Waveform measurement instrument, control method of waveform measurement instrument, and program

Abstract

To enable easier operation for positioning of a cursor.SOLUTION: A waveform measurement instrument 10 includes a control unit 11 which causes a display unit 15 to display a screen including a first region and a second region, for displaying a graph representing waveforms of signals, receives, from a user, an operation to drag a cursor for designating a position in the graph displayed in the first region, into the second region, deletes the cursor displayed in the first region in accordance with the operation for dragging the cursor into the second region, and displays the cursor in a position in the second region to which the cursor has been dragged. One of the first and second regions is a region for displaying a part of the other region enlarged.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a waveform measuring device, a control method for a waveform measuring device, and a program. [Background technology]

[0002] A waveform measuring instrument is a device that takes in an electrical signal and displays the waveform of the signal. Patent Document 1 describes a technique for facilitating the movement of a cursor on a display screen in a waveform analyzing device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-143038 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional configuration leaves room for improvement in terms of operability when moving the cursor to a desired position.

[0005] Therefore, an object of the present disclosure is to make operations relating to cursor alignment easier. [Means for solving the problem]

[0006] The waveform measurement device according to some embodiments includes: (1) displaying a screen including a first area and a second area on a display unit for displaying a graph showing a waveform of a signal; receiving, from a user, an operation of dragging a cursor for designating a position in the graph displayed in the first area into the second area; in response to a drag operation of the cursor into the second area, deleting the display of the cursor displayed in the first area, and displaying the cursor at a destination of the drag operation in the second area; A control unit is provided, Either the first area or the second area is an area for enlarging and displaying a part of the other area.

[0007] In this manner, in a waveform measuring instrument that displays a first region and a second region, one of which is a region for enlarging and displaying a part of the other region, a drag operation from one region to the other region is accepted, so that the user can position the cursor at a desired position on the graph with an intuitive and simple operation.

[0008] In one embodiment, (2) In the waveform measuring instrument of (1), the second area is an area for enlarging and displaying a part of the first area, In response to a drag operation of the cursor into the second area, the control unit may remove the display of the cursor displayed in the first area, display the cursor at a destination of the drag operation, and further display the cursor at a position in the first area corresponding to the destination of the drag operation within the second area.

[0009] In this way, the waveform measuring instrument further displays the cursor at a position in the first area corresponding to the position of the cursor in the second area in response to a drag operation of the cursor to the second area that displays an enlarged portion of the first area. Therefore, the user can align the cursor to a desired position on the graph by an intuitive and simple operation without performing a complicated operation such as precise alignment.

[0010] In one embodiment, (3) In the case of a waveform measuring instrument according to (1) or (2), The cursor may be used to specify a horizontal or vertical axis direction in the graph.

[0011] Therefore, the user can easily specify the horizontal or vertical axis direction in the graph.

[0012] In one embodiment, A method for controlling a waveform measurement instrument according to some embodiments includes the steps of: (4) A method for controlling a waveform measuring instrument having a control unit, comprising: The control unit: displaying a screen including a first region and a second region on a display unit for displaying a graph showing a waveform of a signal; receiving, from a user, an operation of dragging a cursor for designating a position in the graph displayed in the first area into the second area; in response to a drag operation of the cursor into the second area, deleting the display of the cursor displayed in the first area and displaying the cursor at a destination of the drag operation in the second area; Including, Either the first area or the second area is an area for enlarging and displaying a part of the other area.

[0013] In this manner, in a waveform measuring instrument that displays a first region and a second region, one of which is a region for enlarging and displaying a part of the other region, a drag operation from one region to the other region is accepted, so that the user can position the cursor at a desired position on the graph with an intuitive and simple operation.

[0014] In one embodiment, A program according to some embodiments includes: (5) To the computer: a step of displaying a screen including a first region and a second region on a display unit for displaying a graph showing a waveform of a signal; receiving, from a user, an operation of dragging a cursor for designating a position in the graph displayed in the first area into the second area; a step of deleting the cursor displayed in the first area in response to a drag operation of the cursor into the second area, and displaying the cursor at a destination of the drag operation in the second area; Run the command, Either the first area or the second area is an area for enlarging and displaying a part of the other area.

