JPH065497B2 - Method and apparatus for inputting drawings to computer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a method and apparatus for inputting a figure to a computer which connects point coordinates input to a CPU by an input device digitizer and displays a figure on a CRT screen. .

<Prior art> For example, in a method and apparatus for inputting figures to a computer used for estimating roofing materials and wall materials for buildings and calculating work, the coordinates of each point input to the CPU by a digitizer are connected and a drawing is displayed on the CRT screen. There is a system in which the roof material and the wall material are displayed and the areas of the roof and the wall shown in the displayed figures are calculated to estimate or integrate the roof material and the wall material. However, in the conventional figure input to this kind of computer, the point coordinates input by the digitizer are displayed on the CRT screen as they are, and the scale is input for each drawing, or the drawing is rewritten so that it is in the scale. Was.

<Problems to be Solved by the Invention> Therefore, in the conventional case, reduction, enlargement of a drawing, FAX, etc.
If the actual scale is different from what is displayed in the drawing, it is very troublesome to calculate and enter the scale for each drawing, and it is also very difficult to rewrite the drawing to match the scale. It was troublesome. Moreover, since the scale is different from the actual scale, there is a problem in that accurate input cannot be performed using the drawing. Also, if the drawing is placed on the digitizer body in a tilted state, the figure in the tilted state appears on the CRT screen, so it is necessary to place the drawing on the digitizer body accurately so that the drawing does not tilt. There was a problem that it took a lot of time to attach it.

In view of the above problems, the present invention eliminates the trouble of accurately pasting a drawing on the digitizer main body and enables the scale of the drawing to be accurately input by a simple operation.

<Means for Solving the Problem> The first technical means of the present invention for solving this technical problem is to connect the point coordinates input to the CPU 2 by the digitizer 1 to display a diagram on the CRT screen 21. In this case, the inclination of the drawing 22 with respect to the digitizer main body 4 is calculated from the two-point coordinates input by the digitizer 1 using the line as the reference line on the drawing 22 placed on the digitizer main body 4, and the input reference line is actually calculated. The scale of the drawing 22 is calculated from the size of the figure, and the point coordinates input by the digitizer 1 are corrected by the calculated tilt so that the tilt between the digitizer body 4 and the drawing 22 does not appear on the CRT screen 21. In point.

The second technical means is to connect the point coordinates input to the CPU 2 by the digitizer 1 and display the figure on the CRT screen 21, using the line on the drawing 22 placed on the digitizer main body 4 as the reference line. Inclination determination means 12 for calculating the inclination of the drawing 22 with respect to the digitizer body 4 from the two-point coordinates input by the digitizer 1.
And a scale discriminating means 13 for calculating the scale of the drawing from the input actual dimensions of the reference line, the digitizer main body 4, and the drawing.
In order to prevent the inclination with respect to 22 from appearing on the CRT screen 21, there is provided a coordinate angle correction means 14 for correcting the point coordinates input by the digitizer 1 with the inclination calculated by the inclination determination means 12.

<Example> Hereinafter, the present invention will be described in accordance with an example of the drawings.
In the figure, 1 is a digitizer, 2 is a CPU, and 3 is a CRT display device.

The digitizer 1 has a digitizer body 4 as shown in FIG.
And a button cursor 5, and by moving the button cursor 5 on the digitizer main body 4, the digitizer main body 4
The coordinate signal S indicating the position of the cursor 5 with respect to the CPU 2
It is designed to output to. Button cursor 5 is first
Button 6, 2nd button 7, 3rd button 8 and 4th button 9
Have and.

The CPU 2 includes a coordinate point reading / converting unit 11, an inclination determining unit 12, a scale determining unit 13, a coordinate angle correcting unit 14, a converted coordinate storing unit 15, and a screen display control unit 16.

Coordinate reading point conversion means 11 receives the coordinate signals S ₁ inputted from the digitizer 1, reads the coordinate signals S _1, CRT display device 3 illustrated in effective area and the fourth diagram of the digitizer body 4
The coordinate signal S ₁ is converted into the coordinates of the CRT screen 21 by the ratio (including the case of 1: 1) with the CRT screen 21 and is stored.

