CN109445887A - A kind of method for drafting for simulating writing brush style of writing - Google Patents
A kind of method for drafting for simulating writing brush style of writing Download PDFInfo
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Abstract
The invention discloses a kind of method for drafting for simulating writing brush style of writing, belong to computer graphics disposal technology field, comprising: real-time coordinate acquisition point sample, and the coordinate points sample of acquisition is stored in coordinate set according to sample time order；The distance between coordinate points sample threshold value and sampling time difference threshold value are set, to screen to the coordinate points sample in coordinate set；It is poor according to the distance between adjacent coordinates point sample value and sampling time in coordinate set, and draw mode in conjunction with Bezier and realize that the style of writing of the curve is drawn.The present invention realizes the optimization to fluency is drawn, ensure that can stablize drafting under low latency by screening to the coordinate points sample of acquisition.
Description
Technical field
The present invention relates to computer graphics disposal technology field, in particular to a kind of method for drafting for simulating writing brush style of writing.
Background technique
With the development of computer graphical, image software and hardware technology, the painting and calligraphy under area of computer aided, which are drawn, becomes research
Hot spot.Currently, commonly drawing mode includes two kinds: first is that, the included drafting interface function of exploitation language is drawn.
It has the disadvantage that drafting low efficiency, draws time long situations such as will appear delay.Included function interface is not right simultaneously
Curve is handled, and causes the sawtooth of curve, shadow problem serious, and writing brush style of writing effect is poor.Second is that being provided in conjunction with development language
Function interface drawn.It mainly utilizes C++ Bezier to realize and draws, and calculates draw needs first
Data are plotted to curve in conjunction with Bezier, then carry out subsequent modification to curve.It has problems in that: due to wanting
By a large amount of calculating and plotting, it may appear that delay and Caton phenomenon, interactive experience are poor；And corresponding technical support is also required to
The expense of payment great number is just supported.
Summary of the invention
The purpose of the present invention is to provide a kind of method for drafting for simulating writing brush style of writing, can be under low latency surely with guarantee
It is fixed to draw.
In order to achieve the above object, the present invention is using a kind of method for drafting for simulating writing brush style of writing, comprising: one, writing brush drafting
Curve beginning and end be the vigour of style in writing, midium line segment is style of writing, comprising:
Real-time coordinate acquisition point sample, and the coordinate points sample of acquisition is stored in coordinate set according to sample time order；
The distance between coordinate points sample threshold value and sampling time difference threshold value are set, to the coordinate point sample in coordinate set
This is screened；
It is poor according to the distance between adjacent coordinates point sample value and sampling time in coordinate set, and combine Bezier
Drafting mode realizes that the style of writing of the curve is drawn.
Further, further includes:
The slope between collected two coordinate points samples at first is calculated in the coordinate set, and according to slope to song
Line beginning is lengthened, and realizes that the vigour of style in writing at the curve beginning is drawn；
When the last one coordinate points sample drawing is completed in the coordinate set, according to the last one coordinate points sample
Draw brush width realizes that the vigour of style in writing at the curve ending is drawn to lengthening at curve ending.
Further, the slope between collected two coordinate points samples at first in the coordinates computed set, and press
Curve beginning is lengthened according to slope, realizes that the vigour of style in writing at the curve beginning is drawn, comprising:
Calculate in the coordinate set slope k between collected two coordinate points samples at first；
According to slope k, increase n vigour of style in writing coordinate points near first coordinate points sample, and according to the drafting style of writing
The smallest paintbrush width carries out lengthening drafting to curve beginning in the process；
Color is set to the curved portion drawn is lengthened, the color which draws curved portion collects at first than described
Two coordinate points samples between drafting it is of light color.
Further, described poor according to the distance between adjacent coordinates point sample value and sampling time in coordinate set, and
Mode, which is drawn, in conjunction with Bezier realizes that the style of writing of the curve is drawn, comprising:
It is poor according to the distance between adjacent coordinates point value and sampling time in the coordinate set, calculate the picture currently drawn
Width；
Color is distributed for the stroke width currently drawn；
Based on the paintbrush width currently drawn and color, mode is drawn to the coordinate set using Bezier
In coordinate points sample handled, realize the curve style of writing draw.