[0015] A waveform measuring instrument operated by such a program displays a first area and a second area, one of which is an area for enlarging and displaying a part of the other area, and accepts a drag operation from one area to the other area. Therefore, a user can position a cursor at a desired position on a graph with an intuitive and simple operation. Effect of the Invention

[0016] According to an embodiment of the present disclosure, operations relating to cursor positioning can be made easier. [Brief description of the drawings]

[0017] [Figure 1] 10A to 10C are diagrams illustrating the operation of a waveform measuring instrument according to a comparative example. [Diagram 2] 10A to 10C are diagrams illustrating the operation of a waveform measuring instrument according to a comparative example. [Diagram 3] 1 is a block diagram showing an example of the configuration of a waveform measuring device according to an embodiment; [Figure 4] 5 is a flowchart showing an example of the operation of the waveform measuring instrument according to the embodiment. [Diagram 5] FIG. 2 is a diagram showing an example of a screen of a waveform measuring instrument according to an embodiment. [Figure 6] FIG. 2 is a diagram showing an example of a screen of a waveform measuring instrument according to an embodiment. [Figure 7] FIG. 2 is a diagram showing an example of a screen of a waveform measuring instrument according to an embodiment. [Figure 8] FIG. 2 is a diagram showing an example of a screen of a waveform measuring instrument according to an embodiment. [Figure 9] FIG. 2 is a diagram showing an example of a screen of a waveform measuring instrument according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] <Comparative Example> 1 and 2 are diagrams for explaining the operation of a waveform measuring instrument according to a comparative example. FIGS. 1 and 2 show a screen 90 of the waveform measuring instrument according to the comparative example. The screen 90 displays the waveform of a signal acquired by the waveform measuring instrument. The screen 90 has a main area 91, a zoom area 92, and a button 99. The main area 91 is an area that displays a graph 95 showing the waveform of a signal. The zoom area 92 is an area that displays an enlarged version of an area 93 within the main area 91. In FIGS. 1 and 2, the zoom area 92 displays a graph 951 obtained by enlarging the graph 95 within the area 93 in the horizontal direction. In this way, the waveform measuring instrument has the function of enlarging and displaying a portion of the waveform graph 95.

[0019] The waveform measuring instrument according to the comparative example displays a cursor 971 for specifying a position on a graph 95 when performing a waveform analysis. When performing an analysis of a type that requires setting an analysis position and range of the waveform, the user aligns this cursor to the required position. The waveform measuring instrument performs a predetermined analysis based on the magnitude and time of the signal at the analysis position and range indicated by the cursor. To enable such positioning of the cursor, the waveform measuring instrument is provided with a touch panel or a pointing device equivalent thereto. The user can change the position of the cursor 971 by dragging the cursor 971 displayed on the screen 90 with the pointing device.

[0020] Here, an operation will be described in which a user drags cursor 971 to align it with the position of the peak of graph 95 in area 93 using a waveform measurement instrument according to a comparative example. In the drag operation of cursor 971, the waveform measurement instrument according to the comparative example manages only the horizontal (X coordinate) position of cursor 971. The waveform measurement instrument moves cursor 971 to a position corresponding to the X coordinate where a drop operation was performed within the area of ​​cursor 971 (e.g., main area 91) when the drag operation of cursor 971 was started. Therefore, the user cannot directly drag cursor 971 in main area 91 to place it at a desired position in zoom area 92.

[0021] For example, suppose that the user drags cursor 971 from the position of pointer 981 to the position of pointer 982 in order to move cursor 971 to the position of cursor 972 in zoom area 92. In this case, the waveform measurement instrument according to the comparative example manages only the X coordinate of the dragged destination (position of pointer 982), and therefore calculates the destination cursor position based on the lateral position on the paper surface in main area 91. Therefore, cursor 971 moves to the position of cursor 973, not to the position of cursor 972. This makes it impossible for the user to intuitively move the cursor as intended.

