CN110007838A - Processing method, device and equipment for erasing control - Google Patents

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 device for erasing controls

technical field

The present invention relates to the field of intelligent interactive devices, and in particular, to a processing method, device and device for erasing controls.

Background technique

In the existing solution, the eraser control (for example, the eraser) is used to erase in the IWB whiteboard software. The movement of the eraser is to move a bitmap, the bitmap is rectangular, and the direction of the eraser is generally fixed. , for example, perpendicular to the horizontal direction, it will appear stiffer and less physically effective when writing handwriting through the eraser control.

Aiming at the problem that the bitmap display direction of the erasing control in the prior art is fixed and the erasing effect is poor, no effective solution has been proposed yet.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a processing method, apparatus and device for erasing controls, so as to at least solve the technical problem in the prior art that the bitmap display direction of the erasing controls is fixed and the erasing effect is poor.

According to an aspect of the embodiments of the present invention, a method for processing an erasing control is provided, including: detecting a movement trajectory of the erasing control from a first position to a second position; and obtaining an offset of the erasing control based on the movement trajectory angle, where the offset angle is the included angle between the eraser control and the vertical direction; based on the offset angle, the bitmap of the eraser control is displayed at the second position.

Further, obtaining the offset angle of the erasing control based on the movement track, including: obtaining the movement angle of the movement track based on the movement track, wherein the movement angle is the angle between the movement track and the horizontal direction; based on the movement angle, obtaining the offset angle.

Further, obtaining the movement angle of the movement track based on the movement track includes: obtaining a target pixel point in the movement track that meets a preset condition; and obtaining the movement angle based on the coordinate value of the target pixel point.

Further, obtaining the target pixel points in the moving track that meet the preset conditions includes: obtaining the time when each pixel point in the moving track is detected; based on the time of each pixel point, obtaining two pixel points corresponding to the latest time, Get the target pixel.

Further, obtaining the movement angle based on the coordinate values of the target pixel points includes: determining a straight line based on the coordinate values of the two pixel points; obtaining the slope of the straight line to obtain the movement angle.

Further, before displaying the bitmap of the erase control at the second position based on the offset angle, the method further includes: comparing the offset angle with a preset threshold; when the offset angle is less than or equal to the preset threshold Below, based on the offset angle, displays a bitmap of the wipe control in the second position.

Further, based on the offset angle, displaying the bitmap of the erasing control at the second position, comprising: controlling the rotation of the erasing control based on the offset angle of the erasing control; displaying the rotated bitmap of the erasing control at the second position picture.

According to another aspect of the embodiments of the present invention, a method for processing an erasing control is also provided, including: displaying a bitmap of the erasing control at a first position; The offset angle of the control, the bitmap of the eraser control is displayed in the second position, where the movement track moves from the first position to the second position, the offset angle is obtained based on the movement track, and the offset angle is the difference between the eraser control and the second position. angle in 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 detection module for detecting a movement trajectory of the erasing control from a first position to a second position; a processing module for using Based on the movement track, the offset angle of the erasing control is obtained, wherein the offset angle is the angle between the erasing control and the vertical direction; the display module is used to display the position of the erasing control at the second position based on the offset angle. picture.

According to another aspect of the embodiments of the present invention, there is also provided a processing device for erasing a control, including: a first display module for displaying a bitmap of the erasing control at a first position; a second display module for After detecting the movement track of the eraser control, a bitmap of the eraser control is displayed at the second position based on the offset angle of the eraser control, wherein the movement track moves from the first position to the second position, and the offset angle is Based on the movement track, the offset angle is the angle between the erase 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 detection device for detecting a movement trajectory of the erasing control from a first position to a second position; a processor, with The detection device is connected to obtain the offset angle of the erasing control based on the movement track, and based on the offset angle, the bitmap for controlling the erasing control is displayed in the second position, wherein the offset angle is the erasing control and the vertical direction angle.

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 the erasing control at a first position; a detection device for detecting the a movement track, wherein the movement track moves from the first position to the second position; the processor, connected with the detection device and the display, is used for, after detecting the movement track of the erasing control, based on the offset angle of the erasing control, control The display displays the bitmap of the erasing control at the second position, wherein the offset angle is obtained based on the movement track, and the offset angle is the 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 also provided, the storage medium includes a stored program, wherein when the program is run, the device where the storage medium is located is controlled to execute the above-mentioned processing method of the erasing control.

