CN106569692B - Gesture erasing method and device - Google Patents
Gesture erasing method and device Download PDFInfo
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- CN106569692B CN106569692B CN201610945724.2A CN201610945724A CN106569692B CN 106569692 B CN106569692 B CN 106569692B CN 201610945724 A CN201610945724 A CN 201610945724A CN 106569692 B CN106569692 B CN 106569692B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
Abstract
The embodiment of the invention relates to the technical field of touch control, in particular to a gesture erasing method and device. The gesture erasing method comprises the following steps: judging whether the touch action received by the electronic whiteboard working area is a first touch action; if the touch control action received by the electronic whiteboard working area is a first touch control action, acquiring feature information of the first touch control action within a preset time of the first touch control action from the receiving of the first touch control action; judging whether the first touch action is a trigger action for triggering gesture erasure or not according to the characteristic information of the first touch action; and if the first touch action is a trigger action for triggering gesture erasing, generating an erasing graph according to the characteristic information. The gesture erasing method and the gesture erasing device provided by the embodiment of the invention can simplify the switching process of writing and erasing working modes of the electronic whiteboard.
Description
Technical Field
The embodiment of the invention relates to the technical field of touch control, in particular to a gesture erasing method and device.
Background
With the development of touch technology, touch display screens are widely applied to various terminal devices. In order to facilitate a user to intuitively input contents such as characters and graphics through the touch display screen, part of terminal equipment using the touch display screen is integrated with an electronic whiteboard function. For example, various electronic whiteboard software installed in the terminal device, and for example, a dedicated electronic whiteboard device mainly used in a classroom or a lecture site.
Fig. 1 is a schematic view of a terminal device in an electronic whiteboard operating mode. As shown in fig. 1, in the electronic whiteboard operating mode of the terminal device 100, the terminal device 100 displays a whiteboard operating interface, which includes a toolbar 101 and a whiteboard operating area 102, wherein various tool modules, such as a display paste tool, a drawing tool, an erasing tool, and the like, are displayed on the toolbar 101; when a user touches and clicks the writing and drawing tool through a finger or a touch pen, the electronic whiteboard enters a writing and drawing working mode, when the user needs to delete the writing and drawing contents, the user clicks the erasing tool, the electronic whiteboard switches to the erasing working mode, and the user continues to operate the erasing tool to erase the writing and drawing contents.
In the prior art, the switching of writing and drawing and erasing working modes of the electronic template is realized based on the switching between different tool modules on the electronic whiteboard, and the switching process of writing and drawing and erasing working modes of the electronic whiteboard is relatively complex.
Disclosure of Invention
The embodiment of the invention provides a gesture erasing method and device, which are used for simplifying the switching process of writing and erasing working modes of an electronic whiteboard.
In a first aspect, an embodiment of the present invention provides a gesture erasing method, including:
judging whether the touch action received by the electronic whiteboard working area is a first touch action;
if the touch control action received by the electronic whiteboard working area is a first touch control action, acquiring feature information of the first touch control action within a preset time of the first touch control action from the receiving of the first touch control action;
judging whether the first touch action is a trigger action for triggering gesture erasure or not according to the characteristic information of the first touch action;
and if the first touch action is a trigger action for triggering gesture erasing, generating an erasing graph according to the characteristic information.
In a second aspect, an embodiment of the present invention provides a gesture erasing apparatus, including: the system comprises a processor, a memory and a communication interface, wherein the processor, the memory and the communication interface are connected through a communication bus;
the communication interface is used for receiving touch control actions in the working area of the electronic whiteboard;
the memory for storing program code;
the processor is used for reading the program codes stored in the memory and executing the gesture erasing method.
In a third aspect, an embodiment of the present invention provides a terminal device, including: the gesture erasing device is connected with the display screen and used for controlling the display screen to work in an electronic whiteboard mode and executing the gesture erasing method.
