JP7236015B1 - ELECTRONIC DEVICE, ELECTRONIC DEVICE CONTROL METHOD, AND PROGRAM - Google Patents

Abstract

A technique for drawing a circle with better operability is provided. SOLUTION: First acceptance means for accepting designation of an existing circle; Second acceptance means for accepting designation of a position on a screen; If the specified position is inside the specified circle which is the circle whose specification is accepted by the accepting means, a circle inscribed in the specified circle is displayed, and if the specified position is outside the specified circle, the specified position is circumscribed to the specified circle. and a control means for controlling to display a circle which

Description

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

2. Description of the Related Art In electronic devices, figures such as circles and rectangles are drawn, and there is a demand for drawing methods that are more operable.

Patent Document 1 proposes the following drawing method. That is, a solid figure drawing area Ad (Xmin-max/Ymin-max/Zmin-max) is set, and 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 are formed with 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 a plurality of divisions. A plurality of triangles tn with O, A, and B are drawn. Of the vertices O, A, B of the triangle tn, if O, A or O, B are outside the area Ad, or if all O, A, B are outside the area Ad, the triangle tn is not drawn, and A, B When either or both of are outside the area Ad and only O is outside the area Ad, the vertices outside the area are replaced on the boundary defining the area Ad to draw the triangle tn.

JP 2018-116434 A

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

SUMMARY OF THE INVENTION Accordingly, 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 is
a first receiving means for receiving designation of an existing circle;
a second receiving means for receiving designation of a position on the screen;
a third receiving means for receiving a designation of a radius from a user by an operation different from an operation for receiving designation of a position on the screen;
When the designated position received by the second reception means is inside the designated circle which is the circle whose designation is received by the first reception means, a circle inscribed in the designated circle, and the third Display a circle with a specified radius that is the specified radius received by the receiving means of
and control means for controlling to display a circle of the specified radius 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.

It is a figure which shows an example of a structure of an electronic device. 4 is a flow chart of drawing processing by editing software. 10 is a flowchart of tool 1 processing; 10 is a flowchart of tool 2 processing; It is a flowchart of tool 3 processing. It is a display example for explaining the processing of tools 1 to 3.

FIG. 1 shows an example 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 PC) or the like.

1, a CPU 101, a memory 102, a nonvolatile memory 103, an image processing unit 104, a display 105, an operation unit 106, a recording medium I/F 107, an external I/F 109, a communication I/F 110, and a camera unit are connected to an internal bus 150. 112 are connected. Each unit connected to the internal bus 150 is capable of exchanging data with each other via the internal bus 150 .

The memory 102 is, for example, a RAM (a volatile memory using a semiconductor element, etc.). The CPU 101 controls each part of the electronic device 100 using the memory 102 as a work memory, for example, according to a program stored in the nonvolatile memory 103 . 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 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 obtained via the external I/F 109, and image signals obtained via the communication I/F 110. Various types of image processing are applied to images, captured images, and the like. The 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 (resize), noise reduction processing, color conversion, and so on. 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 can perform image processing according to a program without using the image processing unit 104 .

The display 105 displays an image, a GUI screen that constitutes a GUI (Graphical User Interface), and the like, under the control of the CPU 101 . CPU 101 controls each unit of electronic device 100 to generate a display control signal according to a program, generate a video signal to be displayed on display 105 , and output the video signal to display 105 . The display 105 displays an image based on the output image signal. Electronic device 100 itself includes an interface for outputting a video signal to be displayed on display 105, and display 105 may be configured by 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 and a touch panel, buttons, dials, joysticks, touch sensors, and touch pads. It should be noted that the touch panel is an input device that is superimposed on the display 105 and configured in a two-dimensional manner so as to output coordinate information corresponding to the touched position. The CPU 101 acquires a position (input position) on the screen that is input according to the user's operation on the 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 touched position on the touch panel is acquired as the input position.

A recording medium I/F 107 can be loaded with a recording medium 108 such as a memory card, a CD, and a DVD. I do. The external I/F 109 is an interface for connecting with an external device via a wired cable or wirelessly and inputting/outputting a video signal and an audio signal. The communication I/F 110 is an interface for communicating with an external device, the Internet 111, etc., and transmitting/receiving various data such as files and commands.

