CN110007838B - Processing method, device and equipment for erasing control - Google Patents

Processing method, device and equipment for erasing control Download PDF

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Publication number
CN110007838B
CN110007838B CN201910262723.1A CN201910262723A CN110007838B CN 110007838 B CN110007838 B CN 110007838B CN 201910262723 A CN201910262723 A CN 201910262723A CN 110007838 B CN110007838 B CN 110007838B
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control
erasing
offset angle
moving track
angle
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CN110007838A (en
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张继雄
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Priority to CN201910262723.1A priority Critical patent/CN110007838B/en
Publication of CN110007838A publication Critical patent/CN110007838A/en
Priority to PCT/CN2020/082851 priority patent/WO2020200255A1/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04845Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour

Abstract

The invention discloses a method, a device and equipment for processing an erasing control. Wherein, the method comprises the following steps: detecting a moving track of the erasing control to move from a first position to a second position; obtaining the offset angle of the erasing control based on the moving track, wherein the offset angle is an included angle between the erasing control and the vertical direction; based on the offset angle, a bitmap of the erasure control is displayed at the second location. The invention solves the technical problems of fixed bitmap display direction and poor erasing effect of the erasing control in the prior art.

Description

Processing method, device and equipment for erasing control
Technical Field
The invention relates to the field of intelligent interaction equipment, in particular to a method, a device and equipment for processing an erasing control.
Background
In the existing scheme, an erasing control (e.g. an eraser) is used in IWB whiteboard software for erasing, the eraser is moved by a bitmap, the bitmap is rectangular, the direction of the eraser is generally fixed, for example, perpendicular to the horizontal direction, and writing handwriting is relatively stiff when the writing is performed through the erasing control, and the physical effect is poor.
Aiming at the problems that the bitmap display direction of an erasing control in the prior art is fixed and the erasing effect is poor, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a processing method, a device and equipment for erasing a control, and aims to at least solve the technical problems that the bitmap display direction of the erasing control is fixed and the erasing effect is poor in the prior art.
According to an aspect of the embodiments of the present invention, there is provided a method for processing an erasure control, including: detecting a moving track of the erasing control to move from a first position to a second position; obtaining the offset angle of the erasing control based on the moving track, wherein the offset angle is an included angle between the erasing control and the vertical direction; based on the offset angle, a bitmap of the erasure control is displayed at the second location.
Further, obtaining an offset angle of the erasing control based on the moving track includes: obtaining a motion angle of the moving track based on the moving track, wherein the motion angle is an included angle between the moving track and the horizontal direction; based on the angle of motion, an offset angle is obtained.
Further, obtaining a motion angle of the movement track based on the movement track, including: acquiring target pixel points meeting preset conditions in the moving track; and obtaining a motion angle based on the coordinate value of the target pixel point.
Further, acquiring a target pixel point meeting a preset condition in the moving track includes: acquiring the time of detecting each pixel point in the moving track; and acquiring two pixel points corresponding to the latest time based on the time of each pixel point to obtain a target pixel point.
Further, based on the coordinate value of the target pixel point, obtaining a motion angle, including: determining a straight line based on the coordinate values of the two pixel points; and acquiring the slope of the straight line to obtain the motion angle.
Further, before displaying the bitmap of the erasure control at the second location based on the offset angle, the method further includes: comparing the offset angle with a preset threshold value; and displaying the bitmap of the erasing control at the second position based on the offset angle under the condition that the offset angle is less than or equal to the preset threshold value.
Further, displaying a bitmap of the erasure control at a second location based on the offset angle, comprising: controlling the erasing control to rotate based on the offset angle of the erasing control; and displaying the bitmap of the rotated erasing control at the second position.
According to another aspect of the embodiments of the present invention, there is also provided a method for processing an erasure control, including: displaying a bitmap of an erasure control at a first location; after the moving track of the erasing control is detected, a bitmap of the erasing control is displayed at a second position based on the offset angle of the erasing control, wherein the moving track moves from the first position to the second position, the offset angle is obtained based on the moving track, and the offset angle is an included angle between the erasing control and the vertical direction.
According to another aspect of the embodiments of the present invention, there is also provided a device for processing an erasure control, including: the detection module is used for detecting a moving track of the erasing control moving from the first position to the second position; the processing module is used for obtaining the offset angle of the erasing control based on the moving track, wherein the offset angle is an included angle between the erasing control and the vertical direction; and the display module is used for displaying the bitmap of the erasing control at the second position based on the offset angle.
