JP6965058B2 - Waveform display device and waveform display program - Google Patents

Description

The present invention is a waveform display device including a processing unit for displaying a designated display for designating an arbitrary part in the signal waveform together with a signal waveform based on waveform data on the waveform display screen, and a waveform display device for such processing. It relates to a waveform display program to be executed by the processing unit of.

As a waveform display device and a waveform display program of this type, the applicant discloses a waveform recorder and an operation program thereof in the following patent documents. This waveform recorder integrates the waveform recorder according to the A / D converter that generates waveform data, the storage memory that stores the generated waveform data, the main memory that stores the system program (operation program), etc., and the system program. It includes a CPU (processing unit) that is specifically controlled, and a CRT (display unit) that displays a signal waveform based on waveform data according to the control of the CPU.

In this case, in this type of waveform recorder (waveform display device), the measured value and measurement time (or elapsed time from the start of measurement) of the part specified by the cursor display in the signal waveform are numerically displayed together with the signal waveform. It is configured so that it can be displayed. Therefore, even in the shape recorder disclosed by the applicant, it is possible to display a cursor display (line cursor) for designating an arbitrary part in the signal waveform on the CRT together with the signal waveform.

Further, in this type of waveform recorder (waveform display device), when the above-mentioned arbitrary part specified by the cursor display is changed, the cursor display for the signal waveform is displayed by moving the cursor display by performing the cursor movement operation. The position can be changed directly, or the position of the signal waveform with respect to the cursor display can be changed by scrolling the signal waveform by performing a waveform scroll operation, and the position of the cursor display with respect to the signal waveform can be changed relatively. It is configured so that it can be done.

As a result, when a singular point exists in the signal waveform displayed on the CRT, the measured value or measurement of the singular point is performed by performing a cursor movement operation or a waveform scrolling operation so as to align the cursor display with the singular point. It is possible to display the time (elapsed time) and the like numerically together with the signal waveform.

Japanese Unexamined Patent Publication No. 5-5754 (Pages 2-3, Fig. 1-5)

However, the conventional waveform display device including the waveform recorder disclosed by the applicant has the following problems to be improved. Specifically, in the conventional waveform display device, the cursor display is aligned with the singular point of the signal waveform by performing a cursor movement operation or a waveform scrolling operation (the cursor display is displayed at the position of the singular point), so that the singular point is displayed. It is configured so that the measured value and the measured time (elapsed time) of the above can be displayed numerically together with the signal waveform.

In this case, the conventional waveform display device adopts a configuration in which the cursor display is moved or the signal waveform is scrolled by rotating the jog dial or shuttle dial and pressing the move key or scroll key. Further, in recent years, there is also a waveform display device capable of moving the cursor display or scrolling the signal waveform by dragging the mouse, touch pad, touch panel, or the like.

However, in any of the above configurations, for example, when a signal waveform whose signal level fluctuates greatly in a short cycle is displayed, the lines of the signal waveform are densely packed in the screen depending on the set display magnification. It may be difficult to identify the singular point to which the cursor display should be aligned.

In addition, even if a signal waveform is displayed in which the singular point can be easily identified, an arbitrary singular point in the signal waveform can be accurately specified by the cursor display depending on the set display magnification. It may be difficult to identify whether or not it is present. Therefore, the cursor display may be displayed at a position slightly deviated from the singular point, and the measured value or the measurement time (elapsed time) for a portion different from the singular point may be displayed.

Further, depending on the set display magnification, the distance between the cursor display position and the singular point position becomes long, and the cursor display is displayed in the singular point position. It becomes necessary to move the signal waveform greatly or scroll the signal waveform greatly. Further, when the above distance is longer, the singular point may not exist in the display screen (the singular point exists in the portion of the signal waveform that is not displayed on the display screen).

Therefore, when the cursor display is adjusted to an arbitrary singular point of the signal waveform in this type of waveform display device, the singular point can be easily identified and the specified singular point can be easily identified by the cursor display prior to the cursor movement operation or the waveform scroll operation. The signal waveform can be specified at an accurate display magnification, and the cursor display can be adjusted to the singular point without moving the cursor display or scrolling the signal waveform. Need to be displayed.

Therefore, in this type of waveform display device, display of signal waveform and cursor display, change of display magnification (enlargement / reduction), alignment of cursor display with respect to singular point, and restoration of display magnification (reduction / enlargement) are performed. Must be executed in order. Therefore, these operations are complicated, and the time required to specify an arbitrary singular point in the signal waveform by the cursor display is long, and it is preferable to improve this point.

The present invention has been made in view of the above problems, and is a waveform display device and a waveform display capable of easily displaying a designated display for designating an arbitrary part in a signal waveform at a desired position in the signal waveform in a short time. The main purpose is to provide a program for the user.

In order to achieve the above object, the waveform display device according to claim 1 makes the first parameter in the waveform data correspond to the first direction on the waveform display screen, and displays the second parameter in the waveform data. A signal waveform based on the waveform data is displayed on the waveform display screen corresponding to a second direction intersecting with the first direction on the screen, and the first parameter in the signal waveform has an arbitrary parameter value. A waveform display device including a processing unit for displaying a designated display for designating a portion together with the signal waveform on the waveform display screen, wherein the other first one with respect to either the signal waveform or the designated display. The processing unit includes a pointing device capable of operating a movement along a direction and changing a display magnification of the signal waveform in at least the first direction, and the processing unit displays the signal waveform and the designated display in the waveform display. When a drag operation starting from an arbitrary point on the designated display is performed by the pointing device in the state of being displayed on the screen, the first direction along the first direction in the drag operation is performed. The other is moved along the first direction with respect to the one according to the direction and size of the operating component, and the part of the arbitrary parameter value specified by the designated display in the signal waveform is moved. to change the magnification of the signal waveform in accordance with the direction and magnitude of the second operation component along the second direction in the drag operation while maintaining the state of being displayed on the waveform display screen, wherein At the end of the drag operation, the signal waveform is displayed at the display magnification before the start of the drag operation .

Further, the waveform display device according to claim 2 is the waveform display device according to claim 1, wherein the processing unit per operation amount of the pointing device in the first direction from the start to the end of the drag operation. The amount of movement of the designated display in the first direction in the waveform display screen is kept constant.

The waveform display apparatus according to claim 3, wherein, in the waveform display apparatus according to claim 1, wherein the processing unit, the component ratio between the size of the size and the second operating components of the first operation component When is below the predetermined threshold value, the display magnification of the signal waveform is not changed, and when the component ratio is equal to or higher than the threshold value, the orientation and magnitude of the second operating component The display magnification of the signal waveform is changed accordingly.

