CN103412720A - Method and device for processing touch-control input signals - Google Patents
Method and device for processing touch-control input signals Download PDFInfo
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- CN103412720A CN103412720A CN2013102692214A CN201310269221A CN103412720A CN 103412720 A CN103412720 A CN 103412720A CN 2013102692214 A CN2013102692214 A CN 2013102692214A CN 201310269221 A CN201310269221 A CN 201310269221A CN 103412720 A CN103412720 A CN 103412720A
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Abstract
The invention discloses a method and device for processing touch-control input signals, wherein rotation of a target object is accurately controlled through a two-point touch control gesture. The method for processing the touch-control input signals comprises the steps that coordinate information of two touch-control starting points A1 and B1 is obtained, and the first vetorial angle formed between a ray with the A1 serving as the initial point and being connected to the B1 and the reference axis direction is calculated; coordinate information of two touch-control finishing points A2 and B2 is obtained, and the second vetorial angle formed between a ray with the A2 serving as the initial point and being connected to the B2 and the reference axis direction is calculated; the angular difference between the second vetorial angle and the first vetorial angle is calculated; according to the angular difference, the rotating direction of the touch control gesture from A1 to A2 and from B1 to B2 is decided.
Description
Technical field
The present invention relates to field of computer technology, relate in particular to a kind of method and device thereof of processing touch control type input signal.
Background technology
Existing touch-screen is in mobile terminal, the mode of picture browsing has multiple, multipoint-touch-technology as Apple, utilize this technology can be according to the convergent-divergent of the relative unique relationships control chart picture of a plurality of contacts on mobile terminal of touch screen, on the mobile terminal of touch screen of Motorola Inc., while checking image, click fast twice images in the scope of touch-screen viewing area and do not let go in addition, upwards interaction gets final product enlarged image after meal, but the downscaled images of interaction downwards.
Although the display technique to image in prior art is various, also there is no a kind of convenient control that realizes image rotation, cause user experience not good.
For addressing the above problem, existing CN101923438A discloses a kind of image display control method, Apparatus and system.The method saves as anchor point by the user to first push contact on the touch-screen in current scope; Follow the tracks of user's continuous sliding trace on touch-screen in current scope, according to the relativeness of described sliding trace and described anchor point, determine the demonstration steering order that the user inputs; Then according to described demonstration steering order, control described image and take described anchor point and be the center of circle, be rotated and zoom operations.
Yet what this technology adopted is that some touch technologies and sliding trace are all preset, causes the user to operate while using and easily be subjected to many restrictions.Need further improvement.
Summary of the invention
Fundamental purpose of the present invention is to disclose a kind of method and device thereof of processing touch control type input signal, accurately controls the rotation to destination object with 2 touch-control gestures.
For reaching above-mentioned purpose, the embodiment of the present invention discloses a kind of method of processing touch control type input signal, comprising:
Obtain the coordinate information of initial touch-control A1, B1 at 2, calculate and take A1 as starting point and to connect ray and the axial vector angle one of benchmark of B1;
Obtain the coordinate information that finishes touch-control A2, B2 at 2, calculate and take A2 as starting point and connect ray and the axial vector angle two of described benchmark of B2;
Differential seat angle between compute vector angle two and vector angle one;
Sense of rotation according to described differential seat angle judgement touch-control gesture A1 to A2 and B1 to B2;
Wherein, above-mentioned vector angle one and two is more than or equal to zero and be less than the angles of 360 degree for unified with what same reference axis rotated clockwise or counterclockwise, if the direction of this reference axis rotation is clockwise, differential seat angle is greater than zero this touch-control gesture of judgement for turning clockwise, if the direction of this reference axis rotation is counterclockwise, judge that this touch-control gesture is for turning clockwise when differential seat angle is less than zero.
For reaching above-mentioned purpose, the embodiment of the present invention also discloses a kind of device of processing touch control type input signal, comprising:
The first computing module, be used to obtaining the coordinate information of initial touch-control A1, B1 at 2, calculate and take A1 as starting point and to connect ray and the axial vector angle one of benchmark of B1;
The second computing module, take A2 as starting point and connect ray and the axial vector angle two of described benchmark of B2 be used to obtaining the coordinate information that finishes touch-control A2, B2 at 2, calculating;
The 3rd computing module be connected with first and second computing module, for the differential seat angle between compute vector angle two and vector angle one;
The sense of rotation judge module be connected with the 3rd computing module, for the sense of rotation according to described differential seat angle judgement touch-control gesture A1 to A2 and B1 to B2; Wherein, above-mentioned vector angle one and two is more than or equal to zero and be less than the angles of 360 degree for unified with what same reference axis rotated clockwise or counterclockwise, if the direction of this reference axis rotation is clockwise, differential seat angle is greater than zero this touch-control gesture of judgement for turning clockwise, if the direction of this reference axis rotation is counterclockwise, judge that this touch-control gesture is for turning clockwise when differential seat angle is less than zero.