According to another aspect of the embodiments of the present invention, there is also provided a device for processing an erasure control, including: the first display module is used for displaying the bitmap of the erasing control at a first position; and the second display module is used for displaying the bitmap of the erasing control at a second position based on the offset angle of the erasing control after the moving track of the erasing control is detected, wherein the moving track moves from the first position to the second position, the offset angle is obtained based on the moving track, and the offset angle is an included angle between the erasing control and the vertical direction.
According to another aspect of the embodiments of the present invention, there is also provided a processing device for erasing a control, including: the detection device is used for detecting a moving track of the erasing control to move from the first position to the second position; and the processor is connected with the detection device and used for obtaining the offset angle of the erasing control based on the moving track and controlling the bitmap of the erasing control to be displayed at the second position based on the offset angle, wherein the offset angle is an included angle between the erasing control and the vertical direction.
According to another aspect of the embodiments of the present invention, there is also provided a processing device for erasing a control, including: a display for displaying a bitmap of an erase control at a first location; the detection device is used for detecting a moving track of the erasing control, wherein the moving track moves from a first position to a second position; and the processor is connected with the detection device and the display and is used for controlling the display to display the bitmap of the erasing control at a second position based on the offset angle of the erasing control after the moving track of the erasing control is detected, wherein the offset angle is obtained based on the moving track, and the offset angle is an included angle between the erasing control and the vertical direction.
According to another aspect of the embodiments of the present invention, a storage medium is further provided, where the storage medium includes a stored program, and when the program runs, a device on which the storage medium is located is controlled to execute the processing method of the erasure control.
According to another aspect of the embodiments of the present invention, a processor is further provided, where the processor is configured to execute a program, where the program executes the above processing method for erasing the control.
In the embodiment of the invention, after the moving track of the erasing control moving from the first position to the second position is detected, the offset angle of the erasing control can be obtained based on the moving track, and the bitmap of the erasing control is further displayed at the second position based on the offset angle, so that the direction of the erasing control can be controlled according to the moving track of the erasing control. Compared with the prior art, the direction of erasing the control is no longer a fixed direction, and dynamic calculation is carried out while different touches are carried out, so that the direction of erasing the control is always perpendicular to the moving direction of the moving track, a more vivid physical effect is obtained, the user experience is improved, the interesting technical effect of software is increased, and the technical problems that the bitmap display direction of erasing the control in the prior art is fixed and the erasing effect is poor are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method of processing an erase control according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating an alternative method for determining a motion angle and an offset angle according to a target pixel point according to an embodiment of the present invention;
FIG. 3 is a flow diagram of a method for processing an alternative erase control in accordance with an embodiment of the present invention;
FIG. 4 is a flow diagram of another method of processing an erase control according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a processing apparatus for erasing a control according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another erasing control processing device according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a processing device for erasing a control according to an embodiment of the present invention; and
fig. 8 is a schematic structural diagram of another processing device for erasing a control according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
In accordance with an embodiment of the present invention, there is provided an embodiment of a method for processing an erasure control, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer-executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
The processing method of the book erasing control provided in this embodiment may be executed by a processing device of the erasing control, the processing device of the erasing control may be implemented in a software and/or hardware manner, and the processing device of the erasing control may be formed by two or more physical entities or may be formed by one physical entity. The processing equipment for erasing the control can be a computer, a mobile phone, a tablet, a projector or an intelligent interactive tablet and the like. In the embodiment, a description is given by taking an intelligent interactive panel as processing equipment for erasing a control as an example, where the intelligent interactive panel may be an integrated device that controls content displayed on a display panel and realizes man-machine interaction operations through a touch technology, and integrates one or more functions of a projector, an electronic whiteboard, a curtain, a sound, a television, a video conference terminal, and the like.
In an embodiment, the smart interactive tablet establishes a data connection with at least one external device. Among these, external devices include, but are not limited to: mobile phones, notebook computers, USB flash disks, tablet computers, desktop computers, and the like. The embodiment of the communication mode of the data connection between the external device and the intelligent interactive tablet is not limited, and the communication mode can be a USB connection mode, an Internet mode, a local area network mode, a Bluetooth mode, a Wi-Fi mode or a ZigBee mode and the like.
Further, when the smart interactive tablet performs data interaction with at least one external device, the screen projection data is sent to the smart interactive tablet, so that the external device, which displays the screen projection content of the screen projection data, of the smart interactive tablet serves as a screen projection client.