Further, in the waveform display program according to claim 4, the first parameter in the waveform data corresponds to the first direction on the waveform display screen, and the second parameter in the waveform data corresponds to the second parameter on the waveform display screen. A signal waveform based on the waveform data is displayed on the waveform display screen corresponding to the second direction intersecting with the first direction, and the first parameter specifies a part having an arbitrary parameter value in the signal waveform. This is a waveform display program that causes the processing unit of the waveform display device to execute a process of displaying the designated display for the purpose on the waveform display screen together with the signal waveform, and displays the signal waveform and the designated display in the waveform display screen. In this state, the operation of moving the signal waveform and the designated display along the other in the first direction, and the operation of changing the display magnification of the signal waveform in at least the first direction. When a drag operation starting from any one point on the designated display is performed by a pointing device capable of the above, the orientation and size of the first operation component along the first direction in the drag operation Correspondingly, the other is moved along the first direction with respect to the one, and the portion of the arbitrary parameter value specified by the designated display in the signal waveform is displayed in the waveform display screen. The display magnification of the signal waveform is changed according to the direction and magnitude of the second operation component along the second direction in the drag operation while maintaining the state of being dragged, and at the end of the drag operation, the drag is performed. The processing unit is made to execute the process of displaying the signal waveform at the display magnification before the start of the operation.

In the waveform display device according to claim 1, while the processing unit displays the signal waveform and the designated display on the waveform display screen, the pointing device performs a drag operation starting from an arbitrary point on the designated display. When the signal waveform is used, the other is moved along the first direction with respect to one according to the direction and size of the first operating component along the first direction in the drag operation, and is designated and displayed in the signal waveform. The signal waveform according to the direction and magnitude of the second operation component along the second direction in the drag operation while maintaining the state in which the part of the arbitrary parameter value specified by is displayed in the waveform display screen. The display magnification of is changed, and at the end of the drag operation, the signal waveform is displayed at the display magnification before the start of the drag operation . Further, in the waveform display program according to claim 4 , the processing unit of the waveform display device is made to execute the above processing.

Therefore, according to the waveform display device according to claim 1 and the waveform display program according to claim 4 , it is difficult to visually recognize a part (singular point) of an arbitrary parameter value in the signal waveform displayed on the waveform display screen. When the display magnification of the signal waveform is too large and the singular point is not displayed on the waveform display screen, the designated display is moved toward such a singular point and the display magnification of the signal waveform is changed. The change operation can be performed at the same time by one drag operation. Therefore, the designated display can be easily displayed in a short time at a site (singular point) of an arbitrary parameter value in the signal waveform. Also, even if the display magnification of the signal waveform is changed when adjusting the specified display to the part (singular point) of an arbitrary parameter value, the display magnification is restored to the display magnification before the operation without performing the operation to restore the display magnification. be able to.

According to the waveform display device according to claim 2 and a waveform display program for causing the processing unit to execute a process of displaying a signal waveform and a designated display, the pointing device in the first direction from the start to the end of the drag operation. By keeping the movement amount of the designated display in the first direction in the waveform display screen per operation amount constant, the movement amount of the designated display per operation amount of the pointing device increases as the display magnification of the signal waveform increases. Unlike the configuration and processing method in which the movement amount of the specified display per operating amount of the pointing device decreases as the display magnification of the signal waveform increases or the display magnification of the signal waveform becomes smaller, the designated display is displayed regardless of the display magnification of the signal waveform. By operating the pointing device as much as you want to move, the specified display can be reliably and easily moved to the part (singular point) of an arbitrary parameter value. As a result, it becomes difficult to fine-tune the position of the designated display when the signal waveform is enlarged, or the designated display is moved over a certain distance while the signal waveform is reduced. It is possible to reliably move the designated display to a part (singular point) of an arbitrary parameter value without increasing the operation amount (or the number of drag operations) of the pointing device.

According to the waveform display device according to claim 3 , and a waveform display program for causing the processing unit to execute a process of displaying a signal waveform and a designated display, the size of the first operating component and the size of the second operating component When the component ratio of is below the predetermined threshold, the display magnification of the signal waveform is not changed, and when the component ratio is above the threshold, it depends on the size and orientation of the second operating component. By changing the display magnification of the signal waveform, even if the drag operation is performed in the diagonal direction in which the first operation component is slightly present at the time of the drag operation for changing only the display magnification of the signal waveform, the specified display is displayed. The display magnification of the signal waveform can be changed without moving.

It is a block diagram which shows the structure of the measurement system 100. It is a display screen figure which shows an example of the waveform display screen 20. It is explanatory drawing for demonstrating the relationship between the drag operation in the direction of arrow C, and the operation components A01, B01. It is a display screen figure which shows an example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows another example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows still another example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows an example of the waveform display screen 20 in the state which the drag operation is completed. It is a display screen figure which shows still another example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows another example of the waveform display screen 20. It is a display screen figure which shows another example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows still another example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows another example of the waveform display screen 20 in the state which completed the drag operation. It is a display screen figure which shows still another example of a waveform display screen 20. It is explanatory drawing for demonstrating the relationship between the drag operation in the direction of arrow C, and the operation components A02, B02. It is a display screen figure which shows still another example of the waveform display screen 20 during a drag operation. It is a display screen figure which shows still another example of the waveform display screen 20 in the state which completed the drag operation. It is a block diagram which shows the structure of the measuring apparatus 200.

Hereinafter, embodiments of the waveform display device and the waveform display program will be described with reference to the accompanying drawings.

The measurement system 100 shown in FIG. 1 includes a measurement device 1 and a waveform display device 2, and is configured to be capable of performing measurement processing on a measurement target and display processing of a signal waveform based on the measurement result.

The measuring device 1 measures a predetermined measured quantity (for example, an electrical parameter such as a current value, a voltage value, a resistance value and a phase of an input signal) and measures the measured value data Dw (“waveform data”). It is configured so that the measurement process for generating (one example) is executed and the generated measured value data Dw can be transmitted to the waveform display device 2. In this case, the measuring device 1 of this example includes, as an example, a communication unit composed of a communication adapter capable of wireless communication conforming to a short-range wireless communication standard such as a Bluetooth (Bluetooth: registered trademark) standard, and various controls are provided. It is configured so that signals and measured value data Dw can be transmitted and received by wireless communication.

The waveform display device 2 corresponds to a "waveform display device", and as an example, is composed of a tablet terminal, a smartphone, a personal computer, or the like in which program data Dp corresponding to the "waveform display program" is installed. Specifically, the waveform display device 2 includes a communication unit 11, an operation unit 12, a display unit 13, a processing unit 14, and a storage unit 15.

In this example, the waveform display device 2 is described as being configured on the tablet terminal as an example, but it is easy to understand the configuration of the “waveform display device” and the processing procedure of the “waveform display program”. Therefore, the illustration and description of the components other than the above-mentioned components 11 to 15 in the tablet terminal will be omitted. The communication unit 11 is composed of a communication adapter capable of wireless communication according to a short-range wireless communication standard such as Bluetooth, similarly to the communication unit of the measuring device 1 described above. As will be described later, the communication unit 11 transmits and receives various data to and from various wireless communication devices such as the measuring device 1 under the control of the processing unit 14.

