CN105573702A - Remote headnote moving and scaling synchronization method and system - Google Patents
Remote headnote moving and scaling synchronization method and system Download PDFInfo
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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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- 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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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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
- G06F3/0485—Scrolling or panning
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- 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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- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/048—Indexing scheme relating to G06F3/048
- G06F2203/04808—Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
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Abstract
The invention relates to a remote headnote moving and scaling synchronization method and a remote headnote moving and scaling synchronization system. The remote headnote moving and scaling synchronization method comprises the following steps: acquiring a coordinate set of a current screen image drawn and stored on a drawing canvas; when monitoring a screen touch event, acquiring a translational displacement and/or a scaling ratio of the screen touch event; according to the translational displacement and/or the scaling ratio, translating and/or scaling the coordinate set to obtain a translated and/ or scaled transformation matrix; according to the transformation matrix, transforming an original coordinate system of the current screen image to obtain a transformed coordinate system; according to the transformed coordinate system, redrawing the current screen image to obtain a redrawn screen image; according to the transformed coordinate system, calculating to obtain coordinate information and a scaling multiple of the redrawn screen image; sending the coordinate information and the scaling multiple to an interactive smart tablet; and executing corresponding operations by the interactive smart tablet according to the coordinate information and the scaling multiple.
Description
Technical field
The present invention relates to interactive intelligent tablet computer technical field, particularly relate to that a kind of long-range annotations and comments move, the synchronous method of convergent-divergent and system.
Background technology
Interactive intelligent tablet computer (Windows equipment), possess the functions such as annotations and comments, drawing, multimedia recreation, having incorporated the multinomial technology such as man-machine interaction, flat pannel display, multimedia signal processing and Internet Transmission, is the preferred solution of office in the information age, teaching, picture and text interactive demonstration.Interactive intelligent tablet computer is used in classroom or conference scenario, when carrying out annotations and comments explanation to the content on screen, due to display picture or word too small, the student sat in the back row or staff often do not see the content on Chu's screen, now just need to move or convergent-divergent the content on screen.
In implementation procedure, inventor finds that in conventional art, at least there are the following problems: conventional art need user realize in interactive intelligent tablet computer to screen annotations and comments movement, zoom operations, user can not depart from interactive intelligent tablet computer and audience interaction.
Summary of the invention
Based on this, be necessary the problem of the movement for Long-distance Control interactive intelligent tablet computer simultaneous display annotations and comments, convergent-divergent, provide that a kind of long-range annotations and comments move, the synchronous method of convergent-divergent and system.
To achieve these goals, the embodiment of technical solution of the present invention is:
On the one hand, provide that a kind of long-range annotations and comments move, the synchronous method of convergent-divergent, comprise the following steps:
Acquisition is drawn and is stored in the coordinate set of the current screen image on drawing painting canvas; Current screen image comprises the annotations and comments person's handwriting obtained according to described screen annotations and comments event;
When listening to screen touch event, obtain translational displacement and/or the scaling of screen touch event;
According to translational displacement and/or scaling, translation and/or convergent-divergent are carried out to coordinate set, obtain the transformation matrix after translation and/or convergent-divergent;
Change according to the original coordinate system of transformation matrix to current screen image, obtain the coordinate system after conversion; And according to the coordinate system after conversion, current screen image is repainted, obtain the screen picture repainted;
According to the coordinate system after conversion, calculate coordinate information and the convergent-divergent multiple of the screen picture repainted;
Coordinate information and convergent-divergent multiple are sent to interactive intelligent tablet computer; Corresponding operation is performed according to coordinate information and convergent-divergent multiple by interactive intelligent tablet computer.
On the other hand, provide that a kind of long-range annotations and comments move, the synchro system of convergent-divergent, comprising:
Monitor screen unit, draw for obtaining and be stored in the coordinate set of the current screen image on drawing painting canvas, current screen image comprises the annotations and comments person's handwriting according to the acquisition of screen annotations and comments event; And when listening to screen touch event, obtain translational displacement and/or the scaling of screen touch event;
Processing unit, for according to translational displacement and/or scaling, carries out translation and/or convergent-divergent to coordinate set, obtains the transformation matrix after translation and/or convergent-divergent; Change according to the original coordinate system of transformation matrix to current screen image, obtain the coordinate system after conversion; And according to the coordinate system after conversion, calculate coordinate information and the convergent-divergent multiple of the screen picture repainted;
Drawing unit, for repainting current screen image according to the coordinate system after conversion, obtains the screen picture repainted;
Transmitting element, sends to interactive intelligent tablet computer by coordinate information and convergent-divergent multiple, performs corresponding operation by interactive intelligent tablet computer according to coordinate information and convergent-divergent multiple.
