CN113608667A - Electronic handwriting writing and erasing method, storage medium and equipment - Google Patents
Electronic handwriting writing and erasing method, storage medium and equipment Download PDFInfo
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- CN113608667A CN113608667A CN202110963690.0A CN202110963690A CN113608667A CN 113608667 A CN113608667 A CN 113608667A CN 202110963690 A CN202110963690 A CN 202110963690A CN 113608667 A CN113608667 A CN 113608667A
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- 238000004590 computer program Methods 0.000 claims description 13
- 238000012986 modification Methods 0.000 description 2
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- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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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
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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
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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Abstract
The invention discloses an electronic handwriting writing and erasing method, and belongs to the technical field of electronic handwriting processing. The method comprises the following steps: reading and storing touch information; judging whether writing or erasing is carried out according to a preset threshold value; if the current touch information is the touch information, entering erasing processing, and erasing the electronic handwriting of the electronic page according to the current touch information; and if the electronic handwriting is written, entering writing processing, and writing new electronic handwriting on the electronic page. The invention is used for synchronously improving the erasing of the electronic handwriting when the electronic whiteboard or the intelligent blackboard erases the physical handwriting, and intelligently judging whether the electronic handwriting is stored when writing or erasing, and has convenient operation for users and high efficiency.
Description
Technical Field
The invention relates to the technical field of electronic handwriting processing, in particular to an electronic handwriting writing and erasing method, a storage medium and equipment.
Background
When the electronic whiteboard or the electronic blackboard is used for writing, a handwriting window can be generated, a user can write in the handwriting window, and the handwriting window can display the written electronic handwriting. The user can erase the written electronic handwriting in the handwriting window. When the electronic handwriting is erased, an erasing image can be rendered in the handwriting window, and the electronic handwriting covered by the erasing image is re-rendered to realize the erasing function, however, the operation is complex and the efficiency is low.
Disclosure of Invention
The invention aims to provide an electronic handwriting writing and erasing method, a storage medium and equipment, which aim to solve the technical problems in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme: the method for writing and erasing the electronic handwriting comprises the following steps:
s20, reading and saving the touch information;
s25, judging whether to write or erase according to a preset threshold value; if the erase is true, the step S30 is proceeded to; if yes, the procedure goes to step S50; if none, go to step S26; the threshold value is used for judging whether writing or erasing is carried out;
s26: performing operation processing other than erasing or writing, and returning to step S20;
s30, judging whether the last touch operation of the touch information is erasing, if so, entering a step S40, otherwise, entering a step S35;
s35, saving the current electronic page, and setting the current electronic page as the ith page;
s40, erasing the electronic handwriting corresponding to the electronic page on the ith page according to the current touch information, and returning to the step S20;
s50, judging whether the last touch operation of the touch information is writing or erasing; if the erase is true, the step S60 is proceeded to; if yes, the procedure goes to step S90;
s60, judging whether all the electronic handwriting of the electronic page is erased; otherwise, entering step S70; if yes, go to step S80;
s70, judging whether the electronic page is stored as a local erased electronic page according to the preset; if yes, go to step S80; otherwise, entering step S90;
s80, judging whether the electronic handwriting exists on the electronic page which is stored in advance and is partially erased, if so, storing the electronic page which is stored in advance and is partially erased as the ith page, newly building an electronic page as the (i + 1) th page, and entering the step S90, wherein i is i + 1; if not, directly entering step S90;
and S90, writing the new electronic handwriting on the current electronic page, and returning to the step S20.
Preferably, before S20, the method further includes the steps of:
and S10, presetting the size and the shape of the intelligent blackboard eraser, the threshold value and whether to store the locally erased electronic page.
Preferably, the S40 specifically includes the following steps:
s41, reading the touch information of the intelligent eraser, and calculating the inclination angle of the intelligent eraser; the touch information comprises touch points, touch sizes, touch time and touch tracks;
s42, calculating the electronic handwriting to be erased according to the touch information and the inclination angle;
and S43, erasing the electronic handwriting.
Preferably, the shape of the intelligent blackboard eraser is round, rectangular or square.
Preferably, when the intelligent eraser is circular, the inclination angle of the intelligent eraser is 0; the S42 specifically includes the following steps:
s4201, calculating a touch central point according to the touch information;
s4202, calculating an erasing area by taking the central point as a circle center and the size of the intelligent blackboard eraser as a diameter, wherein the erasing area is a circular erasing area;
and S4203, calculating the electronic handwriting needing to be erased according to the circular erasing area.
