CN106201314A - A kind of display packing realizing handwriting input on touch screen and display device - Google Patents
A kind of display packing realizing handwriting input on touch screen and display device Download PDFInfo
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- CN106201314A CN106201314A CN201610522043.5A CN201610522043A CN106201314A CN 106201314 A CN106201314 A CN 106201314A CN 201610522043 A CN201610522043 A CN 201610522043A CN 106201314 A CN106201314 A CN 106201314A
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- touch coordinate
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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
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/203—Drawing of straight lines or curves
Abstract
The present invention relates to computer graphics disposal technology field, disclose a kind of display packing realizing handwriting input on touch screen and display device.The pen being set handwriting trace by the pressure sensitivity value obtained according to touch coordinate point is carried out pressure sensitivity simulation process is thick, so that the stroke writing figure of final display is more true and attractive in appearance, handwriting input is carried out even with finger, also character and graphic attractive in appearance as using brush pen can be write out, and then preferably experience can be brought to user, it is simple to actual promotion and application.
Description
Technical field
The present invention relates to computer graphics disposal technology field, in particular it relates to one realizes hand-written defeated on touch screen
The display packing entered and display device.
Background technology
Owing to touch screen can unite two into one with display screen, and replace keyboard and realize the input of information, therefore also become
One of indispensable device of electronic equipment, such as mobile phone and panel computer etc. at present.Along with popularizing of touch screen, drive hand-written defeated
The extensive application entered, former handwriting, as the important interactive session of handwriting input, is gradually favored by users.Former person's handwriting book
Writing technology the most on an electronic device, a series of coordinate datas received according to touch screen, write on paper for pen by simulation
Curvilinear path, draws out the pictorial pattern technology that user expects to see the most on a display screen.
Carrying out in graph processing technique existing for former handwriting, main emphasis is how to solve handwriting trace
The problem of curve smoothing, generally uses shellfish hereby (Bezier) curve to carry out the track that matching is write.But also do not have correlation technique
Consider how that the pen optimizing handwriting trace is thick, in order to make the stroke writing figure finally shown more true and attractive in appearance, especially
It is when using finger to carry out handwriting input, it is impossible to write out character and graphic attractive in appearance as using brush pen.
Summary of the invention
For aforementioned problem of the prior art, the invention provides a kind of display side realizing handwriting input on touch screen
Method and display device, set handwriting trace by the pressure sensitivity value obtained according to touch coordinate point is carried out pressure sensitivity simulation process
Pen thick so that the stroke writing figure of final display is more true and attractive in appearance, carry out hand-written even with finger
Input, also can write out character and graphic attractive in appearance as using brush pen, and then can bring preferably experience to user, it is simple to be real
Border promotion and application.
The technical solution used in the present invention, on the one hand provides a kind of display side realizing handwriting input on touch screen
Method, comprises the steps: that S101. obtains the pixel size value S of display screenpSlightly it is worth with target pen；S102. gather when unit
Between endogenous cause of ill is hand-written and the touch coordinate point that is touched, and obtain touch coordinate dot information, described touch coordinate dot information includes touching
Touch the coordinate figure of coordinate points size value and each touch coordinate point；S103. all touching is calculated according to described touch coordinate dot information
Touch total distance length L of coordinate pointsTD, and pressure sensitivity value P of current one time is calculated according to equation belowt:
In formula, N is the touch coordinate point sum collected in the current one time；S104. for touch coordinate point each described,
According to the distance of the initial touch coordinate points in corresponding touch coordinate point to current one time, interpolation obtains corresponding touch point
Single-point pressure sensitivity value, in Interpolation Process, with pressure sensitivity value P of previous unit interval0For initial pressure sensitivity value, with the current one time
Pressure sensitivity value PtFor terminating pressure sensitivity value；S105. for touch coordinate point each described, by corresponding described single-point pressure sensitivity value and institute
Stating target pen to be slightly worth and be multiplied, the display pen obtaining corresponding touch coordinate point is slightly worth, and then set obtains by all touch coordinate points
The line segment figure constituted；S106. by described line segment images outputting to display screen, it is achieved instant playback.