Technique scheme has following beneficial effect:
Long-range annotations and comments of the present invention move, the synchronous method of convergent-divergent and system, because the movement adopting mobile device remote manipulation interactive intelligent tablet computer to carry out annotating and commenting on and convergent-divergent, mobile device controls movement, the convergent-divergent of local annotations and comments by gesture operation, ensures that interactive intelligent tablet computer is consistent with the operation of the annotations and comments that mobile device shows simultaneously.Thus ensure that user can depart from the associative operation (as synchronous convergent-divergent or translation annotations and comments) of interactive intelligent tablet computer realization to screen annotations and comments, and and audience interaction.
Accompanying drawing explanation
By the more specifically explanation of the preferred embodiments of the present invention shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will become more clear.Reference numeral identical in whole accompanying drawing indicates identical part, and does not deliberately draw accompanying drawing by physical size equal proportion convergent-divergent, focuses on purport of the present invention is shown.
Fig. 1 is that the long-range annotations and comments of the present invention move, an application scenarios schematic diagram of the synchronous method of convergent-divergent and system;
Fig. 2 is that the long-range annotations and comments of the present invention move, the schematic flow sheet of the synchronous method embodiment 1 of convergent-divergent;
Fig. 3 is that the long-range annotations and comments of the present invention move, the schematic flow sheet of the synchronous method embodiment 2 of convergent-divergent;
Fig. 4 is that the long-range annotations and comments of the present invention move, the structural representation of the synchro system embodiment 1 of convergent-divergent.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.First-selected embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, the object of these embodiments is provided to be make to disclosure of the present invention more thoroughly comprehensively.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
The long-range annotations and comments of the present invention move, the synchronous method of convergent-divergent and an application scenarios of system:
Fig. 1 is that the long-range annotations and comments of the present invention move, an application scenarios schematic diagram of the synchronous method of convergent-divergent and system; As shown in Figure 1, interactive intelligent tablet computer is used in classroom or conference scenario, when carrying out annotations and comments explanation to the content on screen, due to display picture or word too small, the student sat in the back row or staff often do not see the content on Chu's screen, now just need to move the content on screen or amplify.And moved by the long-range annotations and comments of the present invention, the synchronous method of convergent-divergent and system can remote control interactive intelligent tablet computer carry out annotating and commenting on and convergent-divergent, ensure that mobile device is consistent with annotations and comments content interactive intelligent tablet computer showing mobile or convergent-divergent, mobile device controls the Scalable of local annotations and comments by gesture operation, can ensure in the process of convergent-divergent annotations and comments interactive intelligent tablet computer and the region that mobile device shows with annotate and comment on consistent.Thus ensure that user can depart from the associative operation (such as synchronous convergent-divergent or translation annotations and comments) of interactive intelligent tablet computer realization to screen annotations and comments, and and audience interaction.
Mobile device controls the Scalable of local annotations and comments by gesture operation, can ensure that interactive intelligent tablet computer is consistent with the thickness of the region that mobile device shows and annotations and comments in the process of convergent-divergent annotations and comments.And first can amplify screen-picture by mobile device, then picture is is after amplification annotated and commented on, can continue after having annotated and commented on to zoom in or out screen, the person's handwriting of annotations and comments also can and then zoom in or out.
The long-range annotations and comments of the present invention move, the synchronous method embodiment 1 of convergent-divergent:
In order to realize the object of mobile device remote manipulation interactive intelligent tablet computer simultaneous display, the invention provides that long-range annotations and comments move, the synchronous method embodiment 1 of convergent-divergent; Fig. 2 is that the long-range annotations and comments of the present invention move, the schematic flow sheet of the synchronous method embodiment 1 of convergent-divergent, as shown in Figure 2, comprises the following steps:
Step S210: acquisition is drawn and is stored in the coordinate set of the current screen image on drawing painting canvas; Current screen image comprises the annotations and comments person's handwriting obtained according to screen annotations and comments event;
Step S220: when listening to screen touch event, obtains translational displacement and/or the scaling of screen touch event;
Step S230: according to translational displacement and/or scaling, carries out translation and/or convergent-divergent to coordinate set, obtains the transformation matrix after translation and/or convergent-divergent;
Step S240: change according to the original coordinate system of transformation matrix to current screen image, obtains the coordinate system after conversion;
Step S250: repaint current screen image according to the coordinate system after conversion, obtains the screen picture repainted;
Step S260: according to the coordinate system after conversion, calculate coordinate information and the convergent-divergent multiple of the screen picture repainted;
Step S270: coordinate information and convergent-divergent multiple are sent to interactive intelligent tablet computer; Corresponding operation is performed according to coordinate information and convergent-divergent multiple by interactive intelligent tablet computer; In a specific embodiment, interactive intelligent tablet computer performs the convergent-divergent comprising annotations and comments person's handwriting and the translation of corresponding operation according to coordinate information and convergent-divergent multiple.
