CN101510135B - Input pattern judgement method - Google Patents
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- CN101510135B CN101510135B CN2009101299700A CN200910129970A CN101510135B CN 101510135 B CN101510135 B CN 101510135B CN 2009101299700 A CN2009101299700 A CN 2009101299700A CN 200910129970 A CN200910129970 A CN 200910129970A CN 101510135 B CN101510135 B CN 101510135B
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Abstract
The invention provides an input pattern determination method, wherein the input pattern determination method is applicable to being carried out in electronic devices with touch control panels. The method comprises the steps of detecting a plurality of points of intersection between an input pattern input by the touch control panel and a circumscribed polygon of the input pattern; detecting the area ratio of the polygon formed by the encirclement of the points of intersection and the circumscribed polygon; and determining the shape of the input pattern according to the area ratio. By designing the specific input pattern determination method, the embodiment of the invention can realize the input operation which can be completed by a plurality of fingersin the prior art by using single touch object, overcome the defect of inconvenient operation of the electronic devices caused by the small-size touch control panel which is hard to provide enough mobile space needed by multi-point touch, and improve operability and convenience of the electronic devices with touch control panels.
Description
Technical field
The invention relates to the touch control detection technical field, and particularly relevant for a kind of input pattern judgement method and a kind of computer readable storage medium that is suitable for being executed in the electronic installation with contact panel.
Background technology
Now, the application of contact panel on all kinds of electronic devices universalness that also becomes, and it is also more and more diversified to be used for the kind of operating gesture of contact panel.Wherein, aspect the multi-point touch gesture,, for example amplification of picture image, dwindle, rotate or the like though it can be with the specific function of mode operating electronic devices more intuitively; But too small for fear of offering the required mobile space of multi-point touch on undersized contact panel, and cause inconvenience when using electronic installation, limited its operability and convenience.
Summary of the invention
One of purpose of the present invention is providing a kind of input pattern judgement method exactly, is suitable for being executed in the electronic installation with contact panel, to improve the operability and the convenience of electronic installation.
A further object of the present invention provides a kind of computer readable storage medium, stores a program on it, and this program makes the electronic installation with contact panel carry out aforesaid input pattern judgement method when being performed.
For reaching one of above-mentioned or partly or entirely purpose or other purposes, one embodiment of the invention proposes a kind of input pattern judgement method, is suitable for being executed in the electronic installation with contact panel.This input pattern judgement method comprises step: detect the tablet pattern a plurality of intersection points of the circumscribed polygon of tablet pattern therewith by the contact panel input; Detect the polygon that these intersection points surround and the area ratio of aforesaid circumscribed polygon; And the shape of judging tablet pattern according to aforesaid area ratio.
In one embodiment of this invention, aforesaid tablet pattern is a nonlinear patterns.
In one embodiment of this invention, the angle of each interior angle of aforesaid circumscribed polygon is respectively default fixed value; Further, the angle of each interior angle of aforesaid circumscribed polygon is predeterminable is identical.
In one embodiment of this invention, aforesaidly judge that according to area ratio the step of the shape of tablet pattern comprises: when aforesaid area ratio during than critical value, judges that tablet pattern is circle greater than an area; And when aforesaid area ratio less than area during than critical value, the judgement tablet pattern is an arc.
In one embodiment of this invention, the judgement of the shape of the tablet pattern of aforesaid input pattern judgement method is also according to the quantity of these intersection points.In this case, the judgement of the shape of tablet pattern can specifically comprise step: when count on the limit that aforesaid area ratio equals circumscribed polygon greater than area than the quantity of critical value and these intersection points, judge that tablet pattern is circle; And when aforesaid area ratio was counted less than the limit of circumscribed polygon than the quantity of critical value or these intersection points less than area, the judgement tablet pattern was an arc.
In one embodiment of this invention, in the input process of tablet pattern, on contact panel, keep a predetermined time interval motionless when detecting the touching object that is used to import aforementioned tablet pattern, perhaps detect the touching object and leave contact panel, judge that then the tablet pattern input finishes.The detection step of aforesaid a plurality of intersection points and the detection step of area ratio then begin to carry out after the tablet pattern input is finished.