Optimizing, in described step S102, the length of described unit interval is not more than 40ms.
Optimize, also comprised the steps: to use Douglas-Pu Ke evacuating algorithm to institute before described step S103
State touch coordinate point to be diluted processing, simplify described touch coordinate dot information.Optimize further, draw in described employing Doug
Described touch coordinate point is diluted in the step processed by Si-Pu Ke evacuating algorithm, sets dilution threshold value as M times of described picture number
Spot size value Sp, wherein, M is the natural number between 1～3.
Optimize, before described step S106, also comprise the steps: that described line segment figure is carried out secondary shellfish the most bent
The round and smooth process of line, makes the threshold value of described line segment figure less than or equal to K times of described picture number spot size value Sp, wherein, K is between 1
～the natural number between 3.
The technical solution used in the present invention, on the other hand provides a kind of display dress realizing handwriting input on touch screen
Put, it is characterised in that include the acquiring unit being sequentially connected with, collecting unit, computing unit, interpolating unit, aggregation units and show
Show unit；Described acquiring unit, for obtaining the pixel size value S of display screenpSlightly it is worth with target pen；Described collecting unit,
For gathering touch coordinate point that is hand-written in unit interval endogenous cause of ill and that be touched, and obtain touch coordinate dot information, described touch
Coordinate points information includes the coordinate figure of touch coordinate spot size value and each touch coordinate point；Described computing unit, for basis
Described touch coordinate dot information calculates total distance length L of all touch coordinate pointsTD, and calculate current one according to equation below
Pressure sensitivity value P of timet:
In formula, N is the touch coordinate point sum collected in the current one time；Described interpolating unit, for for each institute
Stating touch coordinate point, according to the distance of the initial touch coordinate points in corresponding touch coordinate point to current one time, interpolation obtains
To the single-point pressure sensitivity value of corresponding touch point, in Interpolation Process, with pressure sensitivity value P of previous unit interval0For initial pressure sensitivity value,
Pressure sensitivity value P with the current one timetFor terminating pressure sensitivity value；Described aggregation units, is used for for touch coordinate point each described,
Corresponding described single-point pressure sensitivity value being slightly worth with described target pen and be multiplied, the display pen obtaining corresponding touch coordinate point is slightly worth, so
Rear set obtains the line segment figure being made up of all touch coordinate points；Described display unit, for line chart described in instant playback
Shape.
Optimize, also include the dilution unit being connected between described collecting unit and described computing unit；Described dilution
Unit, is used for using Douglas-Pu Ke evacuating algorithm to be diluted described touch coordinate point processing, simplifies described touch and sit
Pointing information.
Optimize, also include the round and smooth processing unit being connected between described aggregation units and described display unit；Described
Round and smooth processing unit, for described line segment figure is carried out the round and smooth process of secondary Bezier curve, makes the threshold value of described line segment figure
Less than or equal to K times of described picture number spot size value Sp, wherein, K is the natural number between 1～3.
To sum up, a kind of display packing realizing handwriting input on touch screen provided by the present invention and display dress are used
Put, have the advantages that the pressure sensitivity value that (1) obtains by touch coordinate point is carried out pressure sensitivity simulation process sets book
The pen writing track is thick, so that the stroke writing figure of final display is more true and attractive in appearance, enters even with finger
Row handwriting input, also can write out character and graphic attractive in appearance as using brush pen；(2) consider during the thick setting of pen aobvious
The picture number size of display screen, can make the stroke writing figure finally shown have optimal resolution, increases display further
Aesthetic；(3) by touch coordinate point being diluted process, the operand of subsequent treatment can be simplified, ensureing the most aobvious
Show final line segment figure, fast response time；(4) by line segment figure being carried out the round and smooth process of secondary Bezier curve, Ke Yibao
The flatness of barrier line segment figure, further such that the stroke writing figure of final display is more true and attractive in appearance；(5) can give
User brings preferably experience, it is simple to actual promotion and application.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the display packing realizing handwriting input on touch screen that the present invention provides.