[0022] Furthermore, the peak of the graph 95 in the area 93 is steep. Therefore, even if an attempt is made to align the position of the cursor 971 with the peak of the graph 95 within the narrow area 93, the resolution of the screen 90 is low, and it may be difficult to align the cursor 971 with the peak with high accuracy. Furthermore, since the peak of the graph 95 in the area 93 is sharp, precise manual work is required to align the cursor 971 with the peak by a drag operation within the main area 91. Therefore, the user is required to perform complicated work that requires high concentration.

[0023] The waveform measurement instrument according to the comparative example includes a button 99 labeled "Cursor" for adding a cursor within the zoom region 92. The user can add a cursor 974 within the zoom region 92 by placing a pointer 991 on the button 99 and dragging it from the position of the pointer 991 to the position of the pointer 992. However, if the button 99 for adding a cursor is displayed outside the main region 91 and the zoom region 92, the area for displaying the signal graph 951 will be narrowed to ensure a display area for the button 99. As a result, the graph 95 becomes less easy to analyze.

[0024] Thus, the waveform measuring instrument of the comparative example has room for improvement in terms of operability for moving the cursor to a desired position.

[0025] <Embodiment> Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, parts having the same configuration or function are denoted by the same reference numerals. In the description of this embodiment, duplicated descriptions of the same parts may be omitted or simplified as appropriate.

[0026] The waveform measuring instrument 10 according to the present disclosure obtains a measured value of a physical quantity as an electrical signal and displays the waveform of the signal. The waveform measuring instrument 10 is, for example, an oscilloscope, a power measuring instrument, an optical measuring instrument, or a pressure measuring instrument, but is not limited to these instruments. The waveform measuring instrument 10 enables a cursor to be moved between areas displaying the waveform of a signal, thereby enabling an intuitive cursor operation by a user.

[0027] 3 is a block diagram showing an example of the configuration of waveform measurement instrument 10 according to one embodiment. As shown in FIG 3, waveform measurement instrument 10 includes control unit 11, storage unit 12, signal input unit 13, operation input unit 14, and display unit 15.

[0028] The control unit 11 includes one or more processors. In one embodiment, the "processor" is a general-purpose processor or a dedicated processor specialized for a specific process, but is not limited to these. The control unit 11 is communicably connected to each component that constitutes the waveform measurement instrument 10, and controls the operation of the waveform measurement instrument 10 as a whole.

[0029] The storage unit 12 includes any storage module, such as, for example, a hard disk drive (HDD), a solid state drive (SSD), a read-only memory (ROM), and a random access memory (RAM). The storage unit 12 may function, for example, as a main storage device, an auxiliary storage device, or a cache memory. The storage unit 12 stores any information used in the operation of the waveform measuring instrument 10. For example, the storage unit 12 may store a system program, an application program, measurement data relating to various measurement values ​​input by the signal input unit 13, and the like. The storage unit 12 is not limited to being built into the waveform measuring instrument 10, and may be an external database or an external storage module.

[0030] The signal input unit 13 inputs an electrical signal related to a measured value of a physical quantity from a measurement module that measures the physical quantity. Such physical quantities may include, but are not limited to, voltage, current, power, light, pressure, temperature, humidity, flow rate, strain, acceleration, or pH. The signal input unit 13 is communicatively connected to the measurement module that measures such physical quantities via a wired or wireless communication means.

[0031] The operation input unit 14 includes one or more input interfaces that receive an input operation from a user and acquire input information based on the user's operation. For example, the operation input unit 14 is at least one of a touch screen integrally provided with the display unit 15 and a pointing device, but is not limited to these.

[0032] The display unit 15 is a display that outputs information to the user as an image. The display unit 15 may be, for example, a liquid crystal panel display or an organic EL (Electro Luminescence) display. At least one of the operation input unit 14 and the display unit 15 may be configured integrally with the waveform measurement instrument 10, or may be provided separately.

[0033] The functions of the waveform measuring instrument 10 can be realized by executing a computer program (program) according to this embodiment on a processor included in the control unit 11. That is, the functions of the waveform measuring instrument 10 can be realized by software. The computer program causes a computer to execute the processing of steps included in the operation of the waveform measuring instrument 10, thereby causing the computer to realize the functions corresponding to the processing of each step. That is, the computer program is a program for causing a computer to function as the waveform measuring instrument 10 according to this embodiment. The computer program may be recorded on a computer-readable recording medium. Programs include information used for processing by an electronic computer and equivalent to a program. For example, data that is not a direct command to a computer but has the property of defining computer processing falls under "something equivalent to a program."