Further, described poor according to the distance between adjacent coordinates point value and sampling time in the coordinate set, meter
Calculate the paintbrush width currently drawn, comprising:
Calculate the distance between adjacent coordinates point in the coordinate set；
It is poor according to the distance between described adjacent coordinates point and sampling time, calculate the paintbrush speed currently drawn；
According to current drafting speed and the velocity standard value being previously set, the paintbrush paintbrush width currently drawn is calculated:
Wherein, currentPwidth indicates that current paintbrush width, norSpeed indicate the standard value of speed,
CurrentSpeed represents current paintbrush speed.
Further, further include using the paintbrush speed currently drawn to the velocity standard value being previously set into
Row updates, specifically:
Judge whether the paintbrush speed currently drawn is greater than the velocity standard value being previously set；
If so, the velocity standard value being previously set described in increasing；
If it is not, the velocity standard value being previously set described in then reducing.
Further, further includes:
The paintbrush width that the current paintbrush width is calculated with the last time is made the difference, the two difference is obtained；
The absolute value diffMaxWidth of the difference is compared with acceptable maximum changing value max_dif is set
Compared with；
If difference is more than acceptable changing value, then in the upper paintbrush width once calculated between current paintbrush width
(max_dif/diffMaxWidth) secondary drafting is carried out again.
It is further, poor in the distance value according in coordinate set between adjacent coordinates point sample and sampling time,
And after drawing the style of writing drafting that mode realizes the curve in conjunction with Bezier, further includes:
The curve that one, the writing brush is drawn is replicated, facsimile log is obtained；
The paintbrush width of the facsimile log is increased into m pixel, the transparency reduction of the brush color of facsimile log with
As background；
It carries out simulation writing brush again in the background and carries out Drawing of Curve.
Further, further includes:
When coordinate points sample in the coordinate set is less than four, carries out graphical pointv or draw line segment processing.
Further, when described the last one coordinate points sample drawing in coordinate set is completed, according to the last one seat
The draw brush width of punctuate sample realizes that the vigour of style in writing at the curve ending is drawn to lengthening at curve ending, comprising:
End is drawn for finger or left mouse button lifts setting mark drawFinsh；
When detecting drawFinsh mark, the paintbrush width at the end of draws set distance to curve knot again
It is lengthened at tail.
Compared with prior art, there are following technical effects by the present invention: the present invention realizes the optimization to fluency is drawn,
Can carry out stablizing drafting in the case where guaranteeing low latency, the design of low latency be based on the screening to coordinate pair, eliminate away from
From the coordinate pair of pixel and time lower than 25ms less than 3~4, reduces the calculating of redundancy, improve efficiency, reduce and prolong
Late；Delay is individually drawn based on multithreading, is not interfered with each other, be ensure that the fluency of drafting.It realizes simultaneously to style of writing
The optimization of the vigour of style in writing ensure that the effect that simulation writing brush is drawn.
Detailed description of the invention
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail:
Fig. 1 is a kind of flow diagram of method for drafting for simulating writing brush style of writing；
Fig. 2 is the result schematic diagram simulating writing brush style of writing and drawing.
Specific embodiment
In order to further explain feature of the invention, reference should be made to the following detailed description and accompanying drawings of the present invention.Institute
Attached drawing is only for reference and purposes of discussion, is not used to limit protection scope of the present invention.
As shown in Figure 1, present embodiment discloses it is a kind of simulate writing brush style of writing method for drafting, one, the writing brush drafting
Curve beginning and end is the vigour of style in writing, and midium line segment is style of writing, includes the following steps S1 to S3:
S1, real-time coordinate acquisition point sample, and the coordinate points sample of acquisition is stored in coordinate set according to sample time order
It closes；
The distance between S2, setting coordinate points sample threshold value and sampling time difference threshold value, to the coordinate in coordinate set
Point sample is screened；
S3, according in coordinate set the distance between adjacent coordinates point sample value and the sampling time it is poor, and combine Bezier
Drawing of Curve mode realizes that the style of writing of the curve is drawn.