The operation unit 12 includes a touch panel, which is an example of a "pointing device capable of moving and changing operations", and various operation switches such as a power switch and a volume switch, and processes operation signals corresponding to the operations for these. Output to 14. In this case, in the waveform display device 2 of this example, by connecting a pointing device (not shown) composed of external devices such as a mouse, a trackball, and a touch pad, various operations are performed by those pointing devices. It is configured to be possible. As will be described later, the display unit 13 displays various display screens such as the waveform display screen 20 (an example of the “waveform display screen”: see FIGS. 2, 4 to 13, 15, 16) under the control of the processing unit 14.

The processing unit 14 is an example of the “processing unit” and comprehensively controls the waveform display device 2. Specifically, the processing unit 14 controls the measuring device 1 via the communication unit 11 to execute the measurement process according to the program data Dp, and the measured value data Dw transmitted from the measuring device 1 is the communication unit 11. When received by, the measured value data Dw is stored in the storage unit 15. Further, the processing unit 14 displays the waveform display screen 20 on the display unit 13 according to the program data Dp, and the signal waveforms W1, W2 ... Based on the measured value data Dw and the signal waveforms W1, W2 ... Display the cursor display 21, 21a (an example of "designated display") that specifies the part of.

The storage unit 15 stores a system program for operating the waveform display device 2 as a tablet terminal, program data Dp corresponding to the “waveform display program”, measurement value data Dw transmitted from the measurement device 1, and the like.

Next, the display processing of the signal waveforms W1, W2 ... By the measurement system 100 (waveform display device 2: program data Dp) will be described with reference to the attached drawings. It is assumed that the installation of the program data Dp on the waveform display device 2 and the Bluetooth pairing between the communication unit of the measurement device 1 and the communication unit 11 of the waveform display device 2 have already been completed.

First, the measuring device 1 is connected to the measurement target, and the operation unit 12 of the waveform display device 2 is operated to activate the program data Dp. Next, the operation unit 12 is operated to display a measurement processing screen (not shown) on the display unit 13, and the measurement process by the measuring device 1 is started. At this time, the processing unit 14 causes the communication unit 11 to transmit a control signal instructing the start of measurement to the measuring device 1, and in response to this, the measuring device 1 executes the measurement process to generate the measured value data Dw. do. Further, the measuring device 1 transmits the generated measured value data Dw to the measuring device 1, and the waveform display device 2 processes when the measured value data Dw transmitted from the measuring device 1 is received by the communication unit 11. The unit 14 stores the measured value data Dw in the storage unit 15.

On the other hand, when the measurement process by the measuring device 1 is completed and the measured value data Dw for a predetermined time is stored in the storage unit 15, the operation unit 12 of the waveform display device 2 is operated as shown in FIG. , The waveform display screen 20 is displayed on the display unit 13. On the waveform display screen 20, along with the signal waveforms W1 and W2 based on the measured value data Dw, a cursor display 21 for designating an arbitrary portion in both signal waveforms W1 and W2 is displayed.

In this case, in the waveform display screen 20 shown in FIG. 2 and FIGS. 4 to 12 which will be referred to later, the “measurement time (elapsed time)” which is an example of the “first parameter” is used as an example of the “first direction”. It is an example of a "second direction" that corresponds to the direction of a certain arrow AL, AR and intersects (or is orthogonal to) the "signal level" that is an example of the "second parameter" with the "first direction". A screen configuration that can display signal waveforms W1, W2, etc. based on the measured value data Dw is adopted so as to correspond to the directions of the arrows BU and BD.

Further, the cursor display 21 is an "arbitrary measurement time" which is an example of an arbitrary point (an arbitrary parameter value) in the time axis direction (direction of the arrows AL and AR) in the "signal waveform" such as the signal waveforms W1 and W2. It is a display (time axis cursor display) that functions as an index for designating the part), and in the waveform display device 2 (program data Dp) of this example, the waveform display screen 20 is displayed on the display unit 13. At the time point, as shown in the figure, the cursor display 21 is displayed at the center of the waveform display screen 20 in the time axis direction.

In the waveform display device 2 (program data Dp) of this example, the signal waveforms W1 and W2 correspond to "one of the signal waveform and the designated display", and the cursor display 21 is "the other of the signal waveform and the designated display". By moving the cursor display 21 with respect to the signal waveforms W1 and W2, an arbitrary point in the signal waveforms W1 and W2 in the time axis direction is designated by the cursor display 21.

In this case, for example, when it is desired to specify the measurement time (elapsed time) of the "singular point" by setting the time point at which the two signal waveforms W1 and W2 cross each other at zero as the "singular point", it is necessary to move the cursor display 21 to the intersection position Px. There is. However, as in the example of the waveform display screen 20 shown in the figure, when the signal waveforms W1 and W2 whose signal levels fluctuate greatly in a short cycle are displayed on the waveform display screen 20, they are set at that time. Depending on the display magnification, the lines of the signal waveforms W1 and W2 are densely packed in the screen, and it becomes difficult to specify the "singular point (intersection position Px in this example)" to which the cursor display 21 should be aligned.

Therefore, in the waveform display device 2 (program data Dp) of this example, for example, when the cursor display 21 is moved to specify an arbitrary point in the time axis direction of the signal waveforms W1 and W2 by the cursor display 21, the cursor display 21 is displayed. It is configured so that the "moving operation" of moving and the "changing operation" of arbitrarily changing the display magnification of the signal waveforms W1 and W2 in the time axis direction can be performed at the same time. This makes it possible to move the cursor display 21 toward the intersection position Px while reliably and easily visually recognizing the intersection position Px.

Specifically, as shown in FIG. 2, in a state where the signal waveforms W1 and W2 and the cursor display 21 are displayed in the waveform display screen 20, any one point on the cursor display 21 by the operation unit 12 (touch panel). Perform a drag operation starting from.

In this case, in the waveform display device 2 (program data Dp) of this example, for example, as shown in FIG. 3, the drag operation in the direction of the arrow C from the position P0 on the cursor display 21 to the position P1 is performed. When this is performed, the processing unit 14 performs an operation component A01 (“first direction” along the time axis direction (directions of arrows AL and AR) as the “first direction” in the drag operation in the direction of arrow C. The direction and size of "an operation component") are specified, and the cursor display 21 is moved in the time axis direction with respect to the signal waveforms W1 and W2 according to the specified direction and size.

Specifically, when the operating component A01 is a component in the direction of the arrow AL, the cursor display 21 is moved in the direction of the arrow AL with respect to the signal waveforms W1 and W2, and the operating component A01 is a component in the direction of the arrow AR. Occasionally, the cursor display 21 is moved in the direction of the arrow AR with respect to the signal waveforms W1 and W2. When the size of the operation component A01 is small, the cursor display 21 is moved small with respect to the signal waveforms W1 and W2, and when the size of the operation component A01 is large, the cursor display 21 is moved with respect to the signal waveforms W1 and W2. Move a lot. In the example of the drag operation in the direction of the arrow C shown in the figure, since the operation component A01 is the operation component in the direction of the arrow AR, the processing unit 14 signals only the amount of movement according to the size of the operation component A01. The cursor display 21 is moved in the direction of the arrow AR with respect to the waveforms W1 and W2.