Optionally, the screen projection client and/or the intelligent interaction tablet are installed with screen projection application software, and the screen projection application software may be installed in the screen projection client and/or the intelligent interaction tablet in advance, or may be downloaded from a third-party device or a server and installed for use when the screen projection client and/or the intelligent interaction tablet starts a screen projection application. The third-party device is not limited in the embodiment. Specifically, the screen-casting application software is used for acquiring content displayed by the screen-casting client, using the content as screen-casting data, and instructing the intelligent interactive tablet to display the content. In the embodiment, the screen projection client and the intelligent interactive tablet are exemplified to be simultaneously installed with screen projection application software. The screen projection application software of the screen projection client is used for acquiring screen projection data and directly or indirectly sending the screen projection data to the intelligent interactive panel. If the screen projection client is indirectly sent, the screen projection client can be sent to the intelligent interaction panel through the transfer equipment, and the transfer equipment can be a wireless screen transmission device or other equipment with a data transfer/processing function. And the screen projection application software of the intelligent interactive panel is used for receiving screen projection data and converting the screen projection data into corresponding contents, so that the intelligent interactive panel can conveniently display the contents. It should be noted that the resolution ratios of the display screen of the screen projection client and the display screen of the intelligent interactive panel are different, and the screen projection data is obtained based on the resolution ratio of the screen projection client, so that in order to display the screen projection data in the display screen of the intelligent interactive panel, the screen projection application software needs to determine a screen mapping relationship according to the resolution ratios of the display screen of the screen projection client and the display screen of the intelligent interactive panel, and then convert the screen projection data according to the screen mapping relationship to obtain screen projection content. In the embodiment, the display contents of the screen shot content and the screen shot data are substantially the same, and only the resolution is different.
Further, the screen projection data is in a picture format, and may be screen capture data obtained by screen capturing display content of the screen projection client, or a presentation (Microsoft Office PowerPoint, PPT).
In the embodiment, the screen projection client is a notebook computer, screen projection data is PPT in a projection state, and interaction between the notebook computer and the intelligent interactive panel is taken as an example to exemplarily describe the present invention.
Fig. 1 is a flowchart of a processing method for erasing a control according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step S102, detecting a moving track of the erasing control moving from the first position to the second position.
Specifically, the erasing control may be a control for erasing the writing displayed on the touch screen, for example, in the present embodiment, the erasing control may be an eraser control.
In an alternative scheme, when a user needs to erase handwriting displayed on a touch screen, a palm of the user may move on the touch screen to generate corresponding touch data, and the palm moves from one position to another position, so that the eraser may also move from one position (i.e., the first position) to another position (i.e., the second position), where the position may be a coordinate point where the palm generates the touch data and may be a center point of the eraser, and therefore, a movement trajectory of the palm of the user, that is, a movement trajectory of the eraser may be determined.
And step S104, obtaining the offset angle of the erasing control based on the moving track, wherein the offset angle is the included angle between the erasing control and the vertical direction.
Specifically, the direction of the eraser can be determined by an included angle between a vertical normal of the eraser and the vertical direction, and the included angle between the vertical normal of the eraser and the vertical direction is 0 degree, so that the direction of the eraser can be determined to be vertical to the horizontal direction; the included angle between the vertical normal line of the eraser and the vertical direction is 90 degrees, so that the direction of the eraser can be determined to be the horizontal direction.
In an alternative scheme, in order to obtain a more realistic physical effect, the direction of the eraser can be adjusted in real time according to the movement track of the palm of the user in the process of moving the palm, so that the direction of the eraser is perpendicular to the movement track of the eraser.
Optionally, the offset angle of the eraser may be determined according to the movement direction of the movement track generated in the process of moving the palm of the user, so as to determine the direction of the eraser, specifically including steps S1042 to S1044:
step S1042, obtaining a movement angle of the movement trajectory based on the movement trajectory, where the movement angle is an included angle between the movement trajectory and the horizontal direction.
In an optional scheme, during the movement of the palm of the user, a plurality of touch data are generated, and the movement angle of the movement trajectory can be determined by performing statistical processing on the plurality of touch data, so that the movement direction of the movement trajectory is determined. Specifically, the following steps S110 to S112 may be implemented:
step S110, a target pixel point satisfying a preset condition in the moving trajectory is obtained.
Optionally, in the process of performing touch erasing on the intelligent interactive tablet, the whiteboard software system may periodically return a touch Event to the application program, and in order to accurately determine the motion direction of the moving track, a target pixel point may be obtained through the following steps S1102 to S1104:
step S1102, acquiring a time when each pixel point in the movement trajectory is detected.
Step S1104, based on the time of each pixel, obtaining two pixels corresponding to the latest time, and obtaining a target pixel.
In an optional scheme, in acquiring a series of events, the last two touch points E1 and E2 may be selected as target pixel points, and a X, Y coordinate system is established, where the Y-axis coordinate is downward, as shown in fig. 2, the coordinate values of E1 are (X1, Y1), and the coordinate values of E2 are (X2, Y2).
Step S112, obtaining a motion angle based on the coordinate value of the target pixel point.
