JP5482696B2 - Display control apparatus, display control method, and program - Google Patents

Description

The present invention relates to a display control apparatus , a display control method, and a program for displaying an image on a display screen .

  Conventionally, various information terminal devices such as PCs (Personal Computers), PDAs (Personal Digital Assistants), multi-function small electronic calculators such as graph scientific calculators, and electronic game consoles have various items on the display screen. A cursor movement display function is provided for selecting a position, specifying a position, drawing a line segment, and the like.

  Such cursor movement display is usually performed according to a specified position by pen touch on a touch panel provided on the display screen, or according to a movement operation of a pointing device such as a mouse, It is performed according to the operation of the cursor key indicating the up, down, left, and right directions.

  In the case of small electronic calculators such as the above-mentioned graph scientific calculators, not only a small and easy-to-carry configuration is required, but it is also widely used as an educational device and is pursuing low prices. In many cases, a device has no device and the cursor on the display screen is exclusively operated according to the operation of the cursor key.

  On the other hand, in a graph scientific calculator having a conventional graph display function equipped with a touch panel, a scroll bar is displayed along the right edge and the lower edge of the display screen, and a cursor (pointer) displayed on the graph is displayed on the scroll bar. There is also considered one that moves and displays the graph according to the touch operation position and traces the graph (for example, see Patent Document 1).

JP 2004-094678 A

  As in the conventional graph scientific calculator, in the display control device in which the cursor (pointer) on the screen is moved and displayed by operating the cursor key or the scroll bar, the movement of the cursor (pointer) on the screen is Since the display is performed with the width of the display dot, fine and continuous moving display is possible, but there is a problem in that it cannot be moved to the target display position at a stretch and the operability is poor.

An object of the present invention is to provide a display control device , method, and program capable of easily changing the contents of an image displayed on a display screen .

Claim 1 of the present invention is a display control apparatus for displaying an image on a display screen, and in the case where the display screen is divided into a plurality of divided display areas, an instruction for any one of the divided display areas is provided. When an enlargement instruction operation is performed by designating a detection means for detecting an operation and a desired first divided display area on the display screen, the position of the designated first divided display area is displayed as an image. First display control means for enlarging as a center position when enlarging and displaying an image of the first divided display area after the enlargement display by the first display control means. when reduction instruction operation specifying divided display area is performed, the position of the designated second division display area, and a second display control means for reduced display as the center position when reduced display image , With And wherein the door.

According to the present invention, it is possible to easily change the contents of an image displayed in the display screen .

The block diagram which shows the structure of the electronic circuit of the electronic calculator (graph scientific calculator) 10 provided with the graph function function which concerns on embodiment of the display control apparatus of this invention. FIG. 2 is a front view showing an external configuration of the electronic calculator 10. It is a figure for demonstrating the cursor display function in the said electronic calculator 10, The figure (A) is a figure which shows the initial display state of the cursor K in the normal cursor mode which displayed the pointer icon Ip, The figure (B) ) Is a diagram showing the display area of each numeric key [n] and its cursor K in the numeric key cursor mode in which the numeric keypad linked cursor icon Ik is displayed. 7 is a flowchart showing cursor display control processing corresponding to key input of the electronic calculator 10; 10 is a flowchart showing a numeric keypad corresponding screen position calculation process accompanying a cursor display control process corresponding to a key input of the electronic calculator 10; Display of the cursor K in the [1: Move screen position] mode in the state where the information display area AI describing the contents related to the display screen data is displayed together on the display unit (display screen) 20 of the electronic calculator 10. The figure which shows operation | movement. The figure which shows the state which applied the jump movement display function of the cursor K by the [1: screen position movement] mode of the said electronic calculator 10 to line segment drawing. The figure which shows the state which applied the jump movement display function of the cursor K by the [1: screen position movement] mode of the said electronic calculator 10 to the vertex determination of a triangle drawing. The figure which shows the operation display state of the graph display screen (the 1) using the [3: zoom-in] mode of the said electronic calculator. The figure which shows the operation display state of the graph display screen (the 2) using the [4: zoom out] mode of the said electronic calculator. The figure which shows the operation display state of the graph display screen (the 3) using the [2: screen switching] mode of the said electronic calculator. The figure which shows the cursor movement display state at the time of operating [SHIFT] + cursor key 18k simultaneously in the [1: Screen position movement] mode of the said electronic calculator 10. FIG. The figure which shows the cursor movement display state when the display area of fixed width D is prescribed | regulated in the [1: screen position movement] mode of the said electronic calculator 10, and [SHIFT] + cursor key 18k is operated simultaneously. The figure which shows the cursor movement display state at the time of simultaneously operating the [SHIFT] + cursor key 18k which prescribes | regulated the priority of a figure data instruction | indication in the [1: screen position movement] mode of the said electronic calculator 10. FIG. The figure which shows the operation display state in the case of drawing a line segment using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator. The figure which shows the operation display state at the time of performing figure drawing using the jump movement display function of the cursor K according to the numeric keypad arrangement by the said electronic calculator. The figure which shows the operation display state at the time of performing a drawing figure deformation | transformation using the jump movement display function of the cursor K according to the numeric keypad arrangement | sequence by the said electronic calculator. The figure which shows the operation display state in the case of designating the operating point of a figure animation using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator. The figure which shows the operation display state in the case of performing figure area calculation using the jump movement display function of the cursor K according to the numeric keypad arrangement by the said electronic calculator.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an electronic circuit of an electronic calculator (graph scientific calculator) 10 having a graph function function according to an embodiment of a display control apparatus of the present invention.