It should be noted that it is exactly coordinate acquisition value pair that the simulation writing brush of software version, which draws the first step, coordinate value is to being bent
The basis that line is drawn, it is determined that final which type of path with one of curve is shown.In above-mentioned steps S1, to seat
The acquisition mode of punctuate sample is as follows:
(1) moving event for monitoring mouse to obtain the motion track of mouse in real time:
This mode by calling the corresponding available corresponding coordinate value pair of interface, using the track of mouse down as
The path of drafting.It is pressed in left mouse button and moves beginning until mouse-up completes primary draw.A seat is collected every time
Scale value starts to draw to i.e. deposit coordinate set merging, by the coordinate value of acquisition to being continuously added to coordinate set in drawing process,
Changing coordinates set is just emptied until user stops current primary draw.One is drawn, the track that user draws can be real
When be plotted on painting canvas, currently empty coordinate set, reduce the accumulation of data, reduce memory pressure.
(2) when accessing external equipment, such as access high speed camera takes a little, then to for the first time since detecting a little
Point (emptying set) is not detected as a complete drawing path, repeatedly drafting is then the step more than constantly repeating.
Further, the smoothness of drafting and whether Caton is codetermined by computer and external equipment (if present)
's.Therefore, in order to guarantee draw fluency need to the coordinate value acquired in real time to screening, to reduce subsequent redundancy
It calculates.The present embodiment is to be screened in a upper coordinate value to corresponding threshold value between present coordinate values pair, is arranged, threshold value
The installation warrants coordinate value pair and a upper coordinate value pair that currently acquire between acquisition time interval and coordinate value pair between
Distance.25ms is less than for sampling time interval in the present embodiment or distance is less than the coordinate value of [3,4] a pixel to sieve
Choosing is fallen, and coordinate set is not saved in.
It should be noted that in practical applications, those skilled in the art screening conditions can also be arranged more tight
Lattice adjust sampling time interval threshold value and distance threshold, few to quantity with the coordinate value for ensuring to acquire, and then reduce subsequent
Calculating and drafting.The calculating that so can avoid many redundancies cracking can also be handled even if configuring general computer, will not
Too much influence is brought to the delay and Caton in later period.
Further, when above-mentioned steps S3: being worth according to the distance between adjacent coordinates point sample in coordinate set and sampling
Between it is poor, and in conjunction with Bezier draw mode realize the curve style of writing draw.Include:
It is poor according to the distance between adjacent coordinates point value and sampling time in the coordinate set, calculate the picture currently drawn
Width；
Color is distributed for the stroke width currently drawn；
Based on the paintbrush width currently drawn and color, mode is drawn to the coordinate set using Bezier
In coordinate points sample handled, realize the curve style of writing draw.
Wherein, poor according to the distance between adjacent coordinates point value and sampling time in the coordinate set, calculating is currently drawn
The paintbrush width of system, comprising:
Using the range formula of point-to-point transmission, the distance between adjacent coordinates point in the coordinate set is calculated；
It is poor according to the distance between described adjacent coordinates point and sampling time, calculate the paintbrush speed currently drawn；
According to current drafting speed and the velocity standard value being previously set, the paintbrush paintbrush width currently drawn is calculated:
Wherein, currentPwidth indicates that current paintbrush width, norSpeed indicate the standard value of speed,
CurrentSpeed represents current paintbrush speed.
It should be noted that the design key of style of writing is exactly the width setting to current paintbrush, the present embodiment will currently be drawn
The drafting speed and drafting width of pen are arranged to a kind of non-linear relation, and the style of writing drawn out can interlock to a kind of thickness of user
Very smooth, the mellow and full feeling of variation simultaneously.
It preferably, further include using the paintbrush speed currently drawn in the present embodiment to the speed being previously set
Standard value is updated, specifically:
Judge whether the paintbrush speed currently drawn is greater than the velocity standard value being previously set；
If so, the velocity standard value being previously set described in increasing；
If it is not, the velocity standard value being previously set described in then reducing.