And in a concrete example, the annotations and comments person's handwriting obtained according to screen annotations and comments event in step S210 can be realized by following steps:
Create drawing painting canvas; For the operating system of mobile terminal for android system, this painting canvas can be Android drawing painting canvas, this Android drawing painting canvas is created by Canvas, correspondingly when the operating system of this mobile terminal is IOS (the mobile operation of Apple's exploitation) system, this drawing painting canvas can also be IOS drawing board or drawing drawing painting canvas, when the operating system of interactive intelligence terminal is the operating system of other types, the drawing painting canvas that this painting canvas also can create for the control in other types operating system with drawing painting canvas function;
Draw on above-mentioned drawing painting canvas according to the movement of screen annotations and comments event current annotation touch point and store annotations and comments person's handwriting.And the object of drawing annotations and comments person's handwriting on drawing painting canvas makes mobile device consistent with the picture that interactive intelligent tablet computer shows.
In a concrete example, the step of translational displacement and/or scaling that step S220 obtains screen touch event specifically can comprise the following steps:
Monitor screen touch event, obtain touch point number;
When the number of touch point is one, using the displacement of touch point movement as translational displacement;
When the number of touch point is more than one, obtain the central point of each touch point; According to the distance of each touch point and this central point, determine scaling.
In a specific embodiment, step S240 changes according to the original coordinate system of transformation matrix to current screen image, and the step obtaining the coordinate system after conversion specifically can comprise:
Obtain the initial coordinate of touch point in screen touch event;
Obtain touch point move after terminal point coordinate;
According to initial coordinate and described terminal point coordinate, determine transformation matrix;
According to transformation matrix, current screen image is carried out to the conversion of convergent-divergent and/or translation, obtain the coordinate system after conversion.
In a concrete example, step S260 is according to the coordinate system after conversion, and the step of the coordinate information and convergent-divergent multiple that calculate the screen picture repainted specifically can comprise:
Obtain corner coordinate and the center point coordinate of original coordinate system;
Obtain corner coordinate and the center point coordinate of the coordinate system after conversion;
According to corner coordinate and the center point coordinate of the coordinate system after the corner coordinate of original coordinate system and center point coordinate and conversion, determine the coordinate of the point in the screen picture repainted, and obtain convergent-divergent multiple.
In a specific embodiment, for the mobile device of android system, the long-range annotations and comments of the present invention move, the embodiment 1 of the synchronous method of convergent-divergent can comprise the following steps:
(1) mobile device (mobile terminal) draws annotations and comments, makes mobile terminal consistent with the picture that interactive intelligent tablet computer shows.
1) create Android drawing painting canvas (Canvas), just can draw any image or person's handwriting on drawing painting canvas by the paintbrush set (Paint class); The operation such as annotations and comments all in the embodiment of the present invention and synchronous convergent-divergent is all carried out on drawing painting canvas.
2) when mobile device (mobile terminal) listens to Android screen annotations and comments event, annotations and comments person's handwriting is drawn in movement according to finger, namely in graphing (onDraw) method of control, call curve plotting method (canvasdrawPath) curve plotting of Android drawing painting canvas, and record the person's handwriting of current drafting, and obtain the coordinate set of this person's handwriting; And due to mobile terminal can constantly by Image Coding that painting canvas is drawn to interactive intelligent tablet computer; annotations and comments person's handwriting, by showing this screen picture after decoding, is therefore plotted in and drawing painting canvas can ensures the consistent of annotations and comments that mobile terminal shows and interactive intelligent tablet computer by interactive intelligent tablet computer.
Wherein screen annotations and comments event is the operation being different from screen touch event, specifically, can arrange the annotations and comments tool bar or comment button that trigger Postil Function in mobile terminal, when user triggers Postil Function, namely mobile terminal enters monitors Android screen annotations and comments state-event; Screen touch event then without the need to arranging tool bar or the button of triggers touch function on screen, and user can trigger screen touch event by finger touch screen; In addition also can be different or dynamics is different according to time of staff touch screen, pre-set different gesture operations to trigger screen Postil Function or screen touch function.
(2) synchronizing moving and/or convergent-divergent;
1) android screen touch event (activityonTouchEvent) is monitored in mobile terminal, when listening to the two finger of user and pressing, calculate two finger central point and two multiple referring to zoom in/out, the coordinate set of identifying the handwriting carries out zoom in/out (matrixpostScale); When listening to user's finger and pressing as singly referring to, according to the displacement of the mobile computing finger movement of finger, the coordinate set of identifying the handwriting carries out translation (matrixpostTranslate) operation.
2) person's handwriting of the matrix after using conversion to record carries out the conversion (matrixmapPoints or mapRect) of coordinate system, and repaints according to the current person's handwriting of the coordinate system after conversion to record.
3) according to the coordinate system after conversion, mobile device calculates coordinate information and the convergent-divergent multiple of current screen, and this coordinate information and convergent-divergent multiple are sent to interactive intelligent tablet computer.
In a specific embodiment, namely multiple and the displacement of coordinate system convergent-divergent compared with former coordinate system of the person's handwriting after conversion is calculated, according to convergent-divergent multiple and displacement, be the coordinate in current coordinate system by the coordinate conversion of finger touch, and this coordinate is sent to interactive intelligent tablet computer, making it can by the movement of this coordinate simultaneous display annotations and comments, convergent-divergent.