Further, in parallel with the movement of the cursor display 21, the processing unit 14 displays one point designated by the cursor display 21 in the signal waveform W1 and one point designated by the cursor display 21 in the signal waveform W2 on the waveform display screen 20. The operating component B01 (“second direction”) along the signal level axial direction (directions of arrows BU and BD) as the “second direction” in the drag operation in the direction of arrow C while maintaining the state displayed in each. The direction and size of "2 operating components") are specified, and the display magnification of the signal waveforms W1 and W2 in the time axis direction is changed according to the specified direction and size.

Specifically, when the operation component B01 is a component in the direction of the arrow BU, the signal waveforms W1 and W2 are enlarged (changed to a large display magnification) along the time axis direction, and the operation component B01 is in the direction of the arrow BD. When it is a component, the signal waveforms W1 and W2 are reduced (changed to a smaller display magnification) along the time axis direction. When the size of the operation component B01 is small, the amount of change in the display magnification of the signal waveforms W1 and W2 is small, and when the size of the operation component B01 is large, the amount of change in the display magnification of the signal waveforms W1 and W2 is large. do. In the example of the drag operation in the direction of the arrow C shown in the figure, since the operation component B01 is the operation component in the direction of the arrow BU corresponding to the expansion direction, the processing unit 14 responds to the size of the operation component B01. The signal waveforms W1 and W2 are expanded along the time axis direction by the amount of change.

In this case, in the waveform display device 2 (program data Dp) of this example, the size of the "first operating component" and the size of the "second operating component" when the drag operation as described above is performed. When the "component ratio" of Sato is less than the "predetermined threshold value", the display magnification of the signal waveforms W1 and W2 is not changed, and when the "component ratio" is greater than or equal to the "threshold value", " A configuration and processing method for changing the display magnification of the signal waveforms W1 and W2 according to the direction and magnitude of the "second operating component" are adopted. Specifically, as an example, when the above "component ratio" is less than "1/3", that is, the size of the "second operating component" is the size of the "first operating component". When it is less than 1/3, the display magnification of the signal waveforms W1 and W2 is maintained, and when the "component ratio" is "1/3" or more, that is, the size of the "second operating component" is "second." When the size of "1 operating component" is 1/3 or more, a configuration and a processing method for changing the display magnification of the signal waveforms W1 and W2 are adopted.

Further, in the waveform display device 2 (program data Dp) of this example, when the above-mentioned drag operation is performed, the “first operation” is performed at a predetermined period (for example, a period of 50 ms intervals). A configuration and processing method in which a "component" and a "second operating component" are specified, respectively, and the cursor display 21 is moved and the display magnifications of the signal waveforms W1 and W2 are changed according to the orientation and size of both specified operating components. Has been adopted.

Therefore, for example, when it is difficult to specify the intersection position Px to which the cursor display 21 should be aligned in a state where the lines of the signal waveforms W1 and W2 are dense as in the example of the waveform display screen 20 shown in FIG. 2, the cursor display is first performed. The drag operation in the direction of the arrow BU starting from any one point on 21 is started.

At this time, the processing unit 14 shifts the signal waveforms W1 and W2 in the time axis direction as shown in FIG. 4 according to the size and direction of the "second operating component" in the drag operation in the direction of the arrow BU. Expand along. As a result, the intersection position Px in the signal waveforms W1 and W2 can be easily specified as compared with the state of the waveform display screen 20 shown in FIG. Since the "first operation component" does not exist in the drag operation in the direction of the arrow BU, the processing unit 14 holds the display position without moving the cursor display 21.

Further, when the drag operation in the direction of the arrow BU is continued, the processing unit 14 causes the signal waveform W1 as shown in FIG. 5 according to the direction and size of the "second operation component" in the drag operation. , W2 is further expanded along the time axis direction. As a result, the intersection position Px in the signal waveforms W1 and W2 can be specified more easily than in the state of the waveform display screen 20 shown in FIG.

Further, as shown in the figure, when the intersection position Px on the signal waveforms W1 and W2 is enlarged to a display magnification that can be reliably and easily specified, the cursor is displayed toward the specified intersection position Px. Move 21. Specifically, in the example shown in the figure, since the cursor display 21 is located on the right side with respect to the intersection position Px, the tap panel (operation unit 12) follows the drag operation in the direction of the arrow BU described above. Drag in the direction of the arrow AL without releasing your finger from.

At this time, the processing unit 14 displays the cursor display 21 in the time axis direction with respect to the signal waveforms W1 and W2 according to the size and direction of the "first operation component" in the drag operation in the direction of the arrow AL. Move along the direction of the arrow AL. In the waveform display device 2 (program data Dp) of this example, as described above, the "component ratio" between the size of the "first operating component" and the size of the "second operating component" is "1 /". Since the display magnification of the signal waveforms W1 and W2 is not changed when the value is less than "3", the finger moves slightly diagonally when the drag operation is performed in the direction of the arrow AL, and a slight "second operation component" is generated. Even if the signal waveforms W1 and W2 are displayed at the same display magnification without being changed, the display magnification is maintained.

As a result, as shown in FIG. 6, the cursor display 21 can be superimposed on the intersection position Px, and the intersection positions Px of the signal waveforms W1 and W2 are designated by the cursor display 21. Therefore, the user who determines that the designation of the intersection position Px by the cursor display 21 is completed ends the drag operation and releases the finger from the touch panel. At this time, as shown in FIG. 7, the processing unit 14 maintains the state in which the intersection position Px is specified by the cursor display 21, and displays the signal waveforms W1 and W2 at the display magnification before the start of the above drag operation. Display it. As described above, the work of designating the intersection position Px in the signal waveforms W1 and W2 by the cursor display 21 is completed, and the measured value and the measurement time (elapsed time) of the intersection position Px in the signal waveforms W1 and W2 are together with the signal waveforms W1 and W2. It is displayed on the waveform display screen 20 (not shown).

In the waveform display device 2 (program data Dp) of this example, the touch panel is displayed regardless of the display magnification of the signal waveforms W1 and W2 while the above drag operation is being performed. A configuration and a processing method in which the cursor display 21 is displayed at the position of the touching finger are adopted. That is, in the waveform display device 2 (program data Dp) of this example, the cursor display 21 in the time axis direction in the waveform display screen 20 per the operation amount of the pointing device in the time axis direction from the start to the end of the drag operation. The amount of movement of the signal waveforms W1 and W2 is kept constant regardless of the display magnification.

