JP2023161712A - Electronic device, control method of electronic device and program - Google Patents

Abstract

To provide a technique allowing a user to draw circles with higher operability.SOLUTION: An electronic device includes first receiving means for receiving specification of an existing circle, second receiving means for receiving specification of a position on a screen, and control means for executing control to display a circle inscribed in the specified circle when the specified position received by the second receiving means is inside the specified circle, the circle whose specification is received by the first receiving means, and to display a circle circumscribing the specified circle when the specified position is outside the specified circle.SELECTED DRAWING: Figure 6

Description

The present invention relates to an electronic device capable of drawing figures, a control method thereof, and a program.

BACKGROUND ART In electronic devices, figures such as circles and rectangles are drawn, and there is a need for a drawing method that is easier to operate.

Patent Document 1 proposes the following drawing method. That is, the drawing area Ad (Xmin-max/Ymin-max/Zmin-max) of the three-dimensional figure is set, and the drawing data (radius R/height Z/center coordinates X, Y) of the cylinder FC is input. Based on the drawing data of the area Ad and the cylinder FC, the circles FCa and FCb at both ends of the cylinder FC have their vertices at the center O of the circle and the adjacent division points A and B on the circumference obtained by dividing the circumference of the circle into multiple parts. A plurality of triangles tn designated as O, A, and B are drawn. Among the vertices O, A, and B of triangle tn, if O, A, or O, B is outside the area Ad, or if O, A, and B are all outside the area Ad, the triangle tn is not drawn and A, B If either or both of them are outside the area Ad, or if O is outside the area Ad, a triangle tn is drawn by replacing the vertices outside the area on the boundary that defines the area Ad.

Japanese Patent Application Publication No. 2018-116434

In Patent Document 1, there is room for improvement in operability when drawing a circle.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a technique for drawing a circle with better operability.

The electronic device of the present invention includes:
a first reception means for accepting the designation of an existing yen;
a second reception means for accepting a designation of a position on the screen;
If the designated position accepted by the second receiving means is inside the designated circle, which is the circle whose designation was accepted by the first receiving means, displaying a circle inscribed in the designated circle;
and control means for controlling the display to display a circle circumscribing the specified circle when the specified position is outside the specified circle.

According to the present invention, a circle can be drawn with better operability.

FIG. 1 is a diagram showing an example of the configuration of an electronic device. It is a flowchart of drawing processing by editing software. It is a flowchart of tool 1 processing. It is a flowchart of tool 2 processing. It is a flowchart of tool 3 processing. This is a display example explaining the processing of tools 1 to 3.

FIG. 1 shows an example of the configuration of an electronic device 100 as an example of a device to which the present invention can be applied. The electronic device 100 can be configured using a personal computer (hereinafter referred to as a PC) or the like.

In FIG. 1, the internal bus 150 includes a CPU 101, a memory 102, a non-volatile memory 103, an image processing section 104, a display 105, an operation section 106, a recording medium I/F 107, an external I/F 109, a communication I/F 110, and a camera section. 112 is connected. Each unit connected to the internal bus 150 is configured to be able to exchange data with each other via the internal bus 150.

The memory 102 is composed of, for example, a RAM (volatile memory using a semiconductor element, etc.). The CPU 101 controls each part of the electronic device 100 according to a program stored in the nonvolatile memory 103, for example, using the memory 102 as a work memory. The nonvolatile memory 103 stores image data, audio data, other data, various programs for the CPU 101 to operate, and the like. The nonvolatile memory 103 is composed of, for example, a hard disk (HD) or a ROM.

Under the control of the CPU 101, the image processing unit 104 processes image data stored in the nonvolatile memory 103 or the recording medium 108, video signals acquired via the external I/F 109, and image data acquired via the communication I/F 110. Performs various image processing on images, captured images, etc. Image processing performed by the image processing unit 104 includes A/D conversion processing, D/A conversion processing, image data encoding processing, compression processing, decoding processing, enlargement/reduction processing (resizing), noise reduction processing, and color conversion. This includes processing, etc. The image processing unit 104 may be configured with a dedicated circuit block for performing specific image processing. Further, depending on the type of image processing, the CPU 101 may perform image processing according to a program without using the image processing unit 104.