  FIG. 2 is a front view showing an external configuration of the electronic calculator 10.

  The electronic calculator (graph scientific calculator) 10 includes a control unit (CPU) 11 that is a computer.

  The control unit (CPU) 11 is a system program stored in advance in the ROM 12 or a computer control program stored in the system area in the ROM 12 from the memory card 13 via the I / O port 14 or the I / O port 14. As a working memory (work memory), the DRAM 17 is downloaded from the Web server (program server) 16 on the communication network N connected via the external PC 15 and stored in the system area in the ROM 12. Controls the operation of each part of the circuit. The system program stored in advance in the ROM 12 and the computer control program read into the system area are activated in response to a key input signal from the keyboard 18.

  The computer control program stored in the ROM 12 includes a display control program for controlling the display operation over the entire operation of the electronic computer 10, and includes numerical values input by keys, Display of symbols, calculation formulas, graph drawing display, calculation result display, cursor (pointer) display / movement display, and the like are controlled.

  In addition to the ROM 12, the memory card 13, the I / O port 14, the DRAM 17, and the keyboard 18, the control unit (CPU) 11 is connected to a liquid crystal display unit (LCD) 20 through a liquid crystal driving circuit 19. The

  In the DRAM 17, in addition to a display data memory for storing various display data such as input formulas, calculation results, graphs, line segments, and figures to be displayed on the liquid crystal display unit 20, formula data memory for the individual data A calculation data memory, a graph data memory, a graphic data memory, etc., and a cursor position memory for storing the current coordinate position (X, Y) of the cursor (pointer) K that is moved and displayed on the display screen Is provided.

  As shown in FIG. 2, the main body case of the electronic calculator 10 is provided with a keyboard 18 in a range of about two thirds from the lower end of the front surface of the main body, and the liquid crystal display unit 20 in a range of about one third from the upper end. Is provided.

  When inputting a “MENU” key, numbers, and operators that are operated when displaying a large number of functions (applications) installed in the electronic calculator 10 as a menu screen for selecting functions in the key input unit 18. Numeric keypad / operator key operated, cursor key 18k for performing cursor movement operation and data selection operation on the display screen, and “EXIT” operated when instructing to return to or exit from the process being executed ”Key, the“ EXE ”key operated when instructing to confirm the selected data and executing the process, and the functions“ F1 to F1 ”selected and operated when activating various functions such as graph and graphic drawing display functions. A plurality of keys such as the “F6” key are arranged in a plane.

  FIG. 3 is a diagram for explaining a cursor display function in the electronic calculator 10, and FIG. 3A is a diagram showing an initial display state of the cursor K in the normal cursor mode in which the pointer icon Ip is displayed. FIG. 6B is a diagram showing the display area of each numeric key [n] and its cursor K in the numeric key cursor mode in which the numeric keypad cursor icon Ik is displayed.

  That is, as shown in FIG. 3A, in the normal cursor mode in which the pointer icon Ip is displayed, the cursor K on the display unit 20 is initially displayed at the center of the screen, and the user can select any of the up, down, left, and right users with the cursor key 18k. The display is moved and displayed in units of one display dot in accordance with a direction instruction input.

  In the ten-key cursor mode in which the ten-key interlocking cursor icon Ik is displayed, as shown in FIG. 3B, the arrangement of the keys of the numeric keys “1” to “9” on the keyboard 18 is displayed on the display screen of the cursor K. The cursor K on the display screen is jumped and displayed in the lower left area DL of the screen when the numeric key “1” is operated and input, and “2” is input. The jump movement is displayed in the lower area DC of the screen. When “3” is input, the jump movement is displayed in the lower right area DR of the screen. When “4” is input, the jump movement is displayed in the left area CL of the screen. When “5” is input, a jump movement is displayed in the center area CC of the screen. When “6” is input, a jump movement is displayed in the right area CR of the screen. When “7” is input, the jump movement is displayed in the left area UL on the screen. When “8” is input, the jump movement is displayed in the middle area UC on the screen. A jump movement is displayed in the right area UR.

