CN109285206A - A kind of method and device of lines inductive pick-up - Google Patents
A kind of method and device of lines inductive pick-up Download PDFInfo
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- CN109285206A CN109285206A CN201811093936.8A CN201811093936A CN109285206A CN 109285206 A CN109285206 A CN 109285206A CN 201811093936 A CN201811093936 A CN 201811093936A CN 109285206 A CN109285206 A CN 109285206A
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- 230000001939 inductive effect Effects 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 5
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 230000014509 gene expression Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 6
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Classifications
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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
- G06T11/80—Creating or modifying a manually drawn or painted image using a manual input device, e.g. mouse, light pen, direction keys on keyboard
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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
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Abstract
The present invention provides a kind of methods of lines inductive pick-up, by the starting point coordinate and terminal point coordinate that obtain lines in drawing, multiple interpolated coordinates in the lines between starting point coordinate and terminal point coordinate are added further according to interpolation method, obtain the pickup point coordinate of the drawing, and when the pickup point coordinate is adjacent to the lines, screen the interpolated coordinates of the neighbouring pickup point coordinate, and mark the interpolated coordinates being screened, the method of lines inductive pick-up of the present invention can effectively promote sensitivity and accuracy when lines pick up in user's operation drawing.
Description
Technical field
The present invention relates to lines field of drawing, and especially with regard to a kind of method and device of lines inductive pick-up.
Background technique
As under the development of computer graphics software, present situation designer is carried out using computer aided design software
Design replaces the mode of the drawing of Freehandhand-drawing in the past, desin speed and efficiency is substantially improved, has become drawing personnel or designer
Indispensable drafting instrument.For designer, many entity lines, segment and mark are covered in a drawing
Note etc., such vast number and intensive entity sets, when designer often being allowed to select single or part entity by mouse,
It is not easy to choose target entity, especially lines.The problem equally occur mobile device (such as: smart phone, Intelligent flat
Deng) on, the finger belly for operating to penetrate finger of especially mobile device carries out, and the Operational Figure Of Merit that finger belly compares mouse is low, and moves
It is smaller that the screen of dynamic equipment compares computer screen, in this way, when user is drawn using operation mobile device, even more
It is not easy to choose target lines.Therefore, the sensitivity and accuracy when lines pick up in user's operation drawing how effectively to be promoted
The problem of, it has also become it is engaged in the important topic that those skilled in the art are studied.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of can promote drawing
The method and device of the lines inductive pick-up of sensitivity and accuracy that middle lines pick up.
The technical solution adopted by the present invention to solve the technical problems is: a kind of method of lines inductive pick-up, the side
Method includes:
Obtain the starting point coordinate and terminal point coordinate of lines in drawing；
Multiple interpolated coordinates in the lines between starting point coordinate and terminal point coordinate are added according to interpolation method；
Obtain the pickup point coordinate of the drawing；
When the pickup point coordinate is adjacent to the lines, the interpolated coordinates of the neighbouring pickup point coordinate are screened, and are marked
Remember the interpolated coordinates being screened.
In method of the present invention, the interpolation method addition step includes:
Calculate the total length of the lines；
Calculate the reciprocal value of the total length；
The multiple interpolated coordinates are distributed between the starting point coordinate and the terminal point coordinate according to the reciprocal value.
In method of the present invention, the interpolated coordinates allocation step includes:
According to the starting point coordinate (X1,Y1), the terminal point coordinate (X2,Y2), the reciprocal value (deltt) it is interior with parameter (t)
Interpolation expressions: X=t × X1+(1-t)×X2, Y=t × Y1+(1-t)×Y2, wherein parameter (t) is incremented by deltt to 1 by 0 every time,
To calculate each interpolated coordinates (X, Y)；
By each interpolated coordinates sequence between the starting point coordinate and the terminal point coordinate.
In method of the present invention, the lines are straight line or curve.
The present invention separately proposes a kind of device of the lines inductive pick-up of adopting said method, and described device includes:
Module is obtained, to obtain the starting point coordinate of lines in drawing, terminal point coordinate and pickup point coordinate；
Calculation process module, to add multiple interpolations in the lines between starting point coordinate and terminal point coordinate according to interpolation method
Coordinate；
Screening module to screen the interpolated coordinates of the neighbouring pickup point coordinate, and marks the interpolation being screened
Coordinate.
In device of the present invention, total length and the total length of the calculation process block to calculate the lines
Reciprocal value, distribute the multiple interpolated coordinates between the starting point coordinate and the terminal point coordinate according to the reciprocal value.