Further, in the waveform display device 2 (program data Dp) of this example, even when a drag operation is performed by a pointing device composed of an external device instead of the touch panel, a signal is displayed while the drag operation is performed. Regardless of the display magnification of the waveforms W1 and W2, the cursor display 21 is displayed at the display position of the pointer (not shown) displayed on the waveform display screen 20 by operating the pointing device. The processing method is adopted. That is, even when the pointing device of the external device is used, the cursor display 21 moves in the time axis direction in the waveform display screen 20 per the operating amount of the pointing device in the time axis direction from the start to the end of the drag operation. The amount is maintained constant regardless of the display magnification of the signal waveforms W1 and W2.

In this case, unlike the configuration and processing method of the waveform display device 2 (program data Dp) of this example, the time axis direction in the waveform display screen 20 per the operation amount of the pointing device in the time axis direction during the drag operation. When a configuration and processing method in which the amount of movement of the cursor display 21 to the cursor changes in conjunction with the display magnifications of the signal waveforms W1 and W2 are adopted, the direction and size of the "second operation component" in the drag operation are selected. When the signal waveforms W1 and W2 are enlarged and displayed along the time axis direction accordingly, the amount of movement of the cursor display 21 in the time axis direction in the waveform display screen 20 per the operation amount of the pointing device increases. Become.

In such a configuration and processing method, the signal waveforms W1 and W2 are enlarged and displayed, so that the intersection position Px can be easily specified, but in a state where the intersection position Px can be easily specified (enlarged display state). The cursor display 21 moves significantly in the time axis direction by slightly dragging along the time axis direction. Therefore, it may be difficult to align the cursor display 21 with the intersection position Px.

On the other hand, from the start to the end of the drag operation, in the waveform display device 2 (program data Dp) of this example, even in a state where the intersection position Px can be easily specified (enlarged display state), the time axis direction Pointing to the waveform display per operation amount of the device The movement amount of the cursor display 21 in the time axis direction in the screen 20 is maintained constant at the same movement amount as when the drag operation is started, so that the movement amount is small in the time axis direction. When dragged to, the cursor display 21 moves slightly in the time axis direction, and when dragged significantly in the time axis direction, the cursor display 21 moves greatly in the time axis direction. This makes it possible to easily align the cursor display 21 with the intersection position Px.

When a drag operation is performed starting from an arbitrary point on the cursor display 21, the time axes of the signal waveforms W1 and W2 are adjusted according to the direction and magnitude of the "second operation component" in the drag operation. An example of changing the display magnification in the direction has been described, but when the drag operation in the direction of the arrow BU similar to the above example is performed, the drag operation is performed as in the example of the waveform display screen 20 shown in FIG. It is also possible to adopt a configuration and processing method for changing the display magnification of the signal waveforms W1 and W2 in both the time axis direction and the signal level axis direction according to the direction and magnitude of the “second operating component”.

Regarding the change of the display magnification of the signal waveforms W1, W2, etc. at the time of dragging operation from any one point on the cursor display 21, "change only the display magnification in the time axis direction (first direction)" and " Either one of "changing the display magnification in both the time axis direction (first direction) and the signal level axis direction (second direction)" can be selected in advance.

On the other hand, unlike the above operation example in which the intersection position Px of the signal waveforms W1 and W2 is specified by the cursor display 21, the rising position in the signal waveform W3 shown in FIG. 9 is set as a “singular point” and the “singular point” is set. When it is desired to specify the measurement time (elapsed time) of "", it is necessary to align the cursor display 21 with the rising position Pu shown in FIGS. 10 to 12. However, on the waveform display screen 20 shown in FIG. 9, the display magnification of the signal waveform W3 is too large, and the rising position Pu is hidden. Therefore, when the "singular point" such as the rising position Pu is hidden due to the large display magnification of the signal waveform W3 or the like, first, in the direction of the arrow BD starting from any one point on the cursor display 21. Start the drag operation of.

At this time, the processing unit 14 rotates the signal waveform W3 along the time axis direction as shown in FIG. 10 according to the direction and size of the “second operating component” in the drag operation in the direction of the arrow BD. To shrink. As a result, the rising position Pu in the signal waveform W3 is displayed in the waveform display screen 20, and the rising position Pu can be visually recognized. Since the "first operation component" does not exist in the drag operation in the direction of the arrow BD, the processing unit 14 holds the display position without moving the cursor display 21.

Further, when the display magnification is reduced to a display magnification at which the rising position Pu on the signal waveform W3 can be specified, the cursor display 21 is moved toward the specified rising position Pu. Specifically, in the example shown in the figure, since the cursor display 21 is located on the right side with respect to the rising position Pu, the tap panel (operation unit 12) follows the drag operation in the direction of the arrow BD described above. Drag in the direction of the arrow AL without releasing your finger from. At this time, the processing unit 14 displays the cursor display 21 on the signal waveform W3 along the time axis direction according to the direction and magnitude of the "first operating component" in the drag operation in the direction of the arrow AL. Move in the direction of the arrow AL.

As a result, as shown in FIG. 11, the cursor display 21 can be superimposed on the rising position Pu, and the rising position Pu of the signal waveform W3 is designated by the cursor display 21. Therefore, the user who determines that the designation of the rising position Pu by the cursor display 21 is completed ends the drag operation and releases the finger from the touch panel. At this time, as shown in FIG. 12, the processing unit 14 displays the signal waveform W3 at the display magnification before the start of the drag operation while maintaining the state in which the rising position Pu is specified by the cursor display 21. .. As described above, the work of designating the rising position Pu in the signal waveform W3 by the cursor display 21 is completed, and the measured value and the measurement time (elapsed time) of the rising position Pu in the signal waveform W3 are displayed on the waveform display screen 20 together with the signal waveform W3. (Not shown).

In this case, unlike the configuration and processing method of the waveform display device 2 (program data Dp) of this example, the time axis direction in the waveform display screen 20 per the operation amount of the pointing device in the time axis direction during the drag operation. When a configuration and processing method in which the amount of movement of the cursor display 21 to the cursor changes in conjunction with the display magnification of the signal waveform W3 is adopted, the movement amount of the cursor display 21 to is changed according to the direction and size of the "second operation component" in the drag operation. When the signal waveform W3 is reduced and displayed along the time axis direction, the amount of movement of the cursor display 21 in the time axis direction in the waveform display screen 20 per the operating amount of the pointing device is reduced.

In such a configuration and processing method, the signal waveform W3 is reduced and displayed so that the rising position Pu can be specified, but a very long drag operation is performed to move the cursor display 21 to the specified rising position Pu. And it becomes necessary to perform multiple drag operations. Therefore, it may take a long time to align the cursor display 21 with the rising position Pu.

On the other hand, in the waveform display device 2 (program data Dp) of this example, as described above, from the start to the end of the drag operation, in the waveform display device 2 (program data Dp) of this example, the signal waveform W3 and the like The movement amount of the cursor display 21 in the time axis direction in the waveform display screen 20 per the operation amount of the pointing device in the time axis direction is constant at the same movement amount as when the drag operation is started, regardless of the display magnification of. Be maintained. Therefore, the cursor display 21 can be easily moved to the rising position Pu.

