JPH0212516A - Actual dimension display system - Google Patents

Abstract

PURPOSE:To display the actual dimension of a desired part on a graphic, etc., being displayed on a screen with a scale designated by a user in real time by calculating length corresponding to the preset scale of a position designation locus in real time, and displaying the result of calculation sequentially on a display device. CONSTITUTION:Map information written on a display memory 25 is displayed on an LCD11 in a unified type display input device 10 by the control of a display control part 26. And the part on a tablet 12 is traced with a stylus pen 21, and position designation from a point P1 to a point P2 is performed successively, and the travel locus 31 of the above position designation is displayed on the LCD11 in real time by the control of the display control part 26. And an actual dimension arithmetic part 24 computes the actual dimension value of the travel distance of the stylus pen 21 in real time, then, actual dimension distance is displayed on an actual dimension display field 15 by the control of the display control part 26. In such a way, it is possible to recognize the actual distance of the desired part on a map traced with the stylus pen by the user.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention provides an information processing device equipped with an integrated display and input device in which a coordinate input tablet is stacked and integrated on the display surface of the display device. In particular, the present invention relates to an actual size display method suitable when the actual length of an arbitrary part of a figure displayed on a display device is required.

(Prior Art) In recent years, various information processing devices have been developed that display a user-specified map on a display device at a scale (magnification) selected and specified by the user according to map information stored in an external storage device or the like. There is. The map display function of this type of information processing device can be used, for example, by first displaying a map at a highly reduced scale, and once the target area is found on the displayed map, the scale value is You can quickly find your destination by changing the map and enlarging the destination map. In the information processing device having the above map display function,
Directions, place names, roads, etc. can also be displayed, and some devices can also display distances between predetermined points. However, the length (distance il) between any two points on the map
No device was known to display this information. The above is the same for information processing devices that can draw figures, illustrations, dimension drawings of specifications, etc., and display the actual length (actual size) of the desired part (not the length on the screen). There was nothing. In the following description, images such as maps, figures, illustrations, dimensional drawings of specifications, etc. will be referred to as images of figures etc. for the sake of simplicity.

(Problem 8 to be solved by the invention) As mentioned above, conventionally, even if a device having a display function that displays an image such as a figure at a set scale is used, it is difficult to display a desired part of the image, regardless of a predetermined part of the image. The problem was that it was not possible to know the actual size of the

Therefore, it is an object of the present invention to enable display in real time of a desired portion of an image such as a figure displayed on a screen at a scale specified by the user, and furthermore, of the actual size of a stroke portion being drawn at a scale set by the user. Take it as a challenge.

[Structure of the Invention (Means for Solving the Problems) This invention provides an integrated display and input device in which a transparent coordinate input tablet is superimposed on the display surface of a display device, and an arbitrary coordinate position on the tablet is integrated. a position specifying means for specifying a position; an input means for inputting coordinate positions specified by the position specifying means from a tablet; Based on the coordinate position and set scale,
The first feature is that an actual size calculating means is provided for calculating in real time the length of the position specifying trajectory according to the set scale by the position specifying means, and the calculation results of the actual size calculating means are sequentially displayed on a display device. shall be. In addition, the present invention provides the following features: based on the coordinate positions sequentially input by the input means,
The second feature is that the position designation locus of the position designation means is displayed on the display device in real time.

(Function) According to the above configuration, the position specification locus of the position specification means on the tablet is displayed on the display device in real time, so for example, when drawing a figure etc. by continuous position specification using the position specification means. If so, you can know the actual size of the stroke being drawn.

In addition, since the display device and the tablet are integrated and the display screen can be seen from the tablet, it is possible to continuously move a desired part of an image such as a figure displayed at a set scale on the display device using a position specifying means. By tracing by specifying a position, the traced desired part (i.e. the specified position locus)
You can know the actual size of

(Embodiment) FIG. 1 is a schematic configuration diagram showing an embodiment of an information processing apparatus to which the present invention is applied, and 10 is an integrated display input device. The integrated display input device IO is a flat display! Neu,
For example, a transparent coordinate input tablet 12 is stacked and integrated on the display surface of a liquid crystal display device (hereinafter referred to as LCD) 11, and is used for screen display and coordinate input.