It should be noted that increase or reduceds amplitude is according to the performance setting of equipment, in the present embodiment, setting is every time
Increase 0.12 point, reduces by 0.08 point every time.
It should be understood that the velocity standard value that this implementation is previously set is the standard of the default artificially set
Value.Being those skilled in the art obtains one for the current drafting speed standard value that is compared by many experiments.
Corresponding relationship due to calculating current paintbrush width according to present speed cannot be linear relationship, otherwise curve
Variation would not be mellow and full smooth, so calculating picture when current drafting according to the velocity standard value after present speed and update
Width.
Preferably, in order to which the thickness of curve changes more mellow and full, the present embodiment further include:
The paintbrush width that the current paintbrush width is calculated with the last time is made the difference, the two difference is obtained；
The absolute value diffMaxWidth of the difference is compared with acceptable maximum changing value max_dif is set
Compared with；
If difference is more than acceptable changing value, then in the upper paintbrush width once calculated between current paintbrush width
(max_dif/diffMaxWidth) secondary drafting is carried out again.
It should be noted that acceptable maximum changing value max_dif is default value set in advance in the present embodiment,
It is defaulted as 0.65, if the absolute value diffMaxWidth of difference, in this variation range, the thickness variation of curve is mellow and full
Smooth.If the absolute value diffMaxWidth of difference is more than acceptable changing value, in upper primary paintbrush width to working as
(max_dif/diffMaxWidth) secondary (using being accepted or rejected into a method) drafting is carried out between preceding paintbrush width again, for change
Change obvious place and needs to take repeatedly drafting to make up not mellow and full enough the problem of drafting.
Further, in this embodiment draw mode using Bezier to the drafting of style of writing, drafting it is main
Step includes:
(1) four points are successively known as upper point A, current point B, next point C and next point D.We utilize this
Four points calculate three control point C1 (AB sections), C2 (BC sections) and C3 (CD sections), the calculating side of three control points C1, C2, C3
Formula is to ask the midpoint of line segment.
(2) after obtaining three control points C1, C2, C3, C1C2 sections of midpoint of line segment, C3C3 sections of midpoint is asked to obtain again
Two control points D1 and D2, wherein D1 is nearest apart from current point B, and D2 is nearest apart from next point C, find out control point D1 and D2 it
Between offset.
(3) control point cot1 and cot2 are found out according to the offset between control point D1 and D2 again, calculation is as follows:
Int Offset1=B-c1；
Int Offset2=C-c2；
Int cot1=B+Offset1；
Int cot2=C+Offset2；
Cot1=cot1+K* (B-cot1)；
Cot2=cot2+K* (C-cot2)；
Wherein, * indicates product, and int Offset indicates offset, and K becomes smoothing factor and value between [0,0.5],
And effect is best when taking 0.5.A smooth Bezier can be drawn using final cot1, cot2 and C in this way, so
Style of writing can be realized by combining the color of the current paintbrush width for drawing section and distribution afterwards.
Mode is drawn using Bezier it should be noted that drawing, at least reaches four points and just starts to draw,
Therefore start the individually processing of the case where not reaching at four needs.Graphical pointv draws line segment.
Preferably, the present embodiment further include:
The slope between collected two coordinate points samples at first is calculated in the coordinate set, and according to slope to song
Line beginning is lengthened, and realizes that the vigour of style in writing at the curve beginning is drawn；
When the last one coordinate points sample drawing is completed in the coordinate set, according to the last one coordinate points sample
Draw brush width realizes that the vigour of style in writing at the curve ending is drawn to lengthening at curve ending.
It should be noted that the present embodiment also draws the vigour of style in writing of the beginning and end for the curve once drawn, one
As the draw brush width that starts all very little, cannot be a rectangular section and the modification for needing color combining and shade.
The present embodiment is arranged especially by the vigour of style in writing that following steps are started:
Calculate in the coordinate set slope k between collected two coordinate points samples at first；
According to slope k, increase n vigour of style in writing coordinate points near first coordinate points sample, and according to the drafting style of writing
The smallest paintbrush width carries out lengthening drafting to curve beginning in the process, this step mainly extends drawing for user according to slope
Track processed generally takes distance to be not less than the coordinate points of 1 pixel and no more than 3 pixel, sits to the opposite direction that user draws
Punctuate quantity is generally 2 or 3；
Color is set to the curved portion drawn is lengthened, the color which draws curved portion collects at first than described
Two coordinate points samples between drafting it is of light color, can pass through adjust color clarity realize.
