CN105808083B - Display method and device - Google Patents
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- CN105808083B CN105808083B CN201410841716.4A CN201410841716A CN105808083B CN 105808083 B CN105808083 B CN 105808083B CN 201410841716 A CN201410841716 A CN 201410841716A CN 105808083 B CN105808083 B CN 105808083B
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Abstract
The invention discloses a display method and a display device, wherein the method comprises the following steps: receiving stroke point information input by a user in a touch manner; judging whether stroke point information corresponding to the touch instruction can be identified; fitting the stroke point information into a writing track consisting of continuous line segments; selecting a plurality of key points on each line segment of the writing track; reading a specified particle picture or animation clip; loading the picture or the animation clip on all key points of the writing track; the pictures or animation clips on all the key points are respectively moved on the screen. The display method provided by the invention can condense light in the selected area, perform distinctive display according to the required parameters such as the display track length, time, density and the like, and optimize the use effect of electronic equipment such as an electronic whiteboard and the like.
Description
Technical Field
The present invention relates to display control of a touch screen, and in particular, to a display method and apparatus.
Background
In recent years, with the popularization of touch screen technology, handwriting input systems (e.g., touch pads, touch screens, etc.) have been widely used in devices such as tablet computers, wireless terminals, etc., so that users can directly input handwriting manually. The electronic whiteboard is a touch screen product which is rapidly developed, various high-tech means such as a tip electronic technology, a software technology and the like are collected, paperless office work or teaching and the like can be realized by combining a computer and other equipment, and the electronic whiteboard can be directly written by a pen like a common whiteboard or a teaching blackboard through a specific handwriting input system.
Because the electronic whiteboard is often applied to occasions such as teaching, in teaching practice, the electronic whiteboard is required to fully exert the function of assisting teaching.
Disclosure of Invention
In view of the above, the present invention provides a display method and device for displaying a touch signal on a touch screen, which can better cooperate with a teacher to perform teaching activities.
According to one embodiment of the invention, a display method is provided and applied to electronic whiteboard software.
The display method provided by the embodiment of the invention comprises the following steps: receiving stroke point information input by a user in a touch manner; judging whether stroke point information corresponding to the touch instruction can be identified; fitting the stroke point information into a writing track consisting of continuous line segments; selecting a plurality of key points on each line segment of the writing track; reading a specified particle picture or animation clip; loading the picture or the animation clip on all key points of the writing track; the pictures or animation clips on all the key points are respectively moved on the screen.
Wherein, fitting the stroke point information into a writing track consisting of continuous line segments comprises: and judging whether the stroke point information can be fitted into a line segment, if not, further judging whether the stroke can be covered by the combination of a plurality of line segments, if so, further judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and if not, connecting the end point of each line segment and the starting point of the adjacent line segment by using the line segment to form a writing track consisting of continuous line segments.
Judging whether the strokes can be fitted into a line segment, and judging whether stroke point information which is not judged currently can be linearly regressed to a straight line at intervals of a certain time delay; judging whether the stroke can be covered by the combination of a plurality of line segments, and judging whether the stroke point information which is not judged at present can linearly return to a straight line or not when judging that the stroke point information which is not judged at present can not linearly return to a straight line at intervals of certain time delay, wherein the square of the number of the straight lines is less than the point number of the stroke point information; and judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and judging whether the distance between the end point of each line segment on the plurality of straight lines and the starting point of the adjacent line segment is zero or not when the stroke point information which is not judged to be incapable of linearly regressing to one straight line is linearly regressed to the plurality of straight lines at present.
Each line segment end point is connected with the adjacent line segment starting point by a line segment, and each line segment end point on the plurality of straight lines is connected with the starting point by the end point with the distance which is not zero with the adjacent line segment starting point.
In addition, a plurality of key points are selected on each line segment of the stroke, and are selected at equal intervals on each line segment of the stroke according to the preset particle density, wherein the number of the key points on the unit length of each line segment of the stroke is equal to the preset particle density.
Reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the stroke, wherein all the picture or animation clip is read and randomly loaded to all the key points; or, reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the stroke, in order to read all the pictures or animation clips, and loading the pictures or animation clip to all the key points according to a preset certain sequence.
