FIG. 14,
Symbols M13 and M13 are used as drawing drawing data 3-3 when the drawing data 3-2 is moved in the drawing moving direction on the CRT screen 4-1 in the drawing moving direction, that is, the scroll direction by a distance ΔX at a certain time interval, that is, at each drawing cycle. -1, M13-
2, ..., M13-n generate drawing drawing data and draw drawing data M13, M13-
1, M13-2, ..., M13-n are displayed on the CRT screen 4-1.
The drawing is sequentially performed, and the drawing is moved, that is, scrolled.
The moving speed of the drawing on the CRT screen 4-1 or the scrolling speed is determined by the moving distance ΔX for each drawing cycle of the drawing.

FIG. 15 is a view showing a CRT screen 4-1 for performing the scroll operation. In FIG. 15, 6 is a function button for selecting functions such as attribute inquiry 6-1 and drawing search 6-2 and drawing correction 6-3, and 7 is a scroll start / direction for determining scroll start and scroll direction. A button, 8 is a scroll stop button for instructing to stop scrolling, and 9 is a cursor.

Next, the operation of this conventional drawing display device will be described with reference to FIG.
This will be described using the flowchart of No. 6. The computer is started to start the drawing display process, and the operator tries to draw a drawing of a certain area on the CRT screen 4-1 with the mouse 5-.
1 or the keyboard 5-2 to move the cursor 9 to the drawing search button 6 among the function buttons 6 displayed on the CRT screen 4-1.
-2 and click on the operation (press down) of the certain button 5-11, the CPU 1 cuts out drawing data of a certain area corresponding to the job from the drawing data 3-2 stored in advance in the memory 3. The cut drawing data is stored in the memory 3 as drawing drawing data 3-3, and the drawing drawing data 3-3 is drawn on the CRT screen 4-1 of the display device 4. In this state, the operator needs a search targeting equipment or equipment connection or terrain in the drawing drawn on the CRT screen 4-1 and the non-drawing drawing not drawn on the CRT screen 4-1. Then, the drawing drawn on the CRT screen 4-1 is scrolled to search for the target object. This scroll operation is performed by moving the cursor 9 to the scroll start / direction button 7 displayed on the CRT screen 4-1 and clicking the enter button 5-11 to turn it on, and the drawing on the CRT screen 4-1 is selected. The scroll is started at a predetermined scroll speed in the arrow direction (scroll direction).
To end this scrolling, move the cursor 9 to the scroll stop button 8 displayed on the CRT screen 4-1 and press the confirm button 5-
It is performed by clicking on the on operation of 11.

[0008]

Since the conventional drawing display device is configured as described above, the CRT screen 4-
1 When scrolling the drawing on the above, the scroll start / direction selection button 7 and the scroll stop button 8 must be clicked with the mouse 5-1, so that the operability is poor and the responsiveness of business execution is deteriorated. . Also, the scroll direction cannot be changed in any desired direction at any time, and the scroll speed is fixed, so you can move the drawings on the screen at a variable scroll speed that matches the purpose of scrolling, such as searching for a target object. There was a problem that it could not be done.

The present invention has been made to solve the above problems. A first object of the present invention is to display a target on a screen of a display device in a color different from that of the drawing on the screen. A second object is to obtain a drawing display device capable of quick, accurate and easy object search, and the second purpose is to switch the scroll speed to the page feed speed and search the target object by the presence of the cursor in the edge detection area of the screen. It is to obtain a drawing display device capable of speeding up.

[0010]