Preferably, when the intelligent blackboard eraser is rectangular or square; the S42 specifically includes the following steps:
s4211, calculating diagonal vertex coordinates of a rectangle of the touched area according to the touch information;
s4212, calculating an inclination angle according to the vertex coordinates to further calculate an erasing area, wherein the erasing area is a rectangular erasing area or a square erasing area;
and S4213, calculating the electronic handwriting to be erased according to the rectangular erasing area or the square erasing area.
The present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed, implements the electronic-handwriting writing and erasing method described above.
The invention also provides an electronic handwriting erasing device, comprising:
one or more processors;
memory for storing one or more computer programs, one or more processors for executing the one or more computer programs stored by the memory to cause the one or more processors to
The implementation of one of the technical schemes of the invention has the following advantages or beneficial effects: the invention is used for synchronously improving the erasing of the electronic handwriting when the electronic whiteboard or the intelligent blackboard erases the physical handwriting, and intelligently judging whether the electronic handwriting is stored when writing or erasing, thereby facilitating the operation of users and having high efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a flow chart of an embodiment of the electronic handwriting writing and erasing method of the invention;
FIG. 2 is a flow chart of step S40 of the electronic handwriting writing and erasing method according to the embodiment of the invention;
FIG. 3 is a first flowchart of step S42 of the electronic handwriting erasing method according to the embodiment of the invention;
FIG. 4 is a second flowchart of step S42 of the electronic handwriting writing and erasing method according to the embodiment of the invention.
Detailed Description
In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the invention may be practiced. The same numbers in different drawings identify the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatus, etc. consistent with certain aspects of the present disclosure as detailed in the appended claims, and that other embodiments may be used or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present disclosure.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," and the like are used in the orientations and positional relationships illustrated in the accompanying drawings for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the elements so referred to must have a particular orientation, be constructed in a particular orientation, and be operated. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "coupled" and "connected" are to be construed broadly and may include, for example, fixed, removable, integral, mechanical, electrical, communicative, direct, indirect through an intermediary, communication between two elements, or an interaction between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to explain the technical solution of the present invention, the following description is made by way of specific examples, which only show the relevant portions of the embodiments of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the present invention provides an embodiment of an electronic handwriting writing and erasing method, which specifically includes the following steps:
s20, reading and saving the touch information;
s25, judging whether to write or erase according to a preset threshold value; if the erase is true, the step S30 is proceeded to; if yes, the procedure goes to step S50; if none, go to step S26; the threshold value is used for judging whether writing or erasing is carried out;
s26: performing operation processing other than erasing or writing, and returning to step S20; specifically, the operation processing may be an operation of exiting, key selection, color changing, or the like, which is not illustrated here.
S30, judging whether the last touch operation of the touch information is erasing, if so, entering a step S40, otherwise, entering a step S35;
s35, saving the current electronic page, and setting the current electronic page as the ith page;
s40, erasing the electronic handwriting corresponding to the electronic page on the ith page according to the current touch information, and returning to the step S20;
s50, judging whether the last touch operation of the touch information is writing or erasing; if the erase is true, the step S60 is proceeded to; if yes, the procedure goes to step S90;
s60, judging whether all the electronic handwriting of the electronic page is erased; otherwise, entering step S70; if yes, go to step S80;
s70, judging whether the electronic page is stored as a local erased electronic page according to the preset; if yes, go to step S80; otherwise, entering step S90;
s80, judging whether the electronic handwriting exists on the electronic page which is stored in advance and is partially erased, if so, storing the electronic page which is stored in advance and is partially erased as the ith page, newly building an electronic page as the (i + 1) th page, and entering the step S90, wherein i is i + 1; if not, directly entering step S90;
and S90, writing the new electronic handwriting on the current electronic page, and returning to the step S20.
In this embodiment, as shown in fig. 1, before the step S20, the method further includes the steps of:
and S10, presetting the size and the shape of the intelligent blackboard eraser, the threshold value and whether to store the locally erased electronic page.