Furthermore, the pictures or the animation clips on all the key points move on the screen respectively, and the pictures or the animation clips on a plurality of key points move at a preset movement speed according to a preset movement track.
Furthermore, the preset motion track is a ray from a starting point, the pointing angle of the ray is a random value, and the length of the ray is the product of the preset motion speed and the display time of the motion track in the movable window; or, the preset motion track is a part of a conical curve from the starting point, the eccentricity of the conical curve is a random value, and the product of the preset motion speed and the display time of the motion track in the movable window.
Meanwhile, when the pictures or the animation clips on the plurality of key points move at a preset movement speed according to a preset movement track, the transparency of the pictures or the animation clips on the plurality of key points is reduced at a constant speed along with the time, and the time for reducing the transparency is equal to the display time of the movement track in the movable window.
Meanwhile, when the animation clips on the plurality of key points are operated according to the preset motion trail and at the preset motion speed, the animation clips can be played circularly.
According to another embodiment of the present invention, there is provided a display device applied to an electronic whiteboard.
According to an embodiment of the present invention, there is provided a display device including: the receiving module is used for receiving stroke point information input by a user in a touch manner; the reading module judges whether the stroke point information corresponding to the touch instruction can be identified; the fitting module is used for fitting the stroke point information into a writing track consisting of continuous line segments; the granulation module is used for selecting a plurality of key points on each line segment of the writing track; the loading module is used for reading the specified particle picture or animation clip; the coordination module is used for loading the pictures or the animation clips to all key points of the writing track; and the motion module is used for enabling the pictures or the animation clips on all the key points to move on the screen respectively.
Wherein, fitting the stroke point information into a writing track consisting of continuous line segments comprises: and judging whether the stroke point information can be fitted into a line segment, if not, further judging whether the stroke can be covered by the combination of a plurality of line segments, if so, further judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and if not, connecting the end point of each line segment and the starting point of the adjacent line segment by using the line segment to form a writing track consisting of continuous line segments.
Judging whether the strokes can be fitted into a line segment, and judging whether stroke point information which is not judged currently can be linearly regressed to a straight line at intervals of a certain time delay; judging whether the stroke can be covered by the combination of a plurality of line segments, and judging whether the stroke point information which is not judged at present can linearly return to a straight line or not when judging that the stroke point information which is not judged at present can not linearly return to a straight line at intervals of certain time delay, wherein the square of the number of the straight lines is less than the point number of the stroke point information; and judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and judging whether the distance between the end point of each line segment on the plurality of straight lines and the starting point of the adjacent line segment is zero or not when the stroke point information which is not judged to be incapable of linearly regressing to one straight line is linearly regressed to the plurality of straight lines at present.
Each line segment end point is connected with the adjacent line segment starting point by a line segment, and each line segment end point on the plurality of straight lines is connected with the starting point by the end point with the distance which is not zero with the adjacent line segment starting point.
The method comprises the steps of selecting a plurality of key points on each line segment of a writing track, and selecting the plurality of key points at equal intervals on each line segment of the writing track according to preset particle density, wherein the number of the plurality of key points on the unit length of each line segment of the writing track is equal to the preset particle density.
Reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the writing track, wherein all the pictures or animation clips are read and randomly loaded to all the key points; or, reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the stroke, in order to read all the pictures or animation clips, and loading the pictures or animation clip to all the key points according to a preset certain sequence.
Furthermore, the pictures or the animation clips on all the key points move on the screen respectively, and the pictures or the animation clips on a plurality of key points move at a preset movement speed according to a preset movement track.
Furthermore, the preset motion track is a ray from a starting point, the pointing angle of the ray is a random value, and the length of the ray is the product of the preset motion speed and the display time of the motion track in the movable window; or, the preset motion track is a part of a conical curve from the starting point, the eccentricity of the conical curve is a random value, and the product of the preset motion speed and the display time of the motion track in the movable window.