According to another aspect of the embodiments of the present invention, a processor is also provided, and the processor is used for running a program, wherein the above-mentioned processing method for erasing a control is executed when the program is running.

In this embodiment of the present invention, after detecting the movement track of the eraser control moving from the first position to the second position, the offset angle of the eraser control can be obtained based on the movement track, and further displayed at the second position based on the offset angle The bitmap of the eraser control, so that the direction of the eraser control can be controlled according to the movement track of the eraser control. Compared with the prior art, the direction of the erasing control is no longer a fixed direction, and dynamic calculations are performed at the same time as different touches, so that the direction of the erasing control is always perpendicular to the movement direction of the moving track, achieving a more realistic physical effect. , the user experience is improved, and the technical effect of software interestingness is increased, thereby solving the technical problem that the bitmap display direction of the erasing control in the prior art is fixed and the erasing effect is poor.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a flowchart of a method for processing an erase control according to an embodiment of the present invention;

2 is a schematic diagram of an optional determination of a movement angle and an offset angle according to a target pixel point according to an embodiment of the present invention;

3 is a flowchart of an optional processing method for erasing a control according to an embodiment of the present invention;

4 is a flowchart of another method for processing an erase control according to an embodiment of the present invention;

5 is a schematic structural diagram of a processing device for erasing a control according to an embodiment of the present invention;

6 is a schematic structural diagram of another processing apparatus for erasing a control 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 ways

In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts 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 the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Example 1

According to an embodiment of the present invention, an embodiment of a processing method for erasing a control is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions, Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

The processing method for the book erasing control provided in this embodiment may be executed by a processing device for erasing the control, and the processing device for erasing the control may be implemented by software and/or hardware, and the processing device for the erasing control may be two It is composed of one or more physical entities, or it can be composed of one physical entity. The processing device for the erasing control may be a computer, a mobile phone, a tablet, a projector or an intelligent interactive tablet. In the embodiment, the description is given by taking an intelligent interactive tablet as an example of a processing device for erasing controls, wherein the intelligent interactive tablet may be a combination of manipulating the content displayed on the display tablet and realizing human-computer interaction through touch technology. It integrates one or more functions such as projector, electronic whiteboard, curtain, audio, TV and video conference terminal.

In an embodiment, the smart interactive tablet establishes a data connection with at least one external device. The external devices include, but are not limited to, mobile phones, notebook computers, USB flash drives, tablet computers, and desktop computers. The communication mode of the data connection between the external device and the intelligent interactive tablet is not limited in the embodiment, and may be a communication mode such as a USB connection, the Internet, a local area network, Bluetooth, Wi-Fi, or ZigBee.

Further, when the smart interactive tablet interacts with at least one external device, the external device that sends screen projection data to the smart interactive tablet so that the smart interactive tablet can display the projection content of the screen projection data is used as a screen projection client. In other words, there may be one or more screen projection clients, which are set according to specific application scenarios, and the embodiment is not limited.

Optionally, the screen-casting client and/or the smart interactive tablet are installed with screen-casting application software, and the screen-casting application software can be pre-installed in the above-mentioned screen-casting client and/or the smart interactive tablet, or it can be used for screencasting. When the client and/or smart interactive tablet start the screen-casting application, download and install it from a third-party device or server. The third-party device is not limited in the embodiment. Specifically, the screen-casting application software is used to acquire the content displayed by the screen-casting client, use it as screen-casting data, and instruct the intelligent interactive tablet to display the content. In the embodiment, the screen-casting client and the intelligent interactive tablet are simultaneously installed with screen-casting application software as an example for description. Among them, the screen-casting application software of the screen-casting client is used to obtain the screen-casting data, and send the screen-casting data directly or indirectly to the intelligent interactive tablet. If it is sent indirectly, the screencasting client can send it to the smart interactive tablet through a transfer device, which can be a wireless screen sharing device or other devices with data transfer/processing functions. The screen projection application software of the intelligent interactive tablet is used to receive the projection data, and convert the projection data into corresponding content, which is convenient for the intelligent interactive tablet to display. It should be noted that the resolution of the display screen of the screencasting client is different from that of the smart interactive tablet, and the screencasting data is obtained based on the resolution of the screencasting client. Therefore, in order to display on the display of the smart interactive tablet For screen projection data, the projection application software needs to determine the screen mapping relationship according to the resolution of the display screen of the projection client and the display screen of the smart interactive tablet, and then convert the projection data according to the screen mapping relationship to obtain the projection content. It should be noted that, in the embodiment, the screen projection content and the display content of the screen projection data are substantially the same, but the resolutions are different.