Further, the drafting style of writing that ending needs to combine user last, if necessary to weight pen then corresponding overstriking, otherwise
Reduce paintbrush width, while the variation of design colours.Specifically:
Realize that the vigour of style in writing at the curve ending is drawn, comprising:
End is drawn for finger or left mouse button lifts setting mark drawFinsh；
When detecting drawFinsh mark, the paintbrush width at the end of draws set distance to curve knot again
It is lengthened at tail.
It should be noted that the vigour of style in writing design at ending haves no need to change the transparency of color, unless the speed drawn is very
Fastly, user has the demand that a suffix is left at ending, then draws hatching effect.
It is set it should be noted that the present embodiment carries out vigour of style in writing optimization by the beginning and end to the curve once drawn
Meter, ensure that the painting and calligraphy effect of drafting is more nearly the effect of true painting and calligraphy pieces.
Preferably due to the style of writing for combining the color of the current paintbrush width for drawing section and distribution to realize is drawn, picture
Sawtooth sense is serious, therefore the present embodiment carries out sawtooth as follows and optimizes:
The curve that one, the writing brush is drawn is replicated, facsimile log is obtained；
The paintbrush width of the facsimile log is increased into m (can value be 4) pixels, the brush color of facsimile log
Transparency is reduced using as background；
It carries out simulation writing brush again in the background and carries out Drawing of Curve.
The present embodiment on the basis of original by, in a current curve of duplication, increasing paintbrush width, reducing paintbrush
It is used as background after former coloured transparency, draws curve mellow and full, the sawtooth sense that can reach curve smoothing again on this background
It is unobvious, while having the effect of style of writing and the vigour of style in writing.Its principle is style of writing using drawing the superimposed method of two curves, two
Main difference is that background colour and thickness are different, the graph color for being plotted in upper layer depends on user's selection, curve for curve
Thickness is from system-computed, and the color of upper layer color is reduced to 6% by the graph color for being plotted in lower layer, and curve thickness is fixed
4 pixels are added in the curve thickness of upper layer, user can be according to this fixed value of the apparatus modifications of oneself；The vigour of style in writing is then to be prolonged
Long track drafting, drawing result is as shown in Figure 2 after optimization.
It should be noted that disclosed technical solution can realize the optimization to fluency is drawn through this embodiment, ensure that
Drafting can be stablized under low latency；The optimization to the style of writing vigour of style in writing is realized, ensure that there can be the feeling for drawing writing brush；It realizes
Optimization to aesthetics such as curve sawtooth, shades, ensure that can be after drawing with a kind of smooth, smooth form exhibition
Now give user.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method for drafting for simulating writing brush style of writing, which is characterized in that the curve beginning and end of one, writing brush drafting
For the vigour of style in writing, midium line segment is style of writing, comprising:
Real-time coordinate acquisition point sample, and the coordinate points sample of acquisition is stored in coordinate set according to sample time order；
The distance between coordinate points sample threshold value and sampling time difference threshold value are set, with to the coordinate points sample in coordinate set into
Row screening；
It is poor according to the distance between adjacent coordinates point sample value and sampling time in coordinate set, and Bezier is combined to draw
Mode realizes that the style of writing of the curve is drawn.
2. the method for drafting of simulation writing brush style of writing as described in claim 1, which is characterized in that further include:
The slope between collected two coordinate points samples at first is calculated in the coordinate set, and curve is opened according to slope
Head is lengthened, and realizes that the vigour of style in writing at the curve beginning is drawn；
When the last one coordinate points sample drawing is completed in the coordinate set, according to the drafting of the last one coordinate points sample
Paintbrush width realizes that the vigour of style in writing at the curve ending is drawn to lengthening at curve ending.
