CN107193424A - A kind of Intelligent electronic-type method for deleting and device - Google Patents
A kind of Intelligent electronic-type method for deleting and device Download PDFInfo
- Publication number
- CN107193424A CN107193424A CN201710497424.7A CN201710497424A CN107193424A CN 107193424 A CN107193424 A CN 107193424A CN 201710497424 A CN201710497424 A CN 201710497424A CN 107193424 A CN107193424 A CN 107193424A
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- China
- Prior art keywords
- erasing
- line segment
- touch
- region
- deleting
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Classifications
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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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
Abstract
The invention discloses a kind of Intelligent electronic-type method for deleting, belong to electronic whiteboard technology field.Methods described includes：Enable erasing function；According to two touch points that the mutual distance values in touch surface are maximum, generation erasing line segment；Region according to occupied by content to be erased, mobile erasing line segment, makes erasing line segment intersect with region, erasing region and the intersection point of erasing line segment.Module, generation module and erasing executing module are enabled present invention also offers a kind of device for realizing the above method, including erasing.The method for deleting that the present invention is provided, have the advantages that diameter that is more convenient, flexible, being not only restricted to erasing instrument, erasing scope can infinitely great and efficiency of erasing it is higher, it is particularly suitable for use in the erasing for the figures such as various irregular shapes, shape curvature is smaller, it can be effectively prevented from wiping by mistake, erase process is convenient and swift, applied widely.
Description
Technical field
The present invention relates to electronic whiteboard technology field, more particularly to a kind of Intelligent electronic-type method for deleting and device.
Background technology
Electronic whiteboard technology, which is one developed rapidly in recent years, is used for the software engineering discussed, imparted knowledge to students, in multiple point touching
After screen gradually moves to maturity, various multi-point touch software scenarios accordingly occur.Electronic whiteboard is using comparing in this kind of software
One of extensive software, it replaces conventional white board, is widely used in the fields such as electronics investigation, electronic instruction.Electronic whiteboard is carried
Class aids, including various pen types, brush color, thickness etc. are write for various, and application of charting is provided succinctly
Instrument, such as setting-out, circle, polygon.Electronic whiteboard also provides Eraser Tool, and existing person's handwriting is wiped.
Existing electronic whiteboard handwriting erasing function is mainly realized by following several ways：1) toolbar provides different size
Eraser Tool, different size of erasing rubber represents different erasing scopes；2) realized by hardware, for example Microsoft
Rubber function is reformed into after the lettering pen that surface is provided, upset pen；3) on some touch-screens, if it is possible to recognize
Touch objects, then defined body form for blackboard eraser, wiped using blackboard eraser.But above-mentioned three kinds of electronic whiteboard handwriting erasings
There is problems with function：1), it is necessary to which user first selects Eraser Tool when being wiped using the Eraser Tool of toolbar,
Different size of erasing scope may carry out multiple instrument selection, and very big inconvenience is brought to user；2) similar writing is used
The hardware of pen is wiped, restricted in itself to hardware, also limit software development, particularly has very big limit to erasing scope
System；3) it is restricted to the hardware platform used.
The content of the invention
In order to solve existing electronic whiteboard handwriting erasing function in-convenience in use, erasing scope is limited and applicable platform is limited
The problems such as, the invention provides a kind of Intelligent electronic-type method for deleting, including：Enable erasing function；According in touch surface
Two maximum touch points of mutual distance values, generation erasing line segment；Region according to occupied by content to be erased, the mobile wiping
Except line segment, the erasing line segment is intersected with the region, wipe the region and the intersection point of the erasing line segment.
The length of the erasing line segment changes according to the change of described two touch point spacing.
The touch surface includes touch-control large-size screen monitors, tablet personal computer touch screen or smart mobile phone touch screen.
The content to be erased includes the word or/and figure of writing.
The region is arbitrary geometry.