In one embodiment of this invention, aforesaid input pattern judgement method also comprises step: the shape according to the tablet pattern after judging produces corresponding identification code, to carry out corresponding operation.
In one embodiment of this invention, aforesaid input pattern judgement method also comprises step: when polygonal area value that these intersection points surrounded during less than an area critical value, judge no tablet pattern input.
In one embodiment of this invention, aforesaid input pattern judgement method also comprises step: according to the direction of the appearance sequential decision tablet pattern of these intersection points; Wherein, the direction of tablet pattern can be clockwise direction or counter clockwise direction.Further, can produce corresponding identification code according to the shape and the direction of the tablet pattern after judging, to carry out corresponding operation.
For reaching one of above-mentioned or partly or entirely purpose or other purposes, another embodiment of the present invention proposes a kind of computer readable storage medium, store a program on it, this program makes electronic installation with contact panel that the shape and/or the direction of the tablet pattern by this contact panel input are judged when being performed.
Compared to prior art, the embodiment of the invention is by the specific input pattern judgement method of design, utilize single touching object (for example single finger) needing in the prior art can realize the just achievable input operation of a plurality of fingers, overcome because of the small size contact panel is difficult to provide the multi-point touch unhandy defective of electronic installation that required enough mobile spaces cause, thereby improved the operability and the convenience of electronic installation greatly with contact panel.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 illustrates a view of the tablet pattern that passes through the contact panel input that is relevant to the embodiment of the invention;
Fig. 2 illustrates another view of the tablet pattern that passes through the contact panel input that is relevant to the embodiment of the invention;
Fig. 3 shows a plurality of steps of the input pattern judgement method that is relevant to the embodiment of the invention;
Fig. 4 shows and is relevant to passing through the contact panel input and being judged as round tablet pattern of the embodiment of the invention;
Fig. 5 shows the tablet pattern that arc was imported and be judged as to contact panel that passes through that is relevant to the embodiment of the invention;
Fig. 6 (a) and Fig. 6 (b) illustrate the judgement of the clockwise circle that is relevant to the embodiment of the invention;
Fig. 7 (a) and Fig. 7 (b) illustrate the judgement of the counterclockwise circle that is relevant to the embodiment of the invention;
The circumscribed polygon that Fig. 8 illustrates the tablet pattern that is relevant to the embodiment of the invention is a circumscribed triangle;
The circumscribed polygon that Fig. 9 illustrates the tablet pattern that is relevant to the embodiment of the invention is circumscribed pentagon.
Drawing reference numeral:
10: contact panel
20a, 20b, 30a, 30b, 30c, 30d, 40,50: tablet pattern
STUV: circumscribed quadrilateral
A, B, C, D: the intersection point of tablet pattern and its circumscribed quadrilateral
E, F, G: the intersection point of tablet pattern and its circumscribed quadrilateral
1,2,3,4: the intersection point of tablet pattern and its circumscribed quadrilateral
RST: circumscribed triangle
U, V, W: the intersection point of tablet pattern and its circumscribed triangle
MNOPQ: circumscribed pentagon
H, I, J, K, L: tablet pattern is circumscribed pentagonal intersection point with it
100,120,140,140a, 140b: step
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to a graphic preferred embodiment, can clearly present.The direction term of being mentioned in following examples, for example: upper and lower a, left side or right side etc. only are the directions with reference to annexed drawings.Therefore, the direction term of use is to be used for illustrating not to be to be used for limiting the present invention.
Specifically describe a kind of input pattern judgement method that is relevant to the embodiment of the invention below in conjunction with correlative type, be executed in electronic installation (not illustrating among the figure) with contact panel 10.
Referring to Fig. 1, it illustrates a view of the tablet pattern that passes through contact panel 10 inputs that is relevant to the embodiment of the invention.As shown in Figure 1, user's finger is after beginning from the X point on the contact panel 10 to move, and when electronic installation detects finger at certain point, for example Y point maintenance one predetermined time interval is motionless, judge by this that then the Y point is the terminal point of tablet pattern, that is judge that tablet pattern input finishes.