Meanwhile, when the pictures or the animation clips on the plurality of key points move at a preset movement speed according to a preset movement track, the transparency of the pictures or the animation clips on the plurality of key points is reduced at a constant speed along with the time, and the time for reducing the transparency is equal to the display time of the movement track in the movable window.
When the animation clips at the plurality of key points are operated at a predetermined movement speed according to a predetermined movement trajectory, the animation clips are also played in a loop.
The technical scheme provided by the invention can condense light in the selected area, perform distinctive display according to the required parameters such as the display track length, the time and the density, and optimize the use effect of electronic equipment such as an electronic whiteboard.
Drawings
FIG. 1 is a flow chart of a display method according to an embodiment of the invention;
fig. 2 is a structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
According to one embodiment of the invention, a display method is provided and applied to electronic whiteboard software.
As shown in fig. 1, a display method provided according to an embodiment of the present invention includes:
step S101, receiving stroke point information input by a user in a touch manner;
step S103, judging whether stroke point information corresponding to the touch instruction can be identified;
step S105, fitting the stroke point information into a writing track consisting of continuous line segments;
step S107, selecting a plurality of key points on each line segment of the writing track;
step S109, reading the specified particle picture or animation clip;
step S111, loading the picture or the animation clip to all key points of the writing track;
in step S113, the pictures or animation clips on all the key points are moved on the screen, respectively.
Wherein, fitting the stroke point information into a writing track consisting of continuous line segments comprises: and judging whether the stroke point information can be fitted into a line segment, if not, further judging whether the stroke can be covered by the combination of a plurality of line segments, if so, further judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and if not, connecting the end point of each line segment and the starting point of the adjacent line segment by using the line segment to form a writing track consisting of continuous line segments.
Judging whether the strokes can be fitted into a line segment, and judging whether stroke point information which is not judged currently can be linearly regressed to a straight line at intervals of a certain time delay; judging whether the stroke can be covered by the combination of a plurality of line segments, and judging whether the stroke point information which is not judged at present can linearly return to a straight line or not when judging that the stroke point information which is not judged at present can not linearly return to a straight line at intervals of certain time delay, wherein the square of the number of the straight lines is less than the point number of the stroke point information; and judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and judging whether the distance between the end point of each line segment on the plurality of straight lines and the starting point of the adjacent line segment is zero or not when the stroke point information which is not judged to be incapable of linearly regressing to one straight line is linearly regressed to the plurality of straight lines at present.
Each line segment end point is connected with the adjacent line segment starting point by a line segment, and each line segment end point on the plurality of straight lines is connected with the starting point by the end point with the distance which is not zero with the adjacent line segment starting point.
In addition, a plurality of key points are selected on each line segment of the stroke, and are selected at equal intervals on each line segment of the stroke according to the preset particle density, wherein the number of the key points on the unit length of each line segment of the stroke is equal to the preset particle density.
Reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the stroke, wherein all the picture or animation clip is read and randomly loaded to all the key points; or, reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the stroke, in order to read all the pictures or animation clips, and loading the pictures or animation clip to all the key points according to a preset certain sequence.
Furthermore, the pictures or the animation clips on all the key points move on the screen respectively, and the pictures or the animation clips on a plurality of key points move at a preset movement speed according to a preset movement track.
Furthermore, the preset motion track is a ray from a starting point, the pointing angle of the ray is a random value, and the length of the ray is the product of the preset motion speed and the display time of the motion track in the movable window; or, the preset motion track is a part of a conical curve from the starting point, the eccentricity of the conical curve is a random value, and the product of the preset motion speed and the display time of the motion track in the movable window.
Meanwhile, when the pictures or the animation clips on the plurality of key points move at a preset movement speed according to a preset movement track, the transparency of the pictures or the animation clips on the plurality of key points is reduced at a constant speed along with the time, and the time for reducing the transparency is equal to the display time of the movement track in the movable window.
Meanwhile, when the animation clips on the plurality of key points are operated according to the preset motion trail and at the preset motion speed, the animation clips can be played circularly.
According to another embodiment of the present invention, there is provided a display device applied to an electronic whiteboard.