When the tilt discriminating means 12 inputs the digitizer 1 using the line on the drawing placed on the digitizer main body 4 as a reference line, the coordinate signal S indicating the two-point coordinates converted from the coordinate point reading conversion means 11 into the coordinates on the CRT screen 21. Enter ₂ and digitizer body 4
Is calculated, that is, the inclination of the drawing placed on the digitizer body 4 is calculated.

When the actual size of the reference line is input to the CPU 2, the scale determining means 13 calculates the scale of the drawing from the actual size,
Remember this.

When the point coordinates are input from the digitizer 1 to the CPU 2, the coordinate angle correction means 14 inputs signals from the coordinate point reading conversion means 11 and the tilt determination means 12, and the digitizer main body 4 and the drawing placed on the main body 4 are shown. The point coordinates input from the digitizer 1 via the coordinate point reading / converting means 11 are corrected by the inclination calculated by the inclination determining means 12 so that the inclinations of and are not displayed on the CRT screen 21. That is, from the coordinates input from the digitizer 1 and converted to the CRT screen 21 by the coordinate point reading conversion means 11, the drawing is not tilted on the digitizer main body 4 with one point such as the lower left of the CRT screen 21 as a reference point. The coordinate position when it is correctly set is calculated.

The converted coordinate storage means 15 sequentially stores the coordinates corrected by the coordinate angle correction means 14.

The screen display control means 16 displays the point coordinates, which are converted by the coordinate point reading conversion means 11 or corrected by the coordinate angle correction means 14, or the line connecting the point coordinates, on the CRT of the CRT display device 3.
The CRT display device 3 is controlled to display a cursor or a line on the screen 21.

Next, the operation will be described with reference to the flowchart shown in FIG. For example, when the wall material of the building is integrated from the drawing 22 of the building shown in FIG. 5, the drawing 22 is first attached on the digitizer main body 4. At this time, the cursor 5 on the drawing 22
When is moved, the coordinate signal S ₁ indicating the position of the cursor 5 with respect to the digitizer main body 4 is sequentially output to the CPU 2, and the coordinate signal S ₁ is converted by the coordinate point reading conversion means 11 into the CRT screen 21.
Is converted into the coordinates of, by the control of the screen display control means 16,
As shown in FIG. 6, a "+" cursor 23 that moves on the CRT screen 21 is displayed corresponding to the position of the cursor 5 with respect to the digitizer main body 4.

Then, while the command is displayed on the screen 21 as shown in FIG. 6, the cursor 23 on the screen 21 moves to "wall / input".
The "wall / input" command is selected by the digitizer 1 by moving the cursor 5 on the digitizer main body 4 so as to come to the command of and the first button 6 of the cursor 5 is pressed. Then, as shown in FIG. 7, a display 24 "Enter the reference line" appears on the screen 21.

After that, the cursor 5 is aligned with the points A on the bottom sides A and B of the drawing 22, and the first button 6 is pressed to input the coordinates by the digitizer 1 in the step of FIG. Coordinate conversion is performed by. As a result, the converted coordinates of point A are CP in steps.
It is stored in U2 and displayed on the screen 21 as shown in FIG.
The cursor 23 is displayed at A '. Then, when the cursor 5 is aligned with the point B on the drawing 22 and the first button 6 is pressed, the coordinates of the second point are input or the coordinates are stored in step, and the reference line A on the drawing 22 shown in FIG. , B corresponding to the reference lines A ', B'are displayed on the screen 22, and at the same time, the desktop calculator 25 is displayed on the screen 22. Then, in step, the inclination of the reference lines A and B, that is, the drawing with respect to the digitizer main body 4
The inclination of 22 is calculated by the inclination determining means 12, and the calculated inclination is stored.

When the actual size of the reference lines A and B of the drawing 22 is input by the digitizer 1 using the desktop calculator 25 on the drawing 21, the scale discriminating means 13 calculates the actual size of the reference lines A and B from the actual size of the drawing 22 in step S22. The scale is calculated and stored, and the screen
The reference lines A ', B'and the desktop calculator 25 disappear from 21.

