JP5464903B2 - Information processing apparatus, control method, and program - Google Patents

Description

  The present invention relates to an information processing apparatus and the like, and more particularly to object selection based on a handwritten locus.

  In recent years, UIs based on handwriting input are gradually becoming popular because operations are intuitive and easy to understand, and operations can be directly directed to objects. In addition, since it can be operated with a finger without preparing a separate input device, it has become widespread especially in portable devices. For this reason, it is becoming common to display contents such as music data, images, moving images, and documents stored in portable devices as objects on the screen and select them by handwriting input.

  As a method for selecting an object by handwriting input, a method for selecting an object existing inside the object surrounded by a handwritten locus as in Patent Document 1 has been proposed. Japanese Patent Application Laid-Open No. 2004-228620 proposes a button that allows switching between selecting an object within a range surrounded by a trajectory or selecting an object below the trajectory.

JP 2006-31966 A JP 2007-066285 A

  However, in the method proposed in Patent Document 1, only one type of selection method of selecting the inside surrounded by the trajectory can be selected, and the object cannot be selected by tracing over the object. In addition, in the method proposed in Patent Document 2, two methods of selecting an interior surrounded by a trajectory and selecting an object located under the drawn trajectory can be selected. It took two steps to press the button.

  The present invention has been made in view of such a situation, and an object of the present invention is to select various object selection patterns only with a one-stroke handwriting input locus.

In order to achieve the above object, the present invention provides a display means for simultaneously displaying a plurality of objects, a determination means for determining whether an input locus is a closed curve, and a plurality of objects displayed by the display means. Selecting means for determining an object to be selected from; and first acquiring means for acquiring the position of the end point of the input locus when the determining means determines that the locus is a closed curve. The selection means is an object that is determined based on a relative positional relationship between the position where the end point acquired by the first acquisition means exists and the closed curve when the determination means determines that the locus is a closed curve. And when it is determined that the locus is not a closed curve, an object displayed under the inputted locus is selected. To provide an information processing apparatus or the like.

  According to the present invention, it is possible to select various object selection patterns with only a single stroke handwriting input locus.

It is a block diagram which shows an example of embodiment of this invention. It is a block diagram which shows an example of the software structure of embodiment of this invention. It is a figure which shows notionally an example of a mode that performs the object selection in embodiment of this invention. It is a figure which shows notionally an example of the definition and selection of the object in embodiment of this invention. It is a flowchart which shows an example of the object selection process in embodiment of this invention. It is a figure which shows notionally an example which judges that it became a closed curve when a part of locus | trajectory in embodiment of this invention cross | intersects. It is a flowchart which shows an example of the closed curve discrimination | determination process by whether the locus | trajectory crossed in embodiment of this invention. It is a figure which shows notionally an example which judges that it became a closed curve, when a locus | trajectory passes twice on the same object in embodiment of this invention. It is a flowchart which shows an example of the closed curve discrimination | determination process by whether the locus | trajectory passed twice on the same object in embodiment of this invention. It is a figure which shows notionally an example in which a selection object switches according to the positional relationship of the closed curve and the start point or end point of a locus | trajectory in embodiment of this invention. It is a flowchart which shows an example of the process which selects an object according to the positional relationship of the closed curve and the start point or end point of a locus | trajectory in embodiment of this invention. It is a figure which shows notionally an example which changes the object selection under a locus | trajectory according to the protrusion method of the locus | trajectory in embodiment of this invention. It is a flowchart which shows an example of the process which selects the object when a locus | trajectory protrudes from the closed area | region in embodiment of this invention, and is drawn.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention only to them. In addition, not all the combinations of features described in the present embodiment are essential for the solving means of the invention.

(First embodiment)
In the present embodiment, an embodiment for determining an object to be selected depending on whether or not a handwritten input locus is a closed curve will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating an example of a hardware configuration of the information processing apparatus 100 according to the present embodiment. Reference numeral 102 denotes a CPU (Central Processing Unit), which performs calculations and logic determinations for various processes, and controls each component connected to the bus 101.

  The information processing apparatus 100 includes a memory including a program memory and a data memory. The program memory stores a program for control by the CPU including various processing procedures described later with reference to flowcharts. This memory may be a ROM (Read-Only-Memory) 103 or a RAM (Random Access Memory) 104 into which a program is loaded from an external storage device or the like. Or you may implement | achieve with these combination.