In this embodiment, as shown in fig. 2, the S40 specifically includes the following steps:
s41, reading the touch information of the intelligent eraser, and calculating the inclination angle of the intelligent eraser; the touch information comprises touch points, touch sizes, touch time and touch tracks;
s42, calculating the electronic handwriting to be erased according to the touch information and the inclination angle;
and S43, erasing the electronic handwriting.
In this embodiment, the shape of the intelligent eraser can be circular, rectangular or square; of course, other shapes are possible, not just exemplified here.
As shown in fig. 3, when the intelligent eraser is circular, the inclination angle of the intelligent eraser is 0; the S42 specifically includes the following steps:
s4201, calculating a touch central point according to the touch information;
s4202, calculating an erasing area by taking the central point as a circle center and the size of the intelligent blackboard eraser as a diameter, wherein the erasing area is a circular erasing area;
and S4203, calculating the electronic handwriting needing to be erased according to the circular erasing area.
As shown in fig. 4, when the intelligent blackboard eraser is rectangular or square; the S42 specifically includes the following steps:
s4211, calculating diagonal vertex coordinates of a rectangle of the touched area according to the touch information;
s4212, calculating an inclination angle according to the vertex coordinates to further calculate an erasing area, wherein the erasing area is a rectangular erasing area or a square erasing area;
and S4213, calculating the electronic handwriting to be erased according to the rectangular erasing area or the square erasing area.
The invention is used for synchronously improving the erasing of the electronic handwriting when the electronic whiteboard or the intelligent blackboard erases the physical handwriting, and intelligently judging whether the electronic handwriting is stored when writing or erasing, thereby facilitating the operation of users and having high efficiency.
The embodiment is only a specific example and does not indicate such an implementation of the invention.
Example two:
it will be appreciated by those of ordinary skill in the art that all or part of the features/steps implementing the above-described method embodiments may be implemented by a method, a data processing system, or a computer program, and that such features may be implemented without hardware, in software or in a combination of hardware and software. The foregoing computer program may be stored in one or more computer-readable storage media having stored thereon, a computer program that, when executed (e.g., by a processor), performs steps comprising the electronic handwriting writing and erasing method embodiments described above.
Example three:
the invention also provides an embodiment of the electronic handwriting erasing device, which comprises one or more processors and a memory; wherein the memory is used for storing one or more computer programs, and the one or more processors are used for executing the one or more computer programs stored in the memory, so as to make the processors execute the characteristics/steps of the electronic handwriting writing and erasing method embodiment.
After reading the above description, it will be apparent to a person skilled in the art that various features described herein can be implemented by a method, a data processing apparatus or a computer program product. Accordingly, these features may be embodied in hardware, in software in their entirety, or in a combination of hardware and software. Furthermore, the above-described features may also be embodied in the form of a computer program product stored on one or more computer-readable storage media having computer-readable program code segments or instructions embodied in the storage medium. The readable storage medium is configured to store various types of data to support operations at the device. The readable storage medium may be implemented by any type of volatile or non-volatile storage device, or combination thereof. Such as a static hard disk, a random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), an optical storage device, a magnetic storage device, a flash memory, a magnetic or optical disk, and/or combinations thereof.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. An electronic handwriting writing and erasing method is characterized by comprising the following steps:
s20, reading and saving the touch information;
s25, judging whether to write or erase according to a preset threshold value; if the erase is true, the step S30 is proceeded to; if yes, the procedure goes to step S50; if none, go to step S26; the threshold value is used for judging whether writing or erasing is carried out;
s26: performing operation processing other than erasing or writing, and returning to step S20;
s30, judging whether the last touch operation of the touch information is erasing, if so, entering a step S40, otherwise, entering a step S35;
s35, saving the current electronic page, and setting the current electronic page as the ith page;
s40, erasing the electronic handwriting corresponding to the electronic page on the ith page according to the current touch information, and returning to the step S20;
s50, judging whether the last touch operation of the touch information is writing or erasing; if the erase is true, the step S60 is proceeded to; if yes, the procedure goes to step S90;
s60, judging whether all the electronic handwriting of the electronic page is erased; otherwise, entering step S70; if yes, go to step S80;
s70, judging whether the electronic page is stored as a local erased electronic page according to the preset; if yes, go to step S80; otherwise, entering step S90;
s80, judging whether the electronic handwriting exists on the electronic page which is stored in advance and is partially erased, if so, storing the electronic page which is stored in advance and is partially erased as the ith page, newly building an electronic page as the (i + 1) th page, and entering the step S90, wherein i is i + 1; if not, directly entering step S90;
and S90, writing the new electronic handwriting on the current electronic page, and returning to the step S20.