The camera unit 112 is a camera unit including an imaging device (imaging sensor) including a CCD or CMOS device that converts an optical image into an electrical signal. The camera unit 112 includes a lens group (photographing lens) including a zoom lens and a focus lens, a shutter having 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 resizing processing such as predetermined pixel interpolation and reduction, and color conversion processing on data acquired by imaging with 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 image-processed by the image processing unit 104 is displayed on the display 105 . The digital signal captured by the camera unit 112, A/D converted once by the A/D converter, and stored in the memory 102 is converted to analog 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 flow chart of a figure drawing process executed when editing software (CAD application software, hereinafter simply referred to as CAD software) in electronic device 100 is activated. Each process in this flow chart is implemented by the CPU 101 developing a program stored in the nonvolatile memory 103 in the memory 102 and executing the program. When there is an instruction to activate CAD software capable of executing the processing of FIG. 2, the processing of FIG. 2 is started. FIG. 2 shows processing of 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. The window displays a return button 601, an end button 602, a drawing display area 600, a tool palette 610, and the like. It is assumed that the display destination of the processing for displaying some kind of display in the processing described later is the display 105 . A tool palette 610 is a tool palette for a “tangent circle/circumferential circle tool” among a plurality of prepared tool palettes, and displays tool icons 611 to 616 . Tools 1-3, which will be described later, correspond to tool icons 614-616. Also, when the user instructs 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 of FIG. 6(a). The drawing recorded in the drawing file is, for example, a CAD drawing created by 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 for explaining the processing to be described later, and is not actually displayed (it is not part of the drawing).

In S202, the CPU 101 receives a drawing editing operation from the user's operation unit 106, and draws various figures and objects according to the received operation. Figure drawing using tools 1 to 3 is not included in the processing here because it will be described later.

In S203, the CPU 101 determines whether or not the tool 1 has been selected (the tool icon 614 has been clicked). If Tool 1 is selected, the process proceeds to S204. In S204, the CPU 101 executes tool 1 processing. Tool 1 processing will be described later with reference to FIG.

In S205, the CPU 101 determines whether or not the tool 2 has been selected (the tool icon 615 has been clicked). If Tool 2 is selected, the process proceeds to S206. In S206, the CPU 101 executes tool 2 processing. Tool 2 processing will be described later with reference to FIG.

In S207, the CPU 101 determines whether or not the tool 3 has been selected (the tool icon 616 has been clicked). If Tool 3 is selected, the process proceeds to S208. In S208, the CPU 101 executes tool 3 processing. Tool 3 processing will be described later with reference to FIG.

In S209, the CPU 101 determines whether or not there has been an operation to save the file. If there is an operation to save the file, the process proceeds to S<b>210 to save the CAD file in the nonvolatile memory 103 . As a result, the drawing including the objects (figures) drawn by the tools 1 to 3 processing is saved.

In S211, the CPU 101 determines whether or not there has been an operation to close (terminate) the CAD file. If there is no operation to close (terminate) the CAD file, return to S202 and repeat the process. .

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

In S301, the CPU 101 determines whether or not an already drawn (arranged) circle (for example, circle 620) included in the drawing has been selected. After tool 1 is selected (tool icon 614 is clicked), if an existing circle is selected or tool 1 is selected with an existing circle selected, proceed to S305; That is, if no existing circle is selected, the process proceeds to S302.

In S302, the CPU 101 determines whether or not 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 proceeds to S303. , otherwise, the process proceeds to S304.

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

In S304, the CPU 101 determines whether or not a tool other than Tool 1 has been selected. If another tool is selected, the tool 1 process is terminated; otherwise, the process returns to S301 and repeats the process.

In S305, the CPU 101 displays a radius input dialog box (hereinafter, the dialog box is simply referred to as 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 to the radius input dialog. The user inputs a desired radius into the text box of the radius input dialog using a keyboard or the like. That is, the CPU 101 accepts setting of the radius.

In S307, the CPU 101 determines whether or not the OK button has been clicked (depressed) while a numerical value has been entered in the text box of the radius input dialog. If the numeric value has already been entered and the OK button has been pressed, the process proceeds 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 to be drawn in S311 or S312 when clicked there is provisionally displayed. This changes dynamically depending on the mouse position.

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

Also, if the coordinates currently input with the mouse cursor are outside the specified circle determined to have been specified in S301, the circle is dynamically drawn according to the position of the mouse cursor 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 on the cursor position side of the center coordinates of the specified circle, to the outer direction of the arc of the specified circle A circle having 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 designated 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 or not the mouse cursor is clicked on the drawing (within the drawing display area 600). If the drawing has been clicked, the process proceeds to S310; otherwise, the process proceeds to S313.

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

In S311, the CPU 101 arranges (displays) the circle (inscribed circle object) having the radius (designated radius) input in S306 so as to be inscribed in the designated circle (designated circle, for example, circle 620). More specifically, from the circumference of the specified circle on the straight line that passes through the input coordinates when clicked 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 A circle with the radius input in S306 is drawn in the inward direction with the center coordinate at the distance of the radius input in S306 (main drawing). The circle drawn here is an object as a component of the drawing.