On the other hand, in the waveform display device 2 (program data Dp) of this example, the figure shows instead of the cursor display 21 which functions as an index for designating an arbitrary point in the time axis direction in the signal waveforms W1 and W2 and the signal waveform W3. As shown in 13, for example, an index for designating an arbitrary portion (“arbitrary measured value portion” which is another example of “arbitrary parameter value”) in the signal level axial direction in the signal waveforms W1 and W2. The cursor display 21a (signal level axis cursor display) that functions as a signal can be displayed on the waveform display screen 20 together with the signal waveforms W1 and W2.

In this case, in the waveform display screen 20 shown in FIG. 13 and FIGS. 15 and 16 which will be referred to later, the “signal level” which is another example of the “first parameter” is changed to another example of the “first direction”. A "second direction" that corresponds to the direction of a certain arrow BU or BD and intersects (orthogonally) the "measurement time (elapsed time)" which is an example of the "second parameter" with the "first direction". A screen configuration capable of displaying signal waveforms W1, W2, etc. based on the measured value data Dw is adopted in correspondence with the directions of the arrows AL and AR, which are other examples. In FIG. 13, immediately after the cursor display 21a is displayed on the waveform display screen 20, the central portion (signal level value is “0”) of the signal level axis direction (directions of arrows BU and BD) on the waveform display screen 20. The state in which the cursor display 21a is displayed on the part) is illustrated.

In this case, for example, when it is desired to specify the maximum value value and the measurement time (elapsed time) in the signal waveform W1 shown in the figure, it is necessary to align the cursor display 21a with the peak position Pp as the “singular point”. However, as in the example of the waveform display screen 20 shown in the figure, when the signal waveforms W1 and W2 whose signal levels fluctuate greatly in a short cycle are displayed on the waveform display screen 20, they are set at that time. Depending on the display magnification, the lines of the signal waveforms W1 and W2 are densely packed in the screen, and it becomes difficult to specify the "singular point (peak position Pp in this example)" to which the cursor display 21a should be aligned.

Therefore, in the same manner as in the drag operation for aligning the cursor display 21 with the intersection position Px described above, the operation unit 12 (touch panel) performs a drag operation starting from an arbitrary point on the cursor display 21a.

In this case, in the waveform display device 2 (program data Dp) of this example, for example, as shown in FIG. 14, the drag operation in the direction of the arrow C from the position P0 on the cursor display 21a to the position P2 is performed. When this is performed, the processing unit 14 performs an operation component B02 (“first direction” along the signal level axial direction (directions of arrows BU and BD) as the “first direction” in the drag operation in the direction of arrow C. The direction and magnitude of "an operation component of") are specified, and the cursor display 21a is moved in the signal level axial direction with respect to the signal waveforms W1 and W2 according to the specified direction and magnitude.

Specifically, when the operation component B02 is a component in the direction of the arrow BU, the cursor display 21a is moved in the direction of the arrow BU with respect to the signal waveforms W1 and W2, and when the operation component B02 is a component in the direction of the arrow BD, the cursor display 21a is moved in the direction of the arrow BU. The cursor display 21a is moved in the direction of the arrow BD with respect to the signal waveforms W1 and W2. When the size of the operation component B02 is small, the cursor display 21a is moved small with respect to the signal waveforms W1 and W2, and when the size of the operation component B02 is large, the cursor display 21a is moved with respect to the signal waveforms W1 and W2. Move a lot. In the example of the drag operation in the direction of the arrow C shown in the figure, since the operation component B02 is the operation component in the direction of the arrow BU, the processing unit 14 signals only the movement amount according to the size of the operation component B02. The cursor display 21a is moved in the direction of the arrow BU with respect to the waveforms W1 and W2.

Further, in parallel with the movement of the cursor display 21a, the processing unit 14 displays one point designated by the cursor display 21a in the signal waveform W1 and one point designated by the cursor display 21a in the signal waveform W2 on the waveform display screen 20. Operation component A02 (“second direction”) along the time axis direction (directions of arrows AL and AR) as the “second direction” in the drag operation in the direction of arrow C while maintaining the state displayed in each. Specify the direction and size of "an operation component of"), and change the display magnification of the signal waveforms W1 and W2 in the signal level axis direction and the display magnification in the time axis direction according to the specified direction and size. ..

Specifically, when the operation component A02 is a component in the direction of the arrow AR, the signal waveforms W1 and W2 are enlarged (changed to a large display magnification) along the signal level axial direction and the time axis direction, and the operation component A02 is changed. When the component is in the direction of the arrow AL, the signal waveforms W1 and W2 are reduced (changed to a smaller display magnification) along the signal level axial direction and the time axis direction. When the size of the operation component A02 is small, the amount of change in the display magnification of the signal waveforms W1 and W2 is small, and when the size of the operation component A02 is large, the amount of change in the display magnification of the signal waveforms W1 and W2 is large. do. In the example of the drag operation in the direction of the arrow C shown in the figure, since the operation component A02 is the operation component in the direction of the arrow AR corresponding to the expansion direction, the processing unit 14 responds to the size of the operation component A02. The signal waveforms W1 and W2 are expanded along both the signal level axial direction and the time axis direction by the amount of change.

In this case, in the waveform display device 2 (program data Dp) of this example, even when the above drag operation is performed, the size of the "first operation component" and the size of the "second operation component" When the "component ratio" with the magnitude is less than the "predetermined threshold value" and the "component ratio" is greater than or equal to the "threshold value" without changing the display magnification of the signal waveforms W1 and W2. A configuration and processing method for changing the display magnification of the signal waveforms W1 and W2 according to the direction and magnitude of the "second operating component" are adopted. Specifically, as an example, when the above "component ratio" is less than "1/3", that is, the size of the "second operating component" is the size of the "first operating component". When it is less than 1/3, the display magnification of the signal waveforms W1 and W2 is maintained, and when the "component ratio" is "1/3" or more, that is, the size of the "second operating component" is "second." When the size of "1 operating component" is 1/3 or more, a configuration and a processing method for changing the display magnification of the signal waveforms W1 and W2 are adopted.

Therefore, for example, when it is difficult to specify the peak position Pp to which the cursor display 21a should be aligned in a state where the lines of the signal waveforms W1 and W2 are dense as in the example of the waveform display screen 20 shown in FIG. 13, the cursor display is first performed. The drag operation in the direction of the arrow C starting from any one point on 21a is started.

At this time, the processing unit 14 displays the cursor display 21a on the signal waveforms W1 and W2 in the signal level axial direction according to the direction and magnitude of the "first operating component" in the drag operation in the direction of the arrow C. The signal waveforms W1 and W2 are changed in the signal level axial direction and the time axis according to the direction and magnitude of the "second operating component" in the drag operation in the direction of the arrow C while moving in the direction of the arrow BU along the line. Magnifies along both directions. As a result, as shown in FIG. 15, the peak position Pp in the signal waveforms W1 and W2 can be more easily specified than in the state of the waveform display screen 20 shown in FIG. 13, and the cursor display 21a is displayed. It is in a state of moving to the vicinity of the peak position Pp.

