JP2016177835A - Graphic drawing device, graphic drawing method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly draw and display a desired graphic by an intuitive and straight touch operation of a user in a graphic drawing device.SOLUTION: In a touch panel display unit, when positions that correspond to a plurality of feature points according to a graphic desired by a user are touched (S1, S3, and S22), and the touch positions are moved according to a shape of the graphic (S4 and S23) and touch is temporarily released and a different position is touched (S10, S11, and S15), feature conditions of various graphics (a circle, parallel lines, a regular triangle, a triangle, a square, a rectangle, a quadrangle, a straight line, a concentric circle, an ellipse, and the like) are determined according to the plurality of touched touch positions, a locus of movement of the touch positions, and an additional touch position (S5, S7, S12, S15, S16, S18, and S24), and a type and a drawing position of the graphic is determined. A basic graphic of a corresponding type is then read out from a drawing graphic database according to the determined type and drawing position of the graphic, and size of the basic graphic is adjusted and displayed as a drawing at the drawing position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a figure drawing apparatus for drawing a figure arbitrary by a user and a control program therefor.

  Conventionally, as a device for inputting an arbitrary figure in response to a user operation, a touch panel type display unit has been provided, and by touching the touch panel directly with a user's finger and operating, the figure corresponding to the touch operation is input. A system for displaying is considered (for example, see Patent Document 1).

  In this conventional input display system, when a finger is moved while touching one point on the touch panel display unit, a handwritten figure corresponding to the movement locus is drawn and displayed. Then, in a state where a handwritten figure is displayed, a deformation mode is set, and the figure can be deformed and displayed in a desired shape by moving while touching a plurality of points of the figure.

JP 2011-22964 A

  In the conventional input display system, although a handwritten figure can be drawn and displayed by a touch operation, in order to display a regular figure such as a perfect circle, a regular triangle, or a square, a deformation mode is set and the handwritten figure is displayed. Each point must be moved while touching a plurality of points to deform the figure.

  For this reason, it is necessary to perform a two-stage operation of an input operation of a handwritten graphic and a deformation operation of the input handwritten graphic until a regular graphic desired by the user is displayed. .

  The present invention has been made in view of such a problem, and provides a graphic drawing apparatus and a control program thereof that can quickly draw and display a desired graphic by a user's intuitive and straightforward touch operation. For the purpose.

  The figure drawing apparatus according to the present invention includes a touch panel, a display unit, touch position detecting means for detecting a touch position corresponding to a user operation on the touch panel, and a plurality of touch positions detected by the touch position detecting means. A touch movement determination unit that determines whether or not the touch position has been moved; and a touch position that is detected by the touch position detection unit when the touch movement determination unit determines that the touch position has been moved. Touch change determination means for determining the subsequent change of the touch, the touch position detected by the touch position detection means and the type of the figure according to the subsequent change of the touch position determined by the touch change determination means Graphic drawing determination means for determining the drawing position, the type of graphic determined by the graphic drawing determination means, and the drawing position In response, the graphic coordinates are displayed by the graphic display control means for displaying the graphic on the display section, the coordinate display determining means for determining whether or not the graph coordinates are displayed on the display section, and the coordinate display determining means. When it is determined that the touch position detected by the touch position detecting means has been moved by the touch movement determining means, the movement locus of the touch position satisfies the condition of the Nth order curve. An N-order curve condition determining unit that determines whether or not the condition is satisfied, and the touch movement determining unit detects the touch position detecting unit in a state where the graph coordinates are determined to be displayed by the coordinate display determining unit. When it is determined that the touch position has been moved, the sine wave curve condition for determining whether the movement locus of the touch position satisfies the sine wave curve condition Cutting means, and when the N-th order curve condition determining means determines that the N-th order curve condition is satisfied, the figure drawing determining means determines the shape of the figure as an N-th order curve and determining the sine wave curve condition. When it is determined by the means that the condition of the sine wave curve is satisfied, the type of the figure is determined as a sine wave curve, and the drawing position thereof is determined as a position corresponding to the movement locus. Yes.

  According to the present invention, it is possible to quickly draw and display a desired graphic by a user's intuitive and straightforward touch operation.

The block diagram which shows the structure of the electronic circuit of touchscreen PDA10 which concerns on embodiment of the figure drawing apparatus of this invention. The flowchart which shows the figure drawing process (the 1) by the said touchscreen PDA10. The flowchart which shows the figure drawing process (the 2) by the said touchscreen PDA10. The flowchart which shows the figure drawing process (the 3) by the said touchscreen PDA10. The figure which shows operation description screen G for users displayed on the touch panel type color display part 17 with the starting of the figure drawing process by the said touch panel type PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in the case of drawing and displaying the circle C according to the figure drawing process by the said touch panel type PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in the case of drawing and displaying the parallel line PL according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in the case of drawing and displaying the equilateral triangle TR according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in case the square RS is drawn and displayed according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in the case of drawing and displaying the straight line SL according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation on the figure input screen GF according to touch operation in the case of drawing and displaying the concentric circle CC according to the figure drawing process by the said touch panel type PDA10. The figure which shows the display operation (the 1) on the figure input screen GF according to touch operation in the case of drawing-displaying combining the parallel line PL, the triangle TR, and the circle C according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation (the 2) on the figure input screen GF according to touch operation in the case of drawing-displaying combining the parallel line PL, the triangle TR, and the circle C according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation (the 3) on the figure input screen GF according to touch operation in the case of drawing-displaying combining the parallel line PL, the triangle TR, and the circle C according to the figure drawing process by the said touchscreen PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in the case of drawing and displaying the graph y of a Nth-order curve according to the figure drawing process by the said touch panel type PDA10. The figure which shows the display operation in the figure input screen GF according to touch operation in the case of drawing and displaying the sine wave hyperbola graph y1, y2 according to the figure drawing process by the said touch panel PDA10.