  Reference numeral 105 denotes a storage device such as a hard disk for storing data and programs according to the present embodiment. In the present embodiment, it is also used to hold content. Note that a content holding device connected to an external connection or a network may be used as a device for holding content. Further, the external storage device 106 may be used as the same role as the storage device 105. Here, the external storage device 106 can be realized by, for example, a medium (recording medium) and an external storage drive for realizing access to the medium. As such media, for example, a flexible disk (FD), a CD-ROM, a DVD, a USB memory, an MO, a flash memory, and the like are known.

Reference numeral 107 denotes an input device for inputting an instruction from the user. The user gives an instruction to the information processing apparatus 100 via the input device 107. The input device 107 can be realized by, for example, a keyboard, a pointing device, a touch panel, or the like. In the present embodiment, an instruction is given by handwriting input using a touch panel.
Reference numeral 108 denotes an output device as display means for displaying and outputting the processing result of the information processing apparatus 100. The output device 108 can be realized, for example, by a display device such as a CRT (Cathode-Ray-Tube) including a circuit for output or a liquid crystal display. In the present embodiment, the information processing apparatus 100 displays a plurality of objects on the output device (display device) 108.

FIG. 2 is a block diagram illustrating an example of a software configuration of the information processing apparatus 100 according to the present embodiment.
Reference numeral 201 denotes an object management unit which manages information on objects displayed on the screen by the output device 108. Here, the screen display position of the object, presence / absence of selection, object arrangement rule, etc. are managed.
A screen forming unit 202 arranges objects based on information from the object management unit 201 and forms a screen to be displayed.
A screen display unit 203 displays the screen content formed by the screen forming unit on the screen by the output device 108.
Reference numeral 204 denotes an input processing unit that accepts handwriting locus input information input from the input device 107, input information from the keyboard, and input from the pointing device.
Reference numeral 205 denotes a handwriting trajectory detection unit that detects the coordinates and shape of the handwriting trajectory received by the input processing unit 107. The detected trajectory information may be sent to the screen forming unit 202 and instructed to be displayed on the screen.
Reference numeral 206 denotes a closed curve discriminating unit that discriminates whether the trajectory is a closed curve based on the coordinates and shape of the handwritten trajectory detected by the handwriting trajectory detection unit 205.

  An object selection unit 207 determines an object to be selected based on the coordinates of the locus of the handwriting locus detection unit 205, the determination result of the closed curve determination unit 206, and the object display position of the object management unit 201. The selected status is given by the object management unit 201 to the object to be selected. In this case, the selected object may be displayed with a different appearance from a normal object so that it can be understood that the selected object is selected by the screen forming unit 202. As an appearance, for example, methods such as changing the color of an object or a frame surrounding the object, changing the size, adding a shadow, or adding a mark can be considered.

Next, a difference in object selection contents between when a closed curve is input by a handwritten locus and when a locus that is not a closed curve is input will be described with reference to FIG. FIG. 3 is a conceptual diagram illustrating an example of how object selection is performed in the present embodiment.
The square frames in the figure are objects, and in this figure, an example is shown in which they are arranged in 4 rows × 5 columns.
Reference numerals 301 to 304 are handwritten trajectories input by the user, which are display examples when the trajectory is displayed on the screen by the screen forming unit 202 based on the coordinates of the trajectory detected by the handwritten trajectory detecting unit 205. . The black circles on the trajectory are the start point and end point of the trajectory. It is assumed that the user inputs the trajectory in order to select the object. In this figure, four patterns (a) to (d) will be described as examples of the input trajectory.

  FIG. 3A and FIG. 3B are examples of a case where the locus is closed like a handwriting locus 301 and a handwriting locus 302 and a closed curve is formed. When the trajectory is a closed curve in this way, an object existing within the range surrounded by the trajectory is selected. In the example of this figure, it is shown that the filled object is the selected object.

FIGS. 3C and 3D are examples of cases where the locus is not closed and a closed curve is not formed, such as the handwriting locus 303 and the handwriting locus 304. In this way, when the locus is not a closed curve, the object under the locus is selected. In particular, in the example of FIG. 3C, a trajectory similar to the trajectory of FIG. 3A is drawn, but since the trajectory is not closed, the center object is not a selection target.
In this way, the user's intention to enclose and select the object is recognized by the fact that the trajectory is closed, and not only the object under the trajectory but also the object within the range surrounded by the trajectory is selected. can do.