FIG. 6B shows an example of an inscribed circle drawn in S311. The specified circle is the circle 620 and the drawn inscribed circle is the circle 621 . If the input coordinates (input coordinate by the user) at the time of clicking are the point U1, the point U1 is located inside the circle 620. FIG. Therefore, the specified A circle 621 with the radius input in S306 is drawn with the center coordinate P1 at the distance of the radius input in S306 toward the inside of the arc of the circle. 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 arranges (displays) a circle (circumscribed circle object) having the radius (specified radius) input in S306 so as to circumscribe the specified circle (specified circle, for example, circle 620). More specifically, it is the distance of the radius input in S306 from the circumferential surface of the specified circle to the outer direction of the arc of the specified circle on the straight line passing through the input coordinates when clicked and the center coordinates of the specified circle. A circle having 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. A designated circle is a circle 620 and a drawn circumscribed circle is a circle 622 . If the input coordinates (input coordinate by the user) at the time of clicking are the point U2, the point U2 is located outside the circle 620. FIG. Therefore, the distance of the radius input in S306 from the circumferential surface of the circle 620 to the outside of the designated circle on the straight line L2 that passes through the coordinates U2, which are the input coordinates at the time of clicking, and the center coordinates C of the designated circle. Draw a circle 622 of the radius entered at S306 with center coordinate P2. Note that in FIG. 6C, 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 or not a tool other than Tool 1 has been selected. If another tool is selected, the tool 1 process is terminated; otherwise, the process returns to S308 and repeats the process. After proceeding to S308, if a further click is performed, circles having the radius specified in S306 can be arranged by the number of clicks. That is, it is possible to continuously draw (arrange) a plurality of circles tangent to the same circle simply by repeatedly clicking while confirming the position where the circle is to be arranged in the preview. That is, after the CPU 101 arranges the first circle that inscribes or the second circle that circumscribes the designated circle according to the first click operation, the second click operation performed without performing other operations is performed. Depending on what happened, the position specified by the second click operation is used as the specified position, and a third circle inscribed or a fourth circle circumscribed in the same specified circle is arranged.

According to the processing of the tool 1 described above, it is possible to easily draw a circle with a designated radius that circumscribes or inscribes a designated circle. For example, it is suitable for use when it is desired to cover a circle with a fixed radius (for example, a building seat with a fixed radius, such as a log or a pillar). For example, when designing a round flower bed with circular blocks or circular stakes with a fixed radius, it is possible to provide a design operation with a very simple operational feeling. If the entire site where the flowerbed can be arranged is defined as a circle, spread circles (blocks or stakes) so as to inscribe the site. If the site to be used for the soil inside the flower bed is defined in advance, lay out circles (blocks or stakes) so as to circumscribe the site. Of course, this is only an example, and it is suitable for various uses.

FIG. 4 shows a flowchart of tool 2 processing. This flowchart shows the 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 perimeter input dialog displays a text box for inputting the perimeter, that is, the length of the circumference as a numerical value, an OK button, and a Cancel button.

In S402, the CPU 101 accepts an operation for inputting a numerical value for the circumference to 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 setting of the circumference (circumference) (acceptance of circumference).

In S403, the CPU 101 determines whether or not the OK button has been clicked (depressed) while a numerical value has been entered in the text box of the circumference input dialog. If the numeric value has already been entered and the OK button has been pressed, the process proceeds 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), the circle to be drawn in S406 when clicked there is provisionally displayed. This changes dynamically depending on the mouse position. More specifically, a circle having the perimeter input in S402 is drawn with the current mouse cursor position as the center. By viewing the preview display in S404, the user can confirm in advance whether the desired circle can be drawn by clicking now.

In S405, the CPU 101 determines whether or not the mouse cursor is clicked on the drawing (within the drawing display area 600). If the drawing is clicked, the process proceeds to S406; otherwise, the process proceeds to S407.

In S406, the CPU 101 draws (arranges and displays) a circle having the perimeter input in S402 centering on the mouse cursor position (input position, input coordinates) when clicked (main drawing). The circle drawn here is an object as a component of the drawing.