Wherein, the coordinate system of the person's handwriting after conversion refers to that the region shown on screen after picture amplifies, former coordinate system refer to the region that screen annotations and comments event initial picture shows on screen.Such as: picture display all over the screen under original state, apex coordinate is (0,0, width, height), take left upper apex as initial point, by screen magnifying scale doubly, so new point coordinate newX=x*scale, new picture area apex coordinate is (0,0, width*scale, height*scale).And synchronously annotate and comment on movement, convergent-divergent step specifically comprise following:
1. catch the coordinate (x, y) of screen annotations and comments event;
2. the summit of amplifying rear region rectangle frame is (left, top, right, bottom);
3. and the summit of screen annotations and comments event prime area rectangle frame is (0,0, width, height);
4. multiple scale=(the right-left)/width amplified;
5. be the coordinate of relative prime area by the coordinate conversion of current magnification region:
newX＝(x-left)*scale
newY＝(y-top)*scale；
(3) interactive intelligent tablet computer process annotations and comments translation and/or convergent-divergent event
After interactive intelligent tablet computer receives annotations and comments translation and/or convergent-divergent instruction, perform corresponding operating.
That is, after interactive intelligent tablet computer receives instruction, annotations and comments convergent-divergent and translation can be done according to information such as the coordinates of annotations and comments.
Long-range annotations and comments of the present invention move, the embodiment of the synchronous method of convergent-divergent 1 is because the movement adopting mobile device remote manipulation interactive intelligent tablet computer to carry out annotating and commenting on and convergent-divergent, mobile device controls movement, the convergent-divergent of local annotations and comments by gesture operation, ensures that interactive intelligent tablet computer is consistent with the operation of the annotations and comments that mobile device shows simultaneously.Thus ensure that user can depart from the associative operation (as synchronous convergent-divergent or translation annotations and comments) of interactive intelligent tablet computer realization to screen annotations and comments, and and audience interaction.
The long-range annotations and comments of the present invention move, the synchronous method embodiment 2 of convergent-divergent:
In order to realize mobile device remote manipulation interactive intelligent tablet computer the object of simultaneous display, the invention provides that long-range annotations and comments move, the synchronous method embodiment 2 of convergent-divergent; This embodiment is with the key distinction of above-described embodiment 1: the present embodiment can by mobile terminal to the snapshot picture of the current screen picture of Intelligent flat and annotate and comment on the operation that person's handwriting carries out synchronous convergent-divergent and/or translation; Fig. 3 is that the long-range annotations and comments of the present invention move, the schematic flow sheet of the synchronous method embodiment 2 of convergent-divergent, as shown in Figure 3, for the mobile device of android system, comprises the following steps:
Step S310: mobile device (mobile terminal) screenshotss and rendering context, makes mobile terminal consistent with the picture that Intelligent flat shows.
1) mobile device intercepts the screen picture that interactive intelligent tablet computer sends in real time;
2) create Android drawing painting canvas (Canvas), just can draw any image or person's handwriting on drawing painting canvas by the paintbrush set (Paint class); The operation such as annotations and comments all in the embodiment of the present invention and synchronous convergent-divergent is all carried out on Android drawing painting canvas.
3) by the Image Rendering after screenshotss on drawing painting canvas, in graphing (onDraw) method of control, call drawing image method (canvas.drawBitmap) drawing image of Android drawing painting canvas, and record the image of current drafting.And sectional drawing to be plotted on drawing painting canvas figure as a setting and can to ensure the display of mobile terminal and the consistent of interactive intelligent tablet computer.
Step S320: obtain annotations and comments person's handwriting coordinate set;
Mobile terminal is in Android screen annotations and comments event, annotations and comments person's handwriting is drawn in movement according to finger, namely in graphing (onDraw) method of control, call curve plotting method (canvasdrawPath) curve plotting of Android drawing painting canvas, and record the person's handwriting of current drafting.Wherein screen annotations and comments event is the operation being different from screen touch event, specifically, can arrange the annotations and comments tool bar or comment button that trigger Postil Function in mobile terminal, when user triggers Postil Function, namely mobile terminal enters monitors Android screen annotations and comments state-event; Screen touch event then without the need to arranging tool bar or the button of triggers touch function on screen, and user can trigger screen touch event by finger touch screen; In addition also can be different or dynamics is different according to time of staff touch screen, pre-set different gesture operations to trigger screen Postil Function or screen touch function.
Step S330: monitor screen touch event;
Step S340: the movement of mobile device screen, convergent-divergent;
Android screen touch event (activityonTouchEvent) is monitored in mobile terminal, when listening to the two finger of user and pressing, calculate two finger central point and two multiple referring to zoom in/out, zoom in/out (matrixpostScale) is carried out to coordinate set; When listening to user's finger and pressing as singly referring to, according to the displacement of the mobile computing finger movement of finger, translation (matrixpostTranslate) operation is carried out to matrix.