  Next, a cursor display control function by the electronic calculator 10 having the above-described configuration will be described.

  FIG. 4 is a flowchart showing cursor display control processing corresponding to the key input of the electronic calculator 10.

  FIG. 5 is a flowchart showing a numeric keypad screen position calculation process associated with the cursor display control process corresponding to the key input of the electronic calculator 10.

  When a mode setting screen is displayed on the liquid crystal display unit 20 in response to a mode setting key operation on the keyboard 18 (see FIG. 2), in this mode setting screen, various display control mode headings relating to the cursor K on the display screen are displayed. For example, [1: screen position movement] [2: screen switching] [3: zoom in] [4: zoom out] is displayed (steps S1 to S3).

  In this mode setting screen, [1: Move screen position] displays the cursor K in a jump area in the display area on the display screen corresponding to the position of the numeric keypad in accordance with the operation of the numeric keys “1” to “9”. Display control mode, [2: screen switching] is a display control mode for switching and displaying the display screen in the direction according to the arrangement position of the numeric keypad according to the operation of the numeric keys “1” to “9”, [3: Zoom in] is a display control mode for enlarging display centered on the display screen area corresponding to the position of the numeric keypad according to the operation of the numeric keys “1” to “9”, [4: Zoom. “Out” is a display control mode for performing a reduced display centering on the display screen area corresponding to the arrangement position of the numeric keys in response to the operation of the numeric keys “1” to “9”.

  When the user-desired display control mode is selected by operating the keyboard 18 on the mode setting screen, the selected display control mode is set (step S4).

  When the cursor key 18k is directly operated regardless of whether or not the display control mode desired by the user is set according to the mode setting screen (step S5), the cursor K on the display screen in the display unit 20 is The display is moved and displayed in the direction indicated by the cursor key 18k with the width of the display dot (step S6).

  When any of the numeric keys “1” to “9” is operated (step S7), when it is determined that the current display control mode is “1: screen position movement” (step S8), FIG. 5 shifts to the numeric keypad corresponding screen position calculation processing in step 5 (step SA).

  FIG. 6 is a diagram in the [1: Move screen position] mode in which the information display area AI describing the contents related to the display screen data is displayed on the display unit (display screen) 20 of the electronic calculator 10 together. It is a figure which shows the display operation of the cursor K. FIG.

  When the numeric keypad corresponding screen position calculation process in FIG. 5 is started, it is first determined whether or not the information display area AI is displayed on the display unit (display screen) 20 (step A1).

  If it is determined that the information display area AI is not displayed (step A1 (No)), the movement display range maxY in the Y direction of the cursor K is equal to the screen height of the display unit (display screen) 20. It is set (step A2).

  On the other hand, as shown in FIG. 6, when it is determined that the information display area AI is displayed (step A1 (Yes)), the movement display range maxY in the Y direction of the cursor K is displayed on the display unit (display screen). ) It is set to a value obtained by subtracting the height of the information display area AI from the screen height of 20 (step A3).

  The screen position in the X direction corresponding to the numeric key operated this time is calculated according to the following formulas (1) and (2) (step A4), and the screen position in the Y direction is calculated by the following formulas (3) and (4). (Step A5).

tmpX = mod (pressed numeric keypad value-1, 3) Expression (1)
X = tmpX * (screen width / 3) + (screen width / 6) Formula (2)
tmpY = (pressed numeric keypad value -1) / 3 (3)
Y = maxY − ((tmpY + 1) * (maxY / 3)) + (maxY / 6) Equation (4)
That is, according to the above formulas (1) to (4), in the range of the screen width x screen height (maxY) in which the cursor K can be moved and displayed, the width corresponding to the arrangement position of the numeric keys “1” to “9”. The XY coordinates of the approximate center of the divided area corresponding to the pressed numeric keypad are calculated for 9 divided areas of 3 divided by 3 vertically (see FIG. 3B).

  For example, as shown in FIG. 6, when the numeric keypad “5” is operated, the center coordinates of the screen center area CC within the screen range excluding the information display area AI are calculated (step SA), and the screen center The cursor K is jump displayed with respect to the area CC (step S9).

  FIG. 7 is a diagram showing a state in which the jump movement display function of the cursor K in the [1: screen position movement] mode of the electronic calculator 10 is applied to line segment drawing.

  For example, as shown in FIG. 7A, in the [1: Move screen position] mode, when the numeric key “4” [EXE] is input while the line segment AB is drawn and displayed, the cursor K Is displayed as a jump movement in the left area CL of the screen on the display unit (display screen) 20.