[0034] Some or all of the functions of waveform measuring instrument 10 may be realized by a dedicated circuit included in control unit 11. That is, some or all of the functions of waveform measuring instrument 10 may be realized by hardware. Furthermore, waveform measuring instrument 10 may be realized by a single device, or may be realized by the cooperation of multiple devices.

[0035] Next, the operation of waveform measuring instrument 10 will be described with reference to Figs. 4 to 9. Fig. 4 is a flowchart showing an example of the operation of waveform measuring instrument 10 according to an embodiment. Figs. 5 to 9 are diagrams showing an example of a screen 50 of waveform measuring instrument 10 according to an embodiment. The operation of waveform measuring instrument 10 described with reference to Figs. 4 to 9 may correspond to one method of controlling waveform measuring instrument 10. The operation of each step in Fig. 4 may be executed based on the control by control unit 11 of waveform measuring instrument 10.

[0036] In step S1, the control unit 11 acquires a signal related to a measured value of a physical quantity. Specifically, the control unit 11 may acquire a signal from a measurement module via the signal input unit 13, or may acquire a signal by reading the memory unit 12.

[0037] In step S2, the control unit 11 causes the display unit 15 to display a screen 50 including a first area and a second area. The first area and the second area are areas for displaying a graph showing a signal waveform. Figure 5 shows an example of such a screen 50.

[0038] In FIG. 5, the screen 50 displays the waveform of the signal acquired by the waveform measuring instrument 10. The screen 50 has a main area 51 and a zoom area 52. The main area 51 is an area for displaying a graph 55 showing the waveform of the signal acquired in step S1. In the main area 51, for example, the horizontal axis may indicate time and the vertical axis may indicate a measured value of a physical quantity. That is, the graph 55 may indicate a change in the physical quantity over time. However, the display content of the main area 51 is not limited to this. The zoom area 52 is an area for enlarging and displaying a part of an area 53 in the main area 51. In FIG. 5, the zoom area 52 displays a graph 551 obtained by enlarging the graph 55 in the area 53 in the horizontal axis direction. In this way, the waveform measuring instrument 10 has a function for enlarging and displaying a part of the graph 55 of the waveform. Below, an example will be described in which the first area corresponds to the main area 51 and the second area corresponds to the zoom area 52, but the correspondence between the areas is not limited to this.

[0039] When performing a waveform analysis, the control unit 11 displays a cursor 57 for designating a position on the graph 55. When performing a type of analysis that requires setting an analysis position and range of the waveform, the user aligns the cursor 57 to the required position. Specifically, the user operates the operation input unit 14 to perform a drag operation on the cursor 57, thereby aligning the position of the cursor 57. The waveform measurement instrument 10 performs a predetermined analysis based on the magnitude and time of the signal at the analysis position and range indicated by the cursor 57. The control unit 11 accepts the user's drag operation on the cursor 57. Below, an example will be described in which the drag operation of the cursor 57 is performed by operating a pointing device as the operation input unit 14, but the drag operation may be performed by other means such as a touch panel.

[0040] Returning to the description of FIG. 4, in step S3, the control unit 11 judges whether or not the user has performed a drag operation on the cursor 57 in the first area (for example, the main area 51). The drag operation consists of a selection operation for selecting the cursor 57, a displacement operation for displacing the cursor 57 while keeping it selected, and a release operation (drop operation) for deselecting the cursor. The control unit 11 judges that a drag operation on the cursor 57 has been performed when a selection operation is performed at the coordinates of the cursor 57 displayed in the main area 51 by an operation on the operation input unit 14, and a drop operation is performed after the displacement operation. If a drag operation has been performed (YES in step S3), the control unit 11 proceeds to step S4, and if not (NO in step S3), the control unit 11 continues the process of accepting the drag operation.