Step S350: coordinate conversion with redraw;
Use the matrix after conversion to carry out the conversion (matrixmapPoints or mapRect) of coordinate system to the person's handwriting of record and Background, then according to the coordinate system after conversion, annotations and comments person's handwriting and Background are redrawn.
Specifically, even whole screen is regarded a rectangle, so the coordinate of four points of rectangle can be expressed as (0, 0, width, height), Android drawing painting canvas carries a Matrix class, Matrix is the matrix of a 3x3, translation can be carried out to each point, the conversion such as convergent-divergent, matrixmapPoints or mapRect is actually two methods of Matrx, initial matrix calls after postScale or postTranslate carried carry out matrixing to self, call matrxi.mapPoints or matrix.mapRect can to point or rectangle reduces or the conversion of translation.
Step S360: according to the coordinate system after conversion, mobile device calculates the coordinate after current screen center point coordinate and enlargement factor and the conversion of annotations and comments person's handwriting, and send magnifier instruction according to this center point coordinate and enlargement factor, and send annotations and comments instruction to interactive intelligent tablet computer according to the coordinate after the conversion of this annotations and comments person's handwriting.
Specifically, such as: the coordinate of former coordinate system is (0,0, width, height), and center point coordinate is (width/2, height/2);
If constant the putting of upper left position is twice, after so amplifying, the apex coordinate of visibility region is (0,0, width/2, height/2);
Now the coordinate of visibility region central point is (width/4, height/4);
Enlargement factor scale is former width/new width:
Step S370: the movement of interactive intelligent tablet computer, convergent-divergent;
That is, after interactive intelligent tablet computer receives command adapted thereto, mobile, convergent-divergent process can be done according to the center point coordinate received and enlargement factor to whole screen-picture and annotations and comments.
Step S380: judge whether mobile device exits mobile, zoom operations; If do not exit, enter step S320, continue to monitor screen touch (or annotations and comments) event and carry out associative operation.
Long-range annotations and comments of the present invention move, the synchronous method embodiment of convergent-divergent 2 carries out screen content because of employing mobile device remote manipulation interactive intelligent tablet computer movement and convergent-divergent; Mobile device controls movement, the convergent-divergent of local annotations and comments by gesture operation, ensures that interactive intelligent tablet computer is consistent with the content that mobile device shows simultaneously.Thus ensure that user can depart from the associative operation (as synchronous convergent-divergent or translation annotations and comments) of interactive intelligent tablet computer realization to screen annotations and comments, and and audience interaction.
Based on moving with above-mentioned long-range annotations and comments, thought that the synchronous method of convergent-divergent is identical, in order to realize mobile device remote manipulation interactive intelligent tablet computer and the object of simultaneous display, the embodiment of the present invention additionally provides that long-range annotations and comments move, the synchro system embodiment of convergent-divergent 1, Fig. 4 is that the long-range annotations and comments of the present invention move, the structural representation of the synchro system embodiment 1 of convergent-divergent; As shown in Figure 4, long-range annotations and comments move, the synchro system embodiment 1 of convergent-divergent comprises:
Monitor screen unit 10, draw for obtaining and be stored in the coordinate set of the current screen image on drawing painting canvas, current screen image comprises the annotations and comments person's handwriting according to the acquisition of screen annotations and comments event; And when listening to screen touch event, obtain translational displacement and/or the scaling of screen touch event;
Processing unit 20, for according to translational displacement and/or scaling, carries out translation and/or convergent-divergent to coordinate set, obtains the transformation matrix after translation and/or convergent-divergent; Change according to the original coordinate system of transformation matrix to current screen image, obtain the coordinate system after conversion; And according to the coordinate system after conversion, calculate coordinate information and the convergent-divergent multiple of the screen picture repainted;
Drawing unit 30, for repainting current screen image according to the coordinate system after conversion, obtains the screen picture repainted;
Transmitting element 40, sends to interactive intelligent tablet computer by coordinate information and convergent-divergent multiple, performs corresponding operation by interactive intelligent tablet computer according to coordinate information and convergent-divergent multiple.In a specific embodiment, interactive intelligent tablet computer performs according to coordinate information and convergent-divergent multiple and annotates and comments on the convergent-divergent of person's handwriting and the zooming and panning of translation and screen picture comprising of corresponding operation.
In a specific embodiment, long-range annotations and comments move, the synchro system embodiment 1 of convergent-divergent also comprises:
Receiving element 50, for receiving the screen picture that interactive intelligent tablet computer sends in real time;
Screen printing unit 60, for intercepting the screen picture sent in real time, obtains snapshot picture; Current screen image also comprises snapshot picture;
Drawing unit 30 is also for creating drawing painting canvas; And annotate and comment on event by screen, draw on drawing painting canvas according to the movement of current annotation touch point and store annotations and comments person's handwriting; And for above-mentioned screenshotss Image Rendering is stored in drawing painting canvas.