  Subsequently, as shown in FIG. 7B, when the numeric keypad “9” [EXE] is input, the cursor K is jumped from the left area CL in the screen to the right area UR on the screen, and the line segment is displayed. A line segment L1 connecting the cursor movement display areas CL-UR in parallel with A-B is drawn and displayed easily and at once.

  Further, as shown in FIG. 7A, after the cursor K is jump-moved and displayed on the left area CL in the screen on the display unit (display screen) 20, subsequently, as shown in FIG. 7C. When the numeric keypad “3” [EXE] is entered, the cursor K jumps and displays from the left area CL in the screen to the lower right area DR of the screen, and crosses the line segment AB and displays the movement of each cursor. A line segment L2 connecting CL-DR between areas is drawn and displayed easily and at once.

  FIG. 8 is a diagram showing a state in which the jump movement display function of the cursor K in the [1: screen position movement] mode of the electronic calculator 10 is applied to the determination of the vertices of the triangle drawing.

  For example, as shown in FIG. 8A, in the [1: Move screen position] mode, when the numeric key “7” [EXE] is input while the base AB is drawn and displayed, the cursor K is A jump movement is displayed in the upper left area UL of the screen on the display unit (display screen) 20, the vertex C is determined, and the triangles A, B, C are drawn and displayed easily and at once.

  Subsequently, as shown in FIG. 8B, when the numeric keypad “8” [EXE] is input, the cursor K is displayed jumping from the upper left area UL on the screen to the upper middle area UC on the screen. Thus, the triangles A, B, and C in which only the position of the vertex C is changed are drawn and displayed easily and at once.

  Subsequently, as shown in FIG. 8 (C), when the numeric keypad “9” [EXE] is entered, the cursor K jumps and displays from the middle area UC on the screen to the right area UR on the screen. Accordingly, the triangles A, B, and C in which the position of the vertex C is further changed are drawn and displayed easily and at once.

  On the other hand, when any of the numeric keys “1” to “9” is operated (step S7), when it is determined that the current display control mode is [3: zoom in] (step S8), An enlarged display process centering on the screen area on the display unit (display screen) 20 corresponding to the operated numeric keypad array position (“1: DL” to “9: UR”) is performed (steps S8 → S11). .

  When any of the numeric keys “1” to “9” is operated (step S7), when it is determined that the current display control mode is [4: zoom out] (step S8), Reduced display processing is performed centering on the screen area on the display unit (display screen) 20 corresponding to the operated numeric keypad arrangement positions (“1: DL” to “9: UR”) (steps S8 → S12). ).

  Further, when any of the numeric keys “1” to “9” is operated (step S7), when it is determined that the current display control mode is [2: screen switching] (step S8), Depending on the direction in which the operated numeric keypad is arranged, the screen following that direction is switched and displayed instead of the current display screen (steps S8 → S10).

  FIG. 9 is a diagram showing an operation display state of the graph display screen (part 1) using the [3: zoom in] mode of the electronic calculator 10.

  FIG. 10 is a diagram showing an operation display state of the graph display screen (part 2) using the [4: zoom out] mode of the electronic calculator 10.

  FIG. 11 is a diagram showing an operation display state of the graph display screen (part 3) using the [2: screen switching] mode of the electronic calculator 10.

For example, as shown in FIG. 9A, graphs Y1 and Y2 corresponding to two input function formulas Y1 = X ² and Y2 = X + 1 are displayed on the display unit (display screen) 20 in accordance with the operation of the [DRAW] key. 9B, when the [3: zoom in] mode is set and the numeric key [9] is operated, as shown in FIG. 9B, a display screen (in accordance with the arrangement position of the numeric key “9”) ( 20) The enlarged display centering on the upper right area UR (see FIG. 9A) is performed.

  After the enlarged display according to the position of the numeric keypad “9” is made, as shown in FIG. 9C, when the [Trace] key is operated, the trace pointer P is displayed on the graph Y1 specified by the user. At the same time, the pointer P is moved and displayed by one dot in a direction corresponding to the operation of the cursor key 18k in an arbitrary direction, and the X coordinate value and the Y coordinate value are simultaneously displayed.

  As shown in FIG. 9B, in the state in which the upper right area UR is enlarged in response to the operation of the numeric keypad “9” in the [3: zoom in] mode, as shown in FIG. When the [4: Zoom out] mode is set and the numeric keypad [9] is operated, a reduced display centering on the upper right area UR on the display screen (20) corresponding to the arrangement position of the numeric keypad “9” is displayed. Then, the original graph display state before [Zoom In] shown in FIG.

  Subsequently, as shown in FIG. 10E, when the [3: zoom in] mode is set and the numeric key [2] is operated, the display screen (20) corresponding to the arrangement position of the numeric key “2” is displayed. An enlarged display centering on the lower middle area DC (see FIG. 10D) is performed.