In device of the present invention, the calculation process block further include:
Interpolated value computing unit, to according to the starting point coordinate (X1,Y1), the terminal point coordinate (X2,Y2), the reciprocal value
(deltt) with the interpolated value calculating formula of parameter (t): X=t × X1+(1-t)×X2, Y=t × Y1+(1-t) ×Y2, wherein parameter
(t) it is incremented by deltt to 1 every time by 0, to calculate each interpolated coordinates (X, Y)；
Sequencing unit, sorting each interpolated coordinates between the starting point coordinate and the terminal point coordinate.
In device of the present invention, the lines are straight line or curve.
The present invention separately proposes a kind of electronic equipment using the method, including processor, communication interface, memory and communication
Bus, wherein processor, communication interface, memory complete mutual communication by communication bus；
The memory, to store computer program；
The processor, when executing the program stored on memory, the method for realizing above-mentioned lines inductive pick-up.
The method for implementing lines inductive pick-up of the invention has the advantages that by obtaining lines in drawing
Starting point coordinate and terminal point coordinate add multiple interpolations in the lines between starting point coordinate and terminal point coordinate further according to interpolation method
Coordinate obtains the pickup point coordinate of the drawing, and when the pickup point coordinate is adjacent to the lines, screening is picked up adjacent to described
The interpolated coordinates of a coordinate are taken, and mark the interpolated coordinates being screened, so the side of lines inductive pick-up of the present invention
Method can effectively promote sensitivity and accuracy when lines pick up in user's operation drawing, and operation when enhancement user charts is just
Benefit.On the other hand, the present invention proposes to apply device, electronic equipment and the computer readable storage medium of the above method, and energy
Realize the purpose and benefit with the method for above-mentioned lines inductive pick-up.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the step flow chart of one embodiment of method of lines inductive pick-up of the present invention；
Fig. 2 is the one embodiment drawing schematic diagram of method of lines inductive pick-up of the present invention；
Fig. 3 is the step flow chart of interpolated coordinates addition；
Fig. 4 is the step flow chart of another embodiment of method of lines inductive pick-up of the present invention；
Fig. 5 is the drawing schematic diagram of the another embodiment of method of lines inductive pick-up of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the step flow chart of one embodiment of method of lines inductive pick-up of the present invention, and the drawing that Fig. 2 is Fig. 1 is illustrated
Figure.As shown in Figures 1 and 2, the lines inductive pick-up of the embodiment of the present invention method the following steps are included:
Step S10: the starting point coordinate and terminal point coordinate of lines in drawing are obtained；
Step S20: multiple interpolated coordinates in the lines between starting point coordinate and terminal point coordinate are added according to interpolation method；
Step S30: the pickup point coordinate of the drawing is obtained；
Step S40: when the pickup point coordinate is adjacent to the lines, the interior jack of the neighbouring pickup point coordinate is screened
Mark, and mark the interpolated coordinates being screened.
In step slo, the drawing 100 is, for example, the system opened after user is networked by computer, intelligent apparatus
Figure webpage includes lines L1 in drawing 100, and lines L1 is, for example, the editor completed before operation, passes through webpage embedded programming
Module obtains the starting point coordinate P1 and terminal point coordinate P2 of lines L1, and wherein the position of starting point coordinate P1 and terminal point coordinate P2 is distinguished
For (X1, Y1) and (X2, Y2).It need to supplement, this webpage embedded programming module can directly execute this without additional installation software
The position acquisition function of lines L1.
In step S20, the webpage embedded programming module can use interpolation method, according to starting point coordinate P1 and terminal point coordinate
P2 calculates multiple interpolated coordinates, and multiple interpolated coordinates are added between the starting point coordinate P1 and terminal point coordinate P2.
In step s 30, the webpage embedded programming module reads mouse M1 in drawing 100, and obtains mouse M1 and (pick up
Point coordinate) position (Xm, Ym).
In step s 40, when user is moved to neighbouring lines L1 with mouse M1, and the distance between mouse M1 and lines L1
Reach the preset detecting of designer apart from when, the webpage embedded programming module is to calculate mouse M1 and each interpolated coordinates
Distance, filters out apart from shortest interpolated coordinates, and it is most short that be with position P3 and mouse M1 distance in drawing 100 be, then will be pre-
The marker graphic (Fig. 2 is X font) being first arranged is labeled in position P3, at this point, user can pick up lines L1 from drawing 100.
In addition, in other embodiments, labeling form can also regard user demand adjustment, and while lines L1 is picked, also can
By the color change of lines L1, for example significant red or any other color reminds the user that pickup is completed in lines L1,
Or lines L1 can also be in flashing aspect when being picked.In this way, the method for the lines inductive pick-up of the embodiment of the present invention, really can
The sensitivity and accuracy when lines L1 is picked up in user's operation drawing 100 are effectively promoted, operation when enhancement user charts is just
Benefit.