According to the gesture erasing method and device provided by the embodiment of the invention, the terminal equipment provided with the touch display screen determines whether the working area of the electronic whiteboard receives the first touch action or not in the working mode of the electronic whiteboard, if the working area of the electronic whiteboard receives the first touch action, the terminal equipment directly controls the electronic whiteboard to enter the erasing working mode, namely, an erasing figure is generated, and a user does not need to click a specially-arranged erasing tool to enter the erasing working mode, so that the switching flow of the writing and erasing working states of the electronic whiteboard is simplified.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic view of a terminal device in an electronic whiteboard operating mode;
fig. 2 is a schematic view of a scenario of a terminal device in an electronic whiteboard operating mode according to the present invention;
fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a possible processing apparatus according to an embodiment of the present invention;
FIG. 5 is a flowchart of a gesture erasing method according to an embodiment of the present invention;
FIG. 6 is a flowchart of a method for a gesture erase in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of an effect of an erase pattern being the shape of an eraser;
FIG. 8 is a schematic diagram of another effect of an erase pattern being an eraser shape;
FIG. 9 is a schematic diagram of an effect of an erase pattern determined by a touch trajectory;
FIG. 10 is a schematic diagram of another effect of the erase pattern determined by the touch trajectory.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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.
Fig. 2 is a schematic view of a scenario of a terminal device in an electronic whiteboard operating mode according to the present invention. As shown in fig. 2, when the terminal device 100 is in the electronic whiteboard operating mode, the terminal device 100 displays a whiteboard operating interface, the display of a toolbar on the whiteboard operating interface may be cancelled, and a function to be implemented by a tool module that cancels the display on the whiteboard operating interface may be implemented by triggering the electronic whiteboard operating area 102 by a user, for example, by triggering a gesture of the user, switching of writing/erasing operating states of the electronic whiteboard is implemented.
Fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 3, the terminal device includes a touch display screen 110 and a processing device 120, where the processing device 120 is connected to the touch display screen 110 and is configured to control the touch display screen 110 to operate in an electronic whiteboard operating mode. Under the working mode of the electronic whiteboard, a user can directly control the electronic whiteboard to switch between a writing and drawing working mode and an erasing working mode through touch control action without switching through an erasing tool on a working interface of the whiteboard, so that the switching flow of the writing and drawing working mode and the erasing working mode of the electronic whiteboard is simplified.
Fig. 4 is a schematic diagram of a possible processing device according to an embodiment of the present invention, which can be used as the processing device in fig. 3. As shown in fig. 4, the processing device 120 may include: at least one processor (processor)201, memory 202, peripheral interface 203, input/output subsystem (I/Osubsystem)204, power lines 205 and communication lines 206.
In fig. 4, arrows indicate that communication and data transfer between components of the computer system can be performed, and the communication and data transfer can be implemented using a high-speed serial bus (high-speed serial bus), a parallel bus (parallel bus), a Storage Area Network (SAN), and/or other appropriate communication technology.
The memory 202 may include an operating system 212 and a gesture erase control routine 222. For example, the memory 202 may include a high-speed random access memory (high-speed random access memory), a magnetic disk, a static random access memory (SPAM), a Dynamic Random Access Memory (DRAM), a Read Only Memory (ROM), a flash memory, or a non-volatile memory. The memory 202 may store program code for the operating system 212 and the gesture erasure control routine 222, which may include software modules, instruction set architectures, or a variety of data other than those required for the operation of the processing device 120. In this case, the access between the processor 201 and other controllers such as the peripheral interface 206 and the memory 202 may be controlled by the processor 201.
The peripherals interface 203 may combine input and/or output peripherals of the processing device 120 with the processor 201 and the memory 202. Also, the input/output subsystem 204 may combine a variety of input/output peripherals with the peripheral interface 206. For example, the input/output subsystem 204 may include a display screen, keyboard, mouse, printer, or controller for integrating peripheral devices such as cameras, various sensors, etc., with the peripheral interface 203 as desired. Specifically, a controller for integrating a touch screen display with the peripheral device interface 203 is included in the input/output subsystem 204. According to another aspect, the input/output peripheral may be coupled to the peripheral interface 203 without passing through the input/output subsystem 204, i.e., the touch screen may be coupled to the peripheral interface 203 without passing through the input/output subsystem 204.