Next, the cursor 5 is moved to the points A, C, D, E, F, on the drawing 22.
By moving in the order of G, H, I, J and pressing the first button 6 in sequence, points A, C,
The coordinates of D, E, F, G, H, I and J are input. Further, the coordinate point reading and converting means 11 performs a coordinate conversion in a step, and the converted coordinates are further in a step by the coordinate angle correcting means 14 so that the inclination of the CRT screen 21 is not shown in the figure. It is corrected by the inclination calculated by. Then, the corrected coordinates are sequentially stored by the converted coordinate storage means 15, and the screen display control means 16 causes points A, C, D, E, F, G of the drawings as shown in FIGS. 10 to 12. , H, I, J points A ', C', D ', E', F ', G', H ',
The line connecting I'and J'is sequentially displayed on the CRT screen 21, and C
On the RT screen 21, a diagram corresponding to the building outer wall of the drawing 22 is displayed.

Finally, when the "integrate" command shown in FIG. 6 is selected by the digitizer 1, the points of the building in FIG. 22 are calculated from the plurality of converted coordinates stored by the converted coordinate storage means 15 and the scale calculated by the scale determining means 13. A, D, E, F, G,
Calculate the actual area of the area surrounded by H, I, and J,
Add up the wall material of the building. Further, at this time, the operator can write the drawing on the plotter on an accurate scale without any particular meaning.

<Effect of the Invention> According to the present invention, the inclination of the drawing 22 placed on the digitizer main body 4 with respect to the digitizer main body 4 is calculated, and the point coordinates input by the digitizer 1 are corrected by the calculated inclination.
Even if the drawing 22 is set on the digitizer main body 4 in a tilted state, the screen 21 can display a diagram without any inclination, so that the screen 21 can be easily displayed on the digitizer main body 4 and can be displayed conveniently. Eliminates the hassle of attaching drawings accurately.

Also, since the scale of the drawing 22 is calculated from the actual dimensions of the input reference line, even if the actual scale is different from the display of the drawing 22 by reducing, enlarging or copying the drawing 22, it is easy. You can calculate the accurate scale of Drawing 22 with various operations,
For example, it is possible to easily and accurately calculate and estimate buildings, and to draw drawings on a plotter on an accurate scale.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a block diagram,
2 is a flow chart for explaining the operation, FIG. 3 is a perspective view of the digitizer, FIG. 4 is a perspective view of the CRT display device, and FIG.
The figure is a plan view of the drawing placed on the digitizer main body, and FIGS. 6 to 12 are front views of the CRT screen. 1 ... Digitizer, 2 ... CPU, 3 ... CRT display device, 4
... main body of digitizer, 12 ... inclination judging means, 13 ... scale judging means, 14 coordinate angle correcting means, 21 ... CRT screen, 22 ... drawing.

Claims (2)

[Claims] 1. A drawing (22) placed on a digitizer body (4) in which a digitizer (1) connects point coordinates input to a CPU (2) to display a diagram on a screen (21). The inclination of the drawing (22) with respect to the digitizer body (4) is calculated from the two-point coordinates input by the digitizer (1) using the upper line as the reference line, and the drawing (22) is calculated from the actual dimensions of the input reference line. ) Is calculated, and the point coordinates input on the digitizer (1) are corrected by the calculated tilt so that the tilt between the digitizer body (4) and the drawing (22) does not appear on the screen (21). A method of inputting a diagram into a computer characterized in that 2. A drawing (22) placed on a digitizer main body (4) in which a digitizer (1) connects point coordinates input to a CPU (2) to display a diagram on a screen (21). An inclination discriminating means (12) for calculating the inclination of the drawing (22) with respect to the digitizer body (4) from the two-point coordinates input by the digitizer (1) with the upper line as the reference line, and the actual input of the reference line. The scale discriminating means (13) for calculating the scale of the drawing from the dimension of the drawing, and the inclination of the digitizer main body (4) and the drawing (22) were input by the digitizer (1) so that they would not appear on the CRT screen (21). A diagram inputting device for a computer, comprising: a coordinate angle correcting means (14) for correcting the point coordinates by the inclination calculated by the inclination determining means (12).