  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 a touch panel PDA 10 according to an embodiment of a graphic drawing apparatus of the present invention.

  This graphic drawing apparatus is configured as a touch panel PDA (personal digital assistants) 10 equipped with a graphic drawing function described below, or as a PC (personal computer), a mobile phone, a portable game machine, or the like.

  The PDA 10 is configured by a computer that reads a program stored in various storage media or a transmitted program and whose operation is controlled by the read program. The electronic circuit includes a CPU (central processing unit). ) 11 is provided.

  The CPU 11 is a device control program stored in the memory 12 in advance, or a device control program read from the external storage medium 13 such as a ROM card into the memory 12 via the storage medium read / write unit 14 or a Web on the Internet N. The operation of each part of the circuit is controlled according to a device control program read into the memory 12 from the server (in this case, a program server) via the communication control unit 15.

  The device control program stored in the memory 12 is a key input signal corresponding to a user operation from the key input unit 16, a touch input signal corresponding to a user operation from the touch panel type color display unit 17, or a communication control unit 15. Communication signal with each Web server on the Internet N connected via the Internet, or connection communication with a memory card (storage medium) 13 such as EEPROM, RAM, ROM, etc. externally connected via the storage medium read / write unit 14 It is activated in response to a signal.

  Thus, the CPU 11 is connected to the memory 12, the storage medium read / write unit 14, the communication control unit 15, the key input unit 16, the touch panel type color display unit 17, and the like.

  Examples of the device control program stored in the memory 12 include a system program that controls the overall operation of the PDA 10, Web servers on the Internet N via the communication control unit 15, and a user PC (Personal Computer) (not shown). In addition to storing communication programs for data communication, various application programs stored in advance or downloaded from the outside, such as mail function, recording / playback function, recording / playback function, document processing function, schedule management function, etc. Is memorized.

  In the memory 12, a graphic drawing processing program 12a for realizing the graphic drawing function according to the present embodiment, and a character recognition for executing character recognition processing for handwritten characters in accordance with the execution of the graphic drawing processing program 12a. A processing program 12b is stored.

  Further, in the memory 12, various basic figures (straight lines, parallel lines, triangles, equilateral triangles, quadrilaterals, rectangles, squares, circles, concentric circles, ellipses, first-order curves, quadratic curves, 2) A drawing graphic database 12c for storing a next curve, a sine wave curve, a sine wave hyperbola, etc.) is prepared, and a touch position memory 12d, a drawing data registration memory 12e, a work area 12f, etc. are secured as other work areas.

  In the touch position memory 12d, the coordinates and locus data of the touch position detected according to the user's touch operation on the touch panel of the touch panel type color display unit 17 are updated and stored in real time.

  In the drawing data registration memory 12e, data of the entire drawing screen displayed by drawing on the touch panel type color display unit 17 in accordance with the drawing processing program 12a is registered.

  In the touch panel type PDA 10 configured in this way, the CPU 11 controls the operation of each part of the circuit in accordance with instructions described in the graphic drawing processing program 12a and the character recognition processing program 12b, and the software and hardware cooperate. By operating, the graphic drawing function described in the following operation description is realized.

  Next, a specific operation associated with the figure drawing function by the touch panel PDA 10 having the above-described configuration will be described.

  FIG. 2 is a flowchart showing a graphic drawing process (part 1) by the touch panel PDA 10.

  FIG. 3 is a flowchart showing a graphic drawing process (part 2) by the touch panel PDA 10.

  FIG. 4 is a flowchart showing a graphic drawing process (part 3) by the touch panel PDA 10.

  FIG. 5 is a diagram showing an operation explanation screen G for the user displayed on the touch panel color display unit 17 when the graphic drawing process by the touch panel PDA 10 is started.

  When the graphic drawing processing program 12a is activated by selecting and executing an application program in accordance with a user operation, as shown in FIG. 5, for a user to explain how to perform a touch operation according to several graphic types. The operation explanation screen G is displayed on the touch panel type color display unit 17 (hereinafter referred to as “touch panel display unit 17”).

(Drawing a circle C)
FIG. 6 is a diagram showing a display operation on the graphic input screen GF in response to a touch operation when the circle C is drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10.

  If it is determined that there is a touch input corresponding to a user operation on the touch panel display unit 17 (step S1 (Yes)), it is determined whether or not XY coordinates for graph display are being displayed (step S1). S2).

  If it is determined that the XY coordinates are not being displayed (step S2 (No)), whether there are two touch points associated with the touch operation (step S3) or three points (step S3). Step S22) It is determined whether or not there is one point (Step S27).

  Here, as shown in FIG. 6A, when it is determined that two points P1 and P2 are touched in response to a touch operation of the user H on the touch panel display unit 17 (step S3 (Yes)), the touch is performed. It is determined whether or not the points P1 and P2 have moved (step S4).