The power line 205 may supply power to all or part of the circuit elements of the terminal device. For example, the power line 205 may include, for example, a power management system, a battery or an Alternating Current (AC) power source for more than one cycle, a charging system, a power failure detection circuit (power failure detection circuit), a power converter or inverter, a power status flag, or any other circuit element for power generation, management, distribution.
The communication line 206 may utilize at least one periodic interface to communicate with other computer systems, such as with a host control system.
The processor 201 may perform various functions of the processing device 120 and process data by executing software modules or instruction set architectures stored in the memory 202. That is, the processor 201 can be configured to process commands of a computer program by performing basic arithmetic, logic, and input/output operations of a computer system.
The embodiment of fig. 4 is only one example of the processing means 120 in the terminal device, and the processing means 120 may have the following structure or configuration: some of the circuit elements shown in fig. 4 are omitted, or additional circuit elements not shown in fig. 4 are further provided. When the processing apparatus shown in fig. 4 is applied to the terminal device in fig. 3, the gesture erasing method according to the embodiment of the present invention may be executed.
FIG. 5 is a flowchart of a gesture erasing method according to an embodiment of the present invention. As shown in fig. 5, the method includes:
step S301: when the terminal equipment is in an electronic whiteboard working mode, a processor in the terminal equipment receives a touch action input by a user in an electronic whiteboard working area through a touch display screen, and the processor judges whether the touch action received from the electronic whiteboard working area is a first touch action, wherein the first touch action is used for triggering the electronic whiteboard to switch between a writing and drawing working mode and an erasing working mode.
Step S302: if the touch action received by the processor from the electronic whiteboard working area is a first touch action, the processor acquires feature information of the first touch action within a preset time of the first touch action lasting from the receiving of the first touch action.
In the scheme of the embodiment of the invention, if a user needs to enter a writing and drawing working mode or an erasing working mode through a first touch control action, the first touch control action needs to last for a long time at a position of a touch control display screen corresponding to a whiteboard working area, and if the duration of the first touch control action at the position of the touch control display screen corresponding to the whiteboard working area is less than the preset time, a processor judges that the writing and drawing/erasing operation on the electronic whiteboard is cancelled; if the duration of the first touch operation is greater than or equal to the preset time, the processor obtains feature information of the first touch action within the preset time that the first touch action lasts since the first touch action is received, for example, may obtain graphic feature information of a track formed by the first touch action within the preset time.
Step S303: the processor judges whether the first touch action is a trigger action for triggering gesture erasing according to the characteristic information of the first touch action.
Step S304: and if the first touch action is a trigger action for triggering gesture erasing, the processor controls the electronic whiteboard to enter an erasing working mode, namely, an erasing graph is generated according to the characteristic information of the first touch action.
Step S305: and if the first touch control action is not the trigger action for triggering the gesture to erase, the processor controls the electronic whiteboard to enter a writing and drawing working mode.
In the embodiment of the invention, when the terminal display device is in the electronic whiteboard working mode, the processor in the terminal device receives the touch action input by the user in the electronic whiteboard working area through the touch display screen. The processor receives a touch action of the electronic whiteboard working area, judges whether the received touch action is a first touch action, if the touch action received by the electronic whiteboard working area is the first touch action, the processor further obtains characteristic information of the first touch action, judges whether the first touch action is a trigger action for triggering gesture erasing according to the characteristic information of the first touch action, if the first touch action is the trigger action for triggering gesture erasing, the processor controls the electronic whiteboard to enter a gesture erasing mode, namely, generates a corresponding erasing graph, and if the first touch action is not the trigger action for triggering gesture erasing, the processor controls the terminal equipment to enter a writing and drawing working mode. Therefore, in the embodiment of the invention, the terminal device judges whether the user needs to enter the writing and drawing working mode or the erasing working mode according to the touch action characteristic information of the user, and the user does not need to click the related erasing tool or writing and drawing tool on the display interface of the electronic whiteboard, so that the flow of switching the writing and drawing working mode and the erasing working mode of the electronic whiteboard is simplified.