Compared with prior art, the embodiment of the present invention has the following advantages at least:
Can realize the gesture rotate instruction input of 2 touch-controls, rotary mode freely, is fixed a finger rotation without a finger.And utilization of the present invention is that corresponding 2 front and back variations with the axial angle of benchmark of touch-control are calculated, can accurately calculate differential seat angle, so also just can accurately judge the sense of rotation of touch-control gesture, can be widely used on the electronic products such as mobile phone and digital camera, realize the flexible operating to image.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the sliding trace of disclosed 2 the touch-control gestures of the embodiment of the present invention;
Fig. 2 is the method flow diagram of the disclosed processing touch control type input signal of the embodiment of the present invention;
Fig. 3 is the device block diagram of the disclosed processing touch control type input signal of the embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description, specific implementation of the present invention is made a detailed description.
Embodiment mono-
The present embodiment discloses a kind of method of processing touch control type input signal.
The present embodiment, as shown in Figure 1, suppose that the sliding trace of 2 touch-control gestures is as follows:
The A point slides to A2 from A1, and the B point slides to B2 from B1, and the method for corresponding processing touch control type input signal comprises:
Step S1, obtain the coordinate information of initial touch-control A1, B1 at 2, calculate and take A1 as starting point and connect ray and the axial vector angle one of benchmark of B1.
The described reference axis direction of the present embodiment refers to an object of reference of selecting in plane coordinate system, and preferably, this reference axis can be X-axis, can be also Y-axis, and corresponding direction is positive dirction or negative direction also; Be that the reference axis direction includes but not limited to X-axis negative direction, X-axis positive dirction, Y-axis positive dirction or Y-axis negative direction.
Step S2, obtain the coordinate information that finishes touch-control A2, B2 at 2, calculate and take A2 as starting point and connect ray and the axial vector angle two of benchmark of B2.
The reference axis direction of this step indication is consistent with the described reference axis direction of above-mentioned steps S1.
Differential seat angle between step S3, compute vector angle two and vector angle one.
In this step, differential seat angle is the difference that vector angle two deducts vector angle one.
Step S4, according to the sense of rotation of differential seat angle judgement touch-control gesture A1 to A2 and B1 to B2.Wherein, above-mentioned vector angle one and two is more than or equal to zero and be less than the angles of 360 degree for unified with what same reference axis rotated clockwise or counterclockwise, if the direction of this reference axis rotation is clockwise, differential seat angle is greater than zero this touch-control gesture of judgement for turning clockwise, if the direction of this reference axis rotation is counterclockwise, judge that this touch-control gesture is for turning clockwise when differential seat angle is less than zero.
As shown in Figure 1, suppose that the reference axis direction is the X-axis positive dirction, the sense of rotation of reference axis is for turning clockwise, and the vector angle one of initial touch point A1B1 is α, and the vector angle two that finishes touch point A2B2 is β; Due to ∠ β > ∠ α, therefore, can judge that the sense of rotation of touch-control gesture is for turning clockwise.In like manner, the conclusion drawn with X-axis negative direction or other reference axis directions, with consistent with the drawn conclusion of X-axis positive dirction, does not repeat yet.
Due in practical operation, operation often all provides simultaneously to the Rotation and Zoom of destination object,, further comprises according to the sense of rotation of differential seat angle judgement touch-control gesture for this reason:
Judge that whether above-mentioned differential seat angle is more than or equal to rotation threshold value (usually, this rotation threshold value can be set to positive and negative 20 degree left and right), if so, is judged as spinning movement; Otherwise, be judged as zoom action.By this, the setting of passing threshold, can realize defining of Rotation and Zoom.
Corresponding with it, after being judged as spinning movement, according to sense of rotation, destination object is carried out to corresponding rotation; Wherein sense of rotation can be take the center of destination object and is rotated as axle, and the rotation amplitude be take 90 degree and is rotated as minimal gradient; The mid point of line between 2 of initial touch-controls of perhaps usining is done the rotation of respective angles ground as center, and namely the anglec of rotation is just consistent with differential seat angle; Perhaps otherwise be rotated.In like manner, after being judged as zoom action, and then according to the distance between 2 of initial touch-controls and the variation that finishes the distance between 2 of touch-controls, destination object is zoomed in or out to operation accordingly, wherein optional, the center of convergent-divergent includes but not limited to the mid point of line between 2 of initial touch-controls, and the ratio of convergent-divergent is the ratio of distances constant between the distance that finishes 2 of touch-controls and initial touch-control at 2.