  After the enlarged display corresponding to the position of the numeric keypad “2” is made, as shown in FIG. 10F, when the [Trace] key is operated, the trace pointer P is displayed on the graph Y1 designated by the user. At the same time, the pointer P is moved and displayed by one dot in a direction corresponding to the operation of the cursor key 18k in an arbitrary direction, and the X coordinate value and the Y coordinate value are simultaneously displayed.

  Further, as shown in FIG. 10 (E), an enlarged display centering on the lower middle area DC (see FIG. 10 (D)) on the display screen (20) corresponding to the position of the numeric keypad “2” is displayed. In the state of being performed, as shown in FIG. 11 (G), the [2: screen switching] mode is set, and the numeric keypad [2] that indicates the enlarged screen lower middle area DC is set to the upper side. When the adjacent numeric key “5” is operated, the enlarged graph screen of the central area CC corresponding to the numeric key “5” is switched and displayed.

  Subsequently, as shown in FIG. 11H, when the numeric key “2” positioned below the numeric key [5] indicating the enlarged screen center area CC is operated, The display is switched to the enlarged graph screen of the lower middle area DC corresponding to “2”.

  After the enlarged display corresponding to the position of the numeric keypad “2” is made, as shown in FIG. 11I, when the [Trace] key is operated, the trace pointer P is displayed on the graph Y1 designated by the user. At the same time, the pointer P is moved and displayed by one dot in a direction corresponding to the operation of the cursor key 18k in an arbitrary direction, and the X coordinate value and the Y coordinate value are simultaneously displayed.

  FIG. 12 is a diagram showing a cursor movement display state when the [SHIFT] + cursor key 18k is simultaneously operated in the [1: screen position movement] mode of the electronic calculator 10. FIG.

  For example, as shown in FIG. 12A, in the state where a plurality of figures are displayed on the display unit (display screen) 20 and the cursor K is displayed, the [1: move screen position] mode is set. As shown in FIG. 12B, when [SHIFT] + cursor key [↓] 18k on the keyboard 18 is operated simultaneously (step S13), the designated direction [↓] by the cursor key [↓] 18k is set. ] Is displayed in the display screen area (in this case, “lower right area DR”) (step S14).

  If it is determined that the graphic data OBJ1 is drawn in the display screen area “lower right area DR” in the direction [↓] specified by the cursor key 18k from the cursor K being displayed, the graphic data is displayed. The cursor K is jump-moved and displayed at the position of OBJ1, and the figure OBJ1 is highlighted and identified, for example (step S15).

  Subsequently, when the numeric key “4” is operated as shown in FIG. 12C in the state where the [1: screen position movement] mode is still set (step S7), the numeric keypad in FIG. The screen position coordinates corresponding to the numeric keypad “4” are calculated by the corresponding screen position calculation process (step S8 → SA), and the cursor K is jump-moved and displayed in the middle left area CL on the display unit (display screen) 20 ( Step S9).

  Here, as shown in FIG. 12D, when [SHIFT] + cursor key [↑] 18k on the keyboard 18 is operated simultaneously (step S13), the cursor K being displayed in the left area CL of the screen is displayed. Is determined that the graphic data OBJ2 is drawn in the display screen area “upper left area UL” in the direction [↑] specified by the cursor key 18k (step S14), and the cursor K is positioned at the position of the graphic data OBJ2. The jump movement is displayed (step S15).

  On the other hand, even when [SHIFT] + cursor key [↑] 18k on the keyboard 18 is operated simultaneously in the setting state of the [1: screen position movement] mode (step S13), designation by the cursor key 18k is performed. When it is determined that the graphic data OBJn does not exist in the display screen area in the direction (step S14 (No)), the moving display of the cursor K is not performed (step S16).

  In the function of jump movement display between the graphic data of the cursor K by the [SHIFT] + cursor key 18k in the [1: screen position movement] mode, for example, as shown in FIG. 13, the current position of the cursor K is used as a reference. A display area with a constant width D may be defined, and the jump movement display of the cursor K may be performed only for the display area with the constant width D.

  FIG. 13 is a diagram showing a cursor movement display state when a display area having a constant width D is defined in the [1: screen position movement] mode of the electronic calculator 10 and [SHIFT] + cursor keys 18k are operated simultaneously. .

  According to this, each time the [SHIFT] + cursor key [←] 18k is operated simultaneously, the cursor K is sequentially displayed in the specified direction [←] of the cursor key 18k within the fixed width D. The graphic data OBJ1, OBJ2 , OBJ3, jump movement display is sequentially displayed as indicated by arrows a, b, c.