In this embodiment, when displaying an image such as a figure,
The first of the integrated display input device 10 (LCD 11 within)
The predetermined display area is used as a scale display field 14 for indicating (displaying) how much scale the image (display image) 13 on the screen is displayed compared to its actual size. The predetermined display area is the actual length (actual size) corresponding to the handwriting drawn with the stylus pen 21, which will be described later.
It is used as an actual size display field 15 for displaying. Reference numeral 20 indicates the main body of the information processing device (hereinafter referred to as the processing device main body), and 21 indicates the input position relative to the tablet 12 (
A stylus pen 30, which is a position specifying means for specifying coordinates), is an external storage device, such as an optical disk device, which is used in connection with the processing device main body 20. The optical disk device 30 is used to store large-capacity information such as map information.

FIG. 2 shows a block configuration of the information processing apparatus shown in FIG.

In the same figure, 22 is a CPU that controls the entire device;
24 is a main memory for storing programs, data, etc. necessary for control processing of the CPU 22, and 24 is a stylus pen 2.
The coordinate values input by position specification using 1 and (1st
This is an actual size calculation unit for calculating an actual size corresponding to the moving distance of the stylus pen 21 (distance of input handwriting) from the scale (indicated by the scale display field 14 in the figure). 25 is a display memory for storing a display image to be displayed on the integrated display input device 10 (LCD 11 therein);
2B is a display control unit for displaying a display image in the display memory 25 on the integrated display input device 10. 27 is a stylus control unit that controls the stylus pen 21;
8 is a tablet control unit for controlling the tablet 12 and inputting coordinates (measurement); 29 is a processing device main body 20;
An external storage device built into the computer, such as a floppy disk device. Note that it is also possible to provide the stylus pen 21, stylus control section 27, tablet control section 28, etc. on the integrated display input device 10 side.

Next, the operation of an embodiment of the present invention will be explained with reference to the flowchart in FIG. 3 and the display screen example in FIG. 4, taking as an example the actual size display in the case of map display.

First, the CPU 22 in the processing device main body 20 controls the entire device according to a program loaded into the main memory 23 from the floppy disk device 29.

By this control, for example, in the case of map display, map information is read from the floppy disk device 29 or the optical disk device 30 and written into the display memory 25 (step Sl). The map information written in the display memory 25 is displayed on the LCD II of the integrated display input device 10 under the control of the display control section 2B, for example, as shown in FIG. 4(a) (step S2). At this time, a scale display field 14 and an actual size display field 15 are also displayed. In this state, the actual size displayed in the actual size display field 15 is 0.

Now, when the map display as shown in FIG. 4(a) is performed, coordinate measurement of the tablet 12 is started under the control of the tablet control section 28 and the stylus control section 27 (
Step S3). In this state, if the user wants to know the actual distance (actual size) from point 21 to point 22 shown in FIG.
with the tablet 1 corresponding to the display area turned on.
The portion on 2 is traced with the stylus pen 21 to continuously designate the position from the PL point to the 22nd point.

Result of position specification using stylus pen 21 (specified coordinate values)
is detected by the tablet control unit 28 (step S4),
In response to the detection, the movement trajectory (input handwriting) 31 of the stylus pen 21 (on the tablet 12) is displayed on the LCD 11 in real time under the control of the display control unit 2B, as shown in FIG. 4(b). (Step S5).

In addition, FIG. 4(b) shows the point P3 between the 21st point and the 22nd point.
This shows a state in which the tip of the stylus pen 21 has been moved up to this point.