As shown in FIG. 1, a drawing display device according to the first invention described in claim 1 is as follows.
By operating the position of the cursor B displayed on the screen a of the display device A for drawing the drawing, the drawing drawing data Da obtained by cutting out a part of the drawing data D previously stored in the memory C is stored in the memory C. Drawing data D
Drawing data Da for drawing while moving the cutting position of
And a drawing display having a scroll function for moving the drawings on the screen a of the display device A by sequentially drawing the drawings corresponding to the drawing drawing data Da on the screen a of the display device A. The apparatus includes a detection unit E, a determination unit F, a moving unit G, a setting unit K, a determination unit L, and a color classification unit M, and the detection unit E detects an instruction from the operator to start and stop the scroll function. Then, the determination means F detects the activation of the scroll function from the detection means E, and the cursor B on the screen a of the display device A at the time of generation of the drawing drawing data Da and the specific point P predetermined on the screen a. The scroll direction is determined from the position, and the moving means G changes the scroll direction from the determining means F to the screen a of the display device A.
While the above drawing is moved, when the setting means K indicates the target object to be searched in the drawing moved by the moving means G by the operation of the operator, the determination means L determines that the target object from the setting means K is The moving means G determines whether or not the drawing is moved in the drawing, and the color-coding means M scrolls the drawing moved by the moving means G according to the judgment result from the judging means L that the target exists in the drawing. The target is color-coded in a color different from the drawing on the screen a while stopping or decelerating the speed.

As shown in FIG. 2, the drawing display device according to the second aspect of the present invention operates the position of the cursor B displayed on the screen a of the display device A for drawing a drawing. And the drawing data D previously stored in the memory C
The drawing drawing data Da obtained by cutting out a part of the drawing data is stored in the memory C, the drawing drawing data Da is sequentially generated while moving the cutting position of the drawing data D, and the drawing corresponding to the drawing drawing data Da is drawn. The display device A
In the drawing display device having a scroll function of moving the drawing on the screen a of the display device by sequentially drawing on the screen a, the detecting unit E, the determining unit F, the moving unit G, the detecting unit Q, and the switching unit. R and a detection means E
When the operator detects an instruction to start and stop the scroll function from the operator, the determination means F detects the start of the scroll function from the detection means E, and the cursor is displayed on the screen a of the display device A when the drawing drawing data Da is generated. While the scrolling direction is determined from the relative position between B and the predetermined point P on the screen a, and the moving means G moves the drawing on the screen a of the display device A in the scrolling direction from the determining means F,
When the detection means Q detects that the scrolling function is activated by the detection means E and detects that the cursor B is stopped in the edge detection area S of the screen a of the display device A at the time of generation of the drawing drawing data Da for a predetermined time or longer, The scroll speed of the drawing moved by the moving means G when the switching means R detects from the detection means Q to the edge detection area S of the cursor B for a certain period of time or more, the scroll speed of the drawing is stored in the memory C of the drawing data D for each page. It is configured to switch to the feed rate.

[0012]

In the drawing display device of the first invention, when scrolling the drawing drawn on the screen a, a target object for search is set and the screen is displayed with respect to a specific point P such as the center of the screen a. Move cursor B on a to stop,
When the scroll operation is performed, the scroll direction is automatically set from the relative position between the cursor B and the specific point P, and the drawing on the screen a moves in the scroll direction automatically set, while the target object is displayed on the screen after the scroll. When it appears on a, the scroll speed is stopped or slowed down,
The target object is displayed in a different color from the drawing on the screen a.

When scrolling the drawing drawn on the screen a, the drawing display device of the second invention moves the cursor B on the screen a to a specific point P such as the center of the screen a and stops it. , When the scroll operation is performed, the cursor B
The scroll direction is automatically set based on the relative position between the specified point P and the specific point P, and the drawing on the screen a moves in the scroll direction automatically set. If it exists for a certain period of time,
The scroll speed is changed to the page feed speed to fast forward the screen a.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, each embodiment of the present invention will be described with reference to FIGS.
The same parts as those of the above-mentioned conventional example are designated by the same reference numerals and will be described.

Embodiment 1 (corresponding to claim 1). FIG. 3 is a configuration diagram showing a drawing display device as a first embodiment of the present invention, FIG. 4 is a diagram illustrating a target object search process of the first embodiment, and FIG.
Is a screen diagram showing a CRT screen 4-1 (the same as the screen a in FIG. 3) of the search target data processing of the first embodiment, and FIG. 6 is a CRT screen 4 of the search target color-specific processing of the first embodiment. -1
7 is a flow chart of the first embodiment.