FIG. 6 is a flowchart of a method for a gesture erase in accordance with an embodiment of the present invention. As shown in fig. 6, the processing steps of the method include:
step S401: when the terminal equipment is in an electronic whiteboard working mode, a processor in the terminal equipment receives a touch action input by a user in an electronic whiteboard working area through a touch display screen, and the processor judges whether the touch action received from the electronic whiteboard working area is a first touch action, wherein the first touch action is used for triggering the electronic whiteboard to switch between a writing and drawing working mode and an erasing working mode. For example, the first Touch action is a press Down (Touch Down) action and/or a sliding action
Step S402: if the touch work received by the processor from the electronic whiteboard working area is a first touch action, the processor determines a touch track corresponding to the first touch action according to a coordinate point set of the first touch action on the electronic whiteboard within preset time. The preset time refers to a preset time from the processor receiving the first touch action.
Step S403, the processor obtains the graphic feature information corresponding to the first touch action according to the touch track corresponding to the first touch action.
The graphic feature information corresponding to the first touch control action comprises at least one of the following: height of the touch trajectory, width of the touch trajectory, and area of the touch trajectory.
Step S404: the processor judges whether the first touch action is a trigger action for triggering the gesture erasure according to the graphic characteristic information of the first touch action.
The method for judging whether the first touch action is the trigger action for triggering the gesture erasure by the processor according to the graphic feature information of the first touch action comprises the following steps: the processor judges whether the graphic characteristic information corresponding to the first trigger action meets at least one of the following conditions:
the height of a touch track formed by the first touch action within the preset time is greater than a first preset value;
the width of a touch track formed by the first touch action in the preset time is larger than a second preset value;
the area of a touch track formed by the first touch action in the preset time is larger than a third preset value.
If the graphic characteristic information of the first touch action meets any one of the conditions, the processor determines that the first touch action is a trigger action for triggering gesture erasure.
In the embodiment of the present invention, the height and the width of the touch trajectory are preset by the processor, for example, the touch display screen of the terminal device is rectangular, the direction parallel to the length direction of the touch display screen and the touch trajectory formed by the first touch action in the electronic whiteboard working area is the width direction of the touch trajectory, and the direction parallel to the width direction of the touch display screen and the trajectory formed by the first touch action in the electronic whiteboard working area is the height direction of the touch trajectory. For another example, the side of the touch trajectory formed by the first touch action in the electronic whiteboard working area, which has the longest length, is determined as the height direction, and the direction perpendicular to the height direction is determined as the width direction, wherein the manner of setting the height and width directions of the touch trajectory can be set according to actual needs, and is not listed here.
In the embodiment of the present invention, the first preset value, the second preset value, and the third preset value are set according to an actual application scenario.
In an alternative embodiment, the first preset value, the second preset value and the third preset value are preset by the system or by a manufacturer providing the electronic whiteboard software.
In an optional implementation scheme, the terminal device is in a scene of an electronic whiteboard working mode, the terminal device provides a setting interface of a first preset value, a second preset value and a third preset value, when the processor receives a touch action of a user for calling the setting interface, the terminal device displays the setting interface for setting the first preset value, the second preset value and the third preset value to the user, and when the user sets corresponding parameters on the setting interface and triggers and stores a function key, the processor stores the first preset value, the second preset value and the third preset value set by the user.
Step S405: and if the first touch action is a trigger action for triggering gesture erasing, the processor generates an erasing graph corresponding to the shape and/or size of the touch track according to the graph characteristic information of the touch track formed by the first touch action in the preset time.
Step S406: and if the first touch control action is not the trigger action for triggering the gesture to erase, the processor controls the electronic whiteboard to enter a writing and drawing working state.
In the embodiment of the invention, the processor determines whether to enter the erasing working state or the writing and drawing working state according to the graphic characteristic information of the touch track formed by the first touch control action within the preset time from the receiving of the first touch control action, so that the switching flow between the writing and drawing working state and the erasing working state is simplified, and the operation requirement of a user is judged according to the graphic characteristic information of the touch control action, so that the operation of the user is more convenient, and the operation requirement of the user is more met.