Next, the drag operation is continued toward the peak position Pp of the enlarged signal waveform W1. As a result, the cursor display 21a overlaps the peak position Pp, and the peak position Pp of the signal waveform W1 is designated by the cursor display 21a. Therefore, the user who determines that the designation of the peak position Pp by the cursor display 21a is completed ends the drag operation and releases the finger from the touch panel. At this time, as shown in FIG. 16, the processing unit 14 maintains the state in which the peak position Pp is specified by the cursor display 21a, and displays the signal waveforms W1 and W2 at the display magnification before the start of the above drag operation. Display it. As described above, the work of designating the peak position Pp in the signal waveforms W1 and W2 by the cursor display 21a is completed, and the measured value and the measurement time (elapsed time) of the peak position Pp in the signal waveforms W1 and W2 are together with the signal waveforms W1 and W2. It is displayed on the waveform display screen 20.

When a drag operation is performed starting from an arbitrary point on the cursor display 21a, the signal levels of the signal waveforms W1 and W2 are adjusted according to the direction and magnitude of the "second operation component" in the drag operation. An example of changing the display magnification in both the axial direction and the time axis direction has been described. However, when the drag operation in the direction of the arrow C similar to the above example is performed, the “second operation component” in the drag operation is performed. It is also possible to set to change the display magnification of the signal waveforms W1 and W2 in the signal level axial direction according to the direction and magnitude of.

As described above, in the waveform display device 2, the pointing device (in this example, in this example,) is in a state where the processing unit 14 displays the signal waveforms W1, W2 ... And the cursor displays 21 and 21a in the waveform display screen 20. When a drag operation starting from an arbitrary point on the cursor displays 21 and 21a is performed by the touch panel of the operation unit 12), the "first operation component" along the "first direction" in the drag operation Depending on the direction and size, one (in this example, the signal waveforms W1, W2 ...) And the other (in this example, the cursor displays 21 and 21a) are moved along the "first direction", and the other is moved. "Second direction" in the drag operation while maintaining the state in which the "part of an arbitrary parameter value" specified by the cursor displays 21 and 21a in the signal waveforms W1, W2 ... Is displayed in the waveform display screen 20. The display magnification of the signal waveforms W1, W2 ... Is changed according to the direction and magnitude of the "second operating component" along the above. Further, in this program data Dp, the processing unit 14 of the waveform display device 2 is made to execute the above processing.

Therefore, according to the waveform display device 2 and the program data Dp, when it is difficult to visually recognize the "part (singular point) of an arbitrary parameter value" in the signal waveforms W1, W2 ... Displayed on the waveform display screen 20. Or, when the display magnification of the signal waveforms W1, W2 ... Is too large and the "singular point" is not displayed on the waveform display screen 20, the cursor display 21 for such a "singular point", The movement of 21a and the operation of changing the display magnification of the signal waveforms W1, W2 ... Can be performed simultaneously by one drag operation. Therefore, the cursor displays 21 and 21a can be easily displayed in the "parts (singular points) of arbitrary parameter values" in the signal waveforms W1, W2 ... In a short time.

Further, according to the waveform display device 2 and the program data Dp, from the start to the end of the drag operation to the "first direction" in the waveform display screen 20 per the operation amount of the pointing device in the "first direction". By keeping the movement amount of the cursor displays 21 and 21a constant, the movement amount of the cursor displays 21 and 21a per the operation amount of the pointing device increases as the display magnification of the signal waveforms W1, W2 ... , Signal waveforms W1, W2 ... The signal waveforms W1, W2 ... By operating the pointing device as much as you want to move the cursor display 21 and 21a, the cursor display 21 and 21a can be reliably and easily moved to the "part (singular point) of an arbitrary parameter value" regardless of the display magnification of. Can be made to. As a result, it becomes difficult to fine-tune the position of the cursor displays 21 and 21a while the signal waveforms W1, W2 ... Are enlarged, or the signal waveforms W1, W2 ... Are reduced and displayed. In order to move the cursor displays 21 and 21a over a certain distance, the operation amount (or the number of drag operations) of the pointing device is not increased, and the cursor display is set to "a part (singular point) of an arbitrary parameter value". The cursor displays 21 and 21a can be reliably moved.

Further, according to the waveform display device 2 and the program data Dp, at the end of the drag operation, the signal waveforms W1, W2 ... (Singularity) ”, even if the display magnification of the signal waveforms W1, W2 ... can do.

Further, according to the waveform display device 2 and the program data Dp, the component ratio between the size of the "first operating component" and the size of the "second operating component" is a predetermined threshold value (in this example). , "1/3"), the direction and magnitude of the "second operating component" when the component ratio is greater than or equal to the threshold value without changing the display magnification of the signal waveforms W1, W2 ... By changing the display magnification of the signal waveforms W1, W2 ... Correspondingly, the "first operating component" is slightly reduced during the drag operation for changing only the display magnification of the signal waveforms W1, W2 ... Even if the existing oblique drag operation is performed, the display magnification of the signal waveforms W1, W2 ... Can be changed without moving the cursor displays 21 and 21a.

The configuration of the "waveform display device" and the processing procedure of the "waveform display program" are not limited to the above configuration of the waveform display device 2 and the example of the processing procedure by the waveform display program. For example, in order to set the "singular point" in the signal waveforms W1, W2 ... In the state specified by the cursor displays 21 and 21a, the cursor displays 21 and 21a are moved with respect to the signal waveforms W1, W2 ... Although the processing method has been described as an example, the display position of the cursor displays 21 and 21a as "one of the signal waveform and the designated display" is fixed, and the "signal" is displayed with respect to the cursor displays 21 and 21a. It is also possible to adopt a configuration and processing method for moving the signal waveforms W1 and W2 as "the other of the waveform and the designated display".

Further, from the start to the end of the drag operation, the movement amount of the cursor display 21 and 21a in the "first direction" in the waveform display screen 20 per the operation amount of the pointing device in the "first direction" is kept constant. Although the configuration and processing method to be performed have been described as an example, the movement of the "designated display" to the "first direction" in the "waveform display screen" per the operating amount of the pointing device in the "first direction" has been described. Corresponding the amount to the "display magnification of the signal waveform", the larger the "display magnification", the larger the "movement amount per operation amount", and the smaller the "display magnification", the "movement amount per operation amount". It is also possible to adopt a configuration and a processing method for reducing the amount of.