The display 105 displays images, a GUI screen forming a GUI (Graphical User Interface), etc. under the control of the CPU 101 . The CPU 101 generates a display control signal according to a program, and controls each part of the electronic device 100 to generate a video signal to be displayed on the display 105 and output it to the display 105. Display 105 displays video based on the output video signal. Note that the electronic device 100 itself includes an interface for outputting a video signal to be displayed on the display 105, and the display 105 may be an external monitor (such as a television).

The operation unit 106 is an input device for receiving user operations, including a character information input device such as a keyboard, a pointing device such as a mouse or a touch panel, a button, a dial, a joystick, a touch sensor, a touch pad, and the like. Note that the touch panel is an input device that is configured in a planar manner so as to be superimposed on the display 105, and outputs coordinate information according to a touched position. The CPU 101 acquires a position on the screen (input position) that is input in response to a user's operation on a position input member included in the operation unit 106 . For example, the position of a mouse cursor moved by mouse operation is acquired as an input position (position reception). Alternatively, the position where the touch panel is touched is acquired as the input position.

A recording medium 108 such as a memory card, CD, or DVD can be attached to the recording medium I/F 107, and based on the control of the CPU 101, data can be read from the attached recording medium 108 and data can be written to the recording medium 108. I do. The external I/F 109 is an interface for connecting to external equipment via a wired cable or wirelessly, and for inputting and outputting video signals and audio signals. The communication I/F 110 is an interface for communicating with external devices, the Internet 111, etc., and transmitting and receiving various data such as files and commands.

The camera section 112 is a camera unit that includes an image sensor (imaging sensor) that converts an optical image into an electrical signal, such as a CCD or CMOS device. The camera unit 112 includes a lens group (taking lens) including a zoom lens and a focus lens, a shutter with an aperture function, an image sensor, an A/D converter that converts an analog signal output from the image sensor into a digital signal, and an image sensor. Contains a barrier that covers the system to prevent contamination and damage. The image processing unit 104 performs predetermined pixel interpolation, resizing processing such as reduction, and color conversion processing on data captured and acquired by the camera unit 112 . Based on the calculation results obtained by the image processing unit 104, the CPU 101 performs exposure control, distance measurement control, and AWB (auto white balance) processing. Display image data captured by the camera unit 112 and subjected to image processing by the image processing unit 104 is displayed on the display 105. A digital signal captured by the camera unit 112, once A/D converted by the A/D converter, and stored in the memory 102 is converted into an analog signal by the D/A converter, and sequentially transferred to the display 105 for display. , live view display (LV display) can be performed. The camera unit 112 is capable of capturing still images and moving images.

FIG. 2 is a flowchart of a graphic drawing process executed when editing software (CAD application software, hereinafter simply referred to as CAD software) in the electronic device 100 is started. Each process in this flowchart is realized by the CPU 101 loading a program stored in the nonvolatile memory 103 into the memory 102 and executing it. When there is an instruction to start CAD software that can execute the process shown in FIG. 2, the process shown in FIG. 2 is started. FIG. 2 shows the processing of the CAD software.

In S201, the CPU 101 controls the display 105 to perform initial display. For example, a window for displaying CAD software as shown in FIG. 6(a) is displayed. A return button 601, an end button 602, a drawing display area 600, a tool palette 610, and the like are displayed in the window. It is assumed that the display destination for all processes that perform some kind of display in the processes described later is the display 105. The tool palette 610 is a tool palette for "tangent circle/periphery ellipse tools" among a plurality of tool palettes, and tool icons 611 to 616 are displayed. Tools 1 to 3, which will be described later, correspond to tool icons 614 to 616. Further, when the user issues an instruction to open a file, the file instructed to be opened is opened and displayed. The file is, for example, a file of a drawing to be displayed in the drawing display area 600 in FIG. 6(a). The drawing recorded in the drawing file is, for example, a CAD drawing created using CAD software. When an instruction to open a file is given, the CPU 101 reads the instructed drawing file from the nonvolatile memory 103 and controls the display 105 to display the drawing of the read file. In the example of FIG. 6A, a drawing including a circle 620 (circle object) and a line segment 630 is displayed in the drawing display area 600 as elements (components) of the drawing. Note that the dotted line 631 is shown as an auxiliary line to explain the processing to be described later, and is not actually displayed (it is not a part of the drawing).