Further, the screen projection data is in a picture format, which may be screenshot data obtained by taking a screenshot of the display content of the screen projection client, or a presentation (Microsoft Office PowerPoint, PPT).

In the embodiment, the present invention is exemplarily described by taking the screen projection client as a notebook computer, the screen projection data as a PPT in a projection state, and the interaction between the notebook computer and the intelligent interactive tablet as an example.

Fig. 1 is a flow chart 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 the movement track of the erase control moving from the first position to the second position.

Specifically, the above-mentioned erasing control may be a control for erasing the handwriting displayed on the touch screen. For example, in this embodiment, the above-mentioned erasing control may be an eraser control.

In an optional solution, when the user needs to erase the handwriting displayed on the touch screen, the user's palm can move on the touch screen to generate corresponding touch data, and the palm moves from one position to another. Then the eraser will also move from one position (ie the above-mentioned first position) to another position (ie the above-mentioned second position), where the position can be the coordinate point where the palm generates touch data, which can be used as the center of the eraser Therefore, the movement trajectory of the user's palm, that is, the movement trajectory of the eraser can be determined. During the movement of the palm, the movement trajectory of the eraser can be detected by detecting the touch data generated by the palm.

Step S104, based on the movement track, obtain the offset angle of the erasing control, 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 the angle between the vertical normal of the eraser and the vertical direction, and the angle between the vertical normal of the eraser and the vertical direction is 0°, then it can be determined that the direction of the eraser is perpendicular to the horizontal direction; the angle between the vertical normal of the eraser and the vertical direction is 90°, so it can be determined that the direction of the eraser is the horizontal direction.

In an optional solution, in order to obtain a more realistic physical effect, during the movement of the palm, the direction of the eraser can be adjusted in real time according to the movement trajectory of the user's palm, so that the direction of the eraser is perpendicular to the movement of the eraser trajectory.

Optionally, the offset angle of the eraser can be determined according to the movement direction of the movement trajectory generated during the movement of the user's palm, thereby determining the direction of the eraser, which specifically includes steps S1042 to S1044:

Step S1042, based on the movement track, obtain the movement angle of the movement track, wherein the movement angle is the angle between the movement track and the horizontal direction.

In an optional solution, during the movement of the user's palm, multiple touch data will be generated, and by performing statistical processing on the multiple touch data, the movement angle of the movement track can be determined, thereby determining the movement direction of the movement track. Specifically, it can be implemented through the following steps S110 to S112:

Step S110 , acquiring target pixels in the movement track that satisfy a preset condition.

Optionally, in the process of touch erasing on the intelligent interactive tablet, the whiteboard software system will periodically return the touch event Event to the application. In order to accurately determine the movement direction of the movement track, the following steps S1102 to S1104 can be used. , get the target pixel:

Step S1102, acquiring the time when each pixel in the movement track is detected.

Step S1104, based on the time of each pixel point, acquire two pixel points corresponding to the latest time to obtain the target pixel point.

In an optional solution, after obtaining a series of Events, the last two touch points E1 and E2 can be selected as the target pixel points, and an X and Y coordinate system can be established, wherein the Y-axis coordinate is downward, such as As shown in FIG. 2 , the coordinate value of E1 is (X1, Y1), and the coordinate value of E2 is (X2, Y2).

In step S112, the movement angle is obtained based on the coordinate value of the target pixel point.

Optionally, the movement angle of the movement trajectory of the user's palm 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 solution, as shown in FIG. 2 , after obtaining the coordinate value of E1 (X1, Y1) and the coordinate value of E2 (X2, Y2), the line segment E1E2 can be determined based on the two coordinate values , that is, determine the straight line where the two pixel points E1 and E2 are located, and further calculate the slope of the straight line to obtain the angle ∠A between the line segment E1E2 and the X-axis, that is, the above-mentioned movement angle.

Step S1044, based on the motion angle, obtain the offset angle.

In an optional solution, as shown in Figure 2, the direction of the eraser should be perpendicular to the line segment E1E2. Using the principle of calculation, it can be determined that the offset angle of the eraser ∠B (the angle between the dotted lines in Figure 2) should be equal to ∠ A.

Step S106, compare the offset angle with a preset threshold.

Specifically, the above-mentioned preset threshold may be a predefined threshold K, so as to prevent the eraser from shaking due to irregularities and large fluctuations in the touch data.