Furthermore, it is understood that understand that multiple jack targets of lines L1 described in the embodiment of the present invention calculate the side with addition
Method, Fig. 3 are the step flow chart of interpolated coordinates addition in Fig. 1.As shown in figure 3, the interpolation method described in step S20, may be used also
The following steps are included:
Step S21: the total length of the lines is calculated；
Step S22: the reciprocal value of the total length is calculated；
Step S23: according to the reciprocal value distribute the multiple interpolated coordinates in the starting point coordinate and the terminal point coordinate it
Between.
In step S21 into step S23, according to the pixel quantity that lines L1 is covered in drawing 100, lines L1 is calculated
Total length.This total length is subjected to calculating reciprocal again, to generate the spacing reference value of each multiple interpolated coordinates, thus according to
The spacing reference value arranges multiple interpolated coordinates and arrives between starting point coordinate P1 and terminal point coordinate P2, in this way, by above-mentioned multiple slotting
Lines L1 can be divided into cover multiple jack marks, starting point coordinate P1 and terminal point coordinate in fact by the step of calculating and addition of coordinate
The composition of P2 executes step S30 and step S40 to connect, finds out position P3 to complete the pickup actuation of lines L1.
On the other hand, Fig. 2 of foregoing invention embodiment be by lines L1 belong to line-type for, and can pass through straight line it is interior
Interpolation expressions generate the multiple interpolated coordinates.Specifically, Fig. 4 is another implementation of method of lines inductive pick-up of the present invention
The step flow chart of example, as shown in figure 4, the method for the lines inductive pick-up is further comprising the steps of:
Step S24: according to the starting point coordinate (X1,Y1), the terminal point coordinate (X2,Y2), the reciprocal value (deltt) and become
The interpolated value calculating formula of number (t): X=t × X1+(1-t) ×X2, Y=t × Y1+(1-t) ×Y2, wherein parameter (t) is passed every time by 0
Increase deltt to 1, to calculate each interpolated coordinates (X, Y)；
Step S25: by each interpolated coordinates sequence between the starting point coordinate and the terminal point coordinate.
In step s 24, it is straight line in response to lines L1 in Fig. 2, generates by executing above-mentioned steps S21 to step S22
Numerical value (deltt), then the importing for parameter (t) of arranging in pairs or groups can calculate each interpolated coordinates (X, Y), it should be noted that, it is based on
Lines L1 is straight line, and each interpolated coordinates in lines L1 are in slope variation is determined, so can be using solid between each interpolated coordinates
The fixed spacing reference value, and the parameter can adopt increment mode and substitute into calculating, generate each interpolated coordinates.Although in addition,
Above-mentioned is to point out increment mode, but can also be inverted calculating in other embodiments, and take decline mode, therefore the present invention and be not added
With limitation.
On the other hand, although the lines of above-described embodiment are straight line, in other embodiments, lines are also also song
Line, and the method for lines inductive pick-up of the present invention is also applicable in, for example, lines are curve in an alternative embodiment of the invention,
Detailed description are as follows.
Fig. 5 is the drawing schematic diagram of the another embodiment of method of lines inductive pick-up of the present invention, as shown in figure 5, in drawing
It include lines L2 in 100a, and lines L2 belongs to conic section and can also execute similar as user's operation mouse M2 lines L2 to be picked up
Step in above-mentioned Fig. 1 goes out position by obtaining starting point coordinate P4 and terminal point coordinate P5, then by the interpolation calculation of conic section
Multiple interpolated coordinates between starting point coordinate P4 and terminal point coordinate P5, and when mouse M2 is adjacent to lines L2, then it can screen neighbour
The interpolated coordinates P6 of nearly mouse M2 coordinate, and the interpolated coordinates P6 being screened is marked, at this point, user can pick up from drawing 100a
Line taking L2.In this way, it is curve type that the method for lines inductive pick-up of the present invention, which is also useful in lines, and belong to it in lines
When his type lines, then only need to give and being easily achievable using other interpolated value calculating methods or approximatioss.