In FIG. 3, a memory 3, a display device 4, and an input device 5 are connected to a CPU 1 of a computer constituting the drawing display device by a bus 2. The memory 3 has a program 3-1 as a system base and drawing data 3
-2 (the same as the drawing data D in FIG. 1) and the target object data 3-5 for retrieval are stored in advance, and the drawing drawing data 3-3 generated in accordance with the progress of the drawing process.
Is stored each time it is generated. Search target data 3-
5 is input as data representing a target object to be searched in advance from the input device 5 before the start of scrolling. The input device 5 includes a mouse 5-1, a keyboard 5-2, and an input interface circuit 5-3. The mouse 5-1 includes an enter button 5-11, a cancel button 5-12, a scroll start / stop button 5-13. It has three buttons.

The CPU 1 is provided with the detecting means E, the determining means F, the moving means G, the setting means K, the judging means L and the color separating means M shown in FIG. 1, and the CPU 1 has the mouse 5-1 and the keyboard 5-. 2, drawing data of a certain area is selectively cut out from the drawing data 3-2 stored in the memory 3 according to an instruction of a certain area to be drawn, and the cut drawing data is drawn drawing data 3- Memory 3 as 3
And a drawing corresponding to the drawing drawing data 3-3 is drawn on the CRT screen 4-1 of the display device 4. The CPU 1 is a mouse 5-1 or a keyboard 5 operated by the operator.
-2 to detect the start and stop of the scroll function, and by detecting the start of the scroll function, the cursor 9 and the same CRT on the CRT screen 4-1 when the drawing drawing data 3-3 is generated. The scroll direction is determined from the relative position on the screen 4-1 with a predetermined specific point P, and CR is performed in this scroll direction at a constant scroll speed.
While moving the drawing of the T screen 4-1, the search target object data 3 input as data representing the target object to be searched in advance from the input device 5 before the scroll is started.
If -5 is searched and a target object exists in the drawing being scrolled, the drawing color of the target object is switched to a color different from the drawing color of the drawing drawn on the CRT screen 4-1.

In FIG. 4, target object data for retrieval 3-5
Contains the target (equipment) name, search conditions, and XY coordinate data. The target name and search conditions are displayed on the CRT screen 4-
Mouse 5-1 and keyboard 5 while the operator interacts with 1
It is input by operating -2. When the target name and the search condition are input, the equipment matching the input target name and the input search condition is extracted from the equipment diagram data 3-21 stored in advance in the memory 3,
The XY coordinate data of the equipment is obtained and stored in the search target object data 3-5.

In FIG. 5, the origin of the XY coordinate data is the reference point of all the stored area data. on the other hand,
The XY coordinates of the equipment on the CRT screen 4-1 are CRT screen 4
The position of the origin of -1 in the entire area data is always stored, and the coordinates on the CRT screen 4-1 are calculated from the relative position between the coordinates of the origin of the CRT screen 4-1 and the coordinates of the equipment. , The equipment is displayed.

Next, the operation of the drawing display apparatus according to the first embodiment will be described with reference to the flowchart shown in FIG. The computer is started to start the drawing display process, and the input device 4
Event from mouse, mouse 5-1 or keyboard 5-
The input by operating the button 2 is monitored, and when an event is entered, it is checked whether or not the scroll start / stop button 5-13 of the mouse 5-1 is pressed (steps 301 and 302).
If the scroll start / stop button 5-13 is not pressed, the function button corresponding processing is performed by operating the mouse 5-1 or the keyboard 5-2 as the input type. On the contrary, when the scroll start / stop button 5-13 is pressed, the position of the cursor 9 on the CRT screen 4-1 is detected, and the cursor 9 is moved from the specific point P which is the center point of the CRT screen 4-1. The drawing drawing data 3-3 obtained by moving the drawing on the CRT screen 4-1 by ΔX in the direction of the position is cut out from the drawing data 3-2 shown in FIG. 3 (step 303).
~ 305). Then, as shown in FIG. 6, the drawing target drawing data 3-5 generated by the search target object 10 based on the search target object data 3-5 set in advance before scrolling.
It is determined whether or not the target object for search 10 exists in
When the target exists, the search target 10 is displayed on the CRT screen 4
-1 performs color change setting for changing to a color different from the drawing color of the drawing drawn, and the drawing drawing data 3-2 generated above with the color-changed search target 10
Is drawn on the CRT screen 4-1 (steps 306 to 30).
8). Next, the search target 10 is the CRT shown in FIG.
It is checked whether or not it exists in the search area 11 on the screen 4-1, and if it exists, the search target 10 is displayed in different colors on the CRT screen 4-1 and the operator selects the search target 1.
It means that 0 can be visually recognized. Therefore, while the scroll start / stop button 5-13 is being pushed down, that is, while the scroll is continuing, the search for the search target object 10 is completed and the scroll is stopped or decelerated. After that, the release of the scroll start / stop button 5-13 is waited for, and the target object name data and the attribute data as the search data are cleared from the search target object data 3-5 stored in the memory 3 by the release, Return to step 301 (steps 309 to 31)
2). When the search target 10 is outside the search area 11 on the CRT screen 4-1, the search target 10 is not displayed in different colors on the CRT screen 4-1 and the operator selects the search target. Since 10 is invisible, it is determined whether or not the scroll start / stop button 5-13 is being pressed. If the scroll start / stop button 5-13 is being pressed, the process returns to step 303 to scroll start / stop button 5 In the case of the release of -13, the flow returns to step 301 to return to the generation of the next drawing drawing data 3-3. In the first embodiment, the scroll speed function data having the distance as a parameter is stored in the memory 3 in advance, and the CRT screen 4 at the time of generating the drawing drawing data 3-3 is detected by the detection of the activation of the scroll function from the detecting means E. Same as cursor 9 with -1
The scroll speed is determined by calculating the distance from the predetermined point P on the RT screen 4-1 and determining the scroll speed, which is the moving speed of the drawing, using the result obtained from the scroll speed function data using this distance as a parameter. It is also possible to make variable.