Step S108 , in the case that the offset angle is less than or equal to the preset threshold, based on the offset angle, display the bitmap of the erase control at the second position.

In an optional solution, after calculating the offset angle ∠B of the eraser, it can be determined whether the offset angle needs to be filtered through a predefined threshold K. If the offset angle deviation is large, it can be determined that the offset angle needs to be filtered. The offset angle is filtered, without changing the direction of the eraser, continue to detect the movement trajectory.

Optionally, the drawing process of the eraser specifically includes steps S1082 to S1084:

Step S1082, controlling the rotation of the erasing control based on the offset angle of the erasing control.

Step S1084, displaying the rotated bitmap of the eraser control at the second position.

In an optional solution, after the offset angle ∠B of the eraser is calculated, the offset angle can be appropriately filtered through a predefined threshold K to reduce the jitter of the eraser. The filtered offset angle can be applied directly to the eraser display. Through the system's Canvas drawing API (Application Programming Interface, Application Programming Interface), the eraser can be rotated by an angle ∠B before drawing, so that the final effect of the eraser can be drawn.

In the above-mentioned embodiment of the present invention, after detecting the movement trajectory of the erasing control from the first position to the second position, the offset angle of the erasing control can be obtained based on the movement trajectory, and further based on the offset angle at the second position Display the bitmap of the eraser control, so that the direction of the eraser control can be controlled according to the movement track of the eraser control. Compared with the prior art, the direction of the erasing control is no longer a fixed direction, and dynamic calculations are performed at the same time as different touches, so that the direction of the erasing control is always perpendicular to the movement direction of the moving track, achieving a more realistic physical effect. , the user experience is improved, and the technical effect of software interestingness is increased, thereby solving the technical problem that the bitmap display direction of the erasing control in the prior art is fixed and the erasing effect is poor.

For example, taking an eraser as an example to describe a preferred embodiment of the present invention, FIG. 3 is a flowchart of an optional processing method for erasing a control according to an embodiment of the present invention, as shown in FIG. 3 :

Step S31, acquiring touch point data.

Optionally, call up the eraser function in the whiteboard software of the smart interactive tablet, and perform touch erasing, at this time, the system will periodically return the touch event Event to the application.

Step S32, calculating the movement angle according to the touch point data.

Optionally, in the acquired series of Events, the last two touch points E1 and E2 may be taken out, and an X, Y coordinate system (Y-axis coordinate downward) may be established. Through E1(X1,Y1), E2(X2,Y2), the angle ∠A between the line segment E1E2 and the X axis can be calculated.

Step S33, calculating the offset angle of the eraser.

Optionally, the direction of the eraser should be perpendicular to the line segment E1E2. According to geometry, it can be converted that the offset angle ∠B of the eraser should be equal to ∠A.

Step S34, it is judged whether to filter the angle data.

Optionally, after calculating the offset angle ∠B of the eraser, a series of eraser offset angles can be obtained by repeating the above steps. In order to prevent the eraser jitter caused by the irregularity and large fluctuation of the touch data, the angle data can be properly filtered to reduce the eraser jitter. If it is determined that the angle data needs to be filtered, go to step S36; if it is determined that the angle data does not need to be filtered, go to step S35.

Step S35, drawing an eraser according to the offset angle.

Optionally, through the Canvas drawing API of the system, we rotate the eraser by an angle ∠B before drawing, and then we can get the final effect of the eraser.

In step S36, it is determined whether the touch ends.

Optionally, if it is determined that the touch has not ended, return to step S31, and perform dynamic calculation while continuously touching, so that the final eraser direction is always perpendicular to the handwriting movement direction to achieve realistic physical effects. If it is determined that the touch has ended, the processing flow ends.

With the solution provided by the above embodiments of the present invention, the user's touch trajectory data can be collected, the real movement direction of the current trajectory can be calculated according to the latest point data, and the eraser direction can be calculated and displayed according to the movement direction. Through this solution, the eraser can obtain a more realistic physical effect, improve the user experience, and increase the fun.

Example 2

According to an embodiment of the present invention, an embodiment of a processing method for erasing a control is also provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

The processing method for the book erasing control provided in this embodiment may be executed by a processing device for erasing the control, and the processing device for erasing the control may be implemented by software and/or hardware, and the processing device for the erasing control may be two It is composed of one or more physical entities, or it can be composed of one physical entity. The processing device for the erasing control may be a computer, a mobile phone, a tablet, a projector or an intelligent interactive tablet. In the embodiment, the description is given by taking the intelligent interactive tablet as an example of a processing device for erasing controls. In the embodiment, the present invention is exemplarily described by taking the screen projection client as a notebook computer, the screen projection data as a PPT in a projection state, and the interaction between the notebook computer and the intelligent interactive tablet as an example.