In S202, the CPU 101 accepts a drawing editing operation from the user's operation unit 106, and draws various figures and objects in accordance with the accepted operation. Graphic drawing using tools 1 to 3 will be described later and is therefore not included in the processing here.

In S203, the CPU 101 determines whether tool 1 has been selected (tool icon 614 has been clicked). If tool 1 is selected, the process advances to S204. In S204, the CPU 101 executes tool 1 processing. Tool 1 processing will be described later using FIG. 3.

In S205, the CPU 101 determines whether tool 2 has been selected (tool icon 615 has been clicked). If tool 2 is selected, the process advances to S206. In S206, the CPU 101 executes tool 2 processing. The tool 2 processing will be described later using FIG. 4.

In S207, the CPU 101 determines whether tool 3 has been selected (tool icon 616 has been clicked). If tool 3 is selected, the process advances to S208. In S208, the CPU 101 executes tool 3 processing. The tool 3 processing will be described later using FIG.

In S209, the CPU 101 determines whether there has been an operation to save a file. If there is an operation to save a file, the process advances to S210 and the CAD file is saved in the nonvolatile memory 103. As a result, a drawing including objects (figures) drawn in the tools 1 to 3 processing is saved.

In S211, the CPU 101 determines whether there has been an operation to close (end) the CAD file. If there is no operation to close (terminate) the CAD file, return to S202 and repeat the process, and if there is an operation to close (terminate) the CAD file, close the CAD software and terminate the process in FIG. 2. .

FIG. 3 shows a flowchart of tool 1 processing. This flowchart shows details of the process of S204 in FIG. 2 described above.

In S301, the CPU 101 determines whether a circle (for example, circle 620) that has already been drawn (already placed) included in the drawing has been selected. If an existing circle is selected after tool 1 is selected (the tool icon 614 is clicked), or if tool 1 is selected with an existing circle selected, the process advances to S305; otherwise, That is, if no existing circle is selected, the process advances to S302.

In S302, the CPU 101 determines whether an existing object other than a circle has been selected. If an existing object other than a circle is selected after tool 1 is selected (the tool icon 614 is clicked), or if tool 1 is selected while an existing object other than a circle is selected, the process advances to S303. , otherwise the process advances to S304.

In S303, the CPU 101 displays a warning dialog and displays (notifies) a message "Please select yen" urging the user to select yen.

In S304, the CPU 101 determines whether a tool other than tool 1 has been selected. If another tool is selected, the tool 1 process is ended; if not, the process returns to S301 and is repeated.

In S305, the CPU 101 displays a radius input dialog box (hereinafter, the dialog box is simply referred to as a dialog) superimposed on the drawing. The radius input dialog displays a text box for numerically inputting the length of the radius, an OK button, and a Cancel button.

In S306, the CPU 101 accepts a numerical value input operation for the radius into the radius input dialog. The user inputs the desired radius into the text box of the radius input dialog using a keyboard or the like. That is, the CPU 101 accepts the setting of the radius.

In S307, the CPU 101 determines whether the OK button has been clicked (pressed) while a numerical value has been input in the text box of the radius input dialog. If the numerical value has been input and the OK button is pressed, the process advances to S308; otherwise, the process returns to S306. .

In S308, the CPU 101 performs preview display. In the preview display, based on the current mouse cursor position (coordinates), a circle that will be drawn in S311 or S312 when the mouse cursor is clicked there is temporarily displayed. This changes dynamically depending on the mouse position.

More specifically, if the current input coordinates with the mouse cursor are inside the specified circle determined to have been specified in S301 (in this embodiment, the case where circle 620 is specified), the following Draw a circle dynamically depending on the mouse cursor position. That is, in S306, from the circumferential surface of the designated circle that is on the straight line passing through the current mouse cursor position and the center coordinates of the designated circle, and that is closer to the cursor position than the center coordinates of the designated circle, inward of the designated circle. A circle having the center coordinate at the distance of the input radius and having the radius input in S306 is drawn (temporary drawing). This temporarily drawn circle is inscribed in the specified circle.

