CN102799345A - Method for magnifying image on touch screen and electronic device - Google Patents
Method for magnifying image on touch screen and electronic device Download PDFInfo
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- CN102799345A CN102799345A CN2011101402003A CN201110140200A CN102799345A CN 102799345 A CN102799345 A CN 102799345A CN 2011101402003 A CN2011101402003 A CN 2011101402003A CN 201110140200 A CN201110140200 A CN 201110140200A CN 102799345 A CN102799345 A CN 102799345A
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Abstract
The invention relates to a method for magnifying an image on a touch screen and an electronic device. The method for magnifying the image on the touch screen comprises the following steps of: receiving position information of at least two touch points on the touch screen; determining a rectangular scope by virtue of the position information of the at least two touch points; determining the maximum and nondeformable magnification factor of one image contained by the rectangular scope on a display area according to the length and the width of the display area of the touch screen as well as the length and the width of the rectangular scope; and magnifying the image in the rectangular scope according to the maximum magnification factor and displaying the image in the rectangular scope in the center of the display area.
Description
Technical field
The present invention relates to a kind of image display method, particularly relate to a kind of on Touch Screen the method for magnified image.
Background technology
In recent years, the multi-point touch screen is day by day popularized.With regard to the equipment of present multi-point touch screen on the market; Mostly the mode of browsing image (comprising picture, webpage, navigation interface, film etc.) is that the user pins screen two places with two fingers; Move representative outside two then the sensing and want magnified image, move in two sensings and will dwindle image.
Though this kind mode is convenient, and is still quick inadequately, not enough intuition.The user has obviously known the thing that will see which scope in the image, still wants both hands to pin two then outer moving of pointing to.
Therefore, the present invention proposes the method that a kind of multi-point touch image amplifies fast for addressing the above problem.
Summary of the invention
The present invention provide a kind of on Touch Screen the method for magnified image, it comprises: be received at least 2 positional informations of touching a little on the Touch Screen; Determine a rectangular extent with these at least 2 positional informations of touching a little; According to the length of the viewing area of this Touch Screen and the length and the width of width and this rectangular extent, decision is amplified the image that this rectangular extent comprised and indeformable maximum amplification times yield on this viewing area; According to this maximum amplification times yield this image in this rectangular extent is amplified, and this image in this rectangular extent is shown in the central authorities of this viewing area.
The present invention also provides a kind of electronic installation in addition, and it comprises: a Touch Screen and a processor.Wherein this Touch Screen comprises a viewing area.This processor; Be received at least 2 positional informations of touching a little on this viewing area of this Touch Screen; Determine a rectangular extent with these at least 2 positional informations of touching a little; According to the length of this viewing area of this Touch Screen and the length and the width of width and this rectangular extent, decision is amplified the image that this rectangular extent comprised and indeformable maximum amplification times yield on this viewing area, according to this maximum amplification times yield this rectangular extent is amplified; And control this Touch Screen, make the central authorities that this image in this rectangular extent are shown in this viewing area.
Description of drawings
Fig. 1 shows the block schematic diagram according to the electronic installation of the embodiment of the invention.
Fig. 2 shows the process flow diagram of the method for magnified image on Touch Screen according to the embodiment of the invention.
Fig. 3 A～3D shows with two and refers to push the example that causes 2 to touch a little with magnified image.
Fig. 4 A～4D shows with three fingers and pushes the example that causes 3 to touch a little with magnified image.
Fig. 5 show according to the embodiment of the invention with 3 examples of touching some the method for decision rectangular extent.
Fig. 6 A～6C demonstration is touched another example of the method for decision rectangular extent according to the embodiment of the invention with 3.
Fig. 7 shows according to the method for magnified image on Touch Screen of the embodiment of the invention and the key diagram of the traditional compatible application of magnified image method.
The reference numeral explanation
Touch Screen 30
Rectangular extent 35 '
Embodiment
For making above-mentioned and other purposes of the present invention, characteristic and the advantage can be more obviously understandable, the hereinafter spy enumerates preferred embodiment, and is described with reference to the accompanying drawings as follows.Instructions of the present invention provides various embodiment that the technical characterictic of the different embodiments of the present invention is described.Wherein, the usefulness that is configured to explanation of each element among the embodiment is not in order to restriction the present invention.And the part of drawing reference numeral repeats among the embodiment, is for the purpose of simplifying the description, is not the relevance that means between the different embodiment.