In a specific embodiment, monitor screen unit 10 and comprise the first monitoring module 110, first data acquisition module 130, second monitoring module 120 and the second data acquisition module 140,
First monitors module 110, for monitoring screen annotations and comments event;
First data acquisition module 130, for when the first monitoring module 110 listens to screen annotations and comments event, acquisition is drawn and is stored in the coordinate set of the current screen image on drawing painting canvas;
Second monitors module 120, for monitoring screen touch event, and obtains touch point number;
Second data acquisition module 140, for when the touch point number that second monitors module 120 acquisition is one, using the displacement of described touch point movement as described translational displacement; When the number that second monitors the touch point that module 120 obtains is more than one, obtain the central point of each touch point; And according to the distance of each touch point and central point, determine scaling.
In a specific embodiment, processing unit 20 comprises matrixing module 210, modular converter 220 and computing module 230, first coordinate obtaining module 240 and the second coordinate obtaining module 250,
Matrixing module 210, for according to translational displacement and/or scaling, carries out translation and/or convergent-divergent to coordinate set, obtains the transformation matrix after translation and/or convergent-divergent;
Modular converter 220, for changing according to the original coordinate system of transformation matrix to described current screen image, obtains the coordinate system after conversion;
Computing module 230, for according to the coordinate system after conversion, calculates coordinate information and the convergent-divergent multiple of the screen picture repainted.
The first coordinate obtaining module 240 be connected with modular converter 220, for obtaining the initial coordinate of touch point in screen touch event; And touch point move after terminal point coordinate;
The second coordinate obtaining module 250 be connected with computing module 230, for obtaining corner coordinate and the center point coordinate of original coordinate system; And the corner coordinate of coordinate system after conversion and center point coordinate.
In a specific embodiment, for the mobile device of android system, the long-range annotations and comments of the present invention move, the specific works process of the embodiment 1 of the synchro system of convergent-divergent can be as described below:
Receiving element 50 receives the current screen picture just shown that interactive intelligent tablet computer sends in real time; Screen printing unit 60 intercepts this current screen image;
Drawing unit 30 creates Android drawing painting canvas (Canvas), just can draw any image or person's handwriting on drawing painting canvas by the paintbrush set (Paint class); The operation such as annotations and comments all in this embodiment of the invention and synchronous convergent-divergent is all carried out on Android drawing painting canvas.
Drawing unit 30 by the Image Rendering after screenshotss on drawing painting canvas, in graphing (onDraw) method, call drawing image method (canvas.drawBitmap) drawing image of Android drawing painting canvas, and record the image of current drafting.And sectional drawing to be plotted on drawing painting canvas figure as a setting and can to ensure the display of mobile terminal and the consistent of interactive intelligent tablet computer.
When the first monitoring module 110 monitored in screen unit 10 listens to Android screen annotations and comments event, drawing unit 30 draws annotations and comments person's handwriting according to the movement of finger, namely in graphing (onDraw) method of control, call curve plotting method (canvasdrawPath) curve plotting of Android drawing painting canvas, and recording the person's handwriting of current drafting, the first data acquisition module 130 obtains the coordinate set of person's handwriting.Wherein screen annotations and comments event is the operation being different from screen touch event, specifically, mobile terminal screen can arrange the annotations and comments tool bar or comment button that trigger Postil Function, and when user triggers Postil Function, namely mobile terminal enters monitors Android screen annotations and comments state-event; Screen touch event then without the need to arranging tool bar or the button of triggers touch function on screen, and user can trigger screen touch event by finger touch screen; In addition also can be different or dynamics is different according to time of staff touch screen, pre-set different gesture operations to trigger screen Postil Function or screen touch function.
Second monitors module 120 monitors android screen touch event (activityonTouchEvent) event, when listening to the two finger of user and pressing, second data acquisition module 140 calculates two multiple referring to central point and two finger zoom in/out, determine scaling, matrixing module 210 carries out zoom in/out (matrixpostScale) according to scaling to coordinate set; When listening to user's finger and pressing as singly referring to, second data acquisition module 140 is according to the displacement of the mobile computing finger movement of finger as translational displacement, and matrixing module 210 carries out translation (matrixpostTranslate) operation according to this translational displacement to coordinate set.
Matrix after modular converter 220 uses conversion carries out the conversion (matrixmapPoints or mapRect) of coordinate system to the person's handwriting of record and Background, then by drawing unit 30, the person's handwriting after conversion and Background are redrawn, according to after the coordinate transform that the gesture operation of mobile terminal calculates, the coordinate system after according to conversion is needed to repaint picture and person's handwriting.First data acquisition module 130 is for obtaining the coordinate set of the former coordinate system of person's handwriting and Background.
Computing module 230 calculates the multiple and displacement that the coordinate system of current drafting and former coordinate system amplify, be the coordinate in current coordinate system by the coordinate conversion of finger touch, be sent to interactive intelligent tablet computer by transmitting element 40, making it can synchronizing moving or convergent-divergent annotations and comments.