For supplement, in the drawing 100 of the above inventive embodiments, although be only with a lines L1 or lines L2 into
Row explanation, but in other embodiments, drawing 100 can also have the pre-rendered multiple lines of user, segment, plug-in unit etc., and
When the mobile neighbouring lines entity to be picked up of the mouse of user, then the step of executing above-mentioned lines inductive pick-up can be connected, i.e.,
Step S30, step S40 as shown in figure 1, and when user is intended to pick up the lines, and has another lines of the neighbouring lines, then it can root
Judge according to the preset detecting distance of designer, so the method for inductive pick-up will be with pickup point position through the invention
The lines entity of (mouse) shortest distance picks up, and improves the efficiency of user's drawing.In addition, if mouse phase at a distance from two lines
Meanwhile user then needs slightly to move mouse to the distance for being intended to pick up the lines and comparing another lines and comes closely, then can be carried out completion
The picking action of the lines.In addition, a kind of above-mentioned situation that only embodiment of the present invention is applied, and not all situation, and this
Inventive embodiments are not limited system.
It furthermore also can be to calculate in other embodiments although the above inventive embodiments are so that webpage charts as an example
The mapping software of machine, intelligent apparatus or other external devices equally can also reach the purpose and benefit of similar above-described embodiment, lift
Example is described as follows.
The present invention separately proposes a kind of device of the lines inductive pick-up of adopting said method, described device include obtain module,
Calculation process module and screening module.The acquisition module is to obtain the starting point coordinate of lines, terminal point coordinate in drawing and pick up
Take a coordinate.The calculation process module according to interpolation method to add in the lines between starting point coordinate and terminal point coordinate
Multiple interpolated coordinates.The screening module is marked and is sieved to screen the interpolated coordinates of the neighbouring pickup point coordinate
The interpolated coordinates of choosing.
Furthermore, it is understood that the acquisition module is sat to execute in Fig. 1 step S10 and step S30 with obtaining starting point in Fig. 2
Mark the coordinate of P1, terminal point coordinate P2 and mouse M1.The calculation process module is to execute in Fig. 1 step in step S20, Fig. 3
S21 is to step 23, to calculate the multiple interpolated coordinates and arrange.When the lines to be picked up are straight line, the operation
Processing module may also include interpolated value computing unit and sequencing unit, by the interpolated value computing unit and sequencing unit, hold
Step S24 and step S25 in row Fig. 4 completes interpolated coordinates and calculates and arrange.And the lines to be picked up be curve when, then can adopt
With the interpolation calculation of conic section and arranged.Each interpolated coordinates and mouse position are carried out most finally by screening module
Short distance screening, screens being marked for position, then completes the picking action of lines.
In this way, side of the device of lines inductive pick-up of the present invention because of application foregoing invention embodiment lines inductive pick-up
Method is able to achieve purpose and benefit with the method for above-mentioned lines inductive pick-up.
The device of similar foregoing invention embodiment lines inductive pick-up, the present invention also propose a kind of electronics using the method
Equipment, including processor, communication interface, memory and communication bus, wherein processor, communication interface, memory pass through communication
Bus completes mutual communication, stores computer program by the memory, then by the processor, execute memory
On stored program when, the method for realizing above-mentioned lines inductive pick-up is able to achieve the method with above-mentioned lines inductive pick-up
Purpose and benefit.
It is described computer-readable to deposit in addition, the present invention is it is also proposed that a kind of computer readable storage medium using the method
Computer program is stored in storage media, the computer program realizes above-mentioned lines inductive pick-up when being executed by processor
Method is able to achieve purpose and benefit with the method for above-mentioned lines inductive pick-up.
The method for implementing lines inductive pick-up of the invention has the advantages that by obtaining lines in drawing
Starting point coordinate and terminal point coordinate add multiple interpolations in the lines between starting point coordinate and terminal point coordinate further according to interpolation method
Coordinate obtains the pickup point coordinate of the drawing, and when the pickup point coordinate is adjacent to the lines, screening is picked up adjacent to described
The interpolated coordinates of a coordinate are taken, and mark the interpolated coordinates being screened, so the side of lines inductive pick-up of the present invention
Method can effectively promote sensitivity and accuracy when lines pick up in user's operation drawing, and operation when enhancement user charts is just
Benefit, in addition, and when in drawing include multiple lines when, then can through the invention inductive pick-up method will with pick up point
The lines entity for setting (mouse) shortest distance picks up, and improves the efficiency of user's drawing.In addition, lines inductive pick-up of the present invention
Method is suitable for the pickup of straight line, curve or other types lines.Furthermore the present invention proposes to apply device, the electricity of the above method
Sub- equipment and computer readable storage medium, and it is able to achieve purpose and benefit with the method for above-mentioned lines inductive pick-up.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of method of lines inductive pick-up, which is characterized in that the described method includes:
Obtain the starting point coordinate and terminal point coordinate of lines in drawing；
Multiple interpolated coordinates in the lines between starting point coordinate and terminal point coordinate are added according to interpolation method；
Obtain the pickup point coordinate of the drawing；
When the pickup point coordinate is adjacent to the lines, the interpolated coordinates of the neighbouring pickup point coordinate are screened, and are marked
Remember the interpolated coordinates being screened.