In the embodiment of the present invention, there are various ways for the processor to generate the erase pattern corresponding to the shape and/or size of the touch trajectory according to the pattern feature information of the touch trajectory formed by the first touch control action within the preset time.
In one possible implementation, the shape of the erase pattern generated by the processor is fixed, and may be referred to herein as a preset shape, and the processor determines the size of the erase pattern of the preset shape to be displayed based on the height/width/area of the touch trajectory. For example, the processor is used for adjusting the size of the erasing graph according to the zooming relation and the graph characteristic information of the touch track according to the zooming relation, wherein the height and the width of the touch track respectively correspond to the length and the width of the erasing graph in the preset shape. Specifically, the scaling principle of the erase pattern and the touch trajectory is as follows: the height/width/area of the touch track formed by the first touch action is increased, and the parameters of the erasing graph corresponding to the height/width/area of the touch track are increased.
FIG. 7 is a schematic diagram of an effect of an erase pattern being the shape of an eraser; FIG. 8 is a schematic diagram of another effect of the erase pattern being the shape of the eraser.
As shown in fig. 7 and 8, the shape of the erasing figure is set to be an eraser shape, wherein the long side of the erasing figure corresponds to the height of the touch track formed by the first touch action and has a first scaling relationship; as shown in fig. 7, when the height and/or width of the touch track formed by the first touch action is larger, the height and/or width of the formed erase pattern is also larger according to the scaling relationship; as shown in fig. 8, when the height and/or width of the touch trajectory formed by the first touch is smaller, the height and/or width of the formed erase pattern is smaller according to the scaling relationship.
In another possible implementation, the shape and size of the erasure pattern generated by the processor is determined according to the shape and size of the touch trajectory formed by the first touch action. In the implementation scheme, the processor acquires a touch track formed by the first touch action within a preset time, and when the touch track formed by the first touch action within the preset time is determined to be a trigger action for triggering erasing, the processor generates an erasing graph matched with the shape and size of the touch track according to the first touch action.
FIG. 9 is a schematic diagram of an effect of an erase pattern determined by a touch trajectory. As shown in fig. 9, when the user uses the palm gesture to send out the first touch control action in the work area of the electronic whiteboard, the processor generates an erasing graph in a rectangular shape according to a touch track formed by the palm gesture, wherein a long side of the rectangular shape corresponds to a long side of the palm gesture of the user, and a short side of the rectangular shape corresponds to a short side of the palm gesture of the user.
FIG. 10 is a schematic diagram of another effect of the erase pattern determined by the touch trajectory. As shown in fig. 10, when the user uses the entire palm surface to send out the first touch control action in the working area of the electronic whiteboard, the processor generates an erasing pattern matching with the shape of the palm surface of the user according to the first touch control action sent out by the palm surface in the working area of the electronic whiteboard.
In the embodiment of the invention, after the processor generates the erasing graph according to the characteristic information of the first touch Dong minority sent by the user, the processor further determines the touch track formed by the first touch action within the duration time after the preset time; and the processor adjusts the shape and/or size of the erasing graph according to the touch track formed by the first touch action within the duration time after the preset time, in particular according to the graph characteristic information of the touch track formed after the preset time.
In the prior art, when the whiteboard worker is in the erasing operation mode, the size and shape of the erasing pattern provided by the processor to the user are set, for example, the erasing pattern is in the shape of an eraser, the processor provides several scales of the eraser, and the erasing effect of the user when the user erases the erasing pattern by using the eraser with fixed shape and size is not good, for example, a useful pattern can be erased.
In order to achieve a better erasing effect, in the scheme of the embodiment of the invention, the size and the shape of the erasing graph are adaptively adjusted according to the gesture (corresponding to the touch track formed by the first touch action) of the user, the size of the erasing graph does not need to be zoomed by the user through a specific zooming tool in the erasing process, the erasing process is simplified, the size and the shape of the erasing graph are adaptively adjusted according to the gesture of the user, the fine erasing of the graph and the character is facilitated, and the better erasing effect can be achieved.