  When the touch point P2 is moved in an arc shape around the touch point P1, it is determined that the touch point P2 has moved (step S4 (Yes)), and the locus L of movement of the touch point P2 is the touch point P1. It is determined whether or not the arc condition for is satisfied within a certain range (step S5).

  Then, as shown in FIG. 6B, if it is determined that the locus L of movement from the touch point P2 to P2 'satisfies the arc condition having the radius P1-P2 (P2') (step S5 (Yes )), The basic graphic data of the circle is read from the drawing graphic database 12c, and the circle C whose size is adjusted so that the position of the touch point P1 is the center and the position of the touch point P2 (P2 ') is the circular arc is drawn. Is displayed (step S6).

(Figure drawing of parallel lines PL)
FIG. 7 is a diagram illustrating a display operation on the graphic input screen GF in response to a touch operation when the parallel line PL is drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10.

  As shown in FIG. 7A, after it is determined that two points P1 and P2 are touched according to the touch operation of the user H on the touch panel display unit 17 (step S3 (Yes)), both touch points P1 and P2 are touched. When P2 is translated (step S4 (Yes)), it is determined that the touch points P1 and P2 have moved (step S4 (Yes)).

  If it is determined that the movement paths L1 and L2 of the touch points P1 and P2 satisfy the parallel condition within a certain range (step S7 (Yes)), the basic graphic data of parallel lines is read from the drawing graphic database 12c. 7B, the size is adjusted so that the distance between the first touch points P1 and P1 ′ before and after the movement is parallel to the distance between the second touch points P2 and P2 ′. The line PL is drawn and displayed (step S8).

  When it is determined that the movement trajectories L1 and L2 of the touch points P1 and P2 do not satisfy the parallel condition within a certain range (step S7 (No)), the first touch point P1 before and after the movement is determined. The trajectory of movement corresponding to between -P1 'and between the second touch points P2-P2' is drawn and displayed as it is (step S9).

(Figure drawing of equilateral triangle TR)
FIG. 8 is a diagram showing a display operation on the figure input screen GF in response to a touch operation when the regular triangle TR is drawn and displayed in accordance with the figure drawing process by the touch panel PDA 10.

  As shown in FIG. 8A, after it is determined that two points P1 and P2 are touched in response to the touch operation of the user H on the touch panel display unit 17 (step S3 (Yes)), one touch point P2 Is moved once as indicated by an arrow m, and when the other point P3 that is the third vertex is touched as shown in FIG. 8B, it is determined that the touch point P2 has been released. (Step S10 (Yes)), it is determined that another point P3 is touched (Step S11 (Yes)).

  If it is determined that the positional relationship between the touch points P1, P2, and P3 satisfies the equilateral triangle condition within a certain range (step S12 (Yes)), the equilateral triangle basic figure data is obtained from the drawing figure database 12c. The equilateral triangle TR that has been read and adjusted so that the three vertices coincide with each other within a certain range is drawn and displayed at each of the touch points P1, P2, and P3 (step S13).

  When it is determined that the positional relationship between the touch points P1, P2, and P3 does not satisfy the equilateral triangle condition within a certain range (step S12 (No)), the touch points P1, P2, and P3 are respectively set. The triangle as the vertex is drawn and displayed as it is (step S14).

(Square RS drawing)
FIG. 9 is a diagram showing a display operation on the graphic input screen GF in response to a touch operation when the square RS is drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10.

As shown in FIG. 9A, after it is determined that the two points P1 and P2 are touched in response to the touch operation of the user H on the touch panel display unit 17 (step S3 (Yes)), the touch points P1. , P2 are once moved apart as indicated by arrows m, m2, and when touching the other two points P3, P4 as shown in FIG. 9B, it is determined that the touch points P1, P2 have been released. At the same time (step S10 (Yes)), it is determined that another two points P3 and P4 are touched (step S15 (Yes)).

  If it is determined that the positional relationship between the touch points P1, P2, P3, and P4 satisfies the square condition within a certain range (step S16 (Yes)), the square basic graphic data is obtained from the drawing graphic database 12c. The square RS that has been read and adjusted so that the four vertices coincide with each other within a certain range is drawn and displayed at each of the touch points P1, P2, P3, and P4 (step S17).

When it is determined that the positional relationship between the touch points P1, P2, P3, and P4 does not satisfy the square condition within a certain range (step S16 (No)), the rectangular condition is satisfied within the certain range. If it is determined (step S18 (Yes)), rectangular basic figure data is read from the drawing figure database 12c, and the four vertices coincide with the touch points P1, P2, P3, and P4 within a certain range. Is drawn and displayed in the size-rectified rectangle (
Step S19).

  Further, if it is determined that the positional relationship between the touch points P1, P2, P3, and P4 does not satisfy the rectangular condition (step S18 (No)), the touch points P1, P2, P3, and P4 are set as vertices, respectively. The drawn rectangle is drawn and displayed as it is (step S20).

(Line drawing SL drawing)
FIG. 10 is a diagram illustrating a display operation on the graphic input screen GF in response to a touch operation when the straight line SL is drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10.