FIG. 6D shows an example of a circle drawn in S406. A circle 623 is drawn in S406. If the input coordinates (the amount input by the user) at the time of clicking are the point U3, a circle 623 (circumference) centered at the point U3 and having the perimeter input in S402 is drawn ( book drawing). In FIG. 6D, 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 or not a tool other than Tool 2 has been selected. If another tool is selected, the tool 2 process is terminated; otherwise, the process returns to S404 and repeats the process. After proceeding to S404, if a further click is performed, circles having the perimeter specified in S402 can be arranged by the number of clicks. That is, a plurality of circles having the same circumferential length can be continuously drawn (arranged) simply by repeatedly clicking while confirming the position where the circle is to be arranged in the preview. That is, after arranging the first circle centered at the position specified by the first click operation and having the specified perimeter specified in S401, the CPU 101 performs no other operation. In response to the fact that a second click operation has been performed, a second circle centered at the position specified by the second click operation and having the same specified perimeter is controlled to be arranged. do.

According to the processing of the tool 2 described above, it is possible to easily draw a circle having a specified perimeter. For example, when the material to be spread or pasted around the circumference is decided, a circle can be drawn easily according to the material. For example, when the length of a poster or wallpaper to be pasted on a cylinder is fixed, it is possible to easily design what size cylinder should be arranged. Of course, this is only an example, and it is suitable for various uses.

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

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

In S502, the CPU 101 determines whether or not a tool other than Tool 3 has been selected. If another tool is selected, the tool 3 process is terminated; otherwise, 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), the circle to be drawn in S506 when clicked there is provisionally displayed. This changes dynamically depending on the mouse position. More specifically, a circle is drawn centered on the current mouse cursor position by contacting the existing line segment or straight line determined to be specified in S501 (hereinafter referred to as the specified line segment). The radius of the circle is automatically calculated (the shortest distance between the mouse cursor position and the designated 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 or not the mouse cursor is clicked on the drawing (within the drawing display area 600). If the drawing is clicked, the process proceeds to S505; otherwise, the process proceeds to S507.

In S505, the CPU 101 calculates the radius of the circle to be arranged based on the mouse cursor position (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 straight line of the specified line segment is calculated as the radius. This is the distance between the position (input position, input coordinates) of the mouse cursor when clicked and the straight line of the specified line segment. That is, of the second straight lines perpendicularly intersecting the first straight line that overlaps with the specified line segment and passing through the input coordinates at the time of clicking, the first straight line and the second straight line Calculate the distance from the point of intersection with the straight line.

In S506, the CPU 101 draws a circle centered on the position (input position, input coordinates) of the mouse cursor when it is clicked, touching the straight line of the specified line segment (main drawing). That is, they are arranged and displayed. The radius of the circle is the one 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 the circle 633 . If the specified line segment is the line segment 630 and the input coordinates (the amount of input by the user) at the time of clicking is the point U4, the dotted line 631 (on the same straight line) that overlaps the specified line segment 630 A circle 633 is drawn that is in contact with the line segment 630 and its extension line and has the radius calculated in S505. The first straight line described in S505 is the dotted line 631, and the second straight line is the straight line 632. As shown in FIG. In FIG. 6(e), dotted lines, black circles indicating dots, right-angled symbols, etc. are shown for explanation purposes and are not displayed.

In S507, the CPU 101 determines whether or not a tool other than Tool 3 has been selected. If another tool is selected, the tool 3 process is terminated; otherwise, the process proceeds to S503. After proceeding to S503, by further clicking, a circle can be placed in contact with the straight line of the line segment specified in S501 by the number of clicks. That is, by repeatedly clicking while confirming the position where the circle is to be placed in the preview, it is possible to continuously draw (arrange) a plurality of circles that are in contact with each other on the same straight line. That is, after placing the first circle centered at the position designated by the first click operation and in contact with the reference straight line (the straight line including the line segment 630 and the dotted line 631), another operation is performed. A second circle centered at the position specified by the second click operation and in contact with the reference straight line is arranged in response to the second click operation performed without the second click operation. to control.

According to the processing of the tool 3 described above, it is possible to easily draw a circle tangent to the straight line of the specified line segment. For example, design work such as when you want to place a circular floor material outside the opening (dotted line in Fig. 6(a)) provided between two parallel outer walls can be made easier. be able to. Of course, this is only an example, and it is suitable for various uses.

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

In the above-described embodiment, the click operation on the PC has been described, but the present invention can also be applied to electronic devices such as a touch-operable PC, tablet terminal, and smart phone. When the above-described various processes are performed according to the touch operation, the above-described click can be applied by replacing the above-described click with an operation of touching the screen (an operation of pointing, specifying a position, or inputting a position on the display area).

Note that the various controls described above that are performed by the CPU 101 may be performed by one piece of hardware. may be performed.

In the above-described embodiment, an example of a figure that is an element (component) of a drawing has been described as an object, but the object is not limited to this. This embodiment can be applied to any scene as long as it draws a circle.