To sum up, the embodiment of the present invention can realize the gesture rotate instruction input of 2 touch-controls, and rotary mode freely, is fixed a finger rotation without a finger.And utilization of the present invention is that corresponding 2 front and back variations with the axial angle of benchmark of touch-control are calculated, can accurately calculate differential seat angle, so also just can accurately judge the sense of rotation of touch-control gesture, can be widely used on the electronic products such as mobile phone and digital camera, realize the flexible operating to image.
Embodiment bis-
Corresponding with above-described embodiment one, the present embodiment provides a kind of device of processing touch control type input signal.As shown in Figure 3, this device comprises: the first computing module 1, the second computing module 2, the 3rd computing module 3 and sense of rotation judge module 4, wherein the 3rd computing module is connected with first and second computing module, and the sense of rotation judge module is connected with the 3rd computing module again.
The first computing module, be used to obtaining the coordinate information of initial touch-control A1, B1 at 2, calculate and take A1 as starting point and to connect ray and the axial vector angle one of benchmark of B1.Optionally, this reference axis direction is X-axis negative direction, X-axis positive dirction, Y-axis positive dirction or Y-axis negative direction.
The second computing module, take A2 as starting point and connect ray and the axial vector angle two of benchmark of B2 be used to obtaining the coordinate information that finishes touch-control A2, B2 at 2, calculating.
The 3rd computing module, for the differential seat angle between compute vector angle two and vector angle one.
The sense of rotation judge module, for the sense of rotation according to differential seat angle judgement touch-control gesture A1 to A2 and B1 to B2; Wherein, above-mentioned vector angle one and two is more than or equal to zero and be less than the angles of 360 degree for unified with what same reference axis rotated clockwise or counterclockwise, if the direction of this reference axis rotation is clockwise, differential seat angle is greater than zero this touch-control gesture of judgement for turning clockwise, if the direction of this reference axis rotation is counterclockwise, judge that this touch-control gesture is for turning clockwise when differential seat angle is less than zero.
Due in practical operation, Rotation and Zoom operation to destination object often all provides simultaneously, for this reason, preferably, above-mentioned sense of rotation judge module is provided with the rotation threshold value, while with the differential seat angle calculated at the 3rd computing module, being more than or equal to the rotation threshold value, the touch-control gesture is judged as to rotation, if the differential seat angle that the 3rd computing module calculates is less than the rotation threshold value, this touch-control gesture is judged as to zoom action.Corresponding with it, the sense of rotation judge module also is connected with rotation execution module 5 and convergent-divergent execution module 6.
The rotation execution module, for carrying out corresponding rotation according to sense of rotation to destination object.Optionally, this rotation execution module can be take the center of destination object and is rotated as axle, and the rotation amplitude be take 90 degree and is rotated as minimal gradient; The mid point of line between 2 of initial touch-controls of perhaps usining is done the rotation of respective angles ground as center, and namely the anglec of rotation is just consistent with differential seat angle.
The convergent-divergent execution module, zoom in or out operation for the distance according between 2 of initial touch-controls and the variation that finishes the distance between 2 of touch-controls accordingly to destination object.Optionally, this convergent-divergent execution module can be with the mid point of line between 2 of initial touch-controls, and the ratio of distances constant of take between 2 of the distance that finishes 2 of touch-controls and initial touch-controls carries out convergent-divergent as ratio.
The embodiment of the present invention can realize the gesture rotate instruction input of 2 touch-controls, and rotary mode freely, is fixed a finger rotation without a finger.And utilization of the present invention is that corresponding 2 front and back variations with the axial angle of benchmark of touch-control are calculated, can accurately calculate differential seat angle, so also just can accurately judge the sense of rotation of touch-control gesture, can be widely used on the electronic products such as mobile phone and digital camera, realize the flexible operating to image.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. a method of processing touch control type input signal, is characterized in that, comprising:
Obtain the coordinate information of initial touch-control A1, B1 at 2, calculate and take A1 as starting point and to connect ray and the axial vector angle one of benchmark of B1;
Obtain the coordinate information that finishes touch-control A2, B2 at 2, calculate and take A2 as starting point and connect ray and the axial vector angle two of described benchmark of B2;
Differential seat angle between compute vector angle two and vector angle one;
Sense of rotation according to described differential seat angle judgement touch-control gesture A1 to A2 and B1 to B2;
Wherein, above-mentioned vector angle one and two is more than or equal to zero and be less than the angles of 360 degree for unified with what same reference axis rotated clockwise or counterclockwise, if the direction of this reference axis rotation is clockwise, differential seat angle is greater than zero this touch-control gesture of judgement for turning clockwise, if the direction of this reference axis rotation is counterclockwise, judge that this touch-control gesture is for turning clockwise when differential seat angle is less than zero.