Furthermore, if the current input coordinates with the mouse cursor are outside the specified circle determined to have been specified in S301, the circle is dynamically drawn according to the mouse cursor position as follows. In other words, on a straight line passing through the current mouse cursor position and the center coordinates of the specified circle, from the circumferential surface of the specified circle that is closer to the cursor position than the center coordinates of the specified circle, to the outside of the arc of the specified circle. A circle with the radius input in S306 and having center coordinates at the distance of the radius input in S306 is drawn (temporary drawing). This temporarily drawn circle circumscribes the specified circle.

By viewing the preview display in S308, the user can confirm in advance whether the desired circle can be drawn by clicking now.

In S309, the CPU 101 determines whether the mouse cursor is clicked while the mouse cursor is on the drawing (within the drawing display area 600). If the user has clicked on the drawing, the process advances to S310; otherwise, the process advances to S313.

In S310, the CPU 101 determines whether the position of the mouse cursor (input position, input coordinates) at the time of clicking is an internal area (inside the circle) of a specified circle (specified circle, for example, circle 620). judge. If it is an internal area, the process advances to S311; otherwise, the process advances to S312.

In S311, the CPU 101 places (displays) a circle (inscribed circle object) having the radius input in S306 (designated radius) inscribed in a designated circle (designated circle, for example, circle 620). More specifically, from the circumferential surface of the specified circle on the straight line passing through the input coordinates at the time of clicking and the center coordinates of the specified circle, and on the input coordinate side of the center coordinates of the specified circle, the arc of the specified circle is A circle with the radius input in S306 and having center coordinates at a distance of the radius input in S306 in the inner direction is drawn (main drawing). The circle drawn here is an object as a component of the drawing.

FIG. 6(b) shows an example of the inscribed circle drawn in S311. The specified circle is a circle 620, and the inscribed circle to be drawn is a circle 621. If the input coordinates (input amount by the user) at the time of clicking are point U1, point U1 is located inside the circle 620. Therefore, from the circumferential surface of the circle 620 on the straight line L1 passing through U1, which is the input coordinate when clicked, and the center coordinate C of the specified circle, and which is closer to the point UI than the center coordinate C of the specified circle, A circle 621 having the radius input in S306 and having the center coordinate P1 at the distance of the radius input in S306 in the inner direction of the arc of the circle is drawn. Note that in FIG. 6B, dotted lines and black circles indicating points (that is, elements other than the circles 620 and 621) are shown for explanation and are not displayed.

In S312, the CPU 101 places (displays) a circle (circumscribed circle object) having the radius input in S306 (designated radius) so as to circumscribe the designated circle (designated circle, for example, circle 620). More specifically, it is on a straight line that passes through the input coordinates at the time of clicking and the center coordinates of the specified circle, and is at the distance of the radius input in S306 from the circumferential surface of the specified circle to the outside of the arc of the specified circle. A circle with the center coordinates and the radius input in S306 is drawn (main drawing). The circle drawn here is an object as a component of the drawing.

FIG. 6C shows an example of the circumscribed circle drawn in S312. The specified circle is a circle 620, and the circumscribed circle to be drawn is a circle 622. If the input coordinates (input amount by the user) at the time of clicking are point U2, point U2 is located outside the circle 620. Therefore, the distance from the circumferential surface of the circle 620 to the outside of the designated circle on the straight line L2 passing through U2, which is the input coordinate at the time of clicking, and the center coordinate C of the designated circle, is the radius distance input in S306. A circle 622 having the center coordinate P2 and the radius input in S306 is drawn. Note that in FIG. 6(c), dotted lines and black circles indicating points (that is, elements other than the circles 620 and 622) are shown for explanation and are not displayed.

In S313, the CPU 101 determines whether a tool other than tool 1 has been selected. If another tool is selected, the tool 1 process is ended; if not, the process returns to S308 and repeats the process. If the user clicks further after proceeding to S308, it is possible to arrange as many circles with the radius specified in S306 as the number of clicks. That is, by simply clicking repeatedly while checking the position where you want to place the circle in the preview, you can draw (place) multiple circles that touch the same circle in succession. That is, after the CPU 101 places the first circle inscribed or the second circle circumscribed in the specified circle in response to the first click operation, the CPU 101 places the first circle inscribed or the second circle circumscribed in the designated circle in response to the second click operation performed without performing any other operation. Depending on the location, a third circle inscribed or a fourth circle circumscribed to the same designated circle is arranged, with the position designated by the second click operation as the designated position.