Next, an example of object definition and selection will be described with reference to FIG. FIG. 4 is a conceptual diagram showing an example of object definition and selection in the present embodiment.
Reference numerals 401 to 404 denote icons and thumbnails (or actual images) representing contents such as photographs, moving images, music data, and documents, and reference numerals 405 to 408 denote grid frames for arranging icons and thumbnails. Reference numeral 409 denotes an input locus.

For example, if the definition of the object is an icon or thumbnail such as 401 to 404, if a trajectory such as 409 is drawn, no trajectory is placed on the 401 and 402 objects, so 401 and 402 are selected. Will not be.
As another example, when the definition of an object is a grid frame such as 405 to 408 in which content is arranged, when a locus such as 409 is drawn, the locus is drawn on all objects. , 405 to 408 are selected.

Next, details of the object selection processing executed by the information processing apparatus 100 will be described with reference to FIG. FIG. 5 is a flowchart showing an example of object selection processing in the present embodiment.
In FIG. 5, step S501 to step S504 represent each step. The processing of each step is executed under the control of the CPU 102 in accordance with the input of the handwritten locus by the input device 107 of the information processing apparatus 100.

In step S501, a process for determining whether or not the closed curve is as shown in FIG. 3A or 3B is performed. This process will be described with reference to a flowchart described later.
Step S502 is a process of branching depending on whether or not the processing result of step S501 is a closed curve. If it is determined that a closed curve has been reached, the process proceeds to step S503 (Yes in step S502). If it is determined that the curve is not a closed curve, the process proceeds to step S504 (No in step S502).
In step S503, object selection processing is performed when a closed curve is obtained, and processing for selecting an object existing in the closed curve as shown in FIGS. 3A and 3B is performed.
In step S504, object selection processing is performed when the curve is not a closed curve, and processing for selecting an object existing under the trajectory as shown in FIGS. 3C and 3D is performed.
The selected status is assigned to the object that has been selected in steps S503 and S504. You may display on the screen so that it can be recognized that it has been selected.

Next, as an example of a method for determining whether the handwritten locus is a closed curve, a method for determining that the handwritten locus is a closed curve when a portion of the locus intersects will be described with reference to FIG. FIG. 6 is a conceptual diagram illustrating an example in which it is determined that a closed curve is obtained when a part of the trajectories in the present embodiment intersects.
Reference numerals 601 and 603 are handwritten trajectories, and reference numerals 602 and 604 are intersections of the trajectories.

In FIG. 6A, the handwritten trajectory 601 intersects at an intersection 602. As can be seen from FIG. 6 (a), it can be said that if the trajectories intersect, a closed region surrounded by the trajectory is always formed, and the trajectory is a closed curve.
In FIG. 6B, the handwriting locus 603 does not draw a beautiful circle with the start point and end point indicated by black circles protruding, but it can be said that it forms a closed curve because it intersects at the intersection point 604.

  As an example of a method for determining whether or not the trajectories intersect, if the trajectory is drawn at the same time as the trajectory is drawn by the user, and the trajectory passes again when the trajectory passes the same coordinates There is a method of judging. Further, in consideration of the case where it is difficult for the user to strictly cross the trajectories, such as when the screen display content is fine, if the coordinates are close to a certain threshold or more, it may be considered that they have crossed.

Next, the details of the closed curve discrimination process based on whether the trajectories executed by the information processing apparatus 100 intersect will be described with reference to FIG. FIG. 7 is a flowchart illustrating an example of a closed curve discrimination process based on whether or not the trajectories intersect in the present embodiment.
This flowchart details the process of step S501 in FIG. 5. As an example here, a process for determining that a closed curve is obtained when the trajectories intersect will be described.
In step S701, a process of extracting the coordinates of the handwritten locus input by the input device 107 is performed. The coordinates to be extracted may be the coordinates of the center line of the trajectory, or may be coordinates based on the pixels drawn as the trajectory.

In step S702, the coordinates of the trajectory extracted in step S701 are held. The medium to be held may be the RAM 104, the storage device 105, or the external storage device 106.
In step S703, it is determined whether the same coordinates exist in the coordinates extracted in step S701 and the past coordinates held in step S702. If the same coordinates exist here, the trajectories are regarded as intersecting, and it can be determined that they are closed curves. If the same coordinates exist (Yes in step S703), the process proceeds to step S704.
In step S704, since it is determined that a closed curve is obtained, the closed curve flag is turned ON. The flag set here is used for determining a closed curve in step S502 when returning to the flowchart of FIG. 5. If the closed curve flag is ON, it is determined that step S502 is a closed curve (Yes in step S502). Is done.