As shown in fig. 2, a display device provided according to an embodiment of the present invention includes:
the receiving module 21, the receiving module 21 is configured to receive stroke point information input by a user in a touch manner;
the reading module 22, the reading module 22 determines whether the stroke point information corresponding to the touch instruction is identifiable;
the fitting module 23, the fitting module 23 is configured to fit the stroke point information into a writing track formed by continuous line segments;
a granulation module 24, wherein the granulation module 24 is configured to select a plurality of key points on each line segment of the writing track;
the loading module 25, the loading module 25 is used for reading the specified particle picture or animation clip;
the coordination module 26, the coordination module 26 is used for loading the pictures or the animation clips on all key points of the writing track;
a motion module 27, the motion module 27 is used for moving the pictures or the animation clips on all the key points on the screen respectively.
Wherein, fitting the stroke point information into a writing track consisting of continuous line segments comprises: and judging whether the stroke point information can be fitted into a line segment, if not, further judging whether the stroke can be covered by the combination of a plurality of line segments, if so, further judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and if not, connecting the end point of each line segment and the starting point of the adjacent line segment by using the line segment to form a writing track consisting of continuous line segments.
Judging whether the strokes can be fitted into a line segment, and judging whether stroke point information which is not judged currently can be linearly regressed to a straight line at intervals of a certain time delay; judging whether the stroke can be covered by the combination of a plurality of line segments, and judging whether the stroke point information which is not judged at present can linearly return to a straight line or not when judging that the stroke point information which is not judged at present can not linearly return to a straight line at intervals of certain time delay, wherein the square of the number of the straight lines is less than the point number of the stroke point information; and judging whether the distance between the end point of each line segment and the starting point of the adjacent line segment is overlapped, and judging whether the distance between the end point of each line segment on the plurality of straight lines and the starting point of the adjacent line segment is zero or not when the stroke point information which is not judged to be incapable of linearly regressing to one straight line is linearly regressed to the plurality of straight lines at present.
Each line segment end point is connected with the adjacent line segment starting point by a line segment, and each line segment end point on the plurality of straight lines is connected with the starting point by the end point with the distance which is not zero with the adjacent line segment starting point.
The method comprises the steps of selecting a plurality of key points on each line segment of a writing track, and selecting the plurality of key points at equal intervals on each line segment of the writing track according to preset particle density, wherein the number of the plurality of key points on the unit length of each line segment of the writing track is equal to the preset particle density.
Reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the writing track, wherein all the pictures or animation clips are read and randomly loaded to all the key points; or, reading the specified particle picture or animation clip and loading the picture or animation clip to all key points of the stroke, in order to read all the pictures or animation clips, and loading the pictures or animation clip to all the key points according to a preset certain sequence.
Furthermore, the pictures or the animation clips on all the key points move on the screen respectively, and the pictures or the animation clips on a plurality of key points move at a preset movement speed according to a preset movement track.
Furthermore, the preset motion track is a ray from a starting point, the pointing angle of the ray is a random value, and the length of the ray is the product of the preset motion speed and the display time of the motion track in the movable window; or, the preset motion track is a part of a conical curve from the starting point, the eccentricity of the conical curve is a random value, and the product of the preset motion speed and the display time of the motion track in the movable window.
Meanwhile, when the pictures or the animation clips on the plurality of key points move at a preset movement speed according to a preset movement track, the transparency of the pictures or the animation clips on the plurality of key points is reduced at a constant speed along with the time, and the time for reducing the transparency is equal to the display time of the movement track in the movable window.
When the animation clips at the plurality of key points are operated at a predetermined movement speed according to a predetermined movement trajectory, the animation clips are also played in a loop.
The technical scheme provided by the invention can condense light in the selected area, perform distinctive display according to parameters such as required display track length, time and density, and optimize the use effect of electronic equipment such as an electronic whiteboard.
Those of ordinary skill in the art will understand that: the invention is not to be considered as limited to the specific embodiments thereof, but is to be understood as being modified in all respects, all changes and equivalents that come within the spirit and scope of the invention.