Wherein for annotations and comments person's handwriting, current drafting coordinate system refers to the region shown on screen after picture amplifies, and former coordinate system refers to the region that initial picture shows on screen.Such as: picture display all over the screen under original state, apex coordinate is (0,0, width, height), take left upper apex as initial point, by screen magnifying scale doubly, so new point coordinate newX=x*scale, new picture area apex coordinate is (0,0, width*scale, height*scale).And the process of synchronizing moving, convergent-divergent annotations and comments is specific as follows:
First coordinate obtaining module 240 catches the coordinate (x, y) of screen touch event; And the summit of current magnification region rectangle frame is (left, top, right, bottom); The summit of prime area rectangle frame is (0,0, width, height); Multiple scale=(the right-left)/width amplified; The coordinate conversion of current magnification region is the coordinate of relative prime area by modular converter 220:
newX＝(x-left)*scale
newY＝(y-top)*scale；
For Background, if by whole screen as a rectangle, so the coordinate of four points of rectangle can be expressed as (0, 0, width, height), Android drawing painting canvas carries a Matrix class, Matrix is the matrix of a 3x3, translation can be carried out to each point, the conversion such as convergent-divergent, matrixmapPoints or mapRect is actually two methods of Matrx, initial matrix calls after postScale or postTranslate carried carry out matrixing to self, call matrxi.mapPoints or matrix.mapRect can to point or rectangle reduces or the conversion of translation.
According to the coordinate system after conversion, computing module 230 calculates coordinate information and the convergent-divergent multiple of current screen, and transmitting element 40 sends annotations and comments instruction or magnifier instruction to interactive intelligent tablet computer according to coordinate information and convergent-divergent multiple.
In a specific embodiment, the second coordinate obtaining module 250 obtains the coordinate (0,0, width, height) of former coordinate system, center point coordinate (width/2, height/2);
If constant the putting of upper left position is twice, after so amplifying, the apex coordinate of visibility region is (0,0, width/2, height/2);
Now the coordinate of the visibility region central point of the second coordinate obtaining module 250 acquisition is (width/4, height/4);
The enlargement factor scale that computing module 240 calculates is former width/new width:
After interactive intelligent tablet computer receives annotations and comments translation and/or convergent-divergent instruction, perform corresponding operating.
That is, after interactive intelligent tablet computer receives instruction, annotations and comments convergent-divergent and translation can be done according to information such as the coordinates of annotations and comments.
Long-range annotations and comments of the present invention move, the synchro system embodiment of convergent-divergent 1 is because the movement adopting mobile device remote manipulation interactive intelligent tablet computer to carry out annotating and commenting on and convergent-divergent, mobile device controls movement, the convergent-divergent of local annotations and comments by gesture operation, ensures that interactive intelligent tablet computer is consistent with the operation of the annotations and comments that mobile device shows simultaneously.Thus ensure that user can depart from the associative operation (as synchronous convergent-divergent or translation annotations and comments) of interactive intelligent tablet computer realization to screen annotations and comments, and and audience interaction.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. long-range annotations and comments move, the synchronous method of convergent-divergent, it is characterized in that, comprise the following steps:
Acquisition is drawn and is stored in the coordinate set of the current screen image on drawing painting canvas; Described current screen image comprises the annotations and comments person's handwriting obtained according to screen annotations and comments event;
When listening to screen touch event, obtain translational displacement and/or the scaling of described screen touch event;
According to described translational displacement and/or described scaling, translation and/or convergent-divergent are carried out to described coordinate set, obtain the transformation matrix after translation and/or convergent-divergent;
Change according to the original coordinate system of described transformation matrix to described current screen image, obtain the coordinate system after conversion; And according to the coordinate system after described conversion, described current screen image is repainted, obtain the screen picture repainted;
According to the coordinate system after described conversion, the coordinate information of the screen picture repainted described in calculating and convergent-divergent multiple;
Described coordinate information and convergent-divergent multiple are sent to interactive intelligent tablet computer; Corresponding operation is performed according to described coordinate information and convergent-divergent multiple by described interactive intelligent tablet computer.
2. long-range annotations and comments according to claim 1 move, the synchronous method of convergent-divergent, it is characterized in that, before the step monitoring screen touch event, also comprise step:
Create described drawing painting canvas.
3. long-range annotations and comments according to claim 2 move, the synchronous method of convergent-divergent, it is characterized in that, described current screen image also comprises snapshot picture; Described snapshot similarly is obtained by following steps:
Intercept the screen picture that described interactive intelligent tablet computer sends in real time, obtain described snapshot picture.
4. the long-range annotations and comments according to claims 1 to 3 any one move, the synchronous method of convergent-divergent, it is characterized in that, the described translational displacement of screen touch event of described acquisition and/or the step of scaling comprise:
According to screen touch event, obtain touch point number;
When the number of described touch point is one, using the displacement of described touch point movement as described translational displacement;
When the number of described touch point is more than one, obtain the central point of each described touch point; According to the distance of each described touch point and described central point, determine described scaling.