  Further, for example, as shown in FIG. 14, when the [SHIFT] + cursor key 18k is simultaneously operated in the [1: Move screen position] mode, a plurality of graphic data OBJ2 are placed at the same position in the designated direction of the cursor key 18k. , OBJ3, it is possible to preferentially define any one of the upper and lower same positions, or any one of the left and right same positions, and sequentially move and display the cursor K.

  FIG. 14 is a diagram showing a cursor movement display state when the priority order of the graphic data instruction is specified and the [SHIFT] + cursor key 18k is simultaneously operated in the [1: screen position movement] mode of the electronic calculator 10. .

  According to this, every time [SHIFT] + cursor key [←] 18k is operated simultaneously, the cursor K applies to each graphic data OBJ2, OBJ3 existing at the same position in the designated direction [←] of the cursor key 18k. The graphic data OBJ2 on the upper side is displayed in jump movement as indicated by arrows a and b with the movement priority order.

  Next, the jump movement display control function (FIGS. 4 and 5) of the cursor K according to the numeric keypad arrangement by the electronic calculator 10 is used for a series of line drawing, figure drawing, drawing figure deformation, figure animation, figure area calculation. The case where it applies to this process is demonstrated with reference to FIGS.

  FIG. 15 is a diagram showing an operation display state when line segment drawing is performed using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator 10.

  As shown in FIG. 15A, when the numeric key “9” on the keyboard 18 is operated, the cursor K jumps to the right area UR on the screen, and the [F3] key (menu display), the cursor key [↓ 18k (menu selection), the line segment drawing mode is set by operating the [EXE] key, and the drawing start point of the line segment is determined at the position of the cursor K moved and displayed in the right area UR on the screen. .

  Then, as shown in FIG. 15B, when the numeric keypad “2” is operated, the cursor K is displayed as a jump movement from the upper right area UR to the lower middle area DC of the screen as the line segment start point. Then, the line segment according to the movement trajectory is drawn and displayed, and as shown in FIG. 15C, the line segment AB is determined and displayed in accordance with the operation of the [EXE] key.

  FIG. 16 is a diagram showing an operation display state when drawing a graphic using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator 10.

  In the state where line segment AB is drawn and displayed by line drawing in FIG. 15, as shown in FIG. 16A, [F3] key (menu display), cursor key [↓] 18k (menu selection) The triangle drawing mode is set by operating the [EXE] key, and when the numeric key “7” and the [EXE] key are operated as shown in FIG. 16B, the cursor K is moved to the left area UL on the screen. The first point of the triangle to be moved and displayed and drawn and displayed is set.

  Then, as shown in FIG. 16C, when the numeric keypad “5” is operated, the cursor K is jump-moved and displayed from the left upper area UL on the screen as the first vertex of the triangle to the screen central area CC. A rectangular line whose diagonal is the movement source position and the movement destination position of the cursor K is drawn and displayed.

  Then, as shown in FIG. 16D, by repeatedly operating the cursor key [→] 18k, the cursor K jump-displayed in the center area CC of the screen is moved and displayed on the line segment AB. As shown in FIG. 16E, when the [EXE] key is operated, the designated point of the cursor K moved and displayed on the line segment AB is determined as the vertex E, and the triangle CDE is drawn and displayed. Is done.

  FIG. 17 is a diagram showing an operation display state when the drawing figure is deformed by using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator 10.

  In the state in which the triangle CDE is drawn and displayed by drawing the triangular figure in FIG. 16, the numeric key “4” is used to move the first vertex C on the left area CL in the screen, as shown in FIG. Is operated, the cursor K jumps and displays on the left area CL in the screen, and the first vertex C is selected. As shown in FIG. 17B, the operation of the [X, θ, T] key is performed. Accordingly, the first vertex C is grasped and displayed.

  Here, as shown in FIG. 17C, when the numeric key “1” is operated, the cursor K displayed in the grasping process is jump-moved and displayed in the lower left area DL of the screen.

  Then, as shown in FIG. 17D, when the [EXE] key is operated, the first vertex C of the triangle CDE is decided to move to the position of the cursor K displayed jump-moved in the lower left area DL of the screen. The displayed figure is deformed.

  FIG. 18 is a diagram showing an operation display state when operating points of a graphic animation are specified using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator 10.

  In order to designate the third vertex E on the line segment AB as the operating point of the graphic animation in the drawing display state of the triangle CDE in which the first vertex C is moved and displayed by the deformation of the triangular figure in FIG. As shown in FIG. 18 (A), when the numeric key “2” is operated, the cursor K is first jump-moved and displayed on the area DC at the bottom of the screen, and the cursor key 18k is repeatedly operated on the line segment AB. Is displayed.

  Further, as shown in FIG. 18 (B), the cursor K on the line segment AB is moved and displayed by the repeated operation of the cursor key 18k, and the third vertex E is selected and displayed. As shown in FIG. 5, the object to be animated is set by operating the [F6] key (animation menu display) and the [EXE] key.