[0041] In step S4, control unit 11 determines whether the destination of the drag operation is within the first area (for example, main area 51). Specifically, control unit 11 may determine that the destination of the drag operation is within the first area when the coordinates of the drop operation are included in the area occupied by the first area. If the destination of the drag operation is within the first area (YES in step S4), control unit 11 proceeds to step S9, and if not (NO in step S4), control unit 11 proceeds to step S5.

[0042] In step S5, the control unit 11 determines whether the destination of the drag operation is within the second region (for example, the zoom region 52). Specifically, the control unit 11 may determine that the destination of the drag operation is within the second region when the coordinates where the drop operation is performed are included in the region occupied by the second region. If the destination of the drag operation is within the second region (YES in step S5), the control unit 11 proceeds to step S7, and if not (NO in step S5), the control unit 11 proceeds to step S6.

[0043] In step S6, control unit 11 deletes cursor 57 that has been dragged. That is, when cursor 57 is dragged outside screen 50, control unit 11 deletes cursor 57. Note that control unit 11 may not do anything in particular when cursor 57 is dragged outside screen 50. When control unit 11 finishes the process of step S6, it ends the process of the flowchart.

[0044] In step S7, the control unit 11 deletes the cursor 57 in the first area (for example, the main area 51) and displays the cursor 57 at a destination in the second area (for example, the zoom area 52). FIG. 6 shows an example of an operation of dragging the cursor 57 from the main area 51 to the zoom area 52. In FIG. 6, the cursor 571 is a cursor before the drag operation. In the example of FIG. 6, the cursor 571 is dragged from the position of the pointer 581 to the position of the pointer 583. In response to such an operation, the control unit 11 deletes the cursor 571 and displays the cursor 573. That is, the control unit 11 deletes the display of the cursor 571 at the coordinates where the drag operation started and displays the cursor 573 at the coordinates where the drop operation was performed. Note that the control unit 11 may display the cursor 57 as an animation in accordance with the position of the pointer 581 during the drag operation of the cursor 57.

[0045] In step S8, the control unit 11 displays the cursor 574 at a position in the first region (e.g., the main region 51) corresponding to the position of the cursor 573 in the second region (e.g., the zoom region 52). As described above, in the example of FIG. 6, the zoom region 52 displays a part of the region 53 in the main region 51 enlarged in the horizontal axis direction. The user can move the cursor 573 to a desired position (e.g., the position of the peak of the graph 551) while referring to the enlarged graph 551 in the zoom region 52. Therefore, the user can set the cursor 573 to a desired position by an intuitive and easy operation. When the control unit 11 finishes the process of step S8, it ends the process of the flowchart.

[0046] In step S9, the control unit 11 moves the cursor 57 to the destination of the drag operation in the first area (for example, the main area 51). FIG. 7 shows an example of an operation of dragging the cursor 57 in the main area 51. In FIG. 7, the cursor 571 is a cursor before the drag operation. In the example of FIG. 7, the cursor 571 is dragged from the position of the pointer 581 to the position of the pointer 582. In response to such an operation, the control unit 11 deletes the cursor 571 and displays the cursor 572. That is, the control unit 11 deletes the display of the cursor 571 at the coordinates where the drag operation started and displays the cursor 572 at the coordinates where the drop operation was performed. Note that the control unit 11 may display the cursor 57 as an animation according to the position of the pointer 581 during the drag operation of the cursor 57. When the control unit 11 finishes the process of step S9, it ends the process of the flowchart.

[0047] As described above, waveform measurement instrument 10 displays a cursor in the second area in response to a drag operation of the cursor displayed in the first area in the second area. Therefore, when the user wants to move cursor 57 in main area 51 to an arbitrary location in zoom area 52, the user can easily move cursor 57 by simply dragging cursor 57 in main area 51 to zoom area 52.

[0048] 6 and 7, an example has been described in which cursor 57 is moved from main region 51 to zoom region 52, but similarly, waveform measurement instrument 10 may accept movement of cursor 57 from zoom region 52 to main region 51. For example, in FIG. 7, when a drag operation is performed from the position of pointer 583 to the position of pointer 581, waveform measurement instrument 10 may move cursor 573 to the position of cursor 571. When cursor 573 no longer exists in zoom region 52 as a result of such an operation, waveform measurement instrument 10 may delete the display of corresponding cursor 574 in region 53 of main region 51.