  As shown in FIG. 10A, after it is determined that two points P1 and P2 have been touched in response to the touch operation of the user H on the touch panel display unit 17 (step S3 (Yes)), FIG. As shown in FIG. 5, if the touch points P1 and P2 are left apart, it is determined that the touch points P1 and P2 are released (step S10 (Yes)), and another one or two points are touched. It is determined that it is not present (step S11 (No) → S15 (No)).

  Then, a straight line SL with the touch points P1 and P2 as end points is drawn and displayed (step S21).

(Drawing of concentric circles CC)
FIG. 11 is a diagram showing a display operation on the graphic input screen GF in response to a touch operation when a concentric circle CC is drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10.

  As shown in FIG. 11A, when it is determined that the three points P1, P2, and P3 are touched in response to the touch operation of the user H on the touch panel display unit 17 (step S22 (Yes)), the touch point It is determined whether or not P1, P2, and P3 have been moved (step S23).

  When the touch points P2 and P3 are both moved in an arc shape centering on the touch point P1, it is determined that the touch points P2 and P3 have moved (step S23 (Yes)), and the touch points P2 and P3 are moved. It is determined whether or not the trajectories L1 and L2 satisfy the arc condition for the touch point P1 within a certain range (step S24).

  As shown in FIG. 11 (B), the trajectories L1 and L2 of the movement from the touch points P2 and P3 to P2 'and P3' are the radius P1-P2 (P2 ') and the radius P1-P3 (P3). If it is determined that the arc condition defined as ′) is satisfied (step S24 (Yes)), concentric basic graphic data is read from the drawing graphic database 12c, the position of the touch point P1 is the center, and the touch point P2 (P2 ′). ) And P3 (P3 ′) are drawn and displayed concentric circles CC adjusted in size so as to be arcs (step S25).

  When it is determined that the movement trajectories L1 and L2 from the touch points P2 and P3 to P2 ′ and P3 ′ do not satisfy the arc condition within a certain range (step S24 (No)), The movement trajectory corresponding to the distance between the first touch points P2 and P2 'before and after the movement and the distance between the second touch points P3 and P3' is drawn and displayed as it is (step S26).

(Combination drawing of multiple figures)
FIG. 12 is a diagram showing a display operation (part 1) on the graphic input screen GF corresponding to the touch operation when the parallel line PL, the triangle TR, and the circle C are drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10. It is.

  FIG. 13 is a diagram showing a display operation (part 2) on the graphic input screen GF corresponding to the touch operation when the parallel line PL, the triangle TR, and the circle C are drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10. It is.

  FIG. 14 is a diagram showing a display operation (part 3) on the graphic input screen GF corresponding to a touch operation when the parallel line PL, the triangle TR, and the circle C are drawn and displayed in accordance with the graphic drawing process by the touch panel PDA 10. It is.

  As shown in FIGS. 12A and 12B, the touch panel display unit 17 is arranged in parallel according to the touch operation positions P1 ′ and P2 ′ and the manners L1 and L2 in accordance with the processes of steps S1 to S5, S7, and S8. In order to add the symbols l and m to the parallel line PL in a state where the line PL is drawn and displayed, first, when one point touched by the user H is moved and the handwritten character “l” is input, one point is displayed. After it is determined that it has been touched and moved (Step S27 (Yes) → S29 (Yes)), it is determined that the touch has been released (Step S30 (Yes)), and the locus corresponding to the movement of the touch point is handwritten. The character “l” HC is drawn and displayed (step S31).

  Then, as shown in FIG. 12C, when the user touches and holds the handwritten character “l” HC displayed on the parallel line PL at one point, the point is touched for a certain time. It is determined that the handwritten character “l” HC is touched (step S27 (Yes) → S28 (Yes)), and the handwritten character “l” HC is selected (step S32). Selection marks Sa to Sd are displayed (step S33).

  When it is determined that the touch point has been moved in a state where the handwritten character “l” HC is touched and selected (step S34 (Yes)), the handwritten character “l” HC moves in the moving direction of the touch point. While being displayed, it is displayed (step S35).

  On the other hand, after it is determined that the touch operation on the selected handwritten character HC is released (step S36 (Yes)), it is determined that the handwritten character HC is touched again (step S37 (Yes)), When it is determined that the touch point has been moved within a certain range of the feature point such as the vertex or center of another drawn graphic (step S38 (Yes)), the moved handwritten character HC is converted into the graphic. The graphic screen data which is registered as the symbol or mark of the feature point and displayed on the graphic input screen GF including this is registered in the drawing data registration memory 12e (step S39).

Further, after it is determined that the touch operation on the selected handwritten character HC has been released (step S36 (Yes)), for example, as shown in FIG. 13A, the handwritten character “l” HC is moved to the left. When it is determined that the flick FL has been performed (step S42), the left-flicked FL handwritten character “l” HC is character-recognized according to the character recognition processing program 12b, converted into a normal italic character “l” RC, and displayed. (Step S43).

  Although not shown, when it is determined that the handwritten character HC is flicked FR in the right direction (step S40), the right-flicked handwritten character HC is character-recognized according to the character recognition processing program 12b. Are converted into regular Gothic characters GC and displayed (step S41).

  Thereafter, as shown in FIG. 13B, the handwritten character “m” HC is also drawn and displayed under the parallel line PL under the same character input process (steps S27 to S43). Later, it is converted into a normal italic character “m” RC and displayed.