Claims (16)
1. A display method is applied to electronic whiteboard software, and is characterized by comprising the following steps:
receiving stroke point information input by a user in a touch manner;
judging whether stroke point information corresponding to the touch instruction can be identified;
judging whether the stroke point information can be fitted into a line segment, if not, further judging whether the stroke can be covered by the combination of a plurality of line segments, if so, further judging whether the distance between each line segment terminal and the starting point of the adjacent line segment is overlapped, and if not, connecting each line segment terminal and the starting point of the adjacent line segment by using the line segment to form a writing track consisting of continuous line segments;
selecting a plurality of key points on each line segment of the writing track;
reading a specified particle picture or animation clip;
loading the pictures or the animation clips on all key points of a writing track;
moving the pictures or the animation clips on all the key points on the screen respectively;
judging whether the strokes can be fitted into a line segment or not, and judging whether the stroke point information which is not judged currently can be linearly regressed to a straight line or not at regular time intervals;
judging whether the stroke can be covered by a combination of a plurality of line segments, namely judging whether the stroke point information which is not judged at present can not linearly return to a straight line or not when judging that the stroke point information which is not judged at present can not linearly return to the straight line at regular intervals, wherein the square of the number of the straight lines is less than the point number of the stroke point information;
and judging whether the distance between each line segment end point and the adjacent line segment start point is overlapped, wherein when judging that the stroke point information which is not judged to be linearly regressed onto one straight line is linearly regressed onto a plurality of straight lines, the distance between each line segment end point and the adjacent line segment start point on the plurality of straight lines is zero.
2. The display method according to claim 1, wherein the connecting of each line segment end point with the adjacent line segment start point is performed by a line segment, and each line segment end point on the plurality of straight lines is connected with the start point at a distance different from zero from the adjacent line segment start point.
3. The display method according to claim 1, wherein the selecting of the plurality of key points on each line segment of the writing trace is performed to select the plurality of key points at equal intervals on each line segment of the writing trace according to a predetermined particle density, and the number of the plurality of key points per unit length of each line segment of the writing trace is equal to the predetermined number of particle densities.
4. The display method according to claim 3, wherein the reading of the specified particle picture or animation clip and the loading of the picture or animation clip to all the key points of the writing trajectory is to read all the picture or animation clip and load them to all the key points randomly; or, the specified particle picture or animation clip is read and loaded to all key points of the stroke, and all pictures or animation clips are read and loaded to all key points according to a preset certain sequence.
5. The display method according to claim 4, wherein the pictures or animation clips at all the key points are moved on the screen respectively, and the pictures or animation clips at the plurality of key points are moved according to a preset motion track at a preset motion speed.
6. The display method according to claim 5, wherein the predetermined motion trajectory is a ray from a starting point, the pointing angle is a random value, and the length of the ray is the product of a predetermined motion speed and the display time of the motion trajectory in the active window; or, the preset motion track is a part of a conical curve from the starting point, the eccentricity of the conical curve is a random value, and the product of the preset motion speed and the display time of the motion track in the movable window.
7. The display method according to claim 5, wherein when the pictures or the animation clips at the plurality of key points move according to a preset motion trajectory at a preset motion speed, the transparency of the pictures or the animation clips at the plurality of key points is reduced at a constant speed along with time, and the time for reducing the transparency is equal to the display time of the motion trajectory in the active window.
8. The display method of claim 7, wherein the animation clips at the plurality of key points are played in a loop while the animation clips are moving at a predetermined moving speed according to a predetermined moving track.