  In step S705, it is checked whether or not the pen or finger that has been handwritten input has left the touch panel. That is, it is checked whether or not the user has finished inputting the handwriting trajectory. When the handwriting input is completed (Yes in step S705), the process is terminated and the process returns to the flowchart of FIG. If the trajectory input is continued (No in step S705), the process returns to step S701, and the processing in this figure is repeated. As long as the trajectory continues to be input, the process is repeated to check whether the trajectories intersect (has passed the same coordinates).

As described above, in the information processing apparatus 100 according to the present embodiment, an object within a range surrounded by a trajectory is selected or an object existing under the trajectory is selected only by an operation of drawing a selection stroke drawn with a single stroke. Can be switched.
As described above, when the user wants to select a range, only the natural operation of surrounding the object is performed, so that the mode is switched to the mode for selecting the range surrounded by the locus, and the range selection operation can be easily performed.

(Second Embodiment)
In the present embodiment, an embodiment for determining that a closed curve is obtained when a trajectory passes twice on the same object will be described with reference to the drawings.
First, an example in which it is determined that a closed curve is obtained when a trajectory passes twice on the same object will be described with reference to FIG. FIG. 8 is a conceptual diagram illustrating an example of determining that a closed curve is obtained when the trajectory passes twice on the same object in the present embodiment.
Reference numerals 801, 803, and 805 denote handwritten trajectories, and reference numerals 802 and 804 denote objects through which the trajectory passes twice.

  In FIG. 8A, a handwritten locus 801 exists on the same object having a start point and an end point 802 indicated by black circles, and passes over the object 802 twice. In this way, although the trajectories themselves do not intersect, it is determined that the user intends to close the trajectory by bringing the end point to the same object as the start point, and the trajectory is regarded as a closed curve. For this reason, an object inside the closed curve is a selection target.

  In FIG. 8B, the handwriting locus 803 has a starting point on the object 804 and passes again on the object 804. It is also determined that the user has brought the locus to the same object with the intention of closing the locus, and the locus is regarded as a closed curve. For this reason, an object inside the closed curve is a selection target.

In FIG. 8C, since the handwriting trajectory 805 did not pass through the same object twice, the user determines that he did not intend to close the trajectory, and selects only the object located under the trajectory.
In this way, it is possible to determine that a closed curve is obtained even when the locus does not intersect by determining that the locus has returned to the same object and has passed twice. Become.

Next, the details of the closed curve discrimination process based on whether or not the trajectory has passed twice on the same object executed by the information processing apparatus 100 will be described with reference to FIG. FIG. 9 is a flowchart showing an example of a closed curve discrimination process based on whether or not a trajectory passes twice on the same object in the present embodiment.
This flowchart details the processing of step S501 in FIG. 5. As an example here, processing for determining that a closed curve is obtained when a start point and an end point exist on the same object will be described.

Step S701 performs the process of extracting the coordinates of the handwritten trajectory as described in FIG.
In step S901, the locus coordinates extracted in step S701 are compared with the coordinates of the objects managed by the object management unit 201 to extract an object located under the locus.
In step S902, the extracted objects are held in the order of extraction. At this time, what is held may be the substance of the object or may be an ID indicating the object.
In step S903, it is checked whether or not the object extracted in step S901 is the same as the previous (latest) object held in step S902. If they are the same, it is determined that the object is passing (Yes in step S903), and the process proceeds to step S705. If they are not the same, it is determined that the trajectory has moved to another object (No in step S903), and the process proceeds to step S904.

  In step S904, the processing is performed only when the object is moved to another object by the determination in step S903. Here, it is checked whether the same object as the object extracted in step S901 exists in the objects passed in the past held in step S902. In this process, it can be determined whether or not the trajectory has passed the second time for the same object. If it is determined that the same object exists and it is the second pass (Yes in step S904), the process proceeds to step S704. Step S704 is a process of turning on a flag for indicating that a closed curve has been reached, as described with reference to FIG. As a result, when the same object is passed twice, it is determined that a closed curve is obtained. If the same object does not exist and is the only object that has passed only once (No in step S904), the process proceeds to step S705.