Wherein, tablet pattern is the motion track of finger on contact panel 10, and the size of described predetermined time interval can be set according to the needs of practical application, and the finger also can by other touch object for example pointer substitute.In the input process of tablet pattern, the coordinate of the motion track of finger on contact panel 10 can be collected constantly, until finishing just, the tablet pattern input stops, after pausing the several seconds, finger can be judged as for instance that figure input has been finished or as shown in Figure 2, after moving to the Y point, finger leaves contact panel 10 when detecting, judge by this that then the Y point is the terminal point of tablet pattern, that is judge that tablet pattern input finishes.
Need to prove that only for giving an example, the user can import the non-linear tablet pattern of required arbitrary shape to the tablet pattern that Fig. 1 and Fig. 2 illustrate by contact panel 10.
Hold above-mentioned, after the tablet pattern input is finished, the input pattern judgement method that is relevant to the embodiment of the invention will be carried out step as shown in Figure 3: detect the tablet pattern a plurality of intersection points (step 100) of the circumscribed polygon of tablet pattern therewith by contact panel 10 inputs, detect polygon that these intersection points the surround area ratio (step 120) of circumscribed polygon therewith, and the shape (step 140) of judging tablet pattern according to the quantity (optionally) of area ratio and these intersection points.For instance, when area ratio is counted greater than the limit of circumscribed polygon than the quantity of critical value and these intersection points greater than default area, judge that first shape (step 140a) that is shaped as of tablet pattern is for example justified; Otherwise when area ratio was counted less than the limit of circumscribed polygon than the quantity of critical value or these intersection points less than default area, that judges tablet pattern was shaped as for example arc of second shape (step 140b).
The input pattern judgement method that illustrates embodiment of the invention proposition below in conjunction with Fig. 4 and Fig. 5 is round or the arc of being shaped as how to judge tablet pattern.
Referring to Fig. 4, it shows and is relevant to passing through contact panel 10 inputs and being judged as round tablet pattern 20a of the embodiment of the invention.As shown in Figure 4, tablet pattern 20a and its circumscribed quadrilateral STUV (are rectangle shown in Fig. 4, its each interior angle is 90 degree) exist four intersection point A, B, C and D, these intersection points A, B, C and D can utilize the coordinate of the motion track of touching object collected in the input process of tablet pattern 20a obtain and in present embodiment, be respectively tablet pattern 20a the most left point, go up point, the rightest point most and descend point most.The polygon ABCD that these intersection points A, B, C and D are surrounded is the quadrilateral that is connected to tablet pattern 20a in, and the area of quadrilateral ABCD equals the area sum of triangle ABC and ACD, therefore can utilize the triangle area formula to calculate the area of quadrilateral ABCD.Moreover the area of circumscribed quadrilateral STUV can utilize the coordinate of four some A, B, C and D on the circumscribed quadrilateral STUV to try to achieve easily.
At this, because polygon ABCD compares critical value with the area ratio of circumscribed quadrilateral STUV greater than default area, the quantity of the intersection point of tablet pattern 20a and its circumscribed quadrilateral STUV is four limit numbers that equal circumscribed quadrilateral STUV, thereby tablet pattern 20a satisfies the round condition that is judged as shown in Figure 3.In the present embodiment, the purpose that area is set can reach difference circle and arc than the size of critical value gets final product, and it typically is a value range for example 0.45～0.5.On the other hand, if the area ratio of polygon ABCD and circumscribed quadrilateral STUV less than default area than critical value, then tablet pattern 20a will be judged as arc.