  Then, as shown in FIGS. 13B and 13C, the position of the touch operation is adjusted according to the parallel lines PL already displayed on the touch panel display unit 17 in accordance with the processes of steps S1 to S3 and S10 to S14. A triangle TR corresponding to P1, P2, and P3 and the manner is drawn and displayed.

  Thereafter, the handwritten characters “A”, “B”, and “C” HC are drawn and displayed near the vertices of the triangle TR in accordance with the same character input process (steps S27 to S43), and then the regular characters are displayed. The Gothic characters “A”, “B” and “C” RC are converted and displayed.

  Further, as shown in FIGS. 14A and 14B, according to the processing of steps S1 to S6, the touch operation positions P1 and P2 are inscribed on the touch panel display unit 17 so as to be inscribed in the already displayed triangle TR. A circle C corresponding to (P2 ′) and the way L is drawn and displayed.

  Then, as shown in FIG. 14C, a graphic input screen GF is displayed in which a parallel line (l, m) PL, a triangle (A, B, C) TR, and a circle C are drawn and displayed, and the drawing data is displayed. Registered in the registration memory 12e.

(Graph drawing of graph y)
FIG. 15 is a diagram showing a display operation on the graphic input screen GF in response to a touch operation when the graph y of the Nth-order curve is drawn and displayed according to the graphic drawing process by the touch panel PDA 10.

  When it is determined that there is a touch input corresponding to a user operation on the touch panel display unit 17 (step S1 (Yes)), for example, as shown in FIG. 15A, display of XY coordinates for graph display If it is determined that it is in the middle (step S2 (Yes)), it is determined whether the touch point is one point or two points (step S44 / S52).

  Here, when the user touches one point P1 on the XY coordinates and moves the touch point P1 so as to draw a quadratic curve, it is determined that the one point P1 is touched (step S1). S44 (Yes)), it is determined that the touch point P1 has been moved (Step S45 (Yes)), and it is determined whether or not the movement trajectory L satisfies the condition of the Nth order curve within a certain range (Step S46).

  Then, as shown in FIG. 15B, when it is determined that the movement locus L moved from the touch point P1 to P1 ′ satisfies the condition of the quadratic curve (step S46 (Yes)), the drawing figure The quadratic curve basic figure data is read from the database 12c, and the quadratic curve graph y adjusted to match the locus L of the touch points P1 to P1 'within a certain range is drawn and displayed. (Step S47).

  Along with this, a quadratic function expression “y = (x−5) ^ 2” corresponding to the graph y of the drawn quadratic curve is displayed (step S48).

  On the other hand, when it is determined that the movement locus L moved from the touch point P1 to P1 ′ satisfies the condition of the sine wave curve within a certain range (step S49 (Yes)), the sine wave curve is drawn from the drawing graphic database 12c. The basic figure data is read out, and a graph y of a sine wave curve whose size is adjusted so as to coincide with the locus L of the touch points P1 to P1 'within a certain range is drawn and displayed (step S50).

  At the same time, a sin function expression “y = sin (x + π)” corresponding to the drawn graph y of the sinusoidal curve is displayed (step S51).

  FIG. 16 is a diagram illustrating a display operation on the graphic input screen GF in response to a touch operation when the sine wave hyperbola graphs y1 and y2 are drawn and displayed according to the graphic drawing process by the touch panel PDA 10.

As shown in FIG. 16A, when the user touches the two points P1 and P2 on the XY coordinates and moves the touch points P1 and P2 so as to draw a hyperbola of a sine wave, 2 It is determined that the points P1 and P2 are touched (step S52 (Yes)), it is determined that the touch points P1 and P2 are moved (step S53 (Yes)), and the touch points P1 ′ and P2 ′ after the movement are detected. It is determined whether or not each of the movement trajectories L1 and L2 satisfies the conditions of the sine wave curve within a certain range (step S57).

  When it is determined that the movement trajectories L1 and L2 moved to the touch points P1 ′ and P2 ′ satisfy the conditions of the sine wave curve (step S57 (Yes)), as shown in FIG. In addition, basic graphic data of sinusoidal hyperbola having different phases is read from the drawing graphic database 12c, and the size is adjusted so as to coincide with the loci L1 and L2 of the touch points P1 to P1 ′ and P2 to P2 ′ within a certain range. The adjusted sinusoidal hyperbola graphs y1 and y2 are drawn and displayed (step S58).

  At the same time, sin function expressions “y = 10sin (x)” and “y = 10sin (x + π / 4)” corresponding to the drawn sinusoidal hyperbola graphs y1 and y2 are displayed (step S59). .

  On the other hand, if it is determined that the two touch points P1 and P2 on the XY coordinates are separated without being moved (step S52 (Yes) → S54 (Yes)), the touch points P1 and P2 are changed. A linear curve graph y connected by a straight line is drawn and displayed (step S55).

  At the same time, a linear function expression “y = f (x)” corresponding to the drawn linear curve graph y is displayed (step S56).