  Then, as shown in FIG. 18D, the execution of the animation is instructed by operating the [F6] key (animation menu display) and the numeric keypad “5”, and the third vertex E of the triangle CDE becomes the line segment A−. A graphic animation that is sequentially moved and displayed on B is displayed.

  FIG. 19 is a diagram showing an operation display state when the graphic area is calculated using the jump movement display function of the cursor K according to the numeric keypad arrangement by the electronic calculator 10.

  In the state where the third vertex E of the triangle CDE is sequentially moved and displayed on the line segment AB by the graphic animation display in FIG. 18, the numeric key “8” is operated as shown in FIG. Then, the cursor K jumps to the middle area UC on the screen, and a part of the triangular figure in the area UC is designated, and the triangle CDE designated by the cursor K by the operation of the [EXE] key is displayed. Selected and displayed.

  Then, as shown in FIG. 19B, the area measurement box along the lower end of the screen is displayed by operating the [VARS] key, and the cursor key 18k is selectively operated as shown in FIG. 19C. Thus, the addition of the area data measured and displayed in the area measurement box to the table is instructed, and as shown in FIG. 19D, the third vertex E of the triangle CDE is operated by operating the [EXE] key. Each calculated area data DM is displayed in a list in a state where is sequentially displayed on the line segment A-B.

  Thereafter, as shown in FIG. 19 (E), the store to List [1] is instructed by the operation of the [F1] key, the numeric keypad “1”, and the [EXE] key, as shown in FIG. 19 (F). , The List Editor is activated by the operation of the [MENU] key, and each area data DM accompanying the animation display of the triangle CDE stored in List [1] is confirmed.

  Therefore, according to the cursor display control function by the electronic computer 10 having the above-described configuration, the liquid crystal display corresponding to the arrangement positions of the ten keys “1” to “9” arranged in a 3 × 3 matrix on the keyboard 18. Each area DL, DC, DR, CL, CC, CR, UL, UC, UR obtained by dividing the display screen in the section 20 into 9 in a 3 × 3 matrix is set. Since the cursor (pointer) K is jumped and displayed in the screen position area corresponding to the operation, the cursor K on the display screen is made to correspond to the desired screen position without being continuously moved by the operation of the cursor key 18k. The cursor K can be jump-moved and displayed at a stroke with a single key touch simply by operating the numeric keypad.

  Further, according to the cursor display control function by the electronic computer 10 having the above-described configuration, when any information display area AI is displayed on the display screen, the numeric keypad is used in the remaining screen area excluding the information display area AI. Each of the nine divided areas DL, DC, DR, CL, CC, CR, UL, UC, and UR corresponding to the arrangement positions of “1” to “9” is set, and the cursor is moved in accordance with the numeric keypad operation as described above. Since the display control is performed, in this case as well, the cursor K on the display screen is not moved continuously by the operation of the cursor key 18k, and only the numeric keypad operation corresponding to the desired screen position is performed. With this, the cursor K can be displayed jumping at once.

  Further, according to the cursor display control function by the electronic computer 10 having the above-described configuration, in each mode of [3: zoom in] or [4: zoom out], enlargement display control is performed around the screen position area corresponding to the numeric keypad operation. Alternatively, since the reduction display control is performed, the desired enlargement / reduction target position is designated by one key touch without designating the enlargement / reduction target position by the continuous movement display of the cursor K by the operation of the cursor key 18k. Can be enlarged / reduced.

  Further, according to the cursor display control function by the electronic computer 10 having the above-described configuration, in the [2: Screen switching] mode, the screen data in the direction specified by the numeric keypad operation is switched and displayed with respect to the screen data currently being displayed. As a result, it is possible to easily switch and display the display screen by designating a desired direction by one-key touch using the numeric keys “1” to “9”.

  Further, according to the cursor display control function by the electronic calculator 10 having the above-described configuration, when the [SHIFT] key + cursor key 18k is operated in the [1: screen position movement] mode, the current cursor K display position is changed. The presence of the graphic data in the specified direction by the cursor key 18k is determined, and the cursor K is jump-displayed with respect to the graphic data, so that arbitrary graphic data on the display screen can be easily specified and displayed.

  In the above embodiment, the numeric keys “1” to “9” provided on the keyboard 18 of the electronic calculator (graph scientific calculator) 10 have been described. However, the numeric keys “1” to “9” are arranged in a matrix. In the case of an arranged keyboard (key input device), for example, numeric keys “1” to “9” provided on a keyboard of a mobile phone may be used regardless of the arrangement positions of the individual numbers.