Now, when the coordinate value of the position specified by the stylus pen 21 is detected by the tablet control unit 28, the actual size calculation unit 24 calculates the detected value and the current scale (the scale displayed in the scale display field 14). , the actual size value of the movement distance of the stylus pen 21 (the distance of the movement trajectory of the stylus pen 21 from the position specification start point to the current point) (
(distance when the scale is 1/1) is calculated in real time (step SS). The principle of calculating the moving distance of the stylus pen 21 is shown in FIG. Here, a new movement M (partial movement distance) is obtained every time the X or y coordinate of the movement trajectory (input handwriting) of the stylus pen 21 changes by a predetermined amount, and a new movement M (partial movement distance) is calculated so far. The distance traveled to the current point is calculated by adding the distance traveled from the starting point to the distance traveled from the starting point. The above partial movement distance (a
l) is approximated by the length of the line segment that connects the previous travel distance calculation point (or position specification start point if this is the first calculation) and the current travel distance calculation point, and Letting the differences in the x and y directions be bl and cl, it is determined by the following formula a1 - Shibema W] Seal T Correct - (1). Therefore, in the example of FIG. 5, since the current value of i is 16, if the moving distance of the stylus pen 21 from the position designation start point to the current point is a, then this a is a-Σ al...・・・
(2) Calculated by l-1. Note that the predetermined amount is preferably set to a value as small as possible if only accuracy is considered. However, if a small value is used, the amount of calculation increases, so the predetermined amount may be set as appropriate in consideration of accuracy and processing time.

The moving distance of the stylus pen 21 on the screen (tablet 12) is determined by the above method, and the actual distance 11tl (actual size) is calculated from this moving distance and the scale. The calculated actual size distance is displayed in the actual size display field 15 on the LCD II display screen as shown in FIG. 4(b) (step S7).

As a result, the user can know the actual distance of the desired portion on the map traced with the stylus pen 21.

When step S7 is completed, it is checked whether the switch (not shown) of the stylus pen 21 is turned off (step S8), and if it is turned off, the operation of measuring the moving distance of the stylus pen 21 ends.

On the other hand, if the stylus pen 21 is not turned off, the system waits for the next coordinate input from the stylus pen 21 (step S9). In this case, if new coordinates have been input within a predetermined period since the previous coordinate input (step 5IO), that is, if coordinates have been input continuously, the process returns to step S4 and thereafter, and the currently displayed The moving trajectory and moving distance of the stylus pen 21 are changed to the latest moving trajectory and moving distance.

On the other hand, if new coordinates are input after a predetermined period has passed since the previous coordinate input, that is, if the coordinate input from the stylus pen 21 is temporarily interrupted, the movement trajectory of the stylus pen 21 currently displayed After erasing the movement distance (on the actual size display field 15) and initializing it to 0 (step 5it), the process returns to step S4 and thereafter, and the movement trajectory of the stylus pen 21 from the new input point after the interruption and the movement distance are initialized to zero (step 5it). The distance traveled is displayed. Therefore, when the user discontinues position specification by moving the stylus pen 21 away from the tablet 12 by a predetermined distance or more, the LCD II displays the movement trajectory and movement distance of the stylus pen 21 until just before the user releases the stylus pen 21 from the tablet 12. In this state, when the user places the tip of the stylus pen 21 at a desired point on the tablet 12 and traces a desired part of the map displayed on the LCD II (that is, when the user resumes the tracing operation with the stylus pen 21), a new stylus The movement trajectory and movement distance of the pen 21 from the point where the position specification by the pen 21 is started are displayed.

In this embodiment, the scale display field 14 is also used as a scale selection operation field, as described below. That is, in this embodiment, when an arbitrary position in the area on the tablet 12 corresponding to the scale value display portion of the scale display field 14 is specified with the stylus pen 21, the scale of the map being displayed is switched. Here, several predetermined scales are sequentially switched each time a position within the scale display field 14 is designated by the stylus pen 21. At the same time as this scale switching, the map itself is also redisplayed at the scale after the switch, and furthermore, the movement trajectory of the stylus pen 21 is also redisplayed at the scale after the switch.

Furthermore, when an arbitrary position in the area on the tablet 12 corresponding to the unit display portion of the scale display field 14 is specified with the stylus pen 21, the unit of length of the map being displayed is switched.

Next, the operation when newly inputting (drawing) a figure, illustration, map, etc. using the stylus pen 21 will be explained with reference to the display screen example shown in FIG.

In this embodiment, the scale value displayed in the scale display field 14 is 1/1 in the initial state.

Therefore, if another scale is required, use the stylus pen 21 to display the scale in the scale display field 14 as described above.
By specifying the position of the area of the tablet 12 several times that corresponds to the scale value of
15).