Present invention also offers a kind of device for realizing above-mentioned method for deleting, including erasing enable module, generation module and
Erasing executing module；The erasing enables module, for enabling erasing function；The generation module, for according to touch surface
On maximum two touch points of mutual distance values, generation erasing line segment；The erasing executing module, for according to be erased interior
Hold occupied region, the mobile erasing line segment makes the erasing line segment intersect with the region, and enabled in the erasing
The region and the intersection point of the erasing line segment are wiped in the presence of module.
The length of the erasing line segment changes according to the change of described two touch point spacing.
The touch surface includes touch-control large-size screen monitors, tablet personal computer touch screen or smart mobile phone touch screen.
The content to be erased includes the word or/and figure of writing.
The region is arbitrary geometry.
Intelligent electronic-type method for deleting and device that the present invention is provided, carry out erasing operation, with more by wiping line segment
Plus diameter that is convenient, flexible, being not only restricted to erasing instrument, erasing scope can infinitely great and efficiency of erasing it is higher the advantages of, especially
Suitable for the erasing for the figure such as various irregular shapes, shape curvature is smaller, it can be effectively prevented from wiping by mistake, erase process side
Just it is quick, it is applied widely.
Brief description of the drawings
Fig. 1 to Fig. 3 is the application example 1 of Intelligent electronic-type method for deleting of the embodiment of the present invention；
Fig. 4 to Fig. 5 is the application example 2 of Intelligent electronic-type method for deleting of the embodiment of the present invention；
Fig. 6 to Fig. 7 is the application example 3 of Intelligent electronic-type method for deleting of the embodiment of the present invention；
Fig. 8 is the apparatus structure schematic diagram provided in an embodiment of the present invention for realizing Intelligent electronic-type method for deleting.
Embodiment
With reference to the accompanying drawings and examples, technical solution of the present invention is further described.
In existing electronic whiteboard technology, written contents are carried out usually using the erasing instrument (erasing rubber) of electronic whiteboard
Erasing operation.Under normal circumstances, to be preset with multiple diameter values for selection for erasing rubber, for example：5、10、15、20、25、30、35、
40 etc.；The erasing rubber of different-diameter, represents the disposable erasable scope of erasing rubber.But exist such as in actual erase process
Lower inconvenience：1) scope if necessary to erasing is more than the disposable erasable scope of erasing rubber, then be accomplished by using rubber
Skin, which is wiped, carries out multiple erasing operation in region to be erased, so that erasing region overlay region to be erased, can so cause erasing
The reduction of efficiency；2) for the less situation of region area to be erased, due to the default diameter value of erasing rubber be unable to reach it is smaller
The requirement of area is wiped, therefore the situation that erases and should not be wiped free of often occurs, causes erasing result undesirable；3)
During being wiped using erasing rubber, because the shape of erasing rubber is fixed, such as rectangle, circle, therefore in erasing
During, erasing rubber can not change with the change of content area shape to be erased, so also occur that erase should not be by
The situation of erasing.In view of the above-mentioned problems, the embodiments of the invention provide a kind of Intelligent electronic-type method for deleting, this method includes：
Enable erasing function；According to two touch points that the mutual distance values in touch surface are maximum, generation erasing line segment；According to waiting to wipe
Except the region occupied by content, mobile erasing line segment makes erasing line segment intersect with the region, wipes the region and erasing line segment
Intersection point.In a particular application, touch surface may include touch-control large-size screen monitors, tablet personal computer touch screen or smart mobile phone touch screen etc..Under
Face illustrates the operating process of electronic type method for deleting of the embodiment of the present invention so that touch-control large-size screen monitors are electronic whiteboards as an example.
Embodiment 1
Fig. 1 is the figure being made up of on electronic whiteboard two " V " words, now will be to small " V " the font first half in the figure
Wiped, to obtain the figure shown in Fig. 3.The erase process of the present embodiment is：1) erasing rubber work is chosen on electronic whiteboard
ToolEnable erasing function；2) by least two finger touch at the top of small " V " font, and choose each other away from most
Big two fingers corresponding touch point A, B is as two end points of line segment, and generation erasing line segment AB is (because erasing line segment AB is in electricity
It is invisible on sub- blank, therefore use dashed lines labeled), as shown in Figure 2；3) region according to occupied by small " V " the font first half, leads to
Cross finger to glide to moving erasing line segment AB, erasing line segment AB is intersected with small " V " font upper half area, wipe small " V " word
Shape upper half area and erasing line segment AB intersection point, complete the erasing to small " V " font upper half area, as shown in Figure 3.Need
What is illustrated is：Also include other function instruments on electronic whiteboard shown in Fig. 1, for example：Movement, amplification instrument etc., because of itself and this
Embodiment is unrelated, therefore is not marked on Fig. 1 electronic whiteboard.