3. the method for drafting of simulation writing brush style of writing as claimed in claim 2, which is characterized in that in the coordinates computed set most
The first slope between collected two coordinate points samples, and curve beginning is lengthened according to slope, realize the curve
The vigour of style in writing at beginning is drawn, comprising:
Calculate in the coordinate set slope k between collected two coordinate points samples at first；
According to slope k, increase n vigour of style in writing coordinate points near first coordinate points sample, and according to the drafting style of writing process
In the smallest paintbrush width to curve beginning carry out lengthening drafting；
Color is set to the curved portion drawn is lengthened, the color which draws curved portion is more collected at first by two than described
Drafting between a coordinate points sample is of light color.
4. the method for drafting of simulation writing brush style of writing as claimed in claim 2, which is characterized in that described according to phase in coordinate set
The distance between adjacent coordinate points sample value and sampling time are poor, and draw the pen that mode realizes the curve in conjunction with Bezier
Touching is drawn, comprising:
It is poor according to the distance between adjacent coordinates point value and sampling time in the coordinate set, it is wide to calculate the paintbrush currently drawn
Degree；
Color is distributed for the stroke width currently drawn；
Based on the paintbrush width currently drawn and color, mode is drawn in the coordinate set using Bezier
Coordinate points sample is handled, and realizes that the style of writing of the curve is drawn.
5. the method for drafting of simulation writing brush style of writing as claimed in claim 4, which is characterized in that described according to the coordinate set
The distance between middle adjacent coordinates point value and sampling time are poor, calculate the paintbrush width currently drawn, comprising:
Calculate the distance between adjacent coordinates point in the coordinate set；
It is poor according to the distance between described adjacent coordinates point and sampling time, calculate the paintbrush speed currently drawn；
According to current drafting speed and the velocity standard value being previously set, the paintbrush paintbrush width currently drawn is calculated:
Wherein, currentPwidth indicates that current paintbrush width, norSpeed indicate the standard value of speed,
CurrentSpeed represents current paintbrush speed.
6. the method for drafting of simulation writing brush style of writing as claimed in claim 5, which is characterized in that further include currently being drawn using described
The paintbrush speed of system is updated the velocity standard value being previously set, specifically:
Judge whether the paintbrush speed currently drawn is greater than the velocity standard value being previously set；
If so, the velocity standard value being previously set described in increasing；
If it is not, the velocity standard value being previously set described in then reducing.
7. the method for drafting of simulation writing brush style of writing as claimed in claim 5, which is characterized in that further include:
The paintbrush width that the current paintbrush width is calculated with the last time is made the difference, the two difference is obtained；
The absolute value diffMaxWidth of the difference is compared with acceptable maximum changing value max_dif is set；
If difference be more than acceptable changing value, then the upper paintbrush width once calculated between current paintbrush width again
Carry out (max_dif/diffMaxWidth) secondary drafting.
8. the method for drafting of simulation writing brush style of writing as claimed in claim 2, which is characterized in that described according in coordinate set
The distance between adjacent coordinates point sample value and sampling time are poor, and draw mode in conjunction with Bezier and realize the curve
After style of writing is drawn, further includes:
The curve that one, the writing brush is drawn is replicated, facsimile log is obtained；
The paintbrush width of the facsimile log is increased into m pixel, the transparency reduction of the brush color of facsimile log using as
Background；
It carries out simulation writing brush again in the background and carries out Drawing of Curve.
9. the method for drafting of simulation writing brush style of writing as claimed in claim 4, which is characterized in that further include:
When coordinate points sample in the coordinate set is less than four, carries out graphical pointv or draw line segment processing.