According to the processing of the tool 1 described above, it is possible to easily draw a circle with a specified radius that circumscribes or inscribes a specified circle. For example, it is suitable for use when you want to cover a circle with a fixed radius (for example, a building seat with a fixed radius, such as a log or pillar). For example, when designing a round flower bed with circular blocks or circular piles with a fixed radius, it is possible to provide a design operation with a very simple operation feeling. If the entire site on which flower beds can be placed is defined as a circle, lay out circles (blocks or stakes) so that they are inscribed within the site. If the site to be used for the soil inside the flower bed has been defined in advance, circles (blocks or stakes) are laid out to circumscribe the site. Of course, this is just one example, and is suitable for use in various applications.

FIG. 4 shows a flowchart of tool 2 processing. This flowchart shows details of the process of S206 in FIG. 2 described above.

In S401, the CPU 101 displays a circumference input dialog superimposed on the drawing. The circumference input dialog displays a text box for numerically inputting the circumference, that is, the length of the circumference, and an OK button and a cancel button.

In S402, the CPU 101 accepts an operation to input a numerical value of the circumference into the circumference input dialog. The user inputs the desired circumference into the text box of the circumference input dialog using a keyboard or the like. That is, the CPU 101 accepts the setting of the circumference (circumference) (perimeter acceptance).

In S403, the CPU 101 determines whether the OK button has been clicked (pressed) while a numerical value has been input in the text box of the circumference input dialog. If the numerical value has been input and the OK button is pressed, the process advances to S404; otherwise, the process returns to S402. .

In S404, the CPU 101 performs preview display. In the preview display, based on the current mouse cursor position (coordinates), a circle that will be drawn in S406 when the mouse cursor is clicked there is temporarily displayed. This changes dynamically depending on the mouse position. More specifically, a circle is drawn with the current mouse cursor position as the center and the circumference input in S402. By viewing the preview display in S404, the user can check in advance whether the desired circle can be drawn by clicking now.

In S405, the CPU 101 determines whether the mouse cursor is clicked while the mouse cursor is on the drawing (within the drawing display area 600). If the user has clicked on the drawing, the process advances to S406; otherwise, the process advances to S407.

In S406, the CPU 101 draws (arranges and displays) a circle centered on the mouse cursor position (input position, input coordinates) at the time of the click and having the circumference input in S402 (main drawing). The circle drawn here is an object as a component of the drawing.

FIG. 6(d) shows an example of the circle drawn in S406. The circle drawn in S406 is circle 623. If the input coordinates (input amount by the user) at the time of clicking are point U3, a circle 623 centered on point U3 and having the circumference input in S402 (circumference) is drawn ( Book drawing). Note that in FIG. 6(d), black circles indicating points (that is, elements other than the circle 623) are shown for explanation and are not displayed.

In S407, the CPU 101 determines whether a tool other than tool 2 has been selected. If another tool is selected, the tool 2 process is ended; if not, the process returns to S404 and is repeated. If the user clicks further after proceeding to S404, the circle having the circumference specified in S402 can be placed by the number of clicks. That is, you can draw (place) multiple circles with the same circumference in succession by simply clicking repeatedly while checking the position where you want to place the circle in the preview. That is, after the CPU 101 places the first circle centered at the position specified by the first click operation and has the specified circumference specified in S401, the CPU 101 executes the process without performing any other operation. control to place a second circle centered at the position specified by the second click operation and having the same specified circumference in response to the second click operation performed. do.

According to the processing of the tool 2 described above, it becomes possible to easily draw a circle with a specified circumference. For example, when the materials to be spread or pasted around the circumference are determined, it is possible to easily draw a circle that matches the materials. For example, if the length of posters, wallpaper, etc. to be pasted on cylinders is fixed, it is possible to easily design what size cylinders should be placed. Of course, this is just one example, and is suitable for use in various applications.

FIG. 5 shows a flowchart of tool 3 processing. This flowchart shows details of the process of S208 in FIG. 2 described above.