FIG. 4 is a flow chart of another processing method for erasing a control 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 erase control at the first position.

Specifically, the above-mentioned erasing control may be a control for erasing the handwriting displayed on the touch screen. For example, in this embodiment, the above-mentioned erasing control may be an eraser control.

In an optional solution, when the user needs to erase the handwriting displayed on the touch screen, the user's palm can move on the touch screen to generate corresponding touch data, and the palm moves from one position to another. Then the eraser will also move from one position (ie the above-mentioned first position) to another position (ie the above-mentioned second position), where the position can be the coordinate point where the palm generates touch data, which can be used as the center of the eraser Therefore, the movement trajectory of the user's palm, that is, the movement trajectory of the eraser can be determined. During the movement of the palm, the movement trajectory of the eraser can be detected by detecting the touch data generated by the palm.

Step S404, after detecting the movement track of the eraser control, based on the offset angle of the eraser control, display the bitmap of the eraser control at the second position, wherein the movement track moves from the first position to the second position, and the offset The shift angle is obtained based on the movement track, and the offset angle is the angle between the erase control and the vertical direction.

Specifically, the direction of the eraser can be determined by the angle between the vertical normal of the eraser and the vertical direction, and the angle between the vertical normal of the eraser and the vertical direction is 0°, then it can be determined that the direction of the eraser is perpendicular to the horizontal direction; the angle between the vertical normal of the eraser and the vertical direction is 90°, so it can be determined that the direction of the eraser is the horizontal direction.

In an optional solution, in order to obtain a more realistic physical effect, during the movement of the palm, the direction of the eraser can be adjusted in real time according to the movement trajectory of the user's palm, so that the direction of the eraser is perpendicular to the movement of the eraser trajectory.

In the above-mentioned embodiment of the present invention, the bitmap of the erasing control is displayed at the first position, and after detecting the movement track of the erasing control moving from the first position to the second position, the offset of the erasing control can be obtained based on the movement track. and further display the bitmap of the eraser control at the second position based on the offset angle, so that the direction of the eraser control can be controlled according to the movement track of the eraser control. Compared with the prior art, the direction of the erasing control is no longer a fixed direction, and dynamic calculations are performed at the same time as different touches, so that the direction of the erasing control is always perpendicular to the movement direction of the moving track, achieving a more realistic physical effect. , the user experience is improved, and the technical effect of software interestingness is increased, thereby solving the technical problem that the bitmap display direction of the erasing control in the prior art is fixed and the erasing effect is poor.

Example 3

According to an embodiment of the present invention, an embodiment of a processing apparatus for erasing a control is also provided. The processing device for erasing a control provided in this embodiment may be integrated in a processing device for erasing a control. The processing device for erasing a control may be composed of two or more physical entities, or may be composed of one physical entity. The processing device except the control can be a computer, a mobile phone, a tablet, a projector or an intelligent interactive tablet. In the embodiment, the description is given by taking the intelligent interactive tablet as an example of a processing device for erasing controls.

FIG. 5 is a schematic structural diagram of a processing apparatus for erasing controls according to an embodiment of the present invention. As shown in FIG. 5 , the apparatus includes a detection module 52 , a processing module 54 and a display module 56 .

Wherein, the detection module 54 is used to detect the movement trajectory of the eraser control from the first position to the second position; the processing module 54 is used to obtain the offset angle of the eraser control based on the movement trajectory, wherein the offset angle is the erasure angle The included angle between the control and the vertical direction; the display module 56 is used to obtain the movement angle of the movement track based on the movement track, wherein the movement angle is the included angle between the movement track and the horizontal direction.

In the above-mentioned embodiment of the present invention, after detecting the movement trajectory of the erasing control from the first position to the second position, the offset angle of the erasing control can be obtained based on the movement trajectory, and further based on the offset angle at the second position Display the bitmap of the eraser control, so that the direction of the eraser control can be controlled according to the movement track of the eraser control. Compared with the prior art, the direction of the erasing control is no longer a fixed direction, and dynamic calculations are performed at the same time as different touches, so that the direction of the erasing control is always perpendicular to the movement direction of the moving track, achieving a more realistic physical effect. , the user experience is improved, and the technical effect of software interestingness is increased, thereby solving the technical problem that the bitmap display direction of the erasing control in the prior art is fixed and the erasing effect is poor.