Moreover, 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 various forms within the scope of the present invention can be applied to the present invention. included. Furthermore, each embodiment described above merely shows one embodiment of the present invention, and it is also possible to combine each embodiment 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 capable of drawing a circle for some purpose can be used. applicable if For example, it can be applied 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 can be applied to personal computers, PDAs, mobile phone terminals, portable image viewers, printers equipped with displays, digital photo frames, music players, game machines, electronic book readers, and the like.

(Other embodiments)
The present invention is also realized by executing the following processing. That is, the software (program) that realizes the functions of the above-described embodiments 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 section, 150 internal bus

Claims (15)

a first receiving means for receiving designation of an existing circle;
a second receiving means for receiving designation of a position on the screen;
a third receiving means for receiving a designation of a radius from a user by an operation different from an operation for receiving designation of a position on the screen;
When the designated position received by the second reception means is inside the designated circle which is the circle whose designation is received by the first reception means, a circle inscribed in the designated circle, and the third Display a circle with a specified radius that is the specified radius received by the receiving means of
and control means for controlling to display a circle of the specified radius circumscribing the specified circle when the specified position is outside the specified circle. 2. The electronic device according to claim 1, wherein said third accepting means accepts a numerical input operation as designation of a radius. The control means further controls to display an input area for inputting the specified radius,
3. The electronic device according to claim 2, wherein said third accepting means accepts said numerical input operation to said input area as designation of a radius. 4. The electronic device according to claim 3, wherein said control means controls to display said input area in response to acceptance of designation of an existing circle by said first acceptance means. 2. The electronic device according to claim 1, wherein said second reception means receives designation of a position on the screen after said third reception means receives designation of a radius. When the first reception means receives the designation of an existing circle and the third reception means receives the designation of the radius, the control means moves the position of the mouse cursor with the position of the mouse cursor as the designated position. 2. The electronic device according to claim 1 , wherein control is performed so as to display the inscribed circle with the specified radius or the circumscribed circle with the specified radius at a dynamic position according to . After receiving the designation of the existing circle by the first reception means and the designation of the radius by the third reception means, in response to the click operation, the control means receives the click operation. 2. The electronic device according to claim 1, wherein control is performed so that the inscribed circle or the circumscribed circle is arranged as a constituent element of the drawing, with the position of the cursor when the cursor is pressed as the designated position. After arranging a first circle inscribed or a second circle circumscribing the designated circle according to the first click operation, the control means performs a second click operation without performing other operations. , the position specified by the second click operation is used as the specified position,
8. The electronic device according to claim 7 , wherein control is performed so as to dispose a third circle or a fourth circle circumscribing the designated circle. 8. The electronic device according to claim 7 , wherein the drawing is a CAD drawing. The control means displays, as the inscribed circle or the circumscribed circle, a circle having a center point on a straight line passing through the specified position and the center of the specified circle and having the specified radius. 2. The electronic device according to claim 1 , wherein the electronic device controls. 2. The electronic device according to claim 1, wherein said control means performs control so as to issue a notification prompting selection of a circle when designation of a figure other than an existing circle is accepted. a first receiving means for receiving designation of an existing circle;
a second receiving means for receiving designation of a position on the screen;
a third receiving means for receiving a designation of a radius from a user by an operation different from an operation for receiving designation of a position on the screen;
A circle having a center point on a straight line passing through the specified position accepted by the second acceptance means and the center of the specified circle, which is the circle whose specification is accepted by the first acceptance means, wherein the third and control means for controlling to display a circle having a designated radius which is a radius designated by a receiving means and which is tangent to the designated circle. A program for causing a computer to function as each means of the electronic device according to any one of claims 1 to 12 . a first receiving step for receiving designation of an existing circle;
a second reception step for receiving designation of a position on the screen;
a third receiving step of receiving a radius designation from the user by an operation different from the operation of receiving the position designation on the screen;
When the specified position accepted in the second accepting step is inside the specified circle, which is the circle specified in the first accepting step, the circle inscribed in the specified circle , the third Display a circle with a specified radius, which is the specified radius received in the acceptance step of
and a control step of controlling to display a circle of the specified radius circumscribing the specified circle when the specified position is outside the specified circle. a first receiving step for receiving designation of an existing circle;
a second reception step for receiving designation of a position on the screen;
a third receiving step of receiving a radius designation from the user by an operation different from the operation of receiving the position designation on the screen;
A circle having a center point on a straight line passing through the designated position received in the second receiving step and the center of the designated circle, which is the circle whose designation is received in the first receiving step, wherein the third A control method for an electronic device, comprising: a control step of controlling to display a circle having a designated radius which is a designated radius received by a receiving means and which is tangent to the designated circle.

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