Referring to Fig. 5, it shows the tablet pattern 20b that passes through contact panel 10 inputs and be judged as arc that is relevant to the embodiment of the invention.As shown in Figure 5, tablet pattern 20b and its circumscribed quadrilateral STUV (are rectangle shown in Fig. 5, its each interior angle is 90 degree) exist three intersection point E, F and G, these intersection points E, F and G can utilize the coordinate of the motion track of touching object collected in the input process of tablet pattern 20b to obtain and in present embodiment, be respectively the most left point of tablet pattern 20b, on point and the rightest point.At this, the most left some E of tablet pattern 20b also is the point that descends most of tablet pattern 20b simultaneously; In other words, the most left point of tablet pattern 20b, go up point, the rightest point most and descend to have in the point two points to overlap most.Moreover the polygon EFG that these intersection points E, F and G are surrounded is the triangle that is connected to tablet pattern 20b in, and the area of triangle EFG can utilize the triangle area formula to try to achieve.In addition, the area of circumscribed quadrilateral STUV can utilize three some E, F on the circumscribed quadrilateral STUV and the coordinate of G to try to achieve easily.
At this, polygon EFG compares critical value with the area ratio of circumscribed quadrilateral STUV less than default area, the quantity of the intersection point of tablet pattern 20b and its circumscribed quadrilateral STUV is three and less than the limit number of circumscribed quadrilateral STUV, thereby tablet pattern 20b satisfies the condition that is judged as arc as shown in Figure 3.On the other hand, when the quantity of the intersection point of tablet pattern and its circumscribed polygon is used as one of the foundation of the shape of judging tablet pattern, even polygon EFG compares critical value with the area ratio of circumscribed quadrilateral STUV greater than default area, because the quantity of the intersection point of tablet pattern 20b and its circumscribed quadrilateral STUV is less than the limit number of circumscribed quadrilateral STUV, it still can be judged as arc.
Need explanation, the judgement of the shape of Fig. 4 and tablet pattern 20a, 20b shown in Figure 5 with the quantity of area ratio and intersection point both as foundation; Certainly, also can only be used as the judgment basis of the shape of tablet pattern, reach the purpose of difference circle and arc with area ratio.
Referring to Fig. 6 (a) and Fig. 6 (b) and Fig. 7 (a) and Fig. 7 (b), will be direction how to judge tablet pattern to judge that round direction specifically describes the input pattern judgement method that the embodiment of the invention proposes as an example below.
Particularly, four intersection points 1,2,3 and 4 of tablet pattern 30a shown in Fig. 6 (a) and its circumscribed quadrilateral (shown in the frame of broken lines among Fig. 6 (a)) in the input process of tablet pattern 30a according to going up most point, the rightest point, descending point to occur most to the order of left point, by this as can be known these four intersection points 1,2,3 and 4 appearance order along clockwise direction.Four intersection points 1,2,3 and 4 of tablet pattern 30b shown in Fig. 6 (b) and its circumscribed quadrilateral (shown in the frame of broken lines among Fig. 6 (b)) in the input process of tablet pattern 30b be according to the rightest point, descend most point, the most left on the order of point occur, by this as can be known these four intersection points 1,2,3 and 4 appearance order equally along clockwise direction.Therefore, tablet pattern 30a and 30b shown in Fig. 6 (a) and Fig. 6 (b) are judged as clockwise circle, that is the direction of circle is a clockwise direction.
Four intersection points 1,2,3 and 4 of tablet pattern 30c shown in Fig. 7 (a) and its circumscribed quadrilateral (shown in the frame of broken lines among Fig. 7 (a)) in the input process of tablet pattern 30c be according to the most left point, descend most point, the rightest on the order of point occur, by this as can be known these four intersection points 1,2,3 and 4 appearance order along counterclockwise.Four intersection points 1,2,3 and 4 of tablet pattern 30d shown in Fig. 7 (b) and its circumscribed quadrilateral (shown in the frame of broken lines among Fig. 7 (b)) are according to the rightest point in the input process of tablet pattern 30d, go up point, the most left point most and occur to the order of descending most point, by this as can be known these four intersection points 1,2,3 and 4 appearance order equally along counterclockwise.Therefore, tablet pattern 30c and 30d shown in Fig. 7 (a) reaches (b) are judged as counterclockwise circle, that is the direction of circle is counterclockwise.