Alternatively, the movement angle of the movement locus of the palm of the user can be calculated by using the geometrical principle. The specific steps include steps S1122 to S1124:
in step S1122, a straight line is determined based on the coordinate values of the two pixel points.
In step S1124, the slope of the straight line is obtained to obtain the movement angle.
In an optional scheme, as shown in fig. 2, after the coordinate values of E1 are (X1, Y1) and the coordinate values of E2 are (X2, Y2), a line segment E1E2 may be determined based on the two coordinate values, that is, a straight line where two pixels E1 and E2 are located is determined, and further, an included angle a between the line segment E1E2 and the X axis is obtained by calculating a slope of the straight line, that is, the motion angle is obtained.
In step S1044, an offset angle is obtained based on the movement angle.
In an alternative scheme, as shown in fig. 2, the direction of the eraser should be perpendicular to the line segment E1E2, and by using the principle of calculation, it can be determined that the offset angle of the eraser ≤ B (fig. 2 dashed line included angle) should be equal to ≤.
And step S106, comparing the offset angle with a preset threshold value.
Specifically, the preset threshold may be a predefined threshold K to prevent the touch data from being irregular and greatly fluctuated to generate the eraser jitter.
And S108, under the condition that the offset angle is smaller than or equal to the preset threshold, displaying the bitmap of the erasing control at a second position based on the offset angle.
In an optional scheme, after the offset angle B of the eraser is calculated, whether the offset angle needs to be filtered or not can be judged through a predefined threshold value K, if the offset angle deviation is large, the offset angle needs to be filtered, the direction of the eraser does not need to be changed, and the moving track is continuously detected.
Optionally, the drawing process of the eraser specifically includes steps S1082 to S1084:
and step S1082, controlling the erasing control to rotate based on the offset angle of the erasing control.
And step S1084, displaying the rotated bitmap of the erasing control at the second position.
In an alternative scheme, after the offset angle B of the eraser is calculated, the offset angle can be properly filtered through a predefined threshold value K to reduce the eraser jitter. The offset angle after filtering can be directly applied to the display of the eraser. Through a drawing API (Application Programming Interface) of a Canvas of the system, the eraser can be drawn after rotating the angle B first, so that the final effect of the eraser can be drawn.
In the above embodiment of the present invention, after the movement track of the erasing control moving from the first position to the second position is detected, the offset angle of the erasing control may be obtained based on the movement track, and the bitmap of the erasing control is further displayed at the second position based on the offset angle, so that the direction of the erasing control may be controlled according to the movement track of the erasing control. Compared with the prior art, the direction of erasing the control is no longer a fixed direction, and dynamic calculation is carried out while different touches are carried out, so that the direction of erasing the control is always perpendicular to the moving direction of the moving track, a more vivid physical effect is obtained, the user experience is improved, the interesting technical effect of software is increased, and the technical problems that the bitmap display direction of erasing the control in the prior art is fixed and the erasing effect is poor are solved.
For example, a preferred embodiment of the present invention is described by taking an eraser as an example, and fig. 3 is a flowchart of a processing method of an optional erasing control according to an embodiment of the present invention, as shown in fig. 3:
in step S31, touch point data is acquired.
Optionally, an eraser function is called in whiteboard software of the intelligent interactive tablet, and touch erasing is performed, at this time, the system returns a touch Event to the application program periodically.
In step S32, a movement angle is calculated from the touch point data.
Alternatively, in the captured series of events, the last two touch points E1, E2 may be fetched and a X, Y coordinate system established (Y-axis coordinate down). The angle A between the segment E1E2 and the X axis can be calculated by E1(X1, Y1) and E2(X2, Y2).
In step S33, an eraser offset angle is calculated.
Alternatively, the direction of the eraser should be perpendicular to the line segment E1E2, and the offset angle B of the eraser at the moment can be converted into the angle A according to the geometry.
In step S34, it is determined whether or not angle data is to be filtered.
Optionally, after the offset angle B of the eraser is calculated, a series of eraser offset angles can be obtained by continuously repeating the steps. In order to prevent the eraser jitter generated by the irregularity and the large fluctuation of the touch data, the angle data may be appropriately filtered to reduce the eraser jitter. If it is determined that the angle data needs to be filtered, proceeding to step S36; if it is determined that the angle data does not need to be filtered, the process proceeds to step S35.
And step S35, drawing the eraser according to the offset angle.
Optionally, the final effect of the eraser can be obtained by firstly rotating the eraser by the angle B and then drawing through the drawing API of the systematic Canvas.
In step S36, it is determined whether the touch is ended.
Alternatively, if it is determined that the touch is not finished, returning to step S31, and performing dynamic calculation while continuing the touch, the final eraser direction can be made always perpendicular to the handwriting movement direction, so as to achieve a realistic physical effect. If it is determined that the touch has ended, the process flow ends.