Step S705 is a process for checking whether or not the user has finished the trajectory input as described with reference to FIG. 7. If the trajectory input has been completed (Yes in step S705), the process returns to the flowchart of FIG. If the trajectory input is continued (No in step S705), the process returns to step S701, and the processing in this figure is repeated. As long as the trajectory continues to be input, the process is repeated, and it is checked whether the trajectory has passed the same object twice.
As described above, in the information processing apparatus 100 according to the present embodiment, the trajectory returns to the same object and the trajectory is regarded as closed by passing twice, so that the trajectory is not strictly closed. It becomes better and convenience is improved.
In this way, the user does not need a detailed operation of strictly closing the trajectory, and the range selection operation can be performed more easily.

(Third embodiment)
In the present embodiment, an embodiment for switching an object selected in accordance with the positional relationship between the closed curve and the start point or end point of the locus when the handwritten locus is a closed curve will be described with reference to the drawings. .
First, an example in which the selected object changes depending on the positional relationship between the closed curve and the start point or end point of the locus will be described with reference to FIG. FIG. 10 is a conceptual diagram illustrating an example in which the selected object is switched depending on the positional relationship between the closed curve and the start point or end point of the locus in the present embodiment.
Reference numerals 1001, 1003, and 1005 denote handwritten trajectories, and reference numerals 1002, 1004, and 1006 denote end points (start points or end points) of the trajectories.

  In FIG. 10A, the end point 1002 exists inside the closed curve drawn by the handwriting locus 1001. In such a case, an object within the range surrounded by the closed curve is selected.

  In FIG. 10B, the end point 1004 is present on (or near) the closed curve drawn by the handwriting locus 1003. In such a case, only the object existing under the trajectory is selected.

In FIG. 10C, the end point 1006 exists outside the closed curve drawn by the handwriting locus 1005. In such a case, an outer object excluding the range surrounded by the closed curve is selected.
This makes it possible to switch the object selection pattern more clearly reflecting the user's intention. Further, the present invention is not limited to the example in the figure, and other selection patterns may be prepared depending on the positional relationship between the closed curve and the start point or end point. Regarding the positional relationship, relative positional relationships such as up, down, left, right, upper left, lower right, etc. of the closed curve may be used.

Next, details of the process of selecting an object according to the positional relationship between the closed curve and the start point or end point of the trajectory executed by the information processing apparatus 100 will be described with reference to FIG. FIG. 11 is a flowchart showing an example of processing for selecting an object according to the positional relationship between the closed curve and the start point or end point of the locus in this embodiment.
This figure is obtained by adding processing for determining the positional relationship between the closed curve and the start point or end point of the locus to the flowchart of FIG. Steps S501 to S502 are the same as in FIG. 5, and if it is determined that the locus input in step S502 is a closed curve (Yes in step S502), the process proceeds to step S1101.

In step S1101, a process of extracting the coordinates of the handwritten locus input by the input device 107 is performed.
In step S1102, the first and last coordinates of the trajectory extracted in step S1101 are set as the start point and end point coordinates, respectively. It is determined whether the coordinates of the start point and the end point are present inside the closed curve formed by the locus extracted in step S1101. When making this determination, it is sufficient that either the start point or the end point, which is an end point, exists inside the closed curve. If it is determined in step S1102 that an end point exists inside the closed curve (Yes in step S1102), the process proceeds to step S503. As described above, step S503 is a process of selecting an object that exists within the range surrounded by the closed curve, and a selection state as shown in FIG. If it is determined in step S1102 that the end point does not exist inside the closed curve (No in step S1102), the process proceeds to step S1103.

  In step S1103, it is determined whether an end point exists outside the closed curve. If it is determined in step S1103 that the end point exists outside the closed curve (Yes in step S1103), the process proceeds to step S1104. If it is determined in step S1103 that the end point does not exist inside the closed curve (No in step S1103), the process proceeds to step S504. Step 504 is also performed when it is not a closed curve in step S502 (No in step S502). As described above, the processing content of step S504 is processing for selecting an object located under the drawn trajectory, and the selection state is as shown in FIG.

In step S1104, as shown in FIG. 10C, processing for selecting an object existing outside the closed curve is performed. The selected status is assigned to the object selected in step S1104. You may display on the screen so that it can be recognized that it has been selected.
As described above, in the information processing apparatus 100 according to the present embodiment, a plurality of object selection patterns can be switched only by an operation of changing the position of the start point or the end point when drawing a one-stroke writing selection locus.
In this way, the user can switch a plurality of object selection patterns with a simple operation.