Fig. 2 is based on described display packing the final display effect schematic diagram that the present invention provides.
Fig. 3 is the structural representation of the display device realizing handwriting input on touch screen that the present invention provides.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, hand-written by way of example realizing on touch screen of describing that the present invention provides in detail
The display packing of input and display device.At this it should be noted that the explanation for these way of example is adapted to assist in reason
Solve the present invention, but be not intended that limitation of the invention.
The terms "and/or", a kind of incidence relation describing affiliated partner, can there are three kinds of passes in expression
System, such as, A and/or B, can represent: individualism A, individualism B, there is tri-kinds of situations of A and B, the terms simultaneously
"/and " it is to describe another kind of affiliated partner relation, two kinds of relations, such as, A/ and B can be there are, can represent: individually deposit in expression
In two kinds of situations of A, individualism A and B, it addition, character "/" herein, typically represent forward-backward correlation and close liking a kind of "or"
System.
Embodiment one
Fig. 1 shows the schematic flow sheet of the display packing realizing handwriting input on touch screen that the present invention provides, Fig. 2
Show based on described display packing the final display effect schematic diagram that the present invention provides.It is described tactile that the present embodiment provides
Realize the display packing of handwriting input on control screen, comprise the steps.
S101. the pixel size value S of display screen is obtainedpSlightly it is worth with target pen.
In step S101, described picture number spot size value SpFor being used for showing that final stroke writing figure is (that is follow-up
Line segment figure) display screen in the size of minimum display unit (i.e. as several points), it can be by reading the hardware of display screen
Parameter acquiring.Described target pen is slightly worth closely related with the thickness of final stroke writing figure display degree, and it can be input
Preset value may also be default value.
S102. gather touch coordinate point that is hand-written in unit interval endogenous cause of ill and that be touched, and obtain touch coordinate dot information,
Described touch coordinate dot information includes the coordinate figure of touch coordinate spot size value and each touch coordinate point.
In step s 102, by touch screen controller (touch screen includes touch detecting apparatus and touch screen controller) in the future
Be converted to touch point coordinate from the touch information of touch detecting apparatus, thus obtain and be touched because of hand-written in handwriting area
Touch coordinate point.Described hand-written mode can be, but not limited to as using felt pen handwriting input or using finger handwriting input
(now touch screen is preferably capacitance touch screen).Described touch coordinate spot size value is that in touch screen, minimum touch unit is (the most tactile
Touch a little) size, its can by read touch screen hardware parameter obtain.In addition optimize, in described step S102, institute
The length stating the unit interval is not more than 40ms.The number of times that thus can make collection per second is higher than 25 times, and then makes finally in display
The image frame per second (comprising follow-up line segment graphical content) of screen display is higher than 25 frames/second, makes the naked eyes cannot perception graphic frame
Conversion, ensures the sensory experience to display content.
S103. total distance length L of all touch coordinate points is calculated according to described touch coordinate dot informationTD, and according to such as
Lower formula calculates pressure sensitivity value P of current one timet:
In formula, N is the touch coordinate point sum collected in the current one time.
In step s 102, according to touch coordinate spot size value in described touch coordinate dot information and each touch coordinate point
Coordinate figure calculate total distance length L of all touch coordinate pointsTD, its unit is mm.Owing to collecting in the current one time
Touch coordinate point sum may be the most, processing speed can be affected, therefore optimize, also include before described step S103
Following steps: use Douglas-Pu Ke evacuating algorithm to be diluted described touch coordinate point processing, simplify described touch and sit
Pointing information.Described Douglas-Pu Ke evacuating algorithm is a kind of existing and for clicking on the graph data of bulk redundancy
Row compression is with the method extracting necessary data point, and it is as follows that this algorithm realizes taking out dilute process: the first and last point of curve is virtually connected by (1)
Straight line, ask on curve a little with the distance of straight line, and find out maximum range value dMax, use dMaxWith the most given threshold value
D compares；(2) if dMax＜ D, then all cast out the intermediate point on this curve, then using near as curve of this straightway
Seemingly, this section of curve processing is complete；(3) if dMax>=D, then retain dMaxCorresponding coordinate points, and with this point as boundary, curve is divided into
These two parts are reused the method by two parts, i.e. repeat (1) and (2) step, until meeting dMax＜ D, i.e. completes curve
Take out dilute.