Further, the processor also judges whether the first touch action is changed into a second touch action within the time after the preset time, such as a lifting action, if the first touch action is changed into the second touch action, the processor controls the electronic whiteboard to push out the gesture erasing work mode.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functions of the units may be implemented in the same cycle or in multiple cycles of software and/or hardware in practicing the invention.
The cycle embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the cycle embodiments are referred to each other, and each cycle embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one period, or may be distributed on a plurality of period network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The foregoing is merely a detailed description of the invention, and it should be noted that modifications and adaptations by those skilled in the art may be made without departing from the principles of the invention, and should be considered as within the scope of the invention.
Claims (9)
1. A gesture erasing method, comprising:
judging whether a touch action received by an electronic whiteboard working area is a first touch action, wherein the first touch action is used for triggering the electronic whiteboard to switch between a writing and drawing working mode and an erasing working mode;
if the touch control action received by the electronic whiteboard working area is a first touch control action, acquiring feature information of the first touch control action within a preset time of the first touch control action from the receiving of the first touch control action;
judging whether the first touch action is a trigger action for triggering gesture erasure or not according to the characteristic information of the first touch action;
if the first touch control action is a trigger action for triggering gesture erasing, generating an erasing graph according to the characteristic information;
after generating an erasure pattern according to the feature information, the method further includes:
judging whether the first touch action is changed into a second touch action within the time after the preset time;
if so, the gesture erasing working mode is exited.
2. The method according to claim 1, wherein the characteristic information of the first touch is graphical characteristic information of a touch trajectory formed by the first touch;
the graphic feature information includes at least one of: height of the touch trajectory, width of the touch trajectory, and area of the touch trajectory.
3. The method of claim 2, wherein determining the graphical characteristic information of the touch trajectory resulting from the first touch comprises:
determining a touch track corresponding to the first touch action according to the coordinate point set of the first touch action on the electronic whiteboard within the preset time;
and obtaining the graphic characteristic information according to the touch track.
4. The method according to claim 2 or 3, wherein determining that the first touch action is a trigger action for triggering a gesture erase comprises:
judging whether the graphic feature information meets at least one of the following conditions:
the height of the touch track is greater than a first preset value;
the width of the touch track is larger than a second preset value;
the area of the touch track is larger than a third preset value;
and if the graphic feature information meets at least one condition, determining that the first touch action is a trigger action for triggering gesture erasing.
5. The method of claim 2, wherein generating an erasure pattern based on the feature information comprises:
and generating an erasing graph corresponding to the shape and/or size of the touch track according to the graph characteristic information of the touch track.
6. The method of claim 1, wherein after generating an erasure pattern based on the feature information, the method further comprises:
determining a touch track formed by the first touch action within a duration time after the preset time;
and adjusting the shape/size of the erasing graph according to a touch track formed by the first touch action within the duration time after the preset time.
7. The method of claim 1, further comprising:
and if the first touch control action is not the trigger action for triggering the gesture erasing, entering a writing and drawing working mode.
8. A gesture scrubbing apparatus, comprising: the system comprises a processor, a memory and a communication interface, wherein the processor, the memory and the communication interface are connected through a communication bus;
the communication interface is used for receiving touch control actions in the working area of the electronic whiteboard;
the memory for storing program code;
the processor is used for reading the program codes stored in the memory and executing the gesture erasing method according to any one of claims 1 to 7.