On the basis of the above embodiment, the processing module includes: a first processing sub-module for obtaining the movement angle of the movement trajectory based on the movement trajectory, wherein the movement angle is the angle between the movement trajectory and the horizontal direction; the second processing sub-module , which is used to obtain the offset angle based on the motion angle.

On the basis of the above embodiment, the first processing sub-module includes: an acquisition unit for acquiring target pixels in the movement track that meet preset conditions; and a processing unit for obtaining the motion angle based on the coordinate values of the target pixels.

On the basis of the above embodiment, the acquisition unit includes: a first acquisition subunit, used to acquire the time when each pixel point in the movement track is detected; and a second acquisition subunit, used to acquire the time based on each pixel point The two pixels corresponding to the latest time get the target pixel.

On the basis of the above embodiment, the processing unit includes: a determination subunit for determining a straight line based on the coordinate values of two pixel points; and a processing subunit for acquiring the slope of the straight line to obtain the motion angle.

On the basis of the above embodiment, the device further includes: a comparison module for comparing the offset angle with a preset threshold value; the display module is further configured to compare the offset angle with a preset threshold value when the offset angle is less than or equal to the preset threshold value, based on the offset angle Move the angle to display the bitmap of the eraser control in the second position.

On the basis of the above embodiment, the display module includes: a control sub-module for controlling the rotation of the erasing control based on the offset angle of the erasing control; and a display sub-module for displaying the rotated erasing control at the second position bitmap.

The processing device for erasing a control provided above can be used to execute the processing method for erasing a control provided in the above-mentioned Embodiment 1, and has corresponding functions and beneficial effects.

Example 4

According to an embodiment of the present invention, an embodiment of a processing apparatus for erasing a control is also provided. The processing device for erasing a control provided in this embodiment may be integrated in a processing device for erasing a control. The processing device for erasing a control may be composed of two or more physical entities, or may be composed of one physical entity. The processing device except the control can be a computer, a mobile phone, a tablet, a projector or an intelligent interactive tablet. In the embodiment, the description is given by taking the intelligent interactive tablet as an example of a processing device for erasing controls.

FIG. 6 is a schematic structural diagram of another processing apparatus for erasing controls according to an embodiment of the present invention. As shown in FIG. 6 , the apparatus includes: a first display module 62 and a second display module 64 .

Wherein, the first display module 62 is used for displaying the bitmap of the erasing control at the first position; the second display module 64 is used for, after detecting the movement track of the erasing control, based on the offset angle of the erasing control, in the first The bitmap of the eraser control is displayed in two positions, wherein the movement track moves from the first position to the second position, the offset angle is obtained based on the movement track, and the offset angle is the angle between the eraser control and the vertical direction.

In the above-mentioned embodiment of the present invention, the bitmap of the erasing control is displayed at the first position, and after detecting the movement track of the erasing control moving from the first position to the second position, the offset of the erasing control can be obtained based on the movement track. and further display the bitmap of the eraser control at the second position based on the offset angle, so that the direction of the eraser control can be controlled according to the movement track of the eraser control. Compared with the prior art, the direction of the erasing control is no longer a fixed direction, and dynamic calculations are performed at the same time as different touches, so that the direction of the erasing control is always perpendicular to the movement direction of the moving track, achieving a more realistic physical effect. , the user experience is improved, and the technical effect of software interestingness is increased, thereby solving the technical problem that the bitmap display direction of the erasing control in the prior art is fixed and the erasing effect is poor.

The processing device for erasing a control provided above can be used to execute the processing method for erasing a control provided in the second embodiment, 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 controls according to an embodiment of the present invention. 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 for erasing controls may 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 for erasing the control may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 7 . In the 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, the description is given by taking an example that the processing device for erasing the control is an intelligent interactive tablet.

The detection device 10 may be a detection device 10 that implements a touch function in an intelligent interactive tablet, which may be a capacitive sensor, an electromagnetic sensor, or an infrared touch frame. The detection device 10 is used to detect a touch operation on the display screen of the intelligent interactive tablet, and responds signal to the processor 20 or other device. Optionally, when the detection device 10 is an infrared touch frame, the infrared touch frame is arranged around the display screen of the intelligent interactive tablet, which can also be used to receive infrared signals and send the infrared signals to the processor 20 or other devices. equipment.