Due to described Douglas-Pu Ke evacuating algorithm to take out dilute precision closely related with threshold value D, threshold value is the biggest, simplifies
Degree is the biggest, and it is the most that point reduces, otherwise, abbreviation degree is the lowest, and it is the most that point retains, and shape the most more tends to virgin curve.Therefore
Optimize further, at described employing Douglas-Pu Ke evacuating algorithm, described touch coordinate point is diluted the step processed
In Zhou, set dilution threshold value as M times of described picture number spot size value Sp, wherein, M is the natural number between 1～3.Thus lead to
Cross and be diluted touch coordinate point processing, the operand of subsequent treatment can be simplified, ensure and quickly show final line chart
Shape, fast response time.Additionally, during the calculating of dilution process and pressure sensitivity value, all consider the picture number size of display screen, can
So that the stroke writing figure of final display has optimal resolution, increase the aesthetic of display further.
S104. for touch coordinate point each described, according to initiateing in corresponding touch coordinate point to current one time
The distance of touch coordinate point, interpolation obtains the single-point pressure sensitivity value of corresponding touch point, in Interpolation Process, with the previous unit interval
Pressure sensitivity value P0For initial pressure sensitivity value, with pressure sensitivity value P of current one timetFor terminating pressure sensitivity value.
In step S104, the interpolation algorithm used can be, but not limited to as discrete smooth interpolation method (Discrete
Smooth Interpolation) or trend surface smooth interpolation method (Trend Surface), touch such that it is able to precision obtains each
Touch the corresponding single-point pressure sensitivity value of coordinate points.
S105. for touch coordinate point each described, corresponding described single-point pressure sensitivity value is slightly worth phase with described target pen
Taking advantage of, the display pen obtaining corresponding touch coordinate point is slightly worth, and then gathers the line segment figure obtaining being made up of all touch coordinate points.
S106. by described line segment images outputting to display screen, it is achieved instant playback.
In step s 106, described display screen can be, but not limited to LCDs or LED display.Optimize, in institute
Also comprise the steps: before stating step S106 described line segment figure is carried out the round and smooth process of secondary Bezier curve, make described line
The threshold value of segment figure is less than or equal to K times of described picture number spot size value Sp, wherein, K is the natural number between 1～3.Pass through
Line segment figure is carried out the round and smooth process of secondary Bezier curve, can be with the flatness of security system segment figure, can be further such that
The stroke writing figure of display is more true and attractive in appearance eventually.
By abovementioned steps S101 to S106, not only can realize the display of handwriting input on the touchscreen, it is also possible to logical
Cross pressure sensitivity value touch coordinate point being carried out pressure sensitivity simulation process and obtain thick to the pen setting handwriting trace, so that
The stroke writing figure of final display is more true and attractive in appearance, carries out handwriting input even with finger, also can write out picture
Use the character and graphic that brush pen is the most attractive in appearance, and then preferably experience can be brought to user, it is simple to actual promotion and application.
To sum up, the display packing realizing handwriting input on touch screen that the present embodiment is provided, there is following technology effect
Really: the pen that the pressure sensitivity value that (1) obtains by touch coordinate point is carried out pressure sensitivity simulation process sets handwriting trace is thick, permissible
Make the stroke writing figure finally shown more true and attractive in appearance, carry out handwriting input even with finger, also can write
Go out character and graphic attractive in appearance as using brush pen；(2) consider during the thick setting of pen display screen as number size, can
So that the stroke writing figure of final display has optimal resolution, increase the aesthetic of display further；(3) by right
Touch coordinate point is diluted processing, and can simplify the operand of subsequent treatment, ensures and quickly shows final line segment figure, rings
Answer speed fast；(4) by line segment figure being carried out the round and smooth process of secondary Bezier curve, can with the flatness of security system segment figure,
Can be further such that the stroke writing figure of final display be more true and attractive in appearance；(5) can bring preferably to user
Experience, it is simple to actual promotion and application.