9. A terminal device, comprising: the gesture erasing device is connected with the display screen and used for controlling the display screen to work in an electronic whiteboard mode and executing the gesture erasing method of any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945724.2A CN106569692B (en) | 2016-10-26 | 2016-10-26 | Gesture erasing method and device |
| CN202010995180.7A CN112363657A (en) | 2016-10-26 | 2016-10-26 | Gesture erasing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945724.2A CN106569692B (en) | 2016-10-26 | 2016-10-26 | Gesture erasing method and device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995180.7A Division CN112363657A (en) | 2016-10-26 | 2016-10-26 | Gesture erasing method and device |
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| CN106569692A CN106569692A (en) | 2017-04-19 |
| CN106569692B true CN106569692B (en) | 2020-10-13 |
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| CN107390988B (en) * | 2017-07-12 | 2021-03-09 | 广州视源电子科技股份有限公司 | Erasing method and device for electronic whiteboard |
| CN107807781A (en) * | 2017-09-28 | 2018-03-16 | 广州视源电子科技股份有限公司 | Gesture erasing recognition methods, device and electronic equipment |
| CN109885217B (en) * | 2017-12-06 | 2021-12-03 | 珠海金山办公软件有限公司 | Entity identification indication method and device based on playing view |
| CN108509237A (en) * | 2018-01-19 | 2018-09-07 | 广州视源电子科技股份有限公司 | Operating method, device and the intelligent interaction tablet of intelligent interaction tablet |
| CN108491102A (en) * | 2018-02-07 | 2018-09-04 | 广州视源电子科技股份有限公司 | A kind of method for deleting and device of electronic drawing board |
| CN108733293B (en) * | 2018-06-11 | 2021-09-07 | 广州视源电子科技股份有限公司 | Writing track processing method and device |
| CN109189259B (en) * | 2018-07-24 | 2021-08-06 | 深圳市创易联合科技有限公司 | Touch erase anti-interference method and device and terminal equipment |
| CN109343767A (en) * | 2018-08-31 | 2019-02-15 | 湖南新云网科技有限公司 | A kind of method for deleting of electronic whiteboard |
| CN111158569A (en) * | 2018-11-08 | 2020-05-15 | 鸿合科技股份有限公司 | Erasing operation method and device and electronic equipment |
| CN110007838B (en) * | 2019-04-02 | 2020-12-11 | 广州视源电子科技股份有限公司 | Processing method, device and equipment for erasing control |
| CN110007800B (en) | 2019-04-10 | 2020-11-10 | 广州视源电子科技股份有限公司 | Control method, device and equipment of touch operation mode and storage medium |
| DE102019007300A1 (en) * | 2019-10-21 | 2021-04-22 | Daimler Ag | Method and device for activating a cleaning mode of a touch-operated button |
| CN113676709B (en) * | 2020-05-14 | 2023-10-27 | 聚好看科技股份有限公司 | Intelligent projection equipment and multi-screen display method |
| CN112698773B (en) * | 2020-12-29 | 2022-05-06 | 深圳市康冠商用科技有限公司 | Track generation method based on display screen and related components thereof |
| WO2023245411A1 (en) * | 2022-06-21 | 2023-12-28 | 广州视源电子科技股份有限公司 | Touch control response method and apparatus, and interactive flat-panel display and storage medium |
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| US8139039B2 (en) * | 2007-07-31 | 2012-03-20 | Kent Displays, Incorporated | Selectively erasable electronic writing tablet |
| CN101178632A (en) * | 2007-11-27 | 2008-05-14 | 北京中星微电子有限公司 | Method and device of touch screen input and erase and special input unit |
| CN103064613A (en) * | 2012-12-13 | 2013-04-24 | 鸿富锦精密工业（深圳）有限公司 | Method and device for erasing contents of touch screen |
| US9251592B2 (en) * | 2012-12-22 | 2016-02-02 | Friedemann WACHSMUTH | Pixel object detection in digital images method and system |
| CN103077025B (en) * | 2012-12-28 | 2015-11-18 | 锐达互动科技股份有限公司 | A kind of closed geometry figure is wiped trajectory and is generated the method for new trajectory |
| CN103106029B (en) * | 2013-01-18 | 2015-12-02 | 程抒一 | Touch-screen erasing gesture recognition system |
| CN103353828B (en) * | 2013-06-24 | 2016-08-24 | 深圳市创凯智能股份有限公司 | The method and device of function is write and is wiped in a kind of switching on the touchscreen |
| CN103677637B (en) * | 2013-12-06 | 2018-10-12 | 上海斐讯数据通信技术有限公司 | Delete the method and electronic equipment of the word of display on the touchscreen |
| CN104484121A (en) * | 2014-12-29 | 2015-04-01 | 广州视睿电子科技有限公司 | Method and device for erasing contents on touch screen |
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