In S501, the CPU 101 determines whether an already drawn line segment or straight line object (for example, line segment 630) included in the drawing has been selected. That is, existing line segment designation or straight line designation is accepted (existing line reception). After tool 3 is selected (tool icon 616 is clicked), an existing line segment or straight line is selected, or tool 3 is selected with an existing line segment or straight line selected (tool If the icon 616 has been clicked, the process advances to S502. If not, that is, if no existing line segment or straight line is selected, the process advances to S506. Note that a warning may be displayed when an object other than a line segment or a straight line is selected, and a message may be displayed (notification) to urge the user to select the line segment or straight line.

In S502, the CPU 101 determines whether a tool other than tool 3 has been selected. If another tool is selected, the tool 3 process is ended; if not, the process returns to S501.

In S503, the CPU 101 performs preview display. In the preview display, based on the current mouse cursor position (coordinates), a circle that will be drawn in S506 when the mouse cursor is clicked there is temporarily displayed. This changes dynamically depending on the mouse position. More specifically, a circle is drawn that is in contact with the existing line segment or straight line (hereinafter referred to as a designated line segment) that is determined to have been designated in S501 and is centered at the current mouse cursor position. The radius of the circle is automatically calculated (it is the shortest distance between the mouse cursor position and the specified line segment). By viewing the preview display in S503, the user can confirm in advance whether the desired circle can be drawn by clicking now.

In S504, the CPU 101 determines whether the mouse cursor is clicked while the mouse cursor is on the drawing (within the drawing display area 600). If the user has clicked on the drawing, the process advances to S505; otherwise, the process advances to S507.

In S505, the CPU 101 calculates the radius of the circle to be placed based on the position of the mouse cursor (input position, input coordinates) when clicked. More specifically, the distance (shortest distance) between the mouse cursor position (input position, input coordinates) when clicked and the specified line segment on a straight line is calculated as the radius. This is the distance between the mouse cursor position (input position, input coordinates) when clicked and the specified line segment. In other words, among the second straight lines that intersect perpendicularly to the first straight line that overlaps with the specified line segment and that pass through the input coordinates when clicked, the first straight line and the second straight line are Calculate the distance from the intersection with the straight line.

In step S506, the CPU 101 draws a circle that is in contact with the straight line of the specified line segment and whose center is the position of the mouse cursor (input position, input coordinates) at the time of clicking (main drawing). In other words, it is arranged and displayed. The radius of the circle is calculated in S505. The circle drawn here is an object as a component of the drawing.

FIG. 6E shows an example of a circle drawn in S506. The circle drawn in S506 is circle 633. If the designated line segment is the line segment 630, and the input coordinates (input amount by the user) when clicked are point U4, then the dotted line 631 (on the same straight line) that overlaps with the designated line segment 630 ( A circle 633 that is in contact with the line segment 630 and its extension and has the radius calculated in S505 is drawn. The first straight line mentioned above in S505 is the dotted line 631, and the second straight line is the straight line 632. In FIG. 6(e), dotted lines, black circles indicating points, right angle symbols, etc. are shown for explanation and are not displayed.

In S507, the CPU 101 determines whether a tool other than tool 3 has been selected. If another tool is selected, the tool 3 process is ended; otherwise, the process advances to S503. If the user clicks further after proceeding to S503, it is possible to arrange as many circles that touch the straight line of the line segment specified in S501 as many times as the number of clicks. That is, by simply clicking repeatedly while checking the position where you want to place the circle in the preview, you can draw (place) multiple circles that touch on the same straight line in succession. In other words, after placing the first circle centered on the position specified by the first click operation and touching the reference straight line (the straight line including the line segment 630 and the dotted line 631), perform other operations. In response to a second click operation performed without a second click operation, a second circle that is centered at the position specified by the second click operation and that is in contact with the reference straight line is arranged. Control as follows.

According to the processing of the tool 3 described above, it becomes possible to easily draw a circle tangent to a straight line of a specified line segment. For example, when you want to place circular flooring outside an opening between two parallel exterior walls (as indicated by the dotted line in Figure 6(a)), this will make the design work easier. be able to. Of course, this is just one example, and is suitable for use in various applications.

According to the present embodiment described above, it is possible to draw a circle with better operability.

In addition, although the above-mentioned embodiment was explained using a click operation on a PC, the present invention is also applicable to electronic devices such as touch-operable PCs, tablet terminals, and smartphones. When performing the various processes described above in response to a touch operation, the above-described click can be applied by replacing the above-described click with an operation of touching the screen (operation of giving an instruction, specifying a position, or inputting a position on the display area).