2. the method for processing touch control type input signal according to claim 1, is characterized in that, described reference axis direction is X-axis negative direction, X-axis positive dirction, Y-axis positive dirction or Y-axis negative direction.
3. the method for processing touch control type input signal according to claim 2, is characterized in that, comprises according to the sense of rotation of described differential seat angle judgement touch-control gesture:
Judge that whether described differential seat angle is more than or equal to the rotation threshold value, if so, is judged as spinning movement; Otherwise, be judged as zoom action.
4. the method for processing touch control type input signal according to claim 3, is characterized in that, also comprises:
After being judged as spinning movement, according to sense of rotation, destination object is carried out to corresponding rotation; And
After being judged as zoom action, and then according to the distance between 2 of initial touch-controls and the variation that finishes the distance between 2 of touch-controls, destination object is zoomed in or out to operation accordingly.
5. according to the method for the arbitrary described processing touch control type input signal of claim 2 to 4, it is characterized in that, described sense of rotation be take the center of destination object and is rotated as axle, and the rotation amplitude be take 90 degree and is rotated as minimal gradient; The mid point of line between 2 of initial touch-controls of perhaps usining is done the rotation of respective angles ground as center;
The center of wherein said convergent-divergent is the mid point of line between 2 of beginning touch-controls, and the ratio of convergent-divergent is the ratio of distances constant between the distance that finishes 2 of touch-controls and initial touch-control at 2.
6. a device of processing touch control type input signal, is characterized in that, comprising:
The first computing module, be used to obtaining the coordinate information of initial touch-control A1, B1 at 2, calculate and take A1 as starting point and to connect ray and the axial vector angle one of benchmark of B1;
The second computing module, take A2 as starting point and connect ray and the axial vector angle two of described benchmark of B2 be used to obtaining the coordinate information that finishes touch-control A2, B2 at 2, calculating;
The 3rd computing module be connected with first and second computing module, for the differential seat angle between compute vector angle two and vector angle one;
The sense of rotation judge module be connected with the 3rd computing module, for the sense of rotation according to described differential seat angle judgement touch-control gesture A1 to A2 and B1 to B2; Wherein, above-mentioned vector angle one and two is more than or equal to zero and be less than the angles of 360 degree for unified with what same reference axis rotated clockwise or counterclockwise, if the direction of this reference axis rotation is clockwise, differential seat angle is greater than zero this touch-control gesture of judgement for turning clockwise, if the direction of this reference axis rotation is counterclockwise, judge that this touch-control gesture is for turning clockwise when differential seat angle is less than zero.
7. the device of touch control type input signal is processed in processing according to claim 6, it is characterized in that, described reference axis direction is X-axis negative direction, X-axis positive dirction, Y-axis positive dirction or Y-axis negative direction.
8. the device of touch control type input signal is processed in processing according to claim 7, it is characterized in that, described sense of rotation judge module is provided with the rotation threshold value, while at described differential seat angle, to be more than or equal to, rotating threshold value, the touch-control gesture is judged as to rotation, if described differential seat angle is less than the rotation threshold value, this touch-control gesture is judged as to zoom action;
Wherein said sense of rotation judge module also is connected with rotation execution module and convergent-divergent execution module;
Described rotation execution module, for carrying out corresponding rotation according to sense of rotation to destination object;
Described convergent-divergent execution module, zoom in or out operation for the distance according between 2 of initial touch-controls and the variation that finishes the distance between 2 of touch-controls accordingly to destination object.
9. the device of processing touch control type input signal according to claim 8, is characterized in that, described rotation execution module be take the center of destination object and is rotated as axle, and the rotation amplitude be take 90 degree and is rotated as minimal gradient; The mid point of line between 2 of initial touch-controls of perhaps usining is done the rotation of respective angles ground as center.
10. the device of processing touch control type input signal according to claim 8, it is characterized in that, the convergent-divergent execution module is with the mid point of line between 2 of initial touch-controls, and the ratio of distances constant of take between 2 of the distance that finishes 2 of touch-controls and initial touch-controls carries out convergent-divergent as ratio.
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