[0049] 5 to 7, cursor 57 has a shape parallel to the vertical axis direction in order to specify a position in the horizontal axis direction of graph 55, but cursor 57 is not limited to this. For example, cursor may have a shape parallel to the horizontal axis direction in order to specify a position in the vertical axis direction of graph 55, or may be a pattern having an arbitrary shape for specifying two-dimensional coordinates. Waveform measurement instrument 10 may display multiple cursors 57 in the same area.

[0050] 8, cursors 571 and 576 are displayed in main area 51 of screen 50. Cursor 571 is used to specify a position in the horizontal direction of graph 55 (e.g., time, etc.). Cursor 576 is used to specify a position in the vertical direction of graph 55 (e.g., a trigger level or a measurement value threshold, etc.).

[0051] Here, an example will be described in which the user performs an operation to align the cursor 576 with the position of the peak of the graph 55 in the region 53. The user drags the cursor 576 displayed in the main region 51 to the position of the cursor 577 in the zoom region 52 while referring to the graph 551. Specifically, the user drags the cursor 576 from the position of the pointer 585 to the position of the pointer 586. In this case, the coordinates of the pointer 585 are in the main region 51, and the coordinates of the pointer 586 are in the zoom region 52. Therefore, the control unit 11 deletes the cursor 576 from the main region 51 and displays the cursor 577 in the zoom region 52. Furthermore, the control unit 11 displays the cursor 578 corresponding to the cursor 577 in the zoom region 52 in the main region 51. Therefore, the user can position the cursors 577 and 578 at the peak of the graph 551 with high accuracy by an intuitive and easy operation while referring to the graph 551 of the enlarged zoom region 52.

[0052] 5 to 8, the screen 50 includes two areas, the main area 51 and the zoom area 52, but the screen 50 may include three or more areas. For example, the screen 50 may display two or more zoom areas that are enlarged views of two or more partial areas in the main area 51.

[0053] In FIG. 9, the screen 50 includes a main area 51 and two zoom areas 521 and 522. The zoom area 521 is an area in which a part of an area 531 in the main area 51 is enlarged and displayed. The zoom area 522 is an area in which a part of an area 532 in the main area 51 is enlarged and displayed. The zoom area 521 displays a graph 551 obtained by enlarging the graph 55 in the area 531 in the horizontal axis direction. The zoom area 522 displays a graph 552 obtained by enlarging the graph 55 in the area 532 in the horizontal axis direction. In such a screen 50, the control unit 11 accepts a mutual drag operation of the cursor between the main area 51 and the zoom areas 521 and 522. That is, the control unit 11 accepts not only a drag operation from the main area 51 to the zoom area 521 or the zoom area 522, but also a drag operation from the zoom area 521 or the zoom area 522 to the main area 51, and a drag operation between the zoom areas 521 and 522.

[0054] For example, in FIG. 9, a drag operation is performed on cursor 571 displayed in main region 51 from the position of pointer 581 to the position of pointer 584. This operation is intended to align the cursor with the position of the peak of graph 55 in region 532. In response to such an operation, control unit 11 deletes the display of cursor 571 in main region 51 and displays cursor 592 in zoom region 522. Furthermore, control unit 11 displays cursor 593 in region 532 according to the position of cursor 592 in zoom region 522. Therefore, the user can position cursor 593 at the peak of graph 55 in region 532 with an intuitive and easy operation while referring to graph 552 in enlarged zoom region 522.

[0055] As described above, waveform measurement instrument 10 displays screen 50 including a first area (e.g., main area 51) and a second area (e.g., zoom area 52) on display unit 15 for displaying a graph showing a signal waveform. Waveform measurement instrument 10 accepts an operation from a user to drag a cursor for specifying a position on the graph displayed in the first area into the second area. In response to the drag operation of the cursor into the second area, waveform measurement instrument 10 deletes the display of the cursor displayed in the first area and displays the cursor at the destination of the drag operation in the second area. Here, either one of the first area or the second area is an area for enlarging and displaying a part of the other area.