In addition, the unit of length (distance) is [c11] in the initial state in this embodiment. Therefore, if another unit is required, use the stylus pen 21 as described above.
By specifying the position of the area of the tablet 12 corresponding to the unit part of the scale display field 14 several times using the , the desired unit can be selectively switched. In this state, the user uses the stylus pen 21 to
Figures, illustrations, maps (6th
When a figure (figure in the figure) is input by hand, the input trajectory is displayed in real time on the LCD 11 of the integrated display/input device IO as shown in FIG. At the same time, the actual length of the input trajectory is displayed in the actual size display field 15 based on the scale indicated in the scale display field 14.

Therefore, when drawing a design image, etc., by setting in advance the ratio (scale) between the actual image to be drawn and the drawn (displayed) image drawn (displayed) on the integrated display input device 10, the drawing Draw (handwritten input) while visually checking in real time whether the image (length or size) is the correct ratio (scale) to the actual image.
can do.

The device shown in FIG. 1 described above can be applied to, for example, an automobile CD (compact disc)-ROM navigation system. In this type of conventional navigation system, position information regarding the current position and traveling direction of the vehicle is provided, but information regarding the distance to the target value is not displayed. Further, it is not possible to know information about how far the course freely selected by the driver is to the target value. Therefore, using a device configured as shown in Fig. 1, the distance to the target value is displayed in real time by tracing the drive course selected by the driver on the displayed map using the stylus pen 21. be able to.

In addition, when learning about maps and scales in geography teaching materials in school education, the device with the configuration shown in Figure 1 is used as a computer aided learning (CAI) device for learning distances on maps and actual distances. It is available as.

Furthermore, in a system that searches for dimension drawings and design drawings in specifications, the dimensions of a desired part other than the part whose dimensions are displayed in advance along with the drawing can be retrieved using the device configured as shown in Figure 1. can be known in real time by tracing with the stylus pen 21.

In the above embodiments, a case has been described in which an LCD II is used as the display device of the integrated display/input device 10, but it is also possible to use another flat display, such as a plasma display. Furthermore, it is not limited to a flat display; for example, as shown in FIG.
It is also possible to use an integrated display/input device 40 in which two devices are stacked one on top of the other. In addition, as a position specifying means (coordinate input means),
It is also possible to use the cursor movement keys of a mouse or keyboard. In this case, it is possible to use a normal display device in place of the integrated display input device, but input efficiency is reduced because the position cannot be specified directly on the screen.

[Effects of the Invention] As detailed above, according to the present invention, the actual size of a desired portion of an image such as a figure displayed on a screen at a set scale, and furthermore, a stroke portion being drawn by a user at a set scale, can be adjusted. Can be displayed in real time.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing one embodiment of an information processing apparatus to which the present invention is applied, FIG. 2 is a block configuration diagram of the information processing apparatus shown in FIG. 1, and FIG. 3 is a flowchart for explaining the operation. Figure 4 is a diagram showing an example of the display screen when displaying a map, Figure 5
The figure shows the moving distance M of the stylus pen (distance of the position specification trajectory)
FIG. 6 is a diagram showing an example of a display screen when inputting a figure, and FIG. 7 is a diagram showing a modification of the integrated display/input device shown in FIG. 1. . 10, 40... integrated display input device, 11... LC
D (display device), 12.42...tablet, 1
4... Scale display field, 15... Actual size display field, 20... Processing device main body, 22... CPU,
24...Actual size calculation section, 2G...Display control section, 27.
... Stylus control section, 28... Tablet control section,
29... Floppy disk device, 30... Optical disk device, 41... CRT display (display device)
. Applicant's Representative Patent Attorney Takehiko Suzue

Claims (2)

[Claims] (1) An integrated display input device in which a transparent coordinate input tablet is superimposed on the display surface of the display device, a position specifying means for specifying an arbitrary coordinate position on the tablet, and this position specifying means. Based on the input means for inputting the specified coordinate position from the tablet, and the coordinate position and set scale that are sequentially input by the input means during the period in which the position is continuously specified by the position specifying means, the position is determined. The present invention is characterized by comprising an actual size calculation means for calculating in real time the length of the position designation locus by the designation means according to a set scale, and the calculation results of the actual size calculation means are sequentially displayed on the display device. Actual size display method. (2) The first aspect of the present invention is characterized in that display control means is provided for displaying the position designation locus of the position designation means on the display device in real time based on the coordinate positions sequentially inputted by the input means. Actual size display method described.