9. A display device applied to an electronic whiteboard, comprising:
the receiving module is used for receiving stroke point information input by a user in a touch manner;
the reading module judges whether the stroke point information corresponding to the touch instruction can be identified;
the fitting module is used for judging whether the stroke point information can be fitted into a line segment, if not, further judging whether the stroke can be covered by the combination of a plurality of line segments, if so, further judging whether the distance between each line segment terminal and the adjacent line segment starting point is overlapped, and if not, connecting each line segment terminal and the adjacent line segment starting point by using the line segment to form a writing track consisting of continuous line segments;
a granulation module for selecting a plurality of key points on each line segment of the writing trajectory;
the loading module is used for reading a specified particle picture or animation clip;
a coordination module for loading the picture or animation clip onto all key points of a writing trajectory;
a motion module for moving the pictures or animation clips on all the key points on the screen respectively;
judging whether the strokes can be fitted into a line segment or not, and judging whether the stroke point information which is not judged currently can be linearly regressed to a straight line or not at regular time intervals;
judging whether the stroke can be covered by a combination of a plurality of line segments, namely judging whether the stroke point information which is not judged at present can not linearly return to a straight line or not when judging that the stroke point information which is not judged at present can not linearly return to the straight line at regular intervals, wherein the square of the number of the straight lines is less than the point number of the stroke point information;
and judging whether the distance between each line segment end point and the adjacent line segment start point is overlapped, wherein when judging that the stroke point information which is not judged to be linearly regressed onto one straight line is linearly regressed onto a plurality of straight lines, the distance between each line segment end point and the adjacent line segment start point on the plurality of straight lines is zero.
10. The display device according to claim 9, wherein the connection between each line segment end point and the start point of the adjacent line segment is made by a line segment, and the line segment end point on the plurality of straight lines is connected to the start point at a distance different from zero from the start point of the adjacent line segment.
11. The display device according to claim 9, wherein the plurality of key points are selected at equal intervals on each line segment of the writing trace according to a predetermined particle density, and the number of the plurality of key points per unit length of each line segment of the writing trace is equal to the predetermined number of the particle density.
12. The display device according to claim 11, wherein the reading of the specified particle picture or animation clip and the loading of the picture or animation clip to all the key points of the writing trajectory is to read all the picture or animation clip and load them to all the key points randomly; or, the specified particle picture or animation clip is read and loaded to all key points of the stroke, and all pictures or animation clips are read and loaded to all key points according to a preset certain sequence.
13. The display device according to claim 12, wherein the pictures or animation clips at all the key points are moved on the screen respectively, and the pictures or animation clips at the plurality of key points are moved according to a preset motion track at a preset motion speed.
14. The display device according to claim 13, wherein the predetermined motion trajectory is a ray from a starting point, the pointing angle is a random value, and the length of the ray is the product of a predetermined motion speed and the display time of the motion trajectory in the active window; or, the preset motion track is a part of a conical curve from the starting point, the eccentricity of the conical curve is a random value, and the product of the preset motion speed and the display time of the motion track in the movable window.
15. The display device according to claim 13, wherein when the pictures or animation clips at the plurality of key points move according to a predetermined motion trajectory at a predetermined motion speed, the transparency of the pictures or animation clips at the plurality of key points decreases at a constant rate with time, and the time of the transparency decrease is equal to the display time of the motion trajectory in the active window.
16. The display device as claimed in claim 15, wherein the animation clips at the plurality of key points are played in a loop while moving according to a predetermined motion trajectory and at a predetermined motion speed.
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| CN109271219B (en) * | 2018-07-25 | 2021-09-07 | 武汉斗鱼网络科技有限公司 | Counting method and device for countdown animation position |
| CN109032494B (en) * | 2018-08-15 | 2021-04-20 | 广州视源电子科技股份有限公司 | Intelligent interaction system, writing track display method and device, tablet and medium |
| CN111294659B (en) * | 2018-12-10 | 2021-02-09 | 北京乐柏信息咨询有限公司 | Method and device for controlling track playing speed, medium and processing equipment |
| CN112884863B (en) * | 2021-01-21 | 2022-07-19 | 广州朗国电子科技股份有限公司 | Drawing method based on electronic whiteboard for automatically correcting triangles and application thereof |
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| CN102081803B (en) * | 2011-01-20 | 2012-10-10 | 北京壹人壹本信息科技有限公司 | Method for implementing writing style of original handwriting |
| CN103400109A (en) * | 2013-07-10 | 2013-11-20 | 西安交通大学 | Free-hand sketch offline identification and reshaping method |
| CN103440101A (en) * | 2013-08-16 | 2013-12-11 | 深圳市经纬科技有限公司 | Handwritten original handwriting data processing method and system and mobile phone |
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