In short, according to the first embodiment, when a drawing of a certain area is drawn on the CRT screen 4-1,
While inputting the search target data 3-5 in advance, while the scroll start / stop button 5-13 is being pressed,
The drawing drawn on the CRT screen 4-1 continues to move in the direction of the position of the cursor 9 from the specific point P, and the scrolling of the drawing is stopped by the release of the pressing of the scroll start / stop button 5-13. Drawing is CRT screen 4-1
Since the operator can change the scroll direction by simply moving the position of the cursor 9 without clicking the cursor 9, when the search target 10 appears in the drawing being scrolled, The scrolling speed is stopped or slowed down, and the target object 10 for search is displayed in a color different from that of the drawing, so that the drawing is scrolled CR
The desired target object 10 for search can be easily visually recognized while looking at the T screen 4-1.

Embodiment 2 (corresponding to claim 2). 8 is a block diagram showing a drawing display device as a fourth embodiment of the present invention,
FIG. 9 is a screen view of a CRT screen 4-1 (same as screen a in FIG. 2) showing an end detection area 4-11 (same as end detection area S in FIG. 2) of the fourth embodiment, and FIG. It is a flowchart of 4.

In FIG. 8, a memory 3, a display device 4, and an input device 5 are connected to a CPU 1 of a computer constituting the drawing display device by a bus 2. The memory 3 has a program 3-1 as a system and drawing data 3-2.
(The same as the drawing data D in FIG. 2), the timer 3-6 and the edge detection area data 3-7 are stored in advance, and the drawing drawing data 3-3 generated according to the progress of the drawing process is It is stored each time it is generated. In this edge detection area data 3-7, the cursor 9 is CR as shown in FIG.
Edge detection area 4-11 forming the peripheral edge of the T screen 4-1
It is the data for detecting the presence in the. The input device 5 includes a mouse 5-1, a keyboard 5-2, and an input interface circuit 5-3, and the mouse 5-1 has an enter button 5
-11, a cancel button 5-12, and a scroll start / stop button 5-13 are provided.