[0056] In this way, the waveform measuring instrument 10 displays the first and second areas, one of which is an area for enlarging and displaying a part of the other area, and accepts a drag operation from one area to the other area. Therefore, the user can position the cursor at a desired position on the graph by an intuitive and simple operation. In addition, since the cursor can be displayed in the second area without displaying the button 99 etc. in the comparative example, the area for displaying the graph can be maximized on the display unit 15.

[0057] The second area may be an area for enlarging and displaying a part of the first area. In response to a drag operation of the cursor into the second area, the waveform measuring instrument 10 may delete the display of the cursor displayed in the first area and display the cursor at the destination of the drag operation. Furthermore, the waveform measuring instrument 10 may further display a cursor at a position in the first area corresponding to the destination of the drag operation in the second area. Therefore, the user can align the cursor to a desired position on the graph by an intuitive and simple operation without performing a complicated operation such as precise alignment.

[0058] The cursor may also be used to specify the direction of the horizontal or vertical axis in the graph, allowing the user to easily specify the direction of the horizontal or vertical axis in the graph.

[0059] The present disclosure is not limited to the above-described embodiments. For example, multiple blocks shown in the block diagram may be integrated, or one block may be divided. Multiple steps shown in the flowchart may be executed in parallel or in a different order depending on the processing capacity of the device executing each step, or as necessary, instead of being executed in chronological order as described. Other modifications are possible without departing from the spirit of the present disclosure. [Explanation of symbols]

[0060] 10 Waveform measuring instrument 11 Control section 12 Storage section 13 Signal input section 14 Operation input section 15 Display 50 screens 51 Main Area 52 Zoom Area 521,522 Zoom Area 53 areas 531,532 areas 55 Graphs Graphs 551 and 552 57 Cursor 571~578 Cursor 581~587 Pointer 592, 593 Cursor 90 screens 91 Main Area 92 Zoom Area 93 areas 95 Graphs 951 Graph 971~974 Cursor 981,982 Pointers 99 Button 991,992 pointers

Claims

1. displaying a screen including a first area and a second area on a display unit for displaying a graph showing a waveform of a signal; receiving, from a user, an operation of dragging a cursor for designating a position in the graph displayed in the first area into the second area; in response to a drag operation of the cursor into the second area, deleting the display of the cursor displayed in the first area, and displaying the cursor at a destination of the drag operation in the second area; A control unit is provided, One of the first area and the second area is an area for enlarging and displaying a part of the other area. Waveform measuring instrument.

2. the second area is an area for enlarging and displaying a part of the first area, the control unit, in response to a drag operation of the cursor into the second area, deletes the display of the cursor displayed in the first area, displays the cursor at a destination of the drag operation, and further displays the cursor at a position in the first area corresponding to the destination of the drag operation within the second area.

2. The waveform measuring instrument according to claim 1.

3. 3. The waveform measuring instrument according to claim 1, wherein the cursor is used to specify a horizontal or vertical axis direction in the graph.

4. A method for controlling a waveform measurement instrument including a control unit, comprising: The control unit: displaying a screen including a first region and a second region on a display unit for displaying a graph showing a waveform of a signal; receiving, from a user, an operation of dragging a cursor for designating a position in the graph displayed in the first area into the second area; a step of deleting the display of the cursor displayed in the first area in response to a drag operation of the cursor into the second area, and displaying the cursor at a destination of the drag operation in the second area; Including, One of the first area and the second area is an area for enlarging and displaying a part of the other area. A method for controlling a waveform measuring instrument.

5. On the computer, a step of displaying a screen including a first area and a second area on a display unit for displaying a graph showing a waveform of a signal; receiving, from a user, an operation of dragging a cursor for designating a position in the graph displayed in the first area into the second area; a step of deleting the display of the cursor displayed in the first area in response to a drag operation of the cursor into the second area, and displaying the cursor at a destination of the drag operation in the second area; Run the command, One of the first area and the second area is an area for enlarging and displaying a part of the other area. program.

Images