The processor 20 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory, that is, to implement the above-mentioned processing method for erasing controls. There may be one or more memories in the processing device for erasing controls. As a computer-readable storage medium, the memories can be used to store software programs, computer-executable programs, and modules. Program instructions/modules corresponding to the processing method for erasing the control (for example, the detection module 52, the processing module 54 and the display module 56 in the processing apparatus for erasing the control). The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the device, and the like. Additionally, the memory may include high speed random access memory, and may also include nonvolatile memory, such as at least one magnetic disk storage device, flash memory device, or other nonvolatile 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 through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

Specifically, in the embodiment, the detection device 10 is used to detect the movement trajectory of the erase 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 specifically implemented: based on Move the track to get the offset angle of the erase control, where the offset angle is the angle between the erase control and the vertical direction; based on the movement track, get the movement angle of the movement track, where the movement angle is the difference between the movement track and the horizontal direction angle.

On the basis of the above embodiment, in order to obtain the offset angle of the erasing control, one or more processors 20 specifically implement the following operations: based on the movement track, obtain the movement angle of the movement track, wherein the movement angle is the movement track and the movement track. The included angle in the horizontal direction; based on the motion angle, the offset angle is obtained.

On the basis of the above embodiment, in order to obtain the motion angle of the moving track, one or more processors 20 specifically implement the following operations: obtaining a target pixel point in the moving track that satisfies a preset condition; based on the coordinate value of the target pixel point, Get the angle of motion.

On the basis of the above embodiment, in order to obtain the target pixel point, one or more processors 20 specifically implement the following operations: obtain the time when each pixel point in the movement track is detected; based on the time of each pixel point, obtain The two pixels corresponding to the latest time get the target pixel.

On the basis of the above embodiment, in order to obtain the movement angle, one or more processors 20 specifically implement the following operations: determine a straight line based on the coordinate values of two pixel points; obtain the slope of the straight line to obtain the movement angle.

On the basis of the above embodiment, in order to display the bitmap of the erase control at the second position, one or more processors 20 specifically implement the following operations: compare the offset angle with a preset threshold; when the offset angle is less than If equal to or equal to the preset threshold, based on the offset angle, display the bitmap of the erase control at the second position.

On the basis of the above embodiment, in order to display the bitmap of the erasing control at the second position, one or more processors 20 specifically implement the following operations: control the rotation of the erasing control based on the offset angle of the erasing control; The second position shows the rotated bitmap of the wiper control.

The processing device for erasing a control provided above can be used to execute the processing method for erasing a control provided in Embodiment 1 above, and has corresponding functions and beneficial effects.

Example 6

According to an embodiment of the present invention, an embodiment of a processing device for erasing a control is also provided.

FIG. 8 is a schematic structural diagram of another processing device for erasing controls according to an embodiment of the present invention. 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 for erasing controls may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 8 .

The display 30 is a display 30 with a touch function, which may be a capacitive screen, an electromagnetic screen or an infrared screen. Generally speaking, the display 30 is used for displaying data according to the instruction of the processor 20, and is also used for receiving touch operations acting on the display 30, and sending corresponding signals to the processor 20 or other devices. Optionally, when the display 30 is an infrared screen, it further includes an infrared touch frame, and the infrared touch frame is arranged around the display 30, which can also be used to receive infrared signals, and send the infrared signals to the processor 20 or other devices.

Specifically, in the embodiment, the display 30 is used to display the bitmap of the erasing control at the first position; the measuring device 10 is used to detect the movement trajectory of the erasing control from the first position to the second position; the processor 20 executes the memory When one or more programs are stored in the device, the following operations are specifically implemented: after detecting the movement track of the erasing control, based on the offset angle of the erasing control, the display is controlled to display the bitmap of the erasing control in the second position, wherein , the offset angle is obtained based on the movement track, and the offset angle is the angle between the erase control and the vertical direction.

The processing device for erasing a control provided above can be used to execute the processing method for erasing a control provided in Embodiment 2 above, and has corresponding functions and beneficial effects.

Example 7

According to an embodiment of the present invention, there is also provided an embodiment of a storage medium, the storage medium includes a stored program, wherein when the program runs, the device where the storage medium is located is controlled to execute the processing method of the erasing control provided in any of the foregoing embodiments.