In this embodiment, it is preferred that using touch point conduct each other away from two maximum fingers on electronic whiteboard
Two end points of line segment are wiped, so can more easily implement erasing operation；Furthermore it is also possible to be realized using other objects
Touch-control on electronic whiteboard, for example：Stylus, writing pencil etc., to form touch point.Those skilled in the art can manage
Solution：If touch surface can be infinitely great, then the length each other away from the erasing line segment between two maximum touch points
Can be with endless, it means that erasing line segment can disposably wipe the region of arbitrary size area.
If the erasing operation of erasing execution of instrument the present embodiment using existing electronic whiteboard, then in erasing instrument
Wipe under diameter limitation, it is impossible to disposably quickly complete the erasing to small " V " font upper half area, but need to use wiping
Except instrument respectively along small " V " zag trajectory carries out erasing operation twice, efficiency of erasing is caused to reduce.As can be seen here, this implementation
The method for deleting that example is provided is more convenient, flexible, and is not only restricted to the diameter of erasing instrument, and erasing scope can be infinitely great, erasing
It is more efficient, it is applied widely；In addition, the length of line segment is wiped in the present embodiment to be become according to the change of touch point spacing
Change, so touch point spacing can be adjusted in real time according to the change of erasing content shape, improve disposable erasure completion rate.
Embodiment 2
Fig. 4 is the irregular figure on electronic whiteboard, now the irregular figure is wiped, to obtain shown in Fig. 5
Figure.The erase process of the present embodiment is：1) Eraser Tool is chosen on electronic whiteboardEnable erasing function；
2) by least two finger touch on the top of graphics field to be erased, and two fingers chosen each other away from maximum are corresponding
Touch point A, B as line segment two end points, generation erasing line segment AB (because erasing line segment AB on electronic whiteboard it is invisible, therefore
Use dashed lines labeled), as shown in Figure 4；3) region according to occupied by figure to be erased, erasing line is moved by finger downslide
Section AB, makes erasing line segment AB intersect with figure to be erased, wipes the intersection point of figure to be erased and erasing line segment AB, and wiping is treated in completion
Except the erasing of figure, as shown in Figure 5.It should be noted that：Also include other function instruments, example on electronic whiteboard shown in Fig. 4
Such as：Movement, amplification instrument etc., because it is unrelated with the present embodiment, therefore are not marked on Fig. 4 electronic whiteboard.
In this embodiment, it is preferred that using touch point conduct each other away from two maximum fingers on electronic whiteboard
Two end points of line segment are wiped, so can more easily implement erasing operation；Furthermore it is also possible to be realized using other objects
Touch-control on electronic whiteboard, for example：Stylus, writing pencil etc., to form touch point.Those skilled in the art can manage
Solution：If touch surface can be infinitely great, then the length each other away from the erasing line segment between two maximum touch points
Can be with endless, it means that erasing line segment can disposably wipe the region of arbitrary size area.