Note that the various controls described above as being performed by the CPU 101 may be performed by a single piece of hardware, or multiple pieces of hardware (for example, multiple processors or circuits) may share the processing to control the entire device. You may do so.

In addition, in the above-mentioned embodiment, although the example of the figure which is the element (component) of a drawing was demonstrated as an object, an object is not limited to this. This embodiment can be applied to any situation where a circle is drawn.

Further, although the present invention has been described in detail based on its preferred embodiments, the present invention is not limited to these specific embodiments, and the present invention may be applied to various forms without departing from the gist of the present invention. included. Furthermore, each of the embodiments described above is merely one embodiment of the present invention, and it is also possible to combine the embodiments as appropriate.

Further, in the above-described embodiment, the case where the present invention is applied to a CAD application on a PC has been described as an example, but this is not limited to this example, and any device or software that can draw a circle for some purpose. Applicable if applicable. For example, it is applicable to various drawing software other than CAD, layout editing software, presentation software, image editing software, graphic design software, document creation software, spreadsheet software, and the like. Further, in the above-described embodiment, the case where the present invention is applied to the electronic device 100 of FIG. Applicable. That is, the present invention is applicable to personal computers, PDAs, mobile phone terminals, portable image viewers, printer devices with displays, digital photo frames, music players, game machines, electronic book readers, and the like.

(Other embodiments)
The present invention is also realized by performing the following processing. That is, the software (program) that realizes the functions of the embodiments described above is supplied to a system or device via a network or various storage media, and the computer (or CPU, MPU, etc.) of the system or device reads the program code. This is the process to be executed. In this case, the program and the storage medium storing the program constitute the present invention.

100 electronic device, 101 CPU, 102 memory, 103 nonvolatile memory, 104 image processing unit, 105 display, 106 operation unit, 107 recording medium I/F, 108 recording medium, 109 external I/F, 110 communication I/F, 111 Internet, 112 Camera Department, 150 Internal Bus

The electronic device of the present invention includes:
a first reception means for accepting the designation of an existing yen;
a second reception means for accepting a designation of a position on the screen;
a third reception means that accepts a radius specification from a user using an operation different from the operation that accepts the specification of a position on the screen;
If the specified position accepted by the second reception means is inside the specified circle, which is the circle whose designation was accepted by the first reception means, the specified position is a circle inscribed in the specified circle, and the third Display a circle with a specified radius that is the specified radius accepted by the reception means of
If the specified position is outside the specified circle, the control means controls to display a circle having the specified radius that circumscribes the specified circle .

Claims (24)