Further, the configuration and method of displaying the linear (line-shaped) cursor displays 21 and 21a together with the signal waveform W as the "designated display" have been described as an example, but the shape of the "designated display" is limited to this. Instead, it is also possible to adopt a configuration and method in which a point-shaped (round-shaped) display or a display of various symbols and graphic shapes is displayed as a "designated display" (not shown). Further, the configuration and processing method for displaying the signal waveforms W1, W2, ... At the display magnification before the start of the drag operation at the end of the drag operation have been described as an example, but the display magnification at that time at the end of the drag operation has been described. It is also possible to adopt a configuration and a processing method for maintaining the above.

In addition, an example in which the measuring device 1 for generating the measured value data Dw and the waveform display device 2 for displaying the signal waveforms W1, W2 ... Based on the measured value data Dw are separately configured has been described. It is also possible to configure the generation of "waveform data" and the display of "signal waveforms" based on "waveform data" to be feasible with a single device. Specifically, the measuring device 200 shown in FIG. 17 is another example of the “waveform display device” and includes a measuring unit 201, an operating unit 202, a display unit 203, a processing unit 204, and a storage unit 205 for measurement. It is configured so that the measurement processing for the target and the display processing of the signal waveform based on the measurement result can be executed independently. The same elements as those of the measurement system 100 described above with respect to the measurement device 200 are designated by the same reference numerals, and duplicate description will be omitted.

In this case, the measuring unit 201 is configured to be able to execute a measurement process that measures a predetermined measure to be measured and generates measured value data Dw, similarly to the measuring device 1 in the measuring system 100 described above. Further, the operation unit 202 is provided with various operation switches for operating the measurement device 200, and similarly to the operation unit 12 of the waveform display device 2 in the measurement system 100 described above, "movement operation and change operation can be performed. It is configured to include a touch panel or the like, which is an example of a "possible pointing device". Further, the display unit 203 displays various display screens such as the waveform display screen 20 under the control of the processing unit 204 in the same manner as the display unit 13 of the waveform display device 2 in the measurement system 100.

Further, the processing unit 204 is another example of the “processing unit” and controls the measuring device 200 in a comprehensive manner. The processing unit 204 stores the measurement value data Dw transmitted from the measurement unit 201 in the storage unit 205 and displays the waveform display screen 20 in the same manner as the processing unit 14 of the waveform display device 2 in the measurement system 100 described above. The display unit 203 is displayed, and the signal waveform W based on the measured value data Dw and the cursor displays 21 and 21a for designating the portion of an arbitrary parameter value on the signal waveform W are displayed in the waveform display screen 20. Further, the storage unit 205 stores the measured value data Dw and the like transmitted from the measurement unit 201 in the same manner as the storage unit 15 of the waveform display device 2 in the measurement system 100 described above.

In the measuring device 200, each process by the measuring device 1 and each process by the waveform display device 2 in the measuring system 100 are executed in the same procedure as the above-described example. Therefore, according to the measuring device 200, the "site (singular point) of an arbitrary parameter value" in the signal waveforms W1, W2 ... Displayed on the waveform display screen 20 can be visually recognized in the same manner as in the measuring system 100. When it is difficult, or when the display magnification of the signal waveforms W1, W2, etc. is too large and the "singular point" is not displayed on the waveform display screen 20, the cursor for such "singular point" The movement of the displays 21 and 21a and the operation of changing the display magnification of the signal waveforms W1, W2 ... Can be performed simultaneously by one drag operation. Therefore, the cursor displays 21 and 21a can be easily displayed in the "parts (singular points) of arbitrary parameter values" in the signal waveforms W1, W2 ... In a short time.

100 Measurement system 1,200 Measuring device 2 Waveform display device 11 Communication unit 12,202 Operation unit 13,203 Display unit 14,204 Processing unit 15,205 Storage unit 20 Waveform display screen 21,21a Mouse display 201 Measurement unit A01, A02 Operation component B01, B02 Operation component Dp Program data Dw Measurement value data P0 to P2 Position Pp Peak position Pu Rise position Px Crossing position W1 to W3 Signal waveform

Claims (4)

The first parameter in the waveform data corresponds to the first direction on the waveform display screen, and the second parameter in the waveform data corresponds to the second direction intersecting the first direction on the waveform display screen. The signal waveform based on the waveform data is displayed on the waveform display screen, and a designated display for designating a portion of the signal waveform in which the first parameter has an arbitrary parameter value is displayed together with the signal waveform on the waveform display screen. It is a waveform display device equipped with a processing unit for displaying on the screen.
A pointing device capable of operating the movement of the signal waveform and the designated display along the other in the first direction, and changing the display magnification of the signal waveform in at least the first direction. Prepare,
When the processing unit performs a drag operation starting from an arbitrary point on the designated display by the pointing device while the signal waveform and the designated display are displayed in the waveform display screen. In the signal waveform, the other is moved along the first direction with respect to the one according to the direction and size of the first operating component along the first direction in the drag operation. The orientation of the second operating component along the second direction in the drag operation and the orientation of the second operating component along the second direction in the drag operation while maintaining the state in which the portion of the arbitrary parameter value designated by the designated display is displayed in the waveform display screen. A waveform display device that changes the display magnification of the signal waveform according to its magnitude and displays the signal waveform at the display magnification before the start of the drag operation at the end of the drag operation. From the start to the end of the drag operation, the processing unit keeps the amount of movement of the designated display in the first direction in the waveform display screen per the operation amount of the pointing device in the first direction constant. The waveform display device according to claim 1 to be maintained. The processing unit does not change the display magnification of the signal waveform when the component ratio between the size of the first operating component and the size of the second operating component is below a predetermined threshold value. The waveform display device according to claim 1 or 2 , wherein when the component ratio is equal to or higher than the threshold value, the display magnification of the signal waveform is changed according to the direction and magnitude of the second operating component. The first parameter in the waveform data corresponds to the first direction on the waveform display screen, and the second parameter in the waveform data corresponds to the second direction intersecting the first direction on the waveform display screen. The signal waveform based on the waveform data is displayed on the waveform display screen, and a designated display for designating a portion of the signal waveform in which the first parameter has an arbitrary parameter value is displayed together with the signal waveform on the waveform display screen. This is a waveform display program that causes the processing unit of the waveform display device to execute the processing to be displayed on the waveform display device.
In a state where the signal waveform and the designated display are displayed in the waveform display screen, the operation of moving the signal waveform and the designated display along the first direction with respect to one of the signal waveform and the designated display, and the signal. When a drag operation starting from an arbitrary point on the designated display is performed by a pointing device capable of changing the display magnification in at least the first direction of the waveform, the first method in the drag operation is performed. The other is moved along the first direction with respect to the one according to the direction and size of the first operating component along the direction, and the signal waveform is designated by the designated display. While maintaining the state in which the part of the arbitrary parameter value is displayed in the waveform display screen, the signal waveform of the signal waveform corresponds to the direction and magnitude of the second operation component along the second direction in the drag operation. A waveform display program that changes the display magnification and causes the processing unit to execute a process of displaying the signal waveform at the display magnification before the start of the drag operation at the end of the drag operation.

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