Example 8

According to an embodiment of the present invention, an embodiment of a processor is also provided, where the processor is used to run a program, wherein when the program runs, the processing method for erasing a control provided in any of the foregoing embodiments is executed.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

In the above-mentioned embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content may be implemented in other ways. The device embodiments described above are only illustrative, for example, the division of the units may be a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of units or modules, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes .

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (14)

1. a kind of processing method for wiping control characterized by comprising

Detection erasing control is moved to the motion track of the second position from first position；

Based on the motion track, the deviation angle of the erasing control is obtained, wherein the deviation angle is erasing control The angle of part and vertical direction；

Based on the deviation angle, the bitmap of the erasing control is shown in the second position.

2. obtaining the erasing control the method according to claim 1, wherein being based on the motion track Deviation angle, comprising:

Based on the motion track, the movement angle of the motion track is obtained, wherein the movement angle is the moving rail The angle of mark and horizontal direction；

Based on the movement angle, the deviation angle is obtained.

3. according to the method described in claim 2, it is characterized in that, obtaining the motion track based on the motion track Movement angle, comprising:

Obtain the target pixel points for meeting preset condition in the motion track；

Based on the coordinate value of the target pixel points, the movement angle is obtained.

4. according to the method described in claim 3, it is characterized in that, obtaining the target for meeting preset condition in the motion track Pixel, comprising:

Obtain the time for detecting each pixel in the motion track；

Based on the time of each pixel, corresponding two pixels of latest time are obtained, the target pixel points are obtained.

5. according to the method described in claim 4, it is characterized in that, the coordinate value based on the target pixel points, obtains described Movement angle, comprising:

Based on the coordinate value of described two pixels, straight line is determined；

The slope for obtaining the straight line obtains the movement angle.

6. the method according to claim 1, wherein being shown being based on the deviation angle in the second position Before the bitmap for showing the erasing control, the method also includes:

The deviation angle is compared with preset threshold；

In the case where the deviation angle is less than or equal to the preset threshold, it is based on the deviation angle, described second Position shows the bitmap of the erasing control.

7. being shown the method according to claim 1, wherein being based on the deviation angle in the second position The bitmap of the erasing control, comprising:

Based on the deviation angle of the erasing control, the erasing control rotation is controlled；

The bitmap of postrotational erasing control is shown in the second position.

8. a kind of processing method for wiping control characterized by comprising

The bitmap of erasing control is shown in first position；

After the motion track for detecting the erasing control, based on the deviation angle of the erasing control, in the second position Show the bitmap of the erasing control, wherein the motion track is moved to the second position from the first position, described Deviation angle is obtained based on the motion track, and the deviation angle is the angle of the erasing control and vertical direction.

9. a kind of processing unit for wiping control characterized by comprising

Detection module, the motion track for being moved to from first position the second position for detecting erasing control；

Processing module obtains the deviation angle of the erasing control, wherein the deviation angle for being based on the motion track Degree is the angle of the erasing control and vertical direction；

Display module shows the bitmap of the erasing control in the second position for being based on the deviation angle.

10. a kind of processing unit for wiping control characterized by comprising

First display module, for showing the bitmap of erasing control in first position；

Second display module, for wiping the inclined of control based on described after the motion track for detecting the erasing control Angle is moved, shows the bitmap of the erasing control in the second position, wherein the motion track is moved to from the first position The second position, the deviation angle are obtained based on the motion track, and the deviation angle is the erasing control With the angle of vertical direction.

11. a kind of processing equipment for wiping control characterized by comprising

Detection device, the motion track for being moved to from first position the second position for detecting erasing control；

Processor is connect with detection device, for obtaining the deviation angle of the erasing control based on the motion track, and Based on the deviation angle, the bitmap for controlling the erasing control is shown in the second position, wherein the deviation angle is The angle of the erasing control and vertical direction.

12. a kind of processing equipment for wiping control characterized by comprising

Display, for showing the bitmap of erasing control in first position；

Detection device, for detecting the motion track of the erasing control, wherein the motion track is moved from the first position It moves to the second position；

Processor is connect with the detection device and the display, in the motion track for detecting the erasing control Later, the deviation angle based on the erasing control controls the display in the second position and shows the position of the erasing control Figure, wherein the deviation angle is obtained based on the motion track, the deviation angle be the erasing control with it is vertical The angle in direction.

13. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program When control the storage medium where equipment perform claim require any one of 1 to 8 described in erasing control processing method.

14. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run Benefit require any one of 1 to 8 described in wipe control processing method.