a first reception means for accepting the designation of an existing yen;
a second reception means for accepting a designation of a position on the screen;
If the designated position accepted by the second receiving means is inside the designated circle, which is the circle whose designation was accepted by the first receiving means, displaying a circle inscribed in the designated circle;
and control means for controlling the display to display a circle circumscribing the designated circle when the designated position is outside the designated circle. further comprising a third reception means for accepting a radius specification;
The control means includes:
If the designated position is inside the designated circle, displaying a circle inscribed in the designated circle and having a designated radius that is the radius for which the third receiving means has accepted the designation;
When the designated position is outside the designated circle, the electronic device is controlled to display a circle that circumscribes the designated circle and has the designated radius. device. When the first receiving means accepts the designation of an existing circle and the third receiving means receives the designation of the radius, the control means moves the position of the cursor by setting the position of the mouse cursor as the specified position. 3. The electronic device according to claim 2, wherein the electronic device is controlled to dynamically display the inscribed circle or the circumscribed circle in accordance with. After the first reception means accepts the designation of an existing circle and the third reception means receives the designation of the radius, in response to a click operation, the control means determines whether the click operation has been performed. 3. The electronic device according to claim 2, wherein control is performed so that the inscribed circle or the circumscribed circle is arranged as a component of a drawing, with the position of the cursor when the cursor is pressed as the specified position. The control means may perform a second click operation performed without performing any other operation after arranging a first circle inscribed or a second circle circumscribed to the specified circle in response to the first click operation. control to place a third circle inscribed in or a fourth circle circumscribed to the specified circle, with the position specified by the second click operation as the specified position. The electronic device according to claim 4, characterized in that: The electronic device according to claim 4, wherein the drawing is a CAD drawing. 2. The electronic device according to claim 1, wherein when the control means receives a designation of an existing figure other than a circle, it performs control so as to issue a notification prompting the user to select a circle. A program for causing a computer to function as each means of the electronic device according to any one of claims 1 to 7. a first reception step of accepting the designation of an existing circle;
a second reception step for accepting a specification of a position on the screen;
If the designated position accepted in the second reception step is inside the designated circle, which is the circle whose designation was accepted in the first reception step, display a circle inscribed in the designated circle;
A control method for an electronic device, comprising: a control step of displaying a circle circumscribing the specified circle when the specified position is outside the specified circle. a circumference receiving means for accepting a specification of a circumference;
a position receiving means for receiving a specification of a position on the screen;
control means for controlling the display of a circle centered at the position specified by the position receiving means and having a circumference equal to the circumference specified by the circumference receiving means; An electronic device characterized by having: When the circumference receiving means receives a designation of the circumference, the control means selects a circle whose center is the cursor position and whose circumference has been received by the circumference receiving means, at the cursor. 11. The electronic device according to claim 10, wherein the electronic device is controlled to be displayed dynamically in accordance with positional movement. In response to a click operation after the circumference reception means receives the designation of the circumference, the control means generates a circle centered at the position of the cursor at the time of the click operation, 11. The electronic device according to claim 10, wherein the electronic device is controlled so that a circle having a circumference whose designation is accepted by the circumference accepting means is arranged as a component of a drawing. The control means arranges a first circle having a specified circumference, which is a circle centered at a position specified by the first click operation, and whose designation is accepted by the circumference reception means, and then performs another operation. In response to a second click operation performed without performing a second click operation, a second circle having the specified circumference and having the center at the position specified by the second click operation is created. The electronic device according to claim 12, wherein the electronic device is controlled to be placed. The electronic device according to claim 12, wherein the drawing is a CAD drawing. A program for causing a computer to function as each means of the electronic device according to any one of claims 10 to 14. a circumference reception step for accepting specification of a circumference;
a position reception step for accepting specification of a position on the screen;
a control step of controlling to display a circle centered at the position specified in the position receiving step and having a circumference equal to the circumference specified in the circumference receiving step; A method for controlling an electronic device, comprising: a line reception means for accepting the specification of an existing line segment or straight line;
a position receiving means for receiving a specification of a position on the screen;
and control means for controlling to display a circle that is in contact with a reference straight line that overlaps with the line segment or straight line whose designation has been accepted by the line reception means and whose center is the designated position that has been accepted by the position reception means. electronic equipment. When the line receiving means accepts the designation of an existing line segment or straight line, the control means controls a circle whose center is the cursor position and which is tangent to the reference straight line according to the movement of the cursor position. 18. The electronic device according to claim 17, wherein the electronic device is controlled to be dynamically displayed. After the line receiving means receives the specification of an existing line segment or straight line, in response to a click operation, the control means generates a circle centered at the position of the cursor at the time of the click operation. 18. The electronic device according to claim 17, wherein the electronic device is controlled so that a circle tangent to the reference straight line is arranged as a component of the drawing. The control means is a circle whose center is a position specified by a first click operation, and which is a second circle that is performed without any other operation after placing the first circle that is in contact with the reference straight line. In response to the click operation, control is performed to place a second circle that is centered at the position specified by the second click operation and that is tangent to the reference straight line. The electronic device according to claim 19. The electronic device according to claim 19, wherein the drawing is a CAD drawing. The control means performs control to calculate, based on the reference straight line and the specified position, the radius of a circle that is in contact with the reference straight line and whose center is the specified position received by the position receiving means. The electronic device according to item 17. A program for causing a computer to function as each means of the electronic device according to any one of claims 17 to 22. a line reception step that accepts the specification of an existing line segment or straight line;
a position reception step for accepting specification of a position on the screen;
and a control step for controlling to display a circle that is in contact with a reference straight line that overlaps with the line segment or straight line whose designation is accepted in the line reception step, and whose center is the specified position accepted in the position reception step. How to control electronic equipment.

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