CN109343767A - A kind of method for deleting of electronic whiteboard - Google Patents
A kind of method for deleting of electronic whiteboard Download PDFInfo
- Publication number
- CN109343767A CN109343767A CN201811016393.XA CN201811016393A CN109343767A CN 109343767 A CN109343767 A CN 109343767A CN 201811016393 A CN201811016393 A CN 201811016393A CN 109343767 A CN109343767 A CN 109343767A
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- China
- Prior art keywords
- erasing
- electronic whiteboard
- track
- deleting
- region
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Facsimiles In General (AREA)
- Position Input By Displaying (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The present invention provides a kind of method for deleting of electronic whiteboard, comprising: step 1. draws erasing track according to the content to be wiped on the touch screen of electronic whiteboard；Step 2. sends erasing signal to blank；Step 3. electronic whiteboard judges whether the erasing signal matches preset condition, if yes then enter step 4, if not the erasing track then generated in prompt invalid operation and removal process 1 on the touchscreen；Step 4. electronic whiteboard determines erasing region according to erasing track；Step 5. wipes data and the erasing track in the erasing region.A kind of method for deleting of electronic whiteboard provided by the invention both more can accurately select the range for needing to wipe, and operation is again very simple, in scenes such as modern high-intensitive teaching, meetings in application, many efficiency can be improved.
Description
Technical field
The present invention relates to electronic whiteboard technology field more particularly to a kind of method for deleting of electronic whiteboard.
Background technique
Electronic whiteboard is a kind of high-new skill for summarizing a variety of high-tech means research and development such as sophisticated electronic technology, software technology
Art product, electronic whiteboard combination other information technological means, may be implemented paperless office and teaching, relative to traditional blank
And blackboard has apparent advantage, using more and more extensive in the scenes such as teaching, meeting.Electronic whiteboard in the prior art exists
When wiping the data write, the method for generalling use key clear screen, this method can not be wiped accurately because being full frame erasing
Except the content in some region, there are also electronic whiteboards can simulate whiteboard eraser by touching screen with palm or the back of the hand,
It is wiped by moving repeatedly and has write data, but this method operation is more complicated, usually wipes a panel region and needs palm
Simulation erasing movement repeatedly, can just wipe the data of writing in particular range back and forth.
Summary of the invention
Present invention solves the technical problem that being that erasing range electronics easy to operate again can be precisely controlled by providing one kind
The method for deleting of blank.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of method for deleting of electronic whiteboard, comprising the following steps:
Step 1. draws erasing track according to the content to be wiped on the touch screen of electronic whiteboard；
Step 2. sends erasing signal to blank；
Step 3. electronic whiteboard judges whether the erasing signal matches preset condition, if yes then enter step 4；
Step 4. electronic whiteboard determines erasing region according to erasing track；
Step 5. wipes data and the erasing track in the erasing region.
Further, the step 4 determines erasing region specifically: judge whether the erasing track is closed figure,
If it is erasing region is inside closed figure.
Further, the step 4 determines erasing region specifically: judges whether the erasing track is close to closed
Figure, the both ends that if it is electronic whiteboard connects erasing track automatically form closed figure, and erasing region is the Closed Graph
Inside shape.
Further, the step 4 determines erasing region specifically: judges whether the erasing track is to meet default item
The open line segment of part, if it is wiping region is data area relevant to erasing track.
Further, it is described to the data that the relevant data area in erasing track is the covering of entire erasing track and with it is upper
It states data and writes the data that the time difference meets preset range.
Further, it is described to the data that the relevant data area in erasing track is the covering of entire erasing track and with it is upper
State the data that data belong to preset identical ranks.
Further, further include between the step 1 and the step 2 determine the erasing track whether with default wiping
The step of being consistent except condition 2 are entered step if meeting, if not meeting the erasing track retained in step 1.
Further, the preset condition is to wipe the width of track greater than preset value, whether determines the erasing track
It is consistent with default erased conditions including whether the width for wiping track in determination step 1 is greater than preset value.
Further, the preset condition in the step 3 be at the appointed time multiple point touching screen any region or
In the predeterminated position touch operation of touch screen.
Further, the preset condition in the step 3 is the specific character of default vocal print feature value or acoustic control identification.