2. the method for lines inductive pick-up according to claim 1, which is characterized in that the interpolation method adds step and includes:
Calculate the total length of the lines；
Calculate the reciprocal value of the total length；
The multiple interpolated coordinates are distributed between the starting point coordinate and the terminal point coordinate according to the reciprocal value.
3. the method for lines inductive pick-up according to claim 2, which is characterized in that the interpolated coordinates allocation step packet
It includes:
According to the starting point coordinate (X1,Y1), the terminal point coordinate (X2,Y2), the reciprocal value (deltt) it is interior with parameter (t)
Interpolation expressions calculate each interpolated coordinates (X, Y): X=t × X1+(1-t)×X2, Y=t × Y1+(1-t)×Y2, wherein
Parameter (t) is incremented by deltt to 1 by 0 every time；
By each interpolated coordinates sequence between described coordinate and the terminal point coordinate.
4. the method for lines inductive pick-up according to claim 1, which is characterized in that the lines are straight line or curve.
5. a kind of device of lines inductive pick-up, which is characterized in that described device includes:
Module is obtained, to obtain the starting point coordinate of lines in drawing, terminal point coordinate and pickup point coordinate；
Calculation process module, to add multiple interpolations in the lines between starting point coordinate and terminal point coordinate according to interpolation method
Coordinate；
Screening module to screen the interpolated coordinates of the neighbouring pickup point coordinate, and marks the interpolation being screened
Coordinate.
6. the device of lines inductive pick-up according to claim 5, which is characterized in that the calculation process block is to calculate
The total length of lines and the reciprocal value of the total length are stated, distributes the multiple interpolated coordinates in described according to the reciprocal value
Between point coordinate and the terminal point coordinate.
7. the device of lines inductive pick-up according to claim 6, which is characterized in that the calculation process block further include:
Interpolated value computing unit, to according to the starting point coordinate (X1,Y1), the terminal point coordinate (X2,Y2), the reciprocal value
(deltt) with the interpolated value calculating formula of parameter (t): X=t × X1+(1-t)×X2, Y=t × Y1+(1-t)×Y2, wherein parameter (t)
Range is fallen between 0 to 1, and wherein parameter (t) is by 0 incremental deltt to 1 every time, to calculate each interpolated coordinates (X,
Y)；
Sequencing unit, sorting each interpolated coordinates between described coordinate and the terminal point coordinate.
8. the device of lines inductive pick-up according to claim 5, which is characterized in that the lines are straight line or curve.
9. a kind of electronic equipment, including processor, communication interface, memory and communication bus, wherein processor, communication interface,
Memory completes mutual communication by communication bus；
The memory, to store computer program；
The processor when executing the program stored on memory, realizes the described in any item lines of claim 1-4
The method of inductive pick-up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093936.8A CN109285206A (en) | 2018-09-19 | 2018-09-19 | A kind of method and device of lines inductive pick-up |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811093936.8A CN109285206A (en) | 2018-09-19 | 2018-09-19 | A kind of method and device of lines inductive pick-up |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603791A (en) * | 1983-06-21 | 1985-01-10 | Sairatsuku:Kk | Picking system |
| JPH02240776A (en) * | 1989-03-15 | 1990-09-25 | Hitachi Ltd | Straight line picking system and curve generating system |
| US5825947A (en) * | 1995-09-01 | 1998-10-20 | Olympus Optical Co., Ltd. | Optical reproducing system for multimedia information recorded with code data having function for correcting image reading distortion |
| 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 |
| CN103530021A (en) * | 2013-10-18 | 2014-01-22 | 苏州浩辰软件股份有限公司 | Entity selection method and device in drawing |
-
2018
- 2018-09-19 CN CN201811093936.8A patent/CN109285206A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603791A (en) * | 1983-06-21 | 1985-01-10 | Sairatsuku:Kk | Picking system |
| JPH02240776A (en) * | 1989-03-15 | 1990-09-25 | Hitachi Ltd | Straight line picking system and curve generating system |
| US5825947A (en) * | 1995-09-01 | 1998-10-20 | Olympus Optical Co., Ltd. | Optical reproducing system for multimedia information recorded with code data having function for correcting image reading distortion |
| 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 |
| CN103530021A (en) * | 2013-10-18 | 2014-01-22 | 苏州浩辰软件股份有限公司 | Entity selection method and device in drawing |
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Application publication date: 20190129 |