The CPU 1 includes the detecting means E, the determining means F, the moving means G, the detecting means Q and the switching means R shown in FIG.
The CPU 1 includes a mouse 5-1 and a keyboard 5
-2, the drawing data of a certain area is selectively cut out from the drawing data 3-2 stored in the memory 3 according to an instruction of a certain area to be drawn, and the cut-out drawing data is drawn drawing data 3 -3 is stored in the memory 3 and the drawing corresponding to the drawing drawing data 3-3 is drawn on the CRT screen 4-1 of the display device 4. Also CPU
Reference numeral 1 denotes a CRT when detecting an instruction to start and stop a scroll function from the mouse 5-1 or keyboard 5-2 by the operator, and detecting the start of the scroll function to generate drawing drawing data 3-3. The scroll direction is determined from the relative position between the cursor 9 on the screen 4-1 and a specific point P previously determined on the CRT screen 4-1, and the scroll direction is moved at a constant scroll speed, and the memory is also stored. Edge detection area data stored in 3
7, the cursor 9 moves to the CRT screen 4 as shown in FIG.
When it is searched that the edge detection area 4-11 of -1 exists for a certain time or longer set by the timer 3-6, the scroll speed of the drawing being scrolled is displayed on the screen 3 stored in the memory 3 of the drawing data 3-2. Switch to the page feed speed for each.

Next, the operation of the drawing display apparatus according to the second embodiment will be described with reference to the flow chart shown in FIG. The computer is started to start drawing display processing, and an event from the input device 4, that is, a mouse 5-1 keyboard 5-
Input by button operation 2 is monitored, and when an event is entered, it is checked whether or not the scroll start / stop button 5-13 of the mouse 5-1 has been pressed (steps 401 and 402).
Then, when the scroll start / stop button 5-13 is not pressed, the function button corresponding processing is performed by the button operation of the mouse 5-1 or the keyboard 5-2 as the input type. On the contrary, when the scroll start / stop button 5-13 is pressed, the position of the cursor 9 on the CRT screen 4-1 is detected, and the cursor 9 is moved from the specific point P which is the center point of the CRT screen 4-1. The direction of the position, that is, the scroll direction is calculated, and it is detected by the timer 3-6 whether the cursor 9 is stopped in the edge detection area 4-11 of the CRT screen 4-1 for a certain period of time. That is, the cursor 9 moves to the edge detection area 4-of the CRT screen 4-1.
The elapsed time located at 11 is counted and this timer 3-6
It is checked whether or not the time is up (steps 403-405). If the time is not up, the cursor 9 moves to the edge detection area 4-11 on the CRT screen 4-1.
Since it means that the drawing is not stopped for a certain period of time, the drawing drawing data 3-3 in which the drawing on the CRT screen 4-1 is moved by ΔX is cut out from the drawing data 3-2 shown in FIG. 8 and generated. Then, the generated drawing drawing data 3-
3 is stored in the memory 3 and is drawn on the CRT screen 4-1 (steps 406 and 407). After that, it is checked whether or not the scroll start / stop button 5-13 is pressed, and if the scroll start / stop button 5-13 is pressed, it means that the scroll continuation request is being made.
Check the position of the cursor 9 on the T screen 4-1. If the cursor 9 is outside the edge detection area 4-11, the timer 3-6
When the cursor 9 is within the edge detection area 4-11, the timer 3-6 is started, and then the process returns to step 403 and the position detection of the cursor 9 on the CRT screen 4-1 is started again and The process is repeated (steps 408 to 41).
1). During the repeated operation of this process, the timer 3-
When 6 is timed out, the cursor 9 moves to the CRT screen 4
-1 means that the edge detection area 4-11 of -1 continues to be stopped for a certain period of time, and therefore the drawing drawing is moved by one screen in the scroll direction determined by the relative position of the specific point P and the cursor 9. The data 3-3 is cut out from the drawing data 3-2 and generated (step 412), and the CRT screen 4-
Draw to 1. The above operation is the scroll start / stop button 5.
It is repeated until the depression of -13 is released, but when the depression of the scroll start / stop button 5-13 is released, the timer 3-6 is reset (step 41
3), returning to step 401, the next drawing drawing data 3
The following event is detected in preparation for the generation of -3. In the second embodiment, the scroll speed function data having the distance as a parameter is stored in the memory 3 in advance, and the CRT screen 4 at the time of generating the drawing drawing data 3-3 is detected by the detection of the start of the scroll function from the detecting means E. -1
The distance between the cursor 9 and the predetermined specific point P on the CRT screen 4-1 is obtained, and the scroll speed, which is the moving speed of the drawing, is calculated by using the result obtained from the scroll speed function data using this distance as a parameter. It is also possible to change the scroll speed by determining.