2. The method for writing and erasing electronic handwriting according to claim 1, further comprising, before said S20, the steps of:
and S10, presetting the size and the shape of the intelligent blackboard eraser, the threshold value and whether to store the locally erased electronic page.
3. The method for writing and erasing electronic handwriting according to claim 2, wherein said S40 comprises the following steps:
s41, reading the touch information of the intelligent eraser and calculating the inclination angle of the intelligent eraser; the touch information comprises touch points, touch sizes, touch time and touch tracks;
s42, calculating the electronic handwriting to be erased according to the touch information and the inclination angle;
and S43, erasing the electronic handwriting.
4. The method for writing and erasing electronic handwriting according to claim 3, wherein the shape of said intelligent eraser is circular, rectangular or square.
5. The method for writing and erasing electronic handwriting according to claim 4, wherein when said intelligent eraser is round, the inclination angle of said intelligent eraser is 0; the S42 specifically includes the following steps:
s4201, calculating a touch central point according to the touch information;
s4202, calculating an erasing area by taking the central point as a circle center and the size of the intelligent blackboard eraser as a diameter, wherein the erasing area is a circular erasing area;
and S4203, calculating the electronic handwriting needing to be erased according to the circular erasing area.
6. The method for writing and erasing electronic handwriting according to claim 4, wherein when said intelligent eraser is rectangular or square; the S42 specifically includes the following steps:
s4211, calculating diagonal vertex coordinates of a rectangle of the touched area according to the touch information;
s4212, calculating an inclination angle according to the vertex coordinates to further calculate an erasing area, wherein the erasing area is a rectangular erasing area or a square erasing area;
and S4213, calculating the electronic handwriting to be erased according to the rectangular erasing area or the square erasing area.
7. A computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when executed, implements the electronic handwriting writing and erasing method of any of claims 1-6.
8. An apparatus for electronic handwriting erasure, comprising:
one or more processors;
memory for storing one or more computer programs, one or more processors for executing the one or more computer programs stored by the memory to cause the one or more processors to perform the electronic writing erasing method according to any one of claims 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110963690.0A CN113608667B (en) | 2021-08-20 | Electronic handwriting writing and erasing method, storage medium and device | |
| PCT/CN2022/093047 WO2023020047A1 (en) | 2021-08-20 | 2022-05-16 | Electronic handwriting writing and erasing method, storage medium, and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110963690.0A CN113608667B (en) | 2021-08-20 | Electronic handwriting writing and erasing method, storage medium and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113608667A true CN113608667A (en) | 2021-11-05 |
| CN113608667B CN113608667B (en) | 2024-07-09 |
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| CN114546174A (en) * | 2022-02-28 | 2022-05-27 | 京东方科技集团股份有限公司 | Handwriting processing method, display device and readable storage medium |
| CN115098014A (en) * | 2021-12-29 | 2022-09-23 | 山东蓝贝思特教装集团股份有限公司 | Handwriting display method, controller and TFT liquid crystal writing device |
| WO2023020047A1 (en) * | 2021-08-20 | 2023-02-23 | 深圳市灵畅互动科技有限公司 | Electronic handwriting writing and erasing method, storage medium, and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023020047A1 (en) * | 2021-08-20 | 2023-02-23 | 深圳市灵畅互动科技有限公司 | Electronic handwriting writing and erasing method, storage medium, and device |
| CN115098014A (en) * | 2021-12-29 | 2022-09-23 | 山东蓝贝思特教装集团股份有限公司 | Handwriting display method, controller and TFT liquid crystal writing device |
| CN115098014B (en) * | 2021-12-29 | 2024-05-14 | 山东蓝贝思特教装集团股份有限公司 | Handwriting display method, controller and TFT liquid crystal writing device |
| CN114546174A (en) * | 2022-02-28 | 2022-05-27 | 京东方科技集团股份有限公司 | Handwriting processing method, display device and readable storage medium |
| CN114546174B (en) * | 2022-02-28 | 2024-03-08 | 京东方科技集团股份有限公司 | Handwriting processing method, display device and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023020047A1 (en) | 2023-02-23 |
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