Embodiment two
Fig. 3 shows the structural representation of the display device realizing handwriting input on touch screen that the present invention provides.This
Embodiment provides the display dress of a kind of display packing realizing handwriting input on touch screen realized described by embodiment one
Put, including the acquiring unit being sequentially connected with, collecting unit, computing unit, interpolating unit, aggregation units and display unit；Described
Acquiring unit, for obtaining the pixel size value S of display screenpSlightly it is worth with target pen；Described collecting unit, for gathering at list
The touch coordinate point that bit time endogenous cause of ill is hand-written and is touched, and obtain touch coordinate dot information, described touch coordinate dot information bag
Include the coordinate figure of touch coordinate spot size value and each touch coordinate point；Described computing unit, for according to described touch coordinate
Dot information calculates total distance length L of all touch coordinate pointsTD, and the pressure sensitivity value of current one time is calculated according to equation below
Pt:
In formula, N is the touch coordinate point sum collected in the current one time；Described interpolating unit, for for each institute
Stating touch coordinate point, according to the distance of the initial touch coordinate points in corresponding touch coordinate point to current one time, interpolation obtains
To the single-point pressure sensitivity value of corresponding touch point, in Interpolation Process, with pressure sensitivity value P of previous unit interval0For initial pressure sensitivity value,
Pressure sensitivity value pressure sensitivity value P with the current one timetFor terminating pressure sensitivity value；Described aggregation units, for for touch each described
Coordinate points, is slightly worth corresponding described single-point pressure sensitivity value with described target pen and is multiplied, and obtains the first reality of corresponding touch coordinate point
Border pen is slightly worth, and then set obtains the line segment figure being made up of all touch coordinate points；Described display unit, for instant playback
Described line segment figure.
Optimize, also include the dilution unit being connected between described collecting unit and described computing unit；Described dilution
Unit, is used for using Douglas-Pu Ke evacuating algorithm to be diluted described touch coordinate point processing, simplifies described touch and sit
Pointing information.
Optimize, also include the round and smooth processing unit being connected between described aggregation units and described display unit；Described
Round and smooth processing unit, for described line segment figure is carried out the round and smooth process of secondary Bezier curve, makes the threshold value of described line segment figure
Less than or equal to K times of described picture number spot size value Sp, wherein, K is the natural number between 1～3.
The technique effect of the described display device realizing handwriting input on touch screen that the present embodiment provides, can basis
The technique effect of embodiment one is known, repeats no more in this.
As it has been described above, the present invention can preferably be realized.For a person skilled in the art, according to the religion of the present invention
Leading, the display packing realizing handwriting input on touch screen and the display device of designing multi-form are not required to creativeness
Work.Without departing from the principles and spirit of the present invention these embodiments are changed, revise, replace, integrate and
Modification still falls within protection scope of the present invention.
Claims (8)
1. the display packing realizing handwriting input on touch screen, it is characterised in that comprise the steps:
S101. the pixel size value S of display screen is obtainedpSlightly it is worth with target pen；
S102. gather touch coordinate point that is hand-written in unit interval endogenous cause of ill and that be touched, and obtain touch coordinate dot information, described
Touch coordinate dot information includes the coordinate figure of touch coordinate spot size value and each touch coordinate point；
S103. total distance length L of all touch coordinate points is calculated according to described touch coordinate dot informationTD, and according to following public
Formula calculates pressure sensitivity value P of current one timet:
In formula, N is the touch coordinate point sum collected in the current one time；
S104. for touch coordinate point each described, according to the initial touch in corresponding touch coordinate point to current one time
The distance of coordinate points, interpolation obtains the single-point pressure sensitivity value of corresponding touch point, in Interpolation Process, with the pressure of previous unit interval
Inductance value P0For initial pressure sensitivity value, with pressure sensitivity value P of current one timetFor terminating pressure sensitivity value；
S105. for touch coordinate point each described, corresponding described single-point pressure sensitivity value is slightly worth with described target pen and is multiplied,
Display pen to corresponding touch coordinate point is slightly worth, and then gathers the line segment figure obtaining being made up of all touch coordinate points；
S106. by described line segment images outputting to display screen, it is achieved instant playback.