Fig. 1 shows the block schematic diagram according to the electronic installation of the embodiment of the invention.Electronic installation 10 can be mobile computer, mobile phone, personal digital assistant, or any electronic installation that disposes contact panel.Electronic installation 10 comprises: central processing unit 11, contact panel 13.Contact panel 13 comprises the display surface with touch controllable function, and the user can be by contact panel 13 input instructions and information.Central processing unit 11 is controlled the running of contact panel 13 and whole electronic installation 10 according to instruction and information by contact panel 13 inputs.
This display surface of contact panel 13 can show various image objects; When user's desire is amplified a part of part of this image object; Only need to point out the part that its desire is amplified with two fingers or three finger frames; Central processing unit 11 can calculate suitable enlargement ratio automatically, and control contact panel 13, the partial image that makes this user institute desire amplification of enlarged and displayed on this display surface.The detailed method step is of the back.
Fig. 2 shows the process flow diagram of the method for magnified image on Touch Screen according to the embodiment of the invention.
In step S20, show image on the display surface of a Touch Screen.Referring to Fig. 3 A, show " acer " image on the Touch Screen 30.
Among the step S21, be received at least 2 positional informations of touching a little on this Touch Screen.
Among the step S23, with the rectangular extent on these at least 2 these Touch Screens of positional information decision that touch a little, and in a frame of this this rectangular extent of viewing area demonstration.According to touching quantity a little, can adopt different modes to decide this rectangular extent.For example, if touch and a little have 2, the shortest line between then touching a little with these 2 determines this rectangular extent as a diagonal line of rectangle.Image in this rectangular extent is promptly as the object of enlarged and displayed.For example, referring to Fig. 3 B, in the Touch Screen 30, show and touch a frame of this rectangular extent that the position determined 35 by these 2.At this is that to press with two fingers that 2 of causing touch be example a little, and the quantity of touching a little is not limited to 2.As for touching the situation that a little has more than 3, will illustrate in the back literary composition.
Among the step S25, according to the length of the viewing area of this Touch Screen and the length and the width of width and this rectangular extent, decision is amplified the image that this rectangular extent comprised and indeformable maximum amplification times yield on this viewing area.For example; The viewing area of this Touch Screen is this rectangular extent 10 times of the length of vertical direction in the length of vertical direction; And the viewing area of this Touch Screen width in the horizontal direction is 5 times of this rectangular extent width in the horizontal direction; Then in order to make this image in this rectangular extent after being exaggerated, still can not keep original length breadth ratio (indeformable), then this rectangular extent on this viewing area, amplify and indeformable maximum amplification times yield for amplifying 5 times.
In step S27, this image in this rectangular extent is amplified according to this maximum amplification times yield.In last example, be this image in this rectangular extent is amplified 5 times.
In step S29, this image in this rectangular extent after amplifying is shown in the central authorities of this viewing area.Referring to Fig. 3 C, show this image in this rectangular extent 35 ' after amplifying on the Touch Screen 30 at once.
After the user pointed relieving, the image on the Touch Screen was shown in Fig. 3 D, and the partial image that its desire is amplified has been exaggerated and has put middle demonstration, and the peripheral image outside this rectangular extent 35 also is shown on this Touch Screen with same enlargement ratio.
Compared to traditional method; The present invention has advantage at least: (1) is quick: the moment that the two fingers of user press down, the arithmetical unit of electronic installation can calculate the square type range size of the scope of choosing immediately and this rectangular extent is amplified to maximum and indeformable image size on the screen; (2) intuition: the user only need promptly represent to be exactly that desire is amplified this local image with two fingers by in two corners of the local image of wanting to watch, and need not move outward with two sensings again and reach purpose; (3) local image of desiring to watch is presented at screen centre (display surface geometric center), and can askewly not go to the next door.
The quantity of touching a little in the said method is not limited to 2, illustrates now in 3 situations of touching a little, determines the method for this rectangular extent, sees also Fig. 4 A～Fig. 4 D.
In Fig. 4 A, show " acer " image on the Touch Screen 40.
During 3 positional informations of touching a little, according to this positional information, decision and these 3 contacted these rectangular extent of inner edge of touching a little are shown in Fig. 4 B on receiving this Touch Screen.
3 situations of touching a little, according to 3 position configuration of touching a little, might have 1 and touch a little and contact with other 2 lines that touch a little, perhaps any touches other 2 lines that touch a little of a little all getting along well and contacts.