  Therefore, according to the figure drawing function by the touch panel type PDA 10 having the above-described configuration, the touch panel display unit 17 touches positions corresponding to a plurality of feature points corresponding to a user-desired figure, and the touch position is set to the figure. If you move it according to the shape, or once release it and touch another position, various figures (circle / parallel line / normal line) will be displayed depending on the touched multiple touch positions, the movement trajectory, and additional touch positions. (Triangle / Triangle / Square / Rectangle / Rectangle / Line / Concentric Circle / Oval etc.) is determined, and the type of graphic and the drawing position are determined. Then, according to the determined figure type and drawing position, a corresponding type of basic figure is read from the drawing figure database 12c, and the size is adjusted to the drawing position and displayed.

  For this reason, it is not necessary to select a figure type in advance, not to draw a figure by hand, and it is possible to draw and display a desired figure quickly and beautifully by a user's intuitive and straightforward touch operation. become.

  Further, according to the graphic drawing function by the touch panel PDA 10 having the above-described configuration, when one point is further touched and moved according to the shape of a desired character on the touch panel display unit 17, the movement trajectory is changed. Handwritten characters are drawn and displayed. When one point of the handwritten character drawn and displayed is touched and moved, the handwritten character is also moved and displayed in the moving direction. When the displayed handwritten character is touched and flicked to the right, the character is recognized and converted to a Gothic character and displayed. When flicked to the left, the character is recognized and converted to an italic character and displayed.

  For this reason, a symbol, a mark, or the like associated with the figure can be easily given to an arbitrary position such as the center or the vertex of the desired figure drawn and displayed on the touch panel display unit 17 according to the touch operation by the user. It can be added and displayed.

  Further, in the state where the XY coordinates are displayed on the touch panel display unit 17, when a locus corresponding to a graph desired by the user is touched and moved, various graphs are displayed according to the touch position and the locus of the movement. Characteristic conditions (such as Nth order curve / sine wave curve / sine wave hyperbola) are determined, and the type of graph and drawing position are determined. Then, according to the determined graph type and drawing position, a corresponding type of basic figure (graph) is read out from the drawing figure database 12c, and the size is adjusted to the drawing position and displayed.

  Therefore, it is not a drawing of a figure (graph) by hand, and it is not necessary to select the type of the figure (graph) in advance. On the graph coordinates, the desired figure (by a user's intuitive and straightforward touch operation) Graph) can be drawn and displayed quickly and neatly.

  In addition, each process technique and database by the touch panel PDA 10 described in the embodiment of the figure drawing apparatus, that is, each technique such as the figure drawing process (No. 1 to No. 3) shown in the flowcharts of FIGS. The drawing graphic database 12c 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 storage medium 13 such as a semiconductor memory. And the computer of the electronic device provided with the touch panel type display unit (17) reads the program stored in the external storage medium 13 into the storage device (12), and the operation is controlled by the read program. The graphic drawing function corresponding to the touch position by the user and the manner described in the embodiment can be realized, and the same processing can be executed by the method described above.

  In addition, program data for realizing each of the above methods can be transmitted on the network N as a program code form, and the program data is captured by the communication control unit 15 in a computer connected to the network N. Thus, it is possible to realize the graphic drawing function according to the touch position by the user and the manner thereof.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention when it is practiced. Further, each of the embodiments includes 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 elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the column of the problem to be solved by the invention If the effects described in the column “Effects of the Invention” can be obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

  Hereinafter, the invention described in the scope of claims of the present application will be appended.

[1]
A touch panel;
A display unit;
Touch position detecting means for detecting a touch position according to a user operation of the touch panel;
Touch movement determination means for determining whether or not at least one of the plurality of touch positions has been moved after the plurality of touch positions are detected by the touch position detection means;
A touch change determining means for determining a subsequent change in the touch position detected by the touch position detecting means when it is determined that the touch position has been moved by the touch movement determining means;
Figure drawing determining means for determining the type of figure and its drawing position according to the touch position detected by the touch position detecting means and the subsequent change of the touch position determined by the touch change determining means;
Graphic display control means for displaying a graphic on the display unit in accordance with the type of graphic determined by the graphic drawing determination means and the drawing position;
A graphic drawing apparatus comprising:

[2]
If the touch change determination means determines that the touch position detected by the touch position detection means has been moved, does the touch trajectory of other touch positions except the one touch position satisfy an arc condition? Arc condition determining means for determining whether or not,
The figure drawing determining means, when it is determined that the arc condition is satisfied by the arc condition determining means, if the touch position detected by the touch position detecting means is two points, the type of the figure is a circle, When the number of points is three or more, the type of the figure is determined as a concentric circle, and the drawing position is determined as a position corresponding to the movement locus,
The graphic drawing apparatus according to [1], wherein

[3]
The touch change determination unit determines whether or not the movement trajectories of the plurality of touch positions satisfy a parallel condition when the touch movement determination unit determines that the touch position detected by the touch position detection unit has been moved. A parallel condition judging means for judging whether
The graphic drawing determination means determines the graphic type as a parallel line when the parallel condition determination means determines that the parallel condition is satisfied, and sets the drawing position as a position corresponding to the movement trajectory. decide,
The graphic drawing apparatus described in [1] or [2].