A kind of display packing realizing handwriting input on the touchscreen, it is characterised in that described
In step S102, the length of described unit interval is not more than 40ms.
A kind of display packing realizing handwriting input on touch screen, it is characterised in that described
Also comprise the steps: before step S103 to use Douglas-Pu Ke evacuating algorithm that described touch coordinate point is diluted
Process, simplify described touch coordinate dot information.
A kind of display packing realizing handwriting input on touch screen, it is characterised in that described
Use Douglas-Pu Ke evacuating algorithm described touch coordinate point to be diluted in the step processed, set dilution threshold value as M
The most described picture number spot size value Sp, wherein, M is the natural number between 1～3.
A kind of display packing realizing handwriting input on touch screen, it is characterised in that described
Also comprise the steps: before step S106 described line segment figure is carried out the round and smooth process of secondary Bezier curve, make described line segment
The threshold value of figure is less than or equal to K times of described picture number spot size value Sp, wherein, K is the natural number between 1～3.
6. the display device realizing handwriting input on touch screen, it is characterised in that the acquiring unit that includes being sequentially connected with,
Collecting unit, computing unit, interpolating unit, aggregation units and display unit；
Described acquiring unit, for obtaining the pixel size value S of display screenpSlightly it is worth with target pen；
Described collecting unit, for gathering touch coordinate point that is hand-written in unit interval endogenous cause of ill and that be touched, and obtains touch seat
Pointing information, described touch coordinate dot information includes the coordinate figure of touch coordinate spot size value and each touch coordinate point；
Described computing unit, for calculating total distance length L of all touch coordinate points according to described touch coordinate dot informationTD,
And pressure sensitivity value P of current one time is calculated according to equation belowt:
In formula, N is the touch coordinate point sum collected in the current one time；
Described interpolating unit, for for touch coordinate point each described, according to corresponding touch coordinate point to the current one time
The distance of interior initial touch coordinate points, interpolation obtains the single-point pressure sensitivity value of corresponding touch point, in Interpolation Process, with previous
Pressure sensitivity value P of unit interval0For initial pressure sensitivity value, with pressure sensitivity value P of current one timetFor terminating pressure sensitivity value；
Described aggregation units, for for touch coordinate point each described, by corresponding described single-point pressure sensitivity value and described target
The thick value of pen is multiplied, and the display pen obtaining corresponding touch coordinate point is slightly worth, and then gathers and obtains being made up of all touch coordinate points
Line segment figure；
Described display unit, for line segment figure described in instant playback.
A kind of display device realizing handwriting input on touch screen, it is characterised in that also include
It is connected to the dilution unit between described collecting unit and described computing unit；
Described dilution unit, is used for using Douglas-Pu Ke evacuating algorithm to be diluted described touch coordinate point processing, letter
Change described touch coordinate dot information.
A kind of display device realizing handwriting input on touch screen, it is characterised in that also include
The round and smooth processing unit being connected between described aggregation units and described display unit；
Described round and smooth processing unit, for described line segment figure is carried out the round and smooth process of secondary Bezier curve, makes described line chart
The threshold value of shape is less than or equal to K times of described picture number spot size value Sp, wherein, K is the natural number between 1～3.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107798717A (en) * | 2017-09-13 | 2018-03-13 | 深圳市创易联合科技有限公司 | Electronic brush writing method, device, computer equipment and storage medium |
| CN112699196A (en) * | 2020-12-30 | 2021-04-23 | 深圳赛安特技术服务有限公司 | Track generation method and device, terminal equipment and storage medium |
| CN113763492A (en) * | 2021-08-26 | 2021-12-07 | 厦门鲸至教育科技有限公司 | Method for improving smoothness of drawing board track |
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