In short, according to the second embodiment, in the state where the drawing of a certain area is drawn on the CRT screen 4-1,
The CRT screen 4 is displayed while the scroll start / stop button 5-13 is being depressed by previously inputting the time for the timer 3-6 to time up and the edge detection area data 3-7.
The drawing drawn in -1 continues to move in the direction of the position of the cursor 9 from the specific point P, and the scroll start / stop button 5-
When the pressing of 13 is released, the scrolling of the drawing is stopped, and the stopped drawing is drawn on the CRT screen 4-1. Therefore, the operator does not click the cursor 9 and only moves the position of the cursor 9 to scroll the direction. On the other hand, when the cursor 9 is stopped in the edge detection area 4-11 of the CRT screen 4-1 for a certain time during scrolling of the drawing, the drawing of the CRT screen 4-1 shows the specific point P and the cursor 9. Since one screen is swapped in the scrolling direction determined by the relative position of the
A desired target can be searched at high speed while looking at the screen 4-1.

In each of the above-described embodiments, the data size relationship between the drawing data 3-2 and the drawing drawing data 3-3 is 1 mesh = 1 screen data, but the present invention is not limited to this relationship. The present invention can be applied. The scroll start / stop is assigned to the scroll start / stop button 5-13 of the mouse 5-1. However, in the present invention, the button assignment of the mouse may be changed or an input device other than the mouse may be used as the input device 4 for the CPU 1. Good. Although the center point on the CRT screen 4-1 is used as the specific point P, the present invention can be applied to any other point. Further, the example in which the CRT screen 4-1 is applied as the display device 4 is shown, but the present invention can be applied to a case where a display device having a screen other than the CRT screen is used.

[0028]

As described above, according to the first aspect of the invention, when a target object is searched for while scrolling, when the target object appears on the screen, the target object is displayed in different colors. Since the scroll speed slows down or stops, there is an effect that the target object can be surely and easily recognized without leaking on the screen.

According to the second invention, since the cursor is stopped in the edge detection area on the screen for a certain period of time, the scroll speed is switched to the page feed speed in screen units, so that the target to be searched can be searched faster. There is an effect that can be.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first invention.

FIG. 2 is a configuration diagram showing a second invention.

FIG. 3 is a configuration diagram showing a drawing display device as a first embodiment.

FIG. 4 is a diagram illustrating a target object search process according to the first embodiment.

FIG. 5 is a screen diagram showing a CRT screen 4-1 for processing target data for search according to the first embodiment.

FIG. 6 is a screen view showing a CRT screen 4-1 of the search target object color-based processing of the first embodiment.

FIG. 7 is a flowchart of the first embodiment.

FIG. 8 is a configuration diagram showing a drawing display device as a second embodiment.

FIG. 9 is a CRT screen 4-showing the edge detection area of the second embodiment.
It is a screen figure of 1.

FIG. 10 is a flowchart of a second embodiment.

FIG. 11 is a configuration diagram showing a conventional drawing display device.

FIG. 12 is a diagram showing conventional drawing data.

FIG. 13 is a diagram showing conventional drawing drawing data.

FIG. 14 is an explanatory diagram of conventional drawing data generation for drawing corresponding to a scroll direction.

FIG. 15 is a screen view showing a conventional CRT screen.

FIG. 16 is a conventional flowchart.

[Explanation of Codes] 1 CPU 3, C memory 3-1 Program 3-2, D drawing data 3-3, Da Drawing data 3-4 Scroll speed function data 3-5 Search target data 3-6 Timer 3-7 Edge detection area data 4, A display device 4-1 CRT screen 4-11, S edge detection area 5 Input device 5-1 Mouse 5-2 Keyboard 5-11 Confirm button 5-12 Cancel button 5-13 Scroll Start / Stop button 9, B cursor a screen E detection means F determination means G movement means K setting means L determination means M color classification means P specific point Q detection means R switching means

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 9]

[Figure 7]

[Figure 8]

FIG. 11

[Fig. 12]

[Fig. 13]

FIG. 14

[Figure 10]

FIG. 15

FIG. 16

Claims (4)