[4]
further,
A triangle condition determining unit that determines whether or not the plurality of touch positions satisfy a triangle condition when it is determined that the touch position detected by the touch position detecting unit is not moved by the touch movement determining unit; ,
A quadrangle condition determination unit that determines whether or not the plurality of touch positions satisfy a quadrangle condition when the touch movement determination unit determines that the touch position detected by the touch position detection unit is not moved; Have
The graphic drawing determination means determines that the type of graphic is a triangle when the triangle condition determination means determines that the triangle condition is satisfied, and the graphic condition determination means determines that the square condition is satisfied Determining the type of the figure as a quadrangle, and determining the drawing position as a position corresponding to the plurality of touch positions,
The figure drawing apparatus according to any one of [1] to [3].

[5]
The graphic drawing determining means determines that the plurality of touch positions detected by the touch position detecting means are two points and the touch position detected by the touch position detecting means is not moved by the touch movement determining means. After that, when it is determined that the two touch positions are no longer detected, the type of the figure is determined as a straight line, and the drawing position is determined as a position corresponding to the two touch positions. The graphic drawing apparatus according to any one of [1] to [4], wherein:

[6]
A one-point locus for displaying the movement locus on the display unit when the touch movement determining portion determines that the touch position has been moved after the touch position detecting portion detects the touch position of one point. Display control means;
Character recognition means for recognizing the movement locus of the touch position displayed by the one-point locus display control means;
Character conversion display control means for converting and displaying the movement locus of the touch position displayed by the one-point locus display control means into characters recognized by the character recognition means;
The graphic drawing apparatus according to any one of [1] to [5], comprising:

[7]
Coordinate display determination means for determining whether or not graph coordinates are displayed on the display unit,
The touch position when the touch position detected by the touch position detecting means is moved by the touch movement determining means in a state where the graph coordinates are determined by the coordinate display determining means. N-th curve condition determining means for determining whether or not the trajectory of the movement satisfies the condition of the N-th curve and sine wave curve condition determining means for determining whether or not the condition of the sine wave curve is satisfied. ,
The graphic drawing determining means determines that the graphic type is an Nth order curve and the sine wave curve condition determining means is a sine wave curve when the Nth order curve condition determining means determines that the Nth order curve condition is satisfied. When it is determined that the condition is satisfied, the type of the figure is determined as a sine wave curve, and the drawing position is determined as a position corresponding to the movement trajectory.
The figure drawing apparatus according to any one of [1] to [6].

[8]
A program for controlling a computer of an electronic device including a touch panel and a display unit,
Touch position detecting means for detecting a touch position according to a user operation of the touch panel;
Touch movement determination means for determining whether at least one of the plurality of touch positions has been moved after the plurality of touch positions are detected by the touch position detection means;
A touch change determining means for determining a subsequent change in the touch position detected by the touch position detecting means when it is determined that the touch position has been moved by the touch movement determining means;
A figure drawing determining means for determining the type of figure and its drawing position according to the touch position detected by the touch position detecting means and the subsequent change of the touch position determined by the touch change determining means;
Graphic display control means for displaying a graphic on the display unit in accordance with the type of graphic determined by the graphic drawing determination means and its drawing position;
Program to function as.

10 ... Touch panel PDA (graphic drawing device)
11 ... CPU
DESCRIPTION OF SYMBOLS 12 ... Memory 12a ... Graphic drawing process program 12b ... Character recognition processing program 12c ... Drawing graphic database 12e ... Drawing data registration memory 12f ... Work area 13 ... External storage medium 14 ... Storage medium read / write part 15 ... Communication control part 16 ... Key input Part 17: Touch panel type color display part N ... Network H ... User Pn ... Touch point L, Ln ... Touch locus C ... Circle PL ... Parallel line TR ... Regular triangle (triangle)
SL… Linear RS… Square (Rectangle)
CC… Concentric circle HC… Handwritten character RC… Recognition character (italic / Gothic)

The present invention relates to a figure drawing apparatus , a figure drawing method, and a program for drawing an arbitrary figure by a user.

Graphics-rendering apparatus according to the present invention, a touch panel, a display unit, a touch position detecting means for detecting a touch position according to the user operation of the touch panel, after the plurality of the touch position is detected by the touch position detection unit When the at least one touch position of the plurality of touch positions is moved , the figure drawing for determining the type of the figure and the drawing position according to the movement of the detected plurality of touch positions and the subsequent touch position a determination unit, a graphic display control means for displaying a graphic on the display unit according to the kind and the drawing position of the figure, which is determined by the drawing determination section, the touch position of a point by the touch position detecting means One-point locus display control means for displaying the movement locus on the display unit when it is determined that the touch position has been moved after the detection. Selects a trajectory of the moving in response to a user operation, and the trajectory of the movement to which the selected characterized by and a code registration means for registering as a code indicating the feature point of the graphic.