Compared with the prior art, the advantages of the present invention are as follows:
A kind of method for deleting of electronic whiteboard provided by the invention both more can accurately select the range for needing to wipe,
Operation is again very simple, in scenes such as modern high-intensitive teaching, meetings in application, many efficiency can be improved.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the method for deleting of electronic whiteboard of the present invention.
Fig. 2 is a kind of example 1 of erasing track described in the specific embodiment of the invention.
Fig. 3 is a kind of example 2 of erasing track described in the specific embodiment of the invention.
Fig. 4 is a kind of example 3 of erasing track described in the specific embodiment of the invention.
Fig. 5 is a kind of example 4 of erasing track described in the specific embodiment of the invention.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
A kind of method for deleting of electronic whiteboard, specific implementation step are as shown in Figure 1 are as follows:
Step 1. draws erasing track according to the content to be wiped on the touch screen of electronic whiteboard；
Step 2. sends erasing signal to blank；
Step 3. electronic whiteboard judges whether the erasing signal matches preset condition, if yes then enter step 4；
Step 4. electronic whiteboard determines erasing region according to erasing track；
Step 5. wipes data and the erasing track in the erasing region.
Further, if not corresponding other operations are then carried out in step 3, as retained the erasing generated in step 1
The erasing track generated in track, or erasing step 1.
In step 3, if erasing signal is not mismatched with preset condition, it is determined as common writing or setting-out operation,
It is not deleted on electronic whiteboard touch screen, retains its track.
Further preferably, the step 4 determines erasing region specifically: judges whether the erasing track is Closed Graph
Shape, if it is wiping region is inside closed figure, as shown in Fig. 2, when erasing track is a closed figure, so erasing
Region is inside closed figure, includes " exemplary textual " 4 character datas.
Further preferably, the step 4 determines erasing region specifically: judges whether the erasing track is to approach closing
Figure, if it is wiping region is close to closed figure inside, as shown in figure 3, when a non-close is in erasing track
Figure, but close to closed figure, the both ends that electronic whiteboard connects erasing track automatically form closed figure as shown in figure 4, erasing
Region is inside the closed figure, includes " exemplary textual " 4 character datas.
Further preferably, the step 4 determines erasing region specifically: judges whether the erasing track is to meet to preset
The open line segment of condition, if it is wiping region is data area relevant to erasing track as shown in figure 5, with erasing rail
The relevant data area of mark includes " exemplary textual " 4 character datas.In the present embodiment, open line segment preferably refers to line segment not
A closed region is constituted, alternatively, the head and the tail of line segment are not attached to；Preset condition be preferably line segment head and the tail two-end-point distance with
The ratio of line segment length meets preset threshold value, such as larger than 0.8.
Further preferably, it is described to the data that the relevant data area in erasing track is the covering of entire erasing track and with
The above-mentioned data writing time difference meets the data of preset range, as shown in figure 5, having major part in " exemplary textual " 4 characters
Stroke is to be wiped free of track to be covered, and there are also the horizontal tracks that is not wiped free of in some strokes such as " showing " word the top one to cover, still
This it is horizontal write when be wiped free of track covering " showing " word below lifting-hook stroke writing time difference within a preset range, institute
It horizontal is also belonged to and the relevant data area in erasing track with also above-mentioned one.
Further, it is described to the data that the relevant data area in erasing track is the covering of entire erasing track and with it is upper
The data that data belong to preset identical ranks are stated, as shown in figure 5, " exemplary textual " is colleague's data in presetting, so " showing
4 character datas of example text word " belong to data area relevant to erasing track.
Further preferably, further include between the step 1 and the step 2 determine the erasing track whether with it is default
The step of erased conditions are consistent 2 are entered step if meeting, if not meeting the erasing track retained in step 1.It can divide in advance
Distinguish whether erasing track is common written operation, improves the corresponding efficiency and accuracy rate of system.
Further preferably, the preset condition is to wipe the width of track greater than preset value, determines that the erasing track is
It is no to be consistent with default erased conditions including whether the width for wiping track in determination step 1 is greater than preset value.The rail of common written
Stitch width is relatively narrow, when needing to delete, can artificially increase the contact area with touch screen, and such as multiple finger manipulations or palm operate picture
Track is wiped out, to increase the width of erasing track, to distinguish common written track.
Further preferably, the preset condition in the step 3 is multiple point touching screen any region at the appointed time
Or the predeterminated position touch operation in touch screen.
Further preferably, the preset condition in the step 3 is the specific character of default vocal print feature value or acoustic control identification.