Be understandable that the method for the direction of aforesaid judgement circle is equally applicable to other tablet patterns, for example distinguishing tablet pattern in proper order according to the appearance of intersection point is arc clockwise or arc counterclockwise.
In addition, need to prove that the circumscribed polygon in the above embodiment of the present invention is not limited to quadrilateral, it also can be other polygons, for example triangle, pentagon, hexagon etc.; The angle of each interior angle of these circumscribed polygons can be the fixed value of presetting, and predeterminable further be that the angle of each interior angle is identical.Certainly, the angle of each interior angle of these circumscribed changeable shapes also can be that unfixing and random number changes, and just so will increase the complexity that aforementioned intersection point detects.The angle that only illustrates each interior angle of circumscribed polygon below in conjunction with Fig. 8 and Fig. 9 is the situation of the fixed value preset:
Referring to Fig. 8, the polygon that is cut in tablet pattern 40 outward adopts the angle of each interior angle of circumscribed triangle RST and this circumscribed triangle RST to be 60 degree, tablet pattern 40 exists three intersection point U, V and W with circumscribed triangle RST, and these intersection points U, V and W can utilize the coordinate of the motion track of touching object collected in the input process of tablet pattern 40 to obtain.Moreover, be connected to the triangle of tablet pattern 40 in the polygon UVW one that these intersection points U, V and W are surrounded, and the area of this triangle UVW can utilize the triangle area formula to try to achieve.In addition, the area of circumscribed triangle RST can utilize three some U, V on the circumscribed triangle RST and the coordinate of W to try to achieve easily.At this, the triangle UVW that is surrounded as these intersection points U, V and W with the area ratio of circumscribed triangle RST greater than default area during than critical value, because the quantity of the intersection point of tablet pattern 40 and its circumscribed triangle RST equals the limit number of circumscribed triangle RST, tablet pattern 40 will be judged as circle; And the direction of circle can be judged in proper order according to the appearance of intersection point U, V and W.
Referring to Fig. 9, the polygon that is cut in tablet pattern 50 outward adopts the angle of each interior angle of circumscribed pentagon MNOPQ and this circumscribed pentagon MNOPQ to be 120 degree, tablet pattern 50 exists five intersection point H, I, J, K and L with circumscribed pentagon MNOPQ, and these intersection points H, I, J, K and L can utilize the coordinate of the motion track of touching object collected in the input process of tablet pattern 50 to obtain.Moreover the polygon HIJKL that these intersection points H, I, J, K and L are surrounded is the pentagon that is connected to tablet pattern 50 in, and the area of this pentagon HIJKL equals the area sum of triangle HIJ, HJK and HKL, thereby can utilize the triangle area formula to try to achieve.In addition, the area of circumscribed pentagon MNOPQ can utilize the coordinate of five some H, I, J, K and L on the circumscribed pentagon MNOPQ to try to achieve easily.At this, the pentagon HIJKL that is surrounded as these intersection points H, I, J, K and L with the area ratio of circumscribed pentagon MNOPQ greater than default area during than critical value, because the quantity of the intersection point of tablet pattern 50 pentagon MNOPQs circumscribed with it equals the limit number of circumscribed pentagon MNOPQ, tablet pattern 50 will be judged as circle; And the direction of circle can be judged in proper order according to the appearance of intersection point H, I, J, K and L.
Moreover, in actual applications, on contact panel 10, cause maloperation because of careless the touching for avoiding the user, can be further to setting an area critical value by the polygonal area size that a plurality of intersection point surrounded of tablet pattern and its circumscribed polygon.Particularly, when described polygonal area during greater than the area critical value, judging has the tablet pattern input; Otherwise,, judge no tablet pattern input when polygonal area during less than the area critical value.Wherein, the setting of the size of area critical value can be relevant with the pixel resolution and the panel size size of contact panel 10.