(Fourth embodiment)
In the present embodiment, an embodiment in which a locus protrudes from a closed region formed by a closed curve will be described with reference to the drawings.
First, an example in which whether or not an object under the trajectory is selected as a selection target depends on how the trajectory protrudes from the closed region will be described with reference to FIG. FIG. 12 is a conceptual diagram showing an example of changing the object selection under the trajectory depending on how the trajectory protrudes in the present embodiment.
Reference numerals 1201, 1203, and 1205 denote handwritten trajectories, and reference numerals 1202, 1204, and 1206 denote objects located under the protruding trajectory indicated by dotted lines.

  In FIG. 12A, it is assumed that the handwriting locus 1201 has formed a closed region and then the locus protrudes, and the locus is applied to an object other than the closed region. In this case, it becomes a problem whether or not to include an object positioned under the protruding locus. As an example of determining whether or not to select, there is a method of determining whether or not to select depending on whether or not the protruding amount of the protruding locus exceeds a predetermined threshold. In the example of FIG. 12A, since the amount of protrusion of the protruding locus is within a predetermined threshold, the object 1202 under the protruding locus is not selected.

  In FIG. 12B, the amount of protrusion of the handwriting locus 1203 exceeds a predetermined threshold, and it is recognized that the user has protruded with intention, and the object under the protrusion locus 1204 is also selected.

  FIG. 12C shows a case where the amount of protrusion of the handwriting locus 1203 exceeds a predetermined threshold, but returns to the vicinity of the closed region after returning from the protruding locus. In this case, it is determined that the user has returned the trajectory in order to correct the trajectory that has protruded, and the object 1206 under the trajectory is not selected.

  Next, details of a process for selecting an object when the locus is drawn out of the closed region executed by the information processing apparatus 100 will be described with reference to FIG. FIG. 13 is a flowchart showing an example of processing for selecting an object when a locus is drawn out of the closed region in the present embodiment.

  This figure is obtained by adding processing for determining whether or not an object located under the protruding locus is selected as a selection target when the locus is drawn out of the closed region in the flowchart of FIG. Steps S501 to S503 are the same as in FIG. 5, and an object in the closed curve is selected as a selection target in step S503, and the process proceeds to step S1301 and subsequent steps.

  In step S1301, a process of calculating the amount of protrusion of the locus that protrudes from the closed region is performed. For example, it can be calculated by obtaining the distance from the coordinates of the tip of the locus that protrudes from the coordinates at which the locus intersects to form a closed curve.

  Step S1302 is a process for determining whether the amount of protrusion calculated in step S1301 is within a predetermined threshold. Here, when it is determined that the amount of protrusion is within the threshold (Yes in step S1302), the object selection process is terminated as it is. As a result, if the amount of protrusion is within the threshold value, only the object within the closed curve is selected. The selected state is as shown in FIG. Next, when it is determined that the amount of protrusion is not within the threshold (No in step S1302), the process proceeds to step S1303.

  Step S1303 is a process for determining whether the end point of the protruding locus has returned to the vicinity of the closed region. For example, it is determined whether or not the coordinates of the end point of the locus exist near the coordinates of the closed region portion formed by the locus. If it is determined that the end point exists in the vicinity of the closed region (Yes in step S1303), the object selection process is terminated as it is. As a result, if a mistake is noticed even if it protrudes and the trajectory is returned to the vicinity of the closed region, only the object within the closed curve is selected. The selected state is as shown in FIG. Next, when it is determined that the end point does not exist in the vicinity of the closed region (No in step S1303), the process proceeds to step S1304.

  In step S1304, an object located under the protruding locus is selected. As a result, when the trajectory protrudes greatly and passes over an object outside the closed region, it is recognized that the user has intentionally passed, and the object located below the protrusion trajectory is also selected. The selected state is as shown in FIG. The selected status is assigned to the object selected in step S1304. You may display on the screen so that it can be recognized that it has been selected.

As described above, in the information processing apparatus 100 according to the present embodiment, even when a locus protrudes when a closed curve is drawn, the selection state of an object existing in the protruding range can be changed in consideration of the protrusion. it can. Thus, even if it protrudes unexpectedly, it is not taken into consideration, and the object in the range that protrudes can be selected only when it protrudes intentionally, and a selection operation that matches the user's intention is possible.
Note that the method of the present invention can also be realized by executing a program installed in a computer.