[Claims] 1. A drawing drawing data obtained by cutting out a part of drawing data previously stored in a memory is stored in the memory by operating a position of a cursor displayed on a screen of a display device for drawing a drawing. At the same time, the drawing data for drawing is sequentially generated while moving the cut-out position of the drawing data, and the drawings corresponding to the drawing data for drawing are sequentially drawn on the screen of the display device, so that the drawing is displayed on the screen of the display device. In a drawing display device having a scroll function of moving the drawing function, a detection unit that detects an instruction to start and stop the scroll function, and a detection unit that detects the start of the scroll function from the detection unit when the drawing drawing data is generated. Determinant that determines the scroll direction from the relative position between the cursor on the screen of the display device and a specific point that is set in advance on the screen When, drawing display apparatus characterized by comprising a moving means for moving the drawing on the screen of the display device in the scroll direction from the determining means. 2. The drawing drawing data obtained by cutting out a part of the drawing data previously stored in the memory is stored in the memory by operating the position of the cursor displayed on the screen of the display device for drawing the drawing. At the same time, the drawing data for drawing is sequentially generated while moving the cut-out position of the drawing data, and the drawings corresponding to the drawing data for drawing are sequentially drawn on the screen of the display device, so that the drawing is displayed on the screen of the display device. In a drawing display device having a scroll function of moving the drawing function, a detection unit that detects an instruction to start and stop the scroll function, and a detection unit that detects the start of the scroll function from the detection unit when the drawing drawing data is generated. Is the function that finds the distance between the cursor on the screen of the display device and a specific point that is set in advance on the same screen and uses this distance as a parameter? A calculation unit that determines the scroll speed that is the moving speed of the drawing by using the obtained result, and the same screen as the cursor on the screen of the display device when the drawing drawing data is generated by the detection of the start of the scroll function from the detection unit Determining means for determining a scroll direction from a relative position with respect to a predetermined specific point, and moving means for moving the drawing on the screen of the display device in the scroll direction from the determining means at the scroll speed from the calculating means. And a drawing display device comprising: 3. The drawing drawing data obtained by cutting out a part of the drawing data stored in advance in the memory is stored in the memory by operating the position of the cursor displayed on the screen of the display device for drawing the drawing. At the same time, the drawing data for drawing is sequentially generated while moving the cut-out position of the drawing data, and the drawings corresponding to the drawing data for drawing are sequentially drawn on the screen of the display device, so that the drawing is displayed on the screen of the display device. In a drawing display device having a scroll function of moving the drawing function, a detection unit that detects an instruction to start and stop the scroll function, and a detection unit that detects the start of the scroll function from the detection unit when the drawing drawing data is generated. Determinant that determines the scroll direction from the relative position between the cursor on the screen of the display device and a specific point that is set in advance on the screen Moving means for moving the drawing on the screen of the display device in the scroll direction from the determining means, setting means for instructing a target object to be searched in the drawing moved by the moving means, and this setting Determination means for determining whether or not the target object from the means is present in the drawing to be moved by the moving means, and the target object from the determination means is moved by the moving means according to the determination result of being present in the drawing. And a color-coding means for displaying the target object by color while stopping or slowing down the scroll speed of the drawing. 4. The drawing drawing data obtained by cutting out a part of the drawing data previously stored in the memory is stored in the memory by operating the position of the cursor displayed on the screen of the display device for drawing the drawing. At the same time, drawing data for drawing is sequentially generated while moving the cutting position of the drawing data, and drawings corresponding to the drawing data for drawing are sequentially drawn on the screen of the display device, thereby drawing the drawing on the screen of the display device. In a drawing display device having a scroll function of moving by, detection means for detecting an instruction to start and stop the scroll function, and detection of the start of the scroll function from the detection means, at the time of generating the drawing drawing data Determinant that determines the scroll direction from the relative position between the cursor on the screen of the display device and a specific point that is set in advance on the screen A moving means for moving the drawing on the screen of the display device in the scroll direction from the determining means, and a screen of the display device at the time of generating the drawing drawing data by detection of the scroll function start-up by the detecting means. Detecting means for detecting that the cursor is stopped in the edge detection area for a certain time or more, and scroll speed of the drawing moved by the moving means by the detection of the stop of the cursor to the edge detection area for a certain time or more And a switching means for switching the page feed speed for each unit stored in the memory of the drawing data, the drawing display device.