In addition, the input pattern judgement method that is relevant to the embodiment of the invention also can be further produces corresponding identification code according to the shape and/or the direction of the tablet pattern after judging, to carry out corresponding operational example as amplifying, dwindle and operation such as rotation.
In sum, previous embodiment of the present invention is by the specific input pattern judgement method of design, utilize single touching object (for example single finger) needing in the prior art can realize the just achievable input operation of a plurality of fingers, overcome because of the small size contact panel is difficult to provide the multi-point touch unhandy defective of electronic installation that required enough mobile spaces cause, thereby improved the operability and the convenience of electronic installation greatly with contact panel.Certainly, the input pattern judgement method that the embodiment of the invention proposes can be used the electronic installation of the contact panel with various different sizes, and is not limited only to have the electronic installation of small size contact panel.
In addition, the input pattern judgement method that the above embodiment of the present invention is described can be used as a program and is stored in the computer readable storage medium, when this program makes electronic installation with contact panel 10 when being performed the shape and/or the direction of the tablet pattern by contact panel 10 inputs is judged.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (11)
1. an input pattern judgement method is suitable for being executed in one and has in the electronic installation of contact panel, it is characterized in that described input pattern judgement method comprises the following steps:
Detect by a tablet pattern of described contact panel input and a plurality of intersection points of a circumscribed polygon of described tablet pattern, described tablet pattern is round or arc;
The detection polygon that described these intersection points surrounded and the area ratio of described circumscribed polygon; And
Be shaped as circle or arc according to what described area ratio was judged described tablet pattern, comprise: when described area ratio during than critical value, judges that described tablet pattern is circle greater than an area; And during than critical value, judge that described tablet pattern is an arc less than described area when described area ratio.
2. input pattern judgement method as claimed in claim 1 is characterized in that the angle of each interior angle of described circumscribed polygon is respectively default fixed value.
3. input pattern judgement method as claimed in claim 2 is characterized in that the angle of each interior angle of described circumscribed polygon is identical.
4. input pattern judgement method as claimed in claim 1 is characterized in that, the judgement of the shape of described tablet pattern comprises:
When count on the limit that described area ratio equals described circumscribed polygon greater than an area than the quantity of critical value and described these intersection points, judge that described tablet pattern is circle; And
When described area ratio is counted less than the limit of described circumscribed polygon than the quantity of critical value or described these intersection points less than described area, judge that described tablet pattern is an arc.
5. input pattern judgement method as claimed in claim 1, wherein be characterised in that, in the input process of described tablet pattern, on described contact panel, keep a predetermined time interval motionless when detecting the touching object that is used to import described tablet pattern, perhaps detect described touching object and leave described contact panel, judge that then the input of described tablet pattern finishes; The detection step of described these intersection points and the detection step of described area ratio then begin to carry out after described tablet pattern input is finished.
6. input pattern judgement method as claimed in claim 1 is characterized in that, described method also comprises step:
Shape according to the described tablet pattern after judging produces corresponding identification code, to carry out corresponding operation.
7. input pattern judgement method as claimed in claim 1 is characterized in that, described method also comprises step:
When described polygonal area value that described these intersection points surrounded during, judge no described tablet pattern input less than an area critical value.
8. input pattern judgement method as claimed in claim 1 is characterized in that, described method also comprises step:
Direction according to the described tablet pattern of appearance sequential decision of described these intersection points.
9. input pattern judgement method as claimed in claim 8 is characterized in that, the direction of described tablet pattern is clockwise direction or counter clockwise direction.
10. input pattern judgement method as claimed in claim 8 is characterized in that, described method also comprises step:
When described polygonal area value that described these intersection points surrounded during, judge no described tablet pattern input less than an area critical value.
11. input pattern judgement method as claimed in claim 8 is characterized in that, described method also comprises step:
Shape and direction according to the described tablet pattern after judging produce corresponding identification code, to carry out corresponding operation.
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| KR101260834B1 (en) * | 2010-12-14 | 2013-05-06 | 삼성전자주식회사 | Method and device for controlling touch screen using timeline bar, recording medium for program for the same, and user terminal having the same |
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