If these 3 in touching a little wantonly 1 touch a little and do not contact (shown in Fig. 4 B) with other 2 lines that touch a little; Then from these 3 are touched a little, choosing one touches a little; And touch a summit as this rectangular extent with this that is selected; 2 that are not selected in touching a little with these 3 again this touch some a horizontal sides and a vertical edges of this rectangular extent of definition, continue again according to this summit, this horizontal sides, reach this vertical edges, determine this rectangular extent.Above-mentioned be selected this touch a little and be: touching with this that is selected a little is initial point 4 quadrants that draw, and 2 of these that then is not selected touch the same quadrant that a little all is arranged in these 4 quadrants.Referring to Fig. 5, be initial point 4 quadrants that draw to touch a little 1, then touch a little 2 and touch a little 3 and all be positioned at same quadrant (the 1st quadrant); To touch a little 2 is initial point 4 quadrants that draw, and then touches a little 1 and is positioned at the 3rd quadrant, touches a little 3 and is positioned at the 4th quadrant; To touch a little 3 is initial point 4 quadrants that draw, and then touches a little 2 and is positioned at the 2nd quadrant, touches a little 1 and is positioned at the 3rd quadrant.Therefore, choose and touch a little 1 summit as rectangular extent, so that the tangent horizontal line of 2 inner edges is the horizontal sides of this rectangular extent with touching a little, and so that 3 the tangent perpendicular line of inner edge is the vertical edges of this rectangular extent with touching a little.
3 situations of touching a little; If not shown in Fig. 4 B " 3 in touching a little wantonly 1 touch a little do not contact with other 2 lines that touch a little "; But there is 1 to touch a little and other 2 situations that the line that touches a little contacts; Then not to determine rectangular extent, but determine rectangular extent with the mode shown in Fig. 6 A-Fig. 6 C with mode shown in Figure 5.
Referring to Fig. 6 A; If Touch Screen has been sensed 3 and has been touched a little; And certain a bit (in this example for touching a little 2) touch other 2 touch point (in this example for touch a little 1 and touch a little 3) in the area of edge line; Representative is touched a little and 2 can not be had influence on the size of drawing the square type, touches a little 2 in this image amplification process, in order to assist the geometric center that determines magnified image.
In the case, then with above-mentioned touch in addition 2 touch a little line this to touch a little 2 be central point, with above-mentioned in addition 2 touch in the point (touch a little 1 and 3), with this central point (touch a little 2) apart from being a summit of this rectangular extent than person far away.In this example, touch a little 2 far, so be the summit of this rectangular extent (shown in Fig. 6 B) to touch a little 1 for touching a little 1 distance.Continue; Determine this rectangular extent according to this central point (touch a little 2) and this summit (touch a little 1); And calculate this image that this rectangular extent comprised is amplified and indeformable maximum amplification times yield on this viewing area, this rectangular extent is amplified and put middle demonstration (shown in Fig. 6 C) according to this maximum amplification times yield.
The present invention is identical with traditional magnified image method, and Fig. 7 is according to the method for magnified image on Touch Screen of the embodiment of the invention and the key diagram of the traditional compatible application of magnified image method.
Among the step S70, show image on the display surface of a Touch Screen.
Among the step S71, be received at least 2 positional informations of touching a little on this Touch Screen.
In step S72, when on screen, pushing, the central processing unit of electronic installation waits a schedule time (for example 0.1 second) earlier when two fingers (or three fingers), wouldn't computing and demonstration amplified images.Right here waiting is in the time, if user's desire adopts the function of traditional multi-point touch image-zooming.That is; If the user will use traditional multi-point touch image-zooming function; Must in a bit of time that finger presses down, will point outwards or move inward the action (step S721) of towing, if user's finger inwardly towing move, then carry out traditional program S720.Program S720 comprises step S721, S723 and S725.In step S723, image is dwindled demonstration along the inside amplitude of finger; If user's finger outwards towing moves, then in step S725, with image along the outside amplitude enlarged and displayed of finger.If in this waits the time, the two finger that the user will not push (or three fingers), is outside or move inward towing, then carries out step S73.
The step S23 of step S73～step S79 and above-mentioned Fig. 3～step S29 is identical, repeats no more at this.That is, with the rectangular extent on these at least 2 these Touch Screens of positional information decision that touch a little; According to the length of the viewing