5. the long-range annotations and comments according to claims 1 to 3 any one move, the synchronous method of convergent-divergent, it is characterized in that, describedly change according to the original coordinate system of described transformation matrix to described current screen image, the step obtaining the coordinate system after conversion comprises:
Obtain the initial coordinate of touch point in described screen touch event;
Obtain described touch point move after terminal point coordinate;
According to described initial coordinate and described terminal point coordinate, determine described transformation matrix;
According to described transformation matrix, described current screen is carried out to the conversion of convergent-divergent and/or translation, obtain the coordinate system after conversion.
6. the long-range annotations and comments according to claims 1 to 3 any one move, the synchronous method of convergent-divergent, it is characterized in that, described according to the coordinate system after described conversion, the coordinate information of the screen picture repainted described in calculating and the step of convergent-divergent multiple comprise:
Obtain corner coordinate and the center point coordinate of described original coordinate system;
Obtain corner coordinate and the center point coordinate of the coordinate system after described conversion;
According to corner coordinate and the center point coordinate of the coordinate system after the corner coordinate of described original coordinate system and center point coordinate and described conversion, the coordinate of the point in the screen picture repainted described in determining, and obtain described convergent-divergent multiple.
7. long-range annotations and comments move, the synchro system of convergent-divergent, it is characterized in that, comprising:
Monitor screen unit, draw for obtaining and be stored in the coordinate set of the current screen image on drawing painting canvas, described current screen image comprises the annotations and comments person's handwriting according to the acquisition of screen annotations and comments event; And when listening to described screen touch event, obtain translational displacement and/or the scaling of described screen touch event;
Processing unit, for according to described translational displacement and/or described scaling, carries out translation and/or convergent-divergent to described coordinate set, obtains the transformation matrix after translation and/or convergent-divergent; Change according to the original coordinate system of described transformation matrix to described current screen image, obtain the coordinate system after conversion; And according to the coordinate system after described conversion, the coordinate information of the screen picture repainted described in calculating and convergent-divergent multiple;
Drawing unit, for repainting described current screen image according to the coordinate system after described conversion, obtains the screen picture repainted;
Transmitting element, sends to interactive intelligent tablet computer by described coordinate information and convergent-divergent multiple, performs corresponding operation by described interactive intelligent tablet computer according to described coordinate information and convergent-divergent multiple.
8. long-range annotations and comments according to claim 7 move, the synchro system of convergent-divergent, it is characterized in that, also comprise:
Receiving element, for receiving the screen picture that described interactive intelligent tablet computer sends in real time;
Screen printing unit, for intercepting the screen picture of described real-time transmission, obtains snapshot picture; Described current screen image also comprises snapshot picture;
Described drawing unit is also for creating drawing painting canvas, and by described screen annotations and comments event, the movement according to current annotation touch point is drawn and stores described annotations and comments person's handwriting on described drawing painting canvas; And for described screenshotss Image Rendering is stored in described drawing painting canvas.
9. the long-range annotations and comments according to claim 7 or 8 move, the synchro system of convergent-divergent, it is characterized in that, described monitoring screen unit comprises the first monitoring module, the first data acquisition module, second monitors module and the second data acquisition module,
Described first monitors module, for monitoring screen annotations and comments event;
Described first data acquisition module, for when described first monitoring module listens to screen annotations and comments event, acquisition is drawn and is stored in the coordinate set of the current screen image on drawing painting canvas;
Described second monitors module, for monitoring screen touch event, and obtains touch point number;
Described data acquisition module, for when the touch point number that described second monitors module acquisition is one, using the displacement of described touch point movement as described translational displacement; Described second monitor the number of touch point that module obtains more than one time, obtain the central point of each described touch point, and according to the distance of each described touch point and described central point, determine described scaling.
10. the long-range annotations and comments according to claim 7 or 8 move, the synchro system of convergent-divergent, it is characterized in that, described processing unit comprises matrixing module, modular converter, computing module, the first coordinate obtaining module and the second coordinate obtaining module,
Described matrixing module is used for according to described translational displacement and/or described scaling, carries out translation and/or convergent-divergent to described coordinate set, obtains the transformation matrix after translation and/or convergent-divergent;
Described modular converter is used for changing according to the original coordinate system of described transformation matrix to described current screen image, obtains the coordinate system after conversion;
Described computing module is used for according to the coordinate system after described conversion, the coordinate information of the screen picture repainted described in calculating and convergent-divergent multiple;
Described first coordinate obtaining module, for obtaining the initial coordinate of touch point in screen touch event; And described touch point move after terminal point coordinate;
Described second coordinate obtaining module, for obtaining corner coordinate and the center point coordinate of described original coordinate system; And the corner coordinate of coordinate system after described conversion and center point coordinate.
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| CN201510952884.5A CN105573702A (en) | 2015-12-16 | 2015-12-16 | Remote headnote moving and scaling synchronization method and system |
| PCT/CN2016/090747 WO2017101441A1 (en) | 2015-12-16 | 2016-07-20 | Method and system for remote synchronization of annotation moving and scaling |
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