Claims (7)

A touch panel;
A display unit;
Touch position detecting means for detecting a touch position according to a user operation of the touch panel;
Touch movement determination means for determining whether or not at least one of the plurality of touch positions has been moved after the plurality of touch positions are detected by the touch position detection means;
A touch change determining means for determining a subsequent change in the touch position detected by the touch position detecting means when it is determined that the touch position has been moved by the touch movement determining means;
Figure drawing determining means for determining the type of figure and its drawing position according to the touch position detected by the touch position detecting means and the subsequent change of the touch position determined by the touch change determining means;
Graphic display control means for displaying a graphic on the display unit in accordance with the type of graphic determined by the graphic drawing determination means and the drawing position;
Coordinate display determination means for determining whether or not graph coordinates are displayed on the display unit;
The touch position when the touch position detected by the touch position detecting means is moved by the touch movement determining means in a state where the graph coordinates are determined by the coordinate display determining means. Nth-order curve condition determining means for determining whether or not the trajectory of movement satisfies the condition of the Nth-order curve;
The touch position when the touch position detected by the touch position detecting means is moved by the touch movement determining means in a state where the graph coordinates are determined by the coordinate display determining means. Sine wave curve condition determining means for determining whether or not the trajectory of movement satisfies the condition of the sine wave curve,
The graphic drawing determining means determines that the graphic type is an Nth order curve and the sine wave curve condition determining means is a sine wave curve when the Nth order curve condition determining means determines that the Nth order curve condition is satisfied. When it is determined that the condition is satisfied, the type of the figure is determined as a sine wave curve, and the drawing position is determined as a position corresponding to the movement trajectory.
A graphic drawing apparatus characterized by that. When the touch change determination unit determines that the touch position detected by the touch position detection unit has been moved, whether the movement trajectory of other touch positions excluding the one touch position satisfies an arc condition. Arc condition determining means for determining whether or not,
The figure drawing determining means, when it is determined that the arc condition is satisfied by the arc condition determining means, if the touch position detected by the touch position detecting means is two points, the type of the figure is a circle, When the number of points is three or more, the type of the figure is determined as a concentric circle, and the drawing position is determined as a position corresponding to the movement locus,
The figure drawing apparatus according to claim 1. The touch change determination unit determines whether or not the movement trajectories of the plurality of touch positions satisfy a parallel condition when the touch movement determination unit determines that the touch position detected by the touch position detection unit has been moved. A parallel condition judging means for judging whether
The graphic drawing determination means determines the graphic type as a parallel line when the parallel condition determination means determines that the parallel condition is satisfied, and sets the drawing position as a position corresponding to the movement trajectory. decide,
The figure drawing apparatus according to claim 1 or 2, wherein further,
A triangle condition determining unit that determines whether or not the plurality of touch positions satisfy a triangle condition when it is determined that the touch position detected by the touch position detecting unit is not moved by the touch movement determining unit; ,
A quadrangle condition determination unit that determines whether or not the plurality of touch positions satisfy a quadrangle condition when the touch movement determination unit determines that the touch position detected by the touch position detection unit is not moved; Have
The graphic drawing determination means determines that the type of graphic is a triangle when the triangle condition determination means determines that the triangle condition is satisfied, and the graphic condition determination means determines that the square condition is satisfied Determining the type of the figure as a quadrangle, and determining the drawing position as a position corresponding to the plurality of touch positions,
The graphic drawing apparatus according to claim 1, wherein the graphic drawing apparatus is the same as any one of claims 1 to 3. The graphic drawing determining means determines that the plurality of touch positions detected by the touch position detecting means are two points and the touch position detected by the touch position detecting means is not moved by the touch movement determining means. After that, when it is determined that the two touch positions are no longer detected, the type of the figure is determined as a straight line, and the drawing position is determined as a position corresponding to the two touch positions.
The graphic drawing apparatus according to claim 1, wherein the graphic drawing apparatus is a graphic drawing apparatus. A one-point locus for displaying the movement locus on the display unit when the touch movement determining portion determines that the touch position has been moved after the touch position detecting portion detects the touch position of one point. Display control means;
Character recognition means for recognizing the movement locus of the touch position displayed by the one-point locus display control means;
Character conversion display control means for converting and displaying the movement locus of the touch position displayed by the one-point locus display control means into characters recognized by the character recognition means;
The graphic drawing apparatus according to claim 1, further comprising: A program for controlling a computer of an electronic device including a touch panel and a display unit,
The computer,
Touch position detecting means for detecting a touch position according to a user operation of the touch panel;
Touch movement determination means for determining whether at least one of the plurality of touch positions has been moved after the plurality of touch positions are detected by the touch position detection means;
A touch change determining means for determining a subsequent change in the touch position detected by the touch position detecting means when it is determined that the touch position has been moved by the touch movement determining means;
Figure drawing determining means for determining the type of figure and its drawing position according to the touch position detected by the touch position detecting means and the subsequent change of the touch position determined by the touch change determining means;
Graphic display control means for displaying a graphic on the display unit in accordance with the type of graphic determined by the graphic drawing determination means and its drawing position;
Coordinate display determination means for determining whether or not graph coordinates are displayed on the display unit;
The touch position when the touch position detected by the touch position detecting means is moved by the touch movement determining means in a state where the graph coordinates are determined by the coordinate display determining means. Nth-order curve condition judging means for judging whether or not the trajectory of movement satisfies the condition of the Nth-order curve,
The touch position when the touch position detected by the touch position detecting means is moved by the touch movement determining means in a state where the graph coordinates are determined by the coordinate display determining means. Sine wave curve condition judging means for judging whether or not the trajectory of movement satisfies the condition of the sine wave curve,
Function as
The graphic drawing determining means determines that the graphic type is an Nth order curve and the sine wave curve condition determining means is a sine wave curve when the Nth order curve condition determining means determines that the Nth order curve condition is satisfied. When it is determined that the condition is satisfied, the type of the figure is determined as a sine wave curve, and the drawing position is determined as a position corresponding to the movement trajectory.
A program characterized by that.

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