100 Information processing equipment
101 bus
102 CPU
103 ROM
104 RAM
105 Storage device
106 External storage device
107 Input device
108 Output device
201 Object Management Department
202 Screen forming part
203 Screen display
204 Input processor
205 Handwriting locus detector
206 Closed curve discriminator
207 Object selector
301-304 Handwritten locus

Claims (13)

Display means for displaying a plurality of objects simultaneously;
A discriminating means for discriminating whether the input locus is a closed curve;
Selection means for determining an object to be selected from among a plurality of objects displayed by the display means;
A first acquisition unit that acquires a position of an end point of the input locus when the determination unit determines that the locus is a closed curve;
In the case where the determination unit determines that the locus is a closed curve, the selection unit selects an object determined based on a relative positional relationship between the position where the end point acquired by the first acquisition unit exists and the closed curve. The information processing apparatus is selected, and when it is determined that the locus is not a closed curve, an object displayed under the input locus is selected.   The information processing apparatus according to claim 1, wherein the determination unit determines that the locus is a closed curve when the input locus passes through the same object twice. The selection means includes
Of the end points acquired by the first acquisition means, if the end point at which the input of the trajectory is completed is inside the closed curve, the object displayed in the closed region surrounded by the closed curve is selected. The information processing apparatus according to claim 1 or 2. The selection means includes
Of the end points acquired by the first acquisition means, if the end point at which the input of the trajectory is present is on the line of the closed curve, the object displayed under the closed curve is selected. The information processing apparatus according to claim 1. The selection means includes
Of the end points acquired by the first acquisition means, an object displayed outside the closed curve is selected if the end point where the input of the trajectory is present is outside the closed curve. The information processing apparatus according to claim 1. The selection means includes
Among the acquired end points, if the end point at which the input of the trajectory is finished exists inside the closed curve, an object that is displayed in the closed region surrounded by the closed curve is selected,
If the end point is outside the closed curve, select an object displayed outside the closed curve,
3. The information processing apparatus according to claim 1, wherein an object displayed under the closed curve is selected when the end point is on the line of the closed curve. When the determination unit determines that the locus is a closed curve, the image acquisition device further includes a second acquisition unit that acquires an amount of protrusion that protrudes outside the closed region by the closed curve until the input of the locus is completed.
The information processing apparatus according to claim 3, wherein the selection unit determines an object to be selected based on whether or not the amount of protrusion acquired by the second acquisition unit is greater than a predetermined threshold. .   In addition to the object displayed in the closed region surrounded by the closed curve, the selection unit may include other objects based on whether the amount of protrusion acquired by the second acquisition unit is greater than a predetermined threshold. The information processing apparatus according to claim 7, wherein whether or not to select the object is determined. The selection means includes
When the amount of protrusion acquired by the second acquisition means is larger than a predetermined threshold, the object is displayed in a closed region surrounded by the closed curve and displayed under a locus protruding outside the closed curve. Selected objects and
When the amount of protrusion acquired by the second acquisition unit is equal to or less than the predetermined threshold, the selection unit selects only an object displayed in a closed area surrounded by the closed curve. The information processing apparatus according to claim 8.   When the trajectory that protrudes from the closed area by the closed curve traces back the trajectory and ends in the vicinity of the closed area, the selection means selects only the objects displayed in the closed area surrounded by the closed curve. The information processing apparatus according to claim 8 or 9, wherein the information processing apparatus is selected.   The information processing apparatus according to claim 1, wherein the determination unit determines that the locus is a closed curve when a part of the input locus intersects. A display process for displaying a plurality of objects simultaneously;
A determination step of determining whether the input locus is a closed curve;
A selection step of determining an object to be selected from a plurality of objects displayed by the display means;
A first acquisition step of acquiring the position of the end point of the input locus when the determination step determines that the locus is a closed curve,
In the selection step, when the trajectory is determined to be a closed curve in the determination step, an object determined based on a relative positional relationship between the position where the end point acquired in the first acquisition step exists and the closed curve is determined. A method for controlling an information processing apparatus, comprising: selecting an object displayed under the input locus when the locus is not a closed curve.   A program for causing a computer to execute each step of the control method for the information processing apparatus according to claim 12.

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