  In the embodiment, the position on the display screen corresponding to each arrangement position of the numeric keys is determined by calculation processing. However, the position on the display screen of the display unit 20 corresponding to each arrangement position of the numeric keys is previously set. The position may be stored in the key corresponding position table, and the cursor may be displayed at the position read from the table in accordance with the input key. Furthermore, if different key-corresponding position tables are stored depending on whether menu information is displayed or not displayed in the lower row, keys from different tables are used depending on whether the menu information is present or not. The corresponding position can be read and the position on the screen can be determined appropriately.

  Each processing method by the electronic calculator (graph scientific calculator) 10 described in the above embodiment, that is, cursor display control processing corresponding to key input shown in the flowchart of FIG. 4, and numeric keypad corresponding screen position calculation shown in the flowchart of FIG. Each method in processing is a program that can be executed by a computer, such as a memory card (ROM card, RAM card, etc.), a magnetic disk (floppy disk, hard disk, etc.), an optical disk (CD-ROM, DVD, etc.), It can be stored and distributed in an external recording medium (13) such as a semiconductor memory. Various computer terminals including the numeric keypad input device (18) and the display device (20) read the program stored in the external recording medium (13) into the storage device (12), and operate according to the read program. Is controlled, the cursor display control function described in the embodiment can be realized, and the same processing by the above-described method can be executed.

  Further, program data for realizing each of the above methods can be transmitted on a communication network (Internet) N as a program code form, and a computer terminal (program server) connected to the communication network (Internet) N The above-described cursor display control function can be realized by fetching the program data from 16).

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment or some constituent features are combined, the problem described in the column of the problem to be solved by the invention can be solved. When the effect described in the column of effect is obtained, a configuration in which this constituent requirement is deleted or combined can be extracted as an invention.

10 ... Electronic calculator (graph calculator)
11: Control unit (CPU)
12… ROM
13 ... Memory card (external recording medium)
14… I / O port 15… External PC
16: Web server (program server)
17 ... DRAM
18 ... Keyboard 18k ... Cursor key 19 ... Liquid crystal drive circuit 20 ... Liquid crystal display (LCD)
N ... Communication network (Internet)
K ... cursor

Claims (6)

A display control device for displaying an image on a display screen,
When the display screen is divided into a plurality of divided display areas, detection means for detecting an instruction operation for any of the divided display areas;
When an enlargement instruction operation is performed by designating a desired first divided display area in the display screen, the position of the designated first divided display area is the center position when the image is enlarged and displayed. First display control means for enlarged display as
After the enlarged display of the image in the first divided display area by the first display control means, when a reduction instruction operation is performed by designating an arbitrary second divided display area in the display screen, the designation It has been the position of the second divided display area, and a second display control means for reduced display as the center position when reduced display an image,
A display control apparatus comprising: When a screen switching instruction operation is performed on the desired third divided display area in the display screen after the first display control means enlarges and displays the image in the display area, Third display control means for switching to an enlarged display of an image adjacent to the image to be enlarged and corresponding to the third divided display area;
The display control apparatus according to claim 1 , further comprising: The direction corresponding to the third divided display area is a direction according to the direction of the third divided display area with respect to the first divided display area instructed immediately before the instruction operation for the third divided display area.
The display control apparatus according to claim 2 . The enlargement instruction operation is an instruction operation for zooming in on an image in the first display area where the instruction operation has been performed,
The reduction instruction operation is an instruction operation for zooming out display in a display area corresponding to the second position where the instruction operation is performed.
The display control device according to any one of claims 1 to 3, characterized in that. A display control method for controlling a computer of a display control device that displays an image on a display screen,
The computer,
Detecting means for detecting an instruction operation for any one of the divided display areas when the display screen is divided into a plurality of divided display areas;
When an enlargement instruction operation is performed by designating a desired first divided display area in the display screen, the position of the designated first divided display area is the center position when the image is enlarged and displayed. First display control means for enlarging and displaying as
After the enlarged display of the image in the first divided display area by the first display control means, when a reduction instruction operation is performed by designating an arbitrary second divided display area in the display screen, the designation has been the position of the second divided display area, the second display control means for reducing the display as the center position when reduced display an image,
The display control method that made it function as. A program for controlling a computer of a display control device that displays an image on a display screen,
The computer,
Detecting means for detecting an instruction operation for any one of the divided display areas when the display screen is divided into a plurality of divided display areas;
When an enlargement instruction operation is performed by designating a desired first divided display area in the display screen, the position of the designated first divided display area is the center position when the image is enlarged and displayed. First display control means for enlarging and displaying as
After the enlarged display of the image in the first divided display area by the first display control means, when a reduction instruction operation is performed by designating an arbitrary second divided display area in the display screen, the designation has been the position of the second divided display area, the second display control means for reducing the display as the center position when reduced display an image,
A computer-readable program designed to function as a computer.

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