A kind of method for deleting of electronic whiteboard provided by the invention both more can accurately select the range for needing to wipe,
Operation is again very simple, in scenes such as modern high-intensitive teaching, meetings in application, many efficiency can be improved.
Although the present invention is disclosed as above with preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (10)
1. a kind of method for deleting of electronic whiteboard, it is characterised in that: the following steps are included:
Step 1. draws erasing track according to the content to be wiped on the touch screen of electronic whiteboard；
Step 2. electron blank sends erasing signal；
Step 3. electronic whiteboard judges whether the erasing signal matches preset condition, if yes then enter step 4；
Step 4. electronic whiteboard determines erasing region according to erasing track；
Step 5. wipes data and the erasing track in the erasing region.
2. a kind of method for deleting of electronic whiteboard according to claim 1, it is characterised in that: determine and wipe described in step 4
Except region is specially to judge whether the erasing track is closed figure, if it is wiping region is inside closed figure.
3. a kind of method for deleting of electronic whiteboard according to claim 1, it is characterised in that: determine and wipe described in step 4
Except region is specially to judge whether the erasing track is close to closed figure, if it is electronic whiteboard connects erasing automatically
The both ends of track form closed figure, and erasing region is inside the closed figure.
4. a kind of method for deleting of electronic whiteboard according to claim 1, it is characterised in that: determine and wipe described in step 4
Except region is specially to judge whether the erasing track is the open line segment for meeting preset condition, if it is wiping region is
Data area relevant to erasing track.
5. a kind of method for deleting of electronic whiteboard according to claim 4, it is characterised in that: described related to erasing track
Data area be the data of entire erasing track covering and write the data that the time difference meets preset range with above-mentioned data.
6. a kind of method for deleting of electronic whiteboard according to claim 4, it is characterised in that: described related to erasing track
Data area be the data of entire erasing track covering and the data for belonging to preset identical ranks with above-mentioned data.
7. a kind of method for deleting of electronic whiteboard according to claim 1 to 6, it is characterised in that: in the step
Further include the steps that determining whether the erasing track is consistent with default erased conditions between rapid 1 and the step 2, if meeting
2 are entered step, the erasing track in step 1 is retained if not meeting.
8. a kind of method for deleting of electronic whiteboard according to claim 7, it is characterised in that: the preset condition is erasing
The width of track is greater than preset value, determines whether the erasing track is consistent with default erased conditions including wiping in determination step 1
Except whether the width of track is greater than preset value.
9. a kind of method for deleting of electronic whiteboard according to claim 1 to 6, it is characterised in that: the step
Preset condition in 3 is that multiple point touching screen any region or the predeterminated position in touch screen touch behaviour at the appointed time
Make.
10. a kind of method for deleting of electronic whiteboard according to claim 1 to 6, it is characterised in that: the step
Preset condition in rapid 3 is the specific character of default vocal print feature value or acoustic control identification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811016393.XA CN109343767A (en) | 2018-08-31 | 2018-08-31 | A kind of method for deleting of electronic whiteboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811016393.XA CN109343767A (en) | 2018-08-31 | 2018-08-31 | A kind of method for deleting of electronic whiteboard |
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| Publication Number | Publication Date |
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| CN109343767A true CN109343767A (en) | 2019-02-15 |
Family
ID=65292478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811016393.XA Pending CN109343767A (en) | 2018-08-31 | 2018-08-31 | A kind of method for deleting of electronic whiteboard |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596661A (en) * | 2020-12-24 | 2021-04-02 | 广州视源电子科技股份有限公司 | Writing track processing method and device and interactive panel |
| CN113345384A (en) * | 2021-05-28 | 2021-09-03 | 深圳市爱码讯实业发展有限公司 | Handwriting erasing method and system for handwriting board |
| CN114003145A (en) * | 2021-11-01 | 2022-02-01 | 深圳市康冠商用科技有限公司 | Touch screen writing and erasing method and device, electronic whiteboard and storage medium |
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| CN112596661A (en) * | 2020-12-24 | 2021-04-02 | 广州视源电子科技股份有限公司 | Writing track processing method and device and interactive panel |
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| CN114003145A (en) * | 2021-11-01 | 2022-02-01 | 深圳市康冠商用科技有限公司 | Touch screen writing and erasing method and device, electronic whiteboard and storage medium |
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