10. as claimed in claim 2 simulation writing brush style of writing method for drafting, which is characterized in that it is described in coordinate set most
The latter coordinate points sample drawing complete when, according to the last one coordinate points sample draw brush width at curve ending into
Row lengthens, and realizes that the vigour of style in writing at the curve ending is drawn, comprising:
End is drawn for finger or left mouse button lifts setting mark drawFinsh；
When detecting drawFinsh mark, the paintbrush width at the end of draws set distance again with to curve ending
It is lengthened.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116309941A (en) * | 2023-05-11 | 2023-06-23 | 北京元跃科技有限公司 | Mobile equipment lineation line correction method and system |
| US11687233B2 (en) | 2020-04-30 | 2023-06-27 | Boe Technology Group Co., Ltd. | Handwriting processing method, touch display device, computer device and storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699518A (en) * | 2009-10-30 | 2010-04-28 | 华南理工大学 | Method for beautifying handwritten Chinese character based on trajectory analysis |
| CN102521858A (en) * | 2011-11-28 | 2012-06-27 | 北京盛世宣合信息科技有限公司 | Handwriting generating method for electronic writing brush |
| CN103559732A (en) * | 2013-10-15 | 2014-02-05 | 锐达互动科技股份有限公司 | Method for generating writing brush handwriting |
| CN104714742A (en) * | 2013-12-12 | 2015-06-17 | 鸿合科技有限公司 | Soft pen realization method and device based on touch screen |
| CN105183341A (en) * | 2015-08-07 | 2015-12-23 | 广州汽车集团股份有限公司 | Handwriting correcting method and system of touch screen |
| CN106125963A (en) * | 2016-06-24 | 2016-11-16 | 江西金格科技股份有限公司 | On a kind of equipment without pressure sensitivity former person's handwriting Handwriting Signature System and the former person's handwriting of PDF document hand-written sign method |
| CN106293232A (en) * | 2016-08-11 | 2017-01-04 | 江苏中威科技软件系统有限公司 | A kind of hand-written inputting method realizing vigour of style in writing effect and system |
| CN107526526A (en) * | 2017-09-19 | 2017-12-29 | 广州视源电子科技股份有限公司 | Method and device for determining pressure-sensitive handwriting area |
| CN107577412A (en) * | 2017-08-08 | 2018-01-12 | 北京鑫博腾飞科技有限公司 | A kind of digital painting and calligraphy implementation method and device that sensing is lifted based on pressing |
-
2018
- 2018-09-19 CN CN201811095953.5A patent/CN109445887A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699518A (en) * | 2009-10-30 | 2010-04-28 | 华南理工大学 | Method for beautifying handwritten Chinese character based on trajectory analysis |
| CN102521858A (en) * | 2011-11-28 | 2012-06-27 | 北京盛世宣合信息科技有限公司 | Handwriting generating method for electronic writing brush |
| CN103559732A (en) * | 2013-10-15 | 2014-02-05 | 锐达互动科技股份有限公司 | Method for generating writing brush handwriting |
| CN104714742A (en) * | 2013-12-12 | 2015-06-17 | 鸿合科技有限公司 | Soft pen realization method and device based on touch screen |
| CN105183341A (en) * | 2015-08-07 | 2015-12-23 | 广州汽车集团股份有限公司 | Handwriting correcting method and system of touch screen |
| CN106125963A (en) * | 2016-06-24 | 2016-11-16 | 江西金格科技股份有限公司 | On a kind of equipment without pressure sensitivity former person's handwriting Handwriting Signature System and the former person's handwriting of PDF document hand-written sign method |
| CN106293232A (en) * | 2016-08-11 | 2017-01-04 | 江苏中威科技软件系统有限公司 | A kind of hand-written inputting method realizing vigour of style in writing effect and system |
| CN107577412A (en) * | 2017-08-08 | 2018-01-12 | 北京鑫博腾飞科技有限公司 | A kind of digital painting and calligraphy implementation method and device that sensing is lifted based on pressing |
| CN107526526A (en) * | 2017-09-19 | 2017-12-29 | 广州视源电子科技股份有限公司 | Method and device for determining pressure-sensitive handwriting area |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11687233B2 (en) | 2020-04-30 | 2023-06-27 | Boe Technology Group Co., Ltd. | Handwriting processing method, touch display device, computer device and storage medium |
| CN116309941A (en) * | 2023-05-11 | 2023-06-23 | 北京元跃科技有限公司 | Mobile equipment lineation line correction method and system |
| CN116309941B (en) * | 2023-05-11 | 2024-01-23 | 北京元跃科技有限公司 | Mobile equipment lineation line correction method and system |
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