The irregular figure of the present embodiment is wiped according to the erasing instrument of existing electronic whiteboard, because being limited to wipe work
The diameter of tool, therefore need to move erasing instrument along the track of figure to be erased, until erasing instrument covers all figures to be erased
Shape track, completes erasing operation；It is irregular curve in view of the present embodiment graphics track to be erased, is moved through in erasing instrument
It is possible to that the incomplete situation (having left figure) of erasing occurs in journey, this is accomplished by carrying out erasing operation again, causes to wipe
Except efficiency reduction；In addition, when wiping the present embodiment figure left side protrusion to be erased point, due to the figure on the left of it
Shape is closer to the distance, even if the minimum erasing tool diameter of setting, in this case it is still possible to wipe the figure on the left of it, causes to wipe result
It is undesirable.As can be seen here, the efficiency of erasing of the present embodiment method for deleting is higher, be particularly suitable for use in various irregular shapes,
The erasing of the smaller grade figure of shape curvature, can be effectively prevented from wiping by mistake, erase process is convenient and swift, applied widely；This
Outside, the length of line segment is wiped in the present embodiment to be changed according to the change of touch point spacing, so can be according to erasing content
The change of shape adjusts touch point spacing in real time, improves disposable erasure completion rate.
Embodiment 3
Fig. 6 is the word content write on electronic whiteboard, now part erasing is carried out to the word content, to obtain Fig. 7
Shown word content.The erase process of the present embodiment is：1) Eraser Tool is chosen on electronic whiteboardEnable and wipe
Except function；2) by least two finger touch at word to be erased, and two fingers chosen each other away from maximum are corresponding
Touch point A, B as line segment two end points, generation erasing line segment AB (because erasing line segment AB on electronic whiteboard it is invisible, therefore
Use dashed lines labeled), as shown in Figure 6；3) region according to occupied by word to be erased, erasing line is moved by finger downslide
Section AB, makes erasing line segment AB intersect with word to be erased, wipes word to be erased and erasing line segment AB intersection point, and wiping is treated in completion
Except the erasing of word, as shown in Figure 7.It should be noted that：Also include other function instruments, example on electronic whiteboard shown in Fig. 6
Such as：Movement, amplification instrument etc., because it is unrelated with the present embodiment, therefore are not marked on Fig. 6 electronic whiteboard.
In this embodiment, it is preferred that using touch point conduct each other away from two maximum fingers on electronic whiteboard
Two end points of line segment are wiped, so can more easily implement erasing operation；Furthermore it is also possible to be realized using other objects
Touch-control on electronic whiteboard, for example：Stylus, writing pencil etc., to form touch point.Those skilled in the art can manage
Solution：If touch surface can be infinitely great, then the length each other away from the erasing line segment between two maximum touch points
Can be with endless, it means that erasing line segment can disposably wipe the word content of arbitrary size area.
If the erasing operation of erasing execution of instrument the present embodiment using existing electronic whiteboard, then need at least to carry out
Three erasings (wiping respectively three rows word to be erased), could wipe all files to be erased, it is impossible to disposable fast
The erasing to all words to be erased is completed fastly, causes efficiency of erasing to reduce.As can be seen here, the erasing side that the present embodiment is provided
Method is more convenient, flexible, and efficiency of erasing is higher, applied widely；In addition, the length that line segment is wiped in the present embodiment can basis
The change of touch point spacing and change, so touch point spacing can be adjusted in real time according to the change of erasing content shape, improve one
Secondary property erasure completion rate.
Embodiment 4
Referring to Fig. 8, a kind of dress for realizing the method for deleting described in above-described embodiment 1 to embodiment 3 is present embodiments provided
Put, including erasing enables module, generation module and erasing executing module；Erasing enables module, for enabling erasing function；Generation
Module, for according to two maximum touch points of the mutual distance values in touch surface, generation erasing line segment；Erasing performs mould
Block, for the region according to occupied by content to be erased, mobile erasing line segment makes erasing line segment intersect with region, and in erasing
Enable erasing region and the intersection point of erasing line segment in the presence of module.
Wherein, the length of erasing line segment changes according to the change of two touch point spacing；It is big that touch surface includes touch-control
Screen, tablet personal computer touch screen or smart mobile phone touch screen；Content to be erased includes the word or/and figure of writing；Region is to appoint
The geometry of meaning.
The device that the present embodiment is provided, with more convenient, flexible, erasing scope can infinitely great and efficiency of erasing it is higher
The advantages of, the erasing for the figures such as various irregular shapes, shape curvature is smaller is particularly suitable for use in, can be effectively prevented from wiping by mistake
Remove, erase process is convenient and swift, it is applied widely.
Intelligent electronic-type method for deleting and device provided in an embodiment of the present invention, with it is more convenient, flexible, be not only restricted to
The diameter of erasing instrument, erasing scope can infinitely great and efficiency of erasing it is higher the advantages of, be particularly suitable for use in various irregular shapes
The erasing for the figure such as shape, shape curvature is smaller, can be effectively prevented from wiping by mistake, erase process is convenient and swift, applied widely.
The length of line segment is wiped in the present embodiment to be changed according to the change of touch point spacing, so can be according to erasing content shape
Change adjust touch point spacing in real time, improve disposable erasure completion rate.
In actual applications, each functional module involved in the present embodiment and unit, can be by operating in calculating
Computer program on machine hardware realizes that described program can be stored in computer read/write memory medium, and the program is being held
During row, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described hardware is referred to comprising at one or more
Manage server or desktop computer, notebook computer of device and storage medium etc.；Described storage medium can be magnetic disc, light
Disk, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory,
RAM) etc.；The computer program is realized by being not limited to the computer languages such as C, C++.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of Intelligent electronic-type method for deleting, it is characterised in that including：Enable erasing function；According to the phase in touch surface
Two maximum touch points of mutual distance values, generation erasing line segment；Region according to occupied by content to be erased, the mobile erasing
Line segment, makes the erasing line segment intersect with the region, wipes the region and the intersection point of the erasing line segment.
2. Intelligent electronic-type method for deleting as claimed in claim 1, it is characterised in that the length of the erasing line segment is according to institute
State the change of two touch point spacing and change.
3. Intelligent electronic-type method for deleting as claimed in claim 1, it is characterised in that it is big that the touch surface includes touch-control
Screen, tablet personal computer touch screen or smart mobile phone touch screen.
4. Intelligent electronic-type method for deleting as claimed in claim 1, it is characterised in that the content to be erased includes writing
Word or/and figure.
5. Intelligent electronic-type method for deleting as claimed in claim 1, it is characterised in that the region is arbitrary geometric form
Shape.
6. a kind of device for realizing method for deleting as claimed in claim 1, it is characterised in that enable module, generation including erasing
Module and erasing executing module；The erasing enables module, for enabling erasing function；The generation module, for according to tactile
Control two touch points of the mutual distance values maximum in plane, generation erasing line segment；The erasing executing module, is treated for basis
The region occupied by content is wiped, the mobile erasing line segment makes the erasing line segment intersect with the region, and wiped described
Except the intersection point that the region and the erasing line segment are wiped in the presence of enable module.
7. device as claimed in claim 6, it is characterised in that the length of the erasing line segment is according between described two touch points
Away from change and change.
8. device as claimed in claim 6, it is characterised in that the touch surface includes touch-control large-size screen monitors, tablet personal computer touch-control
Screen or smart mobile phone touch screen.
9. device as claimed in claim 6, it is characterised in that the content to be erased includes the word or/and figure of writing.
10. device as claimed in claim 6, it is characterised in that the region is arbitrary geometry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497424.7A CN107193424A (en) | 2017-06-27 | 2017-06-27 | A kind of Intelligent electronic-type method for deleting and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497424.7A CN107193424A (en) | 2017-06-27 | 2017-06-27 | A kind of Intelligent electronic-type method for deleting and device |
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| CN107193424A true CN107193424A (en) | 2017-09-22 |
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| CN201710497424.7A Pending CN107193424A (en) | 2017-06-27 | 2017-06-27 | A kind of Intelligent electronic-type method for deleting and device |
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| CN108319391A (en) * | 2018-01-31 | 2018-07-24 | 青岛海信电器股份有限公司 | It is a kind of to wipe implementation method, device and terminal device when writing |
| CN108733293A (en) * | 2018-06-11 | 2018-11-02 | 广州视源电子科技股份有限公司 | Handwriting trace processing method and processing device |
| CN110633042A (en) * | 2019-08-23 | 2019-12-31 | 厦门亿联网络技术股份有限公司 | Handwriting erasing method, device and equipment for electronic whiteboard |
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