By the scheme provided by the embodiment of the invention, the real motion direction of the current track can be calculated according to the latest point data by acquiring the touch track data of the user, and the direction of the eraser is calculated according to the motion direction and is drawn and displayed. Through this scheme, can let the eraser obtain more lifelike physical effect, promote user experience, increase interest.
Example 2
There is also provided, in accordance with an embodiment of the present invention, an embodiment of a method of processing an erasure control, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
The processing method of the book erasing control provided in this embodiment may be executed by a processing device of the erasing control, the processing device of the erasing control may be implemented in a software and/or hardware manner, and the processing device of the erasing control may be formed by two or more physical entities or may be formed by one physical entity. The processing equipment for erasing the control can be a computer, a mobile phone, a tablet, a projector or an intelligent interactive tablet and the like. In the embodiment, a processing device in which an intelligent interactive tablet is used as an erasing control is described as an example. In the embodiment, the screen projection client is a notebook computer, screen projection data is PPT in a projection state, and interaction between the notebook computer and the intelligent interactive panel is taken as an example to exemplarily describe the present invention.
Fig. 4 is a flowchart of another erasing control processing method according to an embodiment of the present invention, as shown in fig. 4, the method includes the following steps:
step S402, displaying the bitmap of the erasing control at the first position.
Specifically, the erasing control may be a control for erasing the writing displayed on the touch screen, for example, in the present embodiment, the erasing control may be an eraser control.
In an alternative scheme, when a user needs to erase handwriting displayed on a touch screen, a palm of the user may move on the touch screen to generate corresponding touch data, and the palm moves from one position to another position, so that the eraser may also move from one position (i.e., the first position) to another position (i.e., the second position), where the position may be a coordinate point where the palm generates the touch data and may be a center point of the eraser, and therefore, a movement trajectory of the palm of the user, that is, a movement trajectory of the eraser may be determined.
Step S404, after the moving track of the erasing control is detected, based on the offset angle of the erasing control, displaying the bitmap of the erasing control at the second position, wherein the moving track moves from the first position to the second position, the offset angle is obtained based on the moving track, and the offset angle is the included angle between the erasing control and the vertical direction.
Specifically, the direction of the eraser can be determined by an included angle between a vertical normal of the eraser and the vertical direction, and the included angle between the vertical normal of the eraser and the vertical direction is 0 degree, so that the direction of the eraser can be determined to be vertical to the horizontal direction; the included angle between the vertical normal line of the eraser and the vertical direction is 90 degrees, so that the direction of the eraser can be determined to be the horizontal direction.
In an alternative scheme, in order to obtain a more realistic physical effect, the direction of the eraser can be adjusted in real time according to the movement track of the palm of the user in the process of moving the palm, so that the direction of the eraser is perpendicular to the movement track of the eraser.
In the above embodiment of the present invention, the bitmap of the erasure control is displayed at the first position, after the movement track of the erasure control moving from the first position to the second position is detected, the offset angle of the erasure control can be obtained based on the movement track, and the bitmap of the erasure control is further displayed at the second position based on the offset angle, so that the direction of the erasure control can be controlled according to the movement track of the erasure control. Compared with the prior art, the direction of erasing the control is no longer a fixed direction, and dynamic calculation is carried out while different touches are carried out, so that the direction of erasing the control is always perpendicular to the moving direction of the moving track, a more vivid physical effect is obtained, the user experience is improved, the interesting technical effect of software is increased, and the technical problems that the bitmap display direction of erasing the control in the prior art is fixed and the erasing effect is poor are solved.
Example 3
According to the embodiment of the invention, the embodiment of the processing device for the erasing control is also provided. The processing apparatus for erasing a control provided in this embodiment may be integrated in a processing device for erasing a control, where the processing device for erasing a control may be formed by two or more physical entities or may be formed by one physical entity, and the processing device for erasing a control may be a computer, a mobile phone, a tablet, a projector, or an intelligent interactive tablet, etc. In the embodiment, a processing device in which an intelligent interactive tablet is used as an erasing control is described as an example.
Fig. 5 is a schematic structural diagram of a device for processing an erasure control according to an embodiment of the present invention, as shown in fig. 5, the device includes: a detection module 52, a processing module 54, and a display module 56.
The detection module 54 is configured to detect a moving track of the erasing control moving from the first position to the second position; the processing module 54 is configured to obtain an offset angle of the erasing control based on the moving track, where the offset angle is an included angle between the erasing control and a vertical direction; the display module 56 is configured to obtain a movement angle of the movement track based on the movement track, where the movement angle is an included angle between the movement track and the horizontal direction.
In the above embodiment of the present invention, after the movement track of the erasing control moving from the first position to the second position is detected, the offset angle of the erasing control may be obtained based on the movement track, and the bitmap of the erasing control is further displayed at the second position based on the offset angle, so that the direction of the erasing control may be controlled according to the movement track of the erasing control. Compared with the prior art, the direction of erasing the control is no longer a fixed direction, and dynamic calculation is carried out while different touches are carried out, so that the direction of erasing the control is always perpendicular to the moving direction of the moving track, a more vivid physical effect is obtained, the user experience is improved, the interesting technical effect of software is increased, and the technical problems that the bitmap display direction of erasing the control in the prior art is fixed and the erasing effect is poor are solved.
In the basis of the above embodiment, the processing module includes: the first processing submodule is used for obtaining a motion angle of the moving track based on the moving track, wherein the motion angle is an included angle between the moving track and the horizontal direction; and the second processing submodule is used for obtaining the offset angle based on the motion angle.
In the basis of the above embodiment, the first processing sub-module includes: the acquisition unit is used for acquiring target pixel points meeting preset conditions in the moving track; and the processing unit is used for obtaining the motion angle based on the coordinate value of the target pixel point.
In the basis of the above embodiment, the acquisition unit includes: the first acquiring subunit is used for acquiring the time of detecting each pixel point in the moving track; and the second obtaining subunit is used for obtaining two pixel points corresponding to the latest time based on the time of each pixel point to obtain a target pixel point.
In the basis of the above embodiment, the processing unit includes: the determining subunit is used for determining a straight line based on the coordinate values of the two pixel points; and the processing subunit is used for acquiring the slope of the straight line to obtain the motion angle.
In the basis of the above embodiment, the apparatus further comprises: the comparison module is used for comparing the offset angle with a preset threshold value; the display module is further used for displaying the bitmap of the erasing control at the second position based on the offset angle under the condition that the offset angle is smaller than or equal to the preset threshold value.
In the basis of the above embodiment, the display module includes: the control submodule is used for controlling the erasing control to rotate based on the offset angle of the erasing control; and the display sub-module is used for displaying the bitmap of the rotated erasing control at the second position.
The processing device for erasing the control can be used for executing the processing method for erasing the control provided in the embodiment 1, and has corresponding functions and beneficial effects.
Example 4
According to the embodiment of the invention, the embodiment of the processing device for the erasing control is also provided. The processing apparatus for erasing a control provided in this embodiment may be integrated in a processing device for erasing a control, where the processing device for erasing a control may be formed by two or more physical entities or may be formed by one physical entity, and the processing device for erasing a control may be a computer, a mobile phone, a tablet, a projector, or an intelligent interactive tablet, etc. In the embodiment, a processing device in which an intelligent interactive tablet is used as an erasing control is described as an example.
Fig. 6 is a schematic structural diagram of another erasing control processing apparatus according to an embodiment of the present invention, and as shown in fig. 6, the apparatus includes: a first display module 62 and a second display module 64.
The first display module 62 is configured to display a bitmap of the erasure control at a first position; the second display module 64 is configured to, after detecting a moving track of the erasing control, display a bitmap of the erasing control at a second position based on an offset angle of the erasing control, where the moving track moves from the first position to the second position, the offset angle is obtained based on the moving track, and the offset angle is an included angle between the erasing control and the vertical direction.
In the above embodiment of the present invention, the bitmap of the erasure control is displayed at the first position, after the movement track of the erasure control moving from the first position to the second position is detected, the offset angle of the erasure control can be obtained based on the movement track, and the bitmap of the erasure control is further displayed at the second position based on the offset angle, so that the direction of the erasure control can be controlled according to the movement track of the erasure control. Compared with the prior art, the direction of erasing the control is no longer a fixed direction, and dynamic calculation is carried out while different touches are carried out, so that the direction of erasing the control is always perpendicular to the moving direction of the moving track, a more vivid physical effect is obtained, the user experience is improved, the interesting technical effect of software is increased, and the technical problems that the bitmap display direction of erasing the control in the prior art is fixed and the erasing effect is poor are solved.
The processing device for erasing the control can be used for executing the processing method for erasing the control provided in the embodiment 2, and has corresponding functions and beneficial effects.
Example 5
According to an embodiment of the present invention, an embodiment of a processing device for erasing a control is provided.
Fig. 7 is a schematic structural diagram of a processing device for erasing a control according to an embodiment of the present invention, and as shown in fig. 7, the device includes: a detection device 10 and a processor 20. The number of processors 20 in the processing device of the erasure control can be one or more, and one processor 20 is taken as an example in fig. 7. The detection device 10 and the processor 20 of the processing device of the erasure control can be connected by a bus or other means, and fig. 7 illustrates the connection by the bus as an example. In an embodiment, the processing device for erasing the control may be a computer, a mobile phone, a tablet, a projector, or an intelligent interactive tablet. In the embodiment, description is given by taking a processing device for erasing a control as an example of an intelligent interactive tablet.
The detection device 10 may be a detection device 10 for implementing a touch function in the smart interactive tablet, which may be a capacitive sensor, an electromagnetic sensor or an infrared touch frame, and the detection device 10 is configured to detect a touch operation on a display screen of the smart interactive tablet and send a response signal to the processor 20 or other devices. Optionally, when the detection device 10 is an infrared touch frame, the infrared touch frame is disposed around the display screen of the smart interactive tablet, and may also be configured to receive an infrared signal and send the infrared signal to the processor 20 or other devices.
The processor 20 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory, that is, implements the above-described processing method of the erasure control. The memory in the processing device of the erasure control can be one or more, and the memory, as a computer readable storage medium, can be used for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the processing method of the erasure control according to any embodiment of the present invention (for example, the detection module 52, the processing module 54, and the display module 56 in the processing device of the erasure control). The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory located remotely from the processor 20, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Specifically, in an embodiment, the detecting device 10 is configured to detect a moving track of the erasing control moving from the first position to the second position; when the processor 20 executes one or more programs stored in the memory, the following operations are implemented: obtaining the offset angle of the erasing control based on the moving track, wherein the offset angle is an included angle between the erasing control and the vertical direction; and obtaining a motion angle of the moving track based on the moving track, wherein the motion angle is an included angle between the moving track and the horizontal direction.
In the embodiment, the one or more processors 20 implement the following operations to obtain the offset angle of the erase control: obtaining a motion angle of the moving track based on the moving track, wherein the motion angle is an included angle between the moving track and the horizontal direction; based on the angle of motion, an offset angle is obtained.
In the basis of the above embodiment, in order to obtain the motion angle of the movement trajectory, the one or more processors 20 implement the following operations: acquiring target pixel points meeting preset conditions in the moving track; and obtaining a motion angle based on the coordinate value of the target pixel point.
In the basis of the foregoing embodiment, in order to obtain a target pixel point, one or more processors 20 specifically implement the following operations: acquiring the time of detecting each pixel point in the moving track; and acquiring two pixel points corresponding to the latest time based on the time of each pixel point to obtain a target pixel point.
In the basis of the above embodiment, the one or more processors 20 implement the following operations in order to obtain the motion angle: determining a straight line based on the coordinate values of the two pixel points; and acquiring the slope of the straight line to obtain the motion angle.
In the base of the above embodiment, to implement displaying the bitmap of the erasure control at the second location, the one or more processors 20 implement the following operations: comparing the offset angle with a preset threshold value; and displaying the bitmap of the erasing control at the second position based on the offset angle under the condition that the offset angle is less than or equal to the preset threshold value.
In the base of the above embodiment, to implement displaying the bitmap of the erasure control at the second location, the one or more processors 20 implement the following operations: controlling the erasing control to rotate based on the offset angle of the erasing control; and displaying the bitmap of the rotated erasing control at the second position.
The processing device for erasing the control can be used for executing the processing method for erasing the control provided in the embodiment 1, and has corresponding functions and beneficial effects.
Example 6
According to the embodiment of the invention, the embodiment of the processing equipment for erasing the control is also provided.
Fig. 8 is a schematic structural diagram of another processing device for erasing a control according to an embodiment of the present invention, and as shown in fig. 8, the device includes: a display 30, a detection device 10 and a processor 20. The display 30, the detection device 10 and the processor 20 of the processing device of the erasure control can be connected by a bus or other means, and the connection by the bus is taken as an example in fig. 8.
The display 30 is a touch-enabled display 30, which may be a capacitive screen, an electromagnetic screen, or an infrared screen. In general, the display 30 is used for displaying data according to an instruction of the processor 20, and also for receiving a touch operation applied to the display 30 and transmitting a corresponding signal to the processor 20 or other devices. Optionally, when the display 30 is an infrared screen, the display further includes an infrared touch frame, and the infrared touch frame is disposed around the display 30, and may also be configured to receive an infrared signal and send the infrared signal to the processor 20 or other devices.
In particular, in an embodiment, the display 30 is configured to display a bitmap of the erase control at a first location; the detection device 10 is used for detecting a moving track of the erasing control moving from a first position to a second position; when the processor 20 executes one or more programs stored in the memory, the following operations are implemented: after the moving track of the erasing control is detected, controlling the display to display the bitmap of the erasing control at the second position based on the offset angle of the erasing control, wherein the offset angle is obtained based on the moving track, and the offset angle is an included angle between the erasing control and the vertical direction.
The processing device for erasing the control can be used for executing the processing method for erasing the control provided in the embodiment 2, and has corresponding functions and beneficial effects.
Example 7
According to an embodiment of the present invention, an embodiment of a storage medium is further provided, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the processing method of the erasure control provided in any of the above embodiments.
Example 8
According to an embodiment of the present invention, an embodiment of a processor is further provided, where the processor is configured to run a program, and the program executes the processing method for erasing the control provided in any of the above embodiments when running.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (13)

1. A processing method for erasing a control is characterized by comprising the following steps:
detecting a moving track of the erasing control to move from a first position to a second position;
obtaining an offset angle of the erasing control based on the moving track, wherein the offset angle is an included angle between a vertical normal line of the erasing control and a vertical direction;
displaying a bitmap of the erasure control at the second location based on the offset angle.
2. The method of claim 1, wherein obtaining an offset angle of the erasure control based on the movement trajectory comprises:
obtaining a motion angle of the moving track based on the moving track, wherein the motion angle is an included angle between the moving track and the horizontal direction;
and obtaining the offset angle based on the motion angle.
3. The method of claim 2, wherein obtaining the motion angle of the movement track based on the movement track comprises:
acquiring target pixel points meeting preset conditions in the moving track;
and obtaining the motion angle based on the coordinate value of the target pixel point.
4. The method of claim 3, wherein obtaining a target pixel point in the movement track that meets a preset condition comprises:
acquiring the time of detecting each pixel point in the moving track;
and acquiring two pixel points corresponding to the latest time based on the time of each pixel point to obtain the target pixel point.
5. The method of claim 4, wherein obtaining the motion angle based on the coordinate value of the target pixel point comprises:
determining a straight line based on the coordinate values of the two pixel points;
and obtaining the slope of the straight line to obtain the motion angle.
6. The method of claim 1, wherein prior to displaying the bitmap of the erasure control at the second location based on the offset angle, the method further comprises:
comparing the offset angle with a preset threshold;
and displaying a bitmap of the erasing control at the second position based on the offset angle under the condition that the offset angle is smaller than or equal to the preset threshold value.
7. The method of claim 1, wherein displaying a bitmap of the erasure control at the second location based on the offset angle comprises:
controlling the erasing control to rotate based on the offset angle of the erasing control;
and displaying the bitmap of the rotated erasing control at the second position.
8. A processing method for erasing a control is characterized by comprising the following steps:
displaying a bitmap of an erasure control at a first location;
after the moving track of the erasing control is detected, based on the offset angle of the erasing control, the bitmap of the erasing control is displayed at a second position, wherein the moving track moves from the first position to the second position, the offset angle is obtained based on the moving track, and the offset angle is an included angle between a vertical normal line of the erasing control and the vertical direction.
9. A processing apparatus for erasing a control, comprising:
the detection module is used for detecting a moving track of the erasing control moving from the first position to the second position;
the processing module is used for obtaining an offset angle of the erasing control based on the moving track, wherein the offset angle is an included angle between a vertical normal line of the erasing control and a vertical direction;
and the display module is used for displaying the bitmap of the erasing control at the second position based on the offset angle.
10. A processing apparatus for erasing a control, comprising:
the first display module is used for displaying the bitmap of the erasing control at a first position;
and the second display module is used for displaying the bitmap of the erasing control at a second position based on the offset angle of the erasing control after the moving track of the erasing control is detected, wherein the moving track moves from the first position to the second position, the offset angle is obtained based on the moving track, and the offset angle is an included angle between the vertical normal of the erasing control and the vertical direction.
11. A processing device for erasing a control, comprising:
the detection device is used for detecting a moving track of the erasing control to move from the first position to the second position;
and the processor is connected with the detection device and used for obtaining the offset angle of the erasing control based on the moving track and controlling the bitmap of the erasing control to be displayed at the second position based on the offset angle, wherein the offset angle is an included angle between the vertical normal of the erasing control and the vertical direction.
12. A processing device for erasing a control, comprising:
a display for displaying a bitmap of an erase control at a first location;
the detection device is used for detecting a moving track of the erasing control, wherein the moving track moves from the first position to the second position;
and the processor is connected with the detection device and the display and used for controlling the display to display the bitmap of the erasing control at a second position based on the offset angle of the erasing control after detecting the moving track of the erasing control, wherein the offset angle is obtained based on the moving track, and the offset angle is an included angle between the vertical normal and the vertical direction of the erasing control.
13. A storage medium, characterized in that the storage medium includes a stored program, and when the program runs, the device where the storage medium is located is controlled to execute the processing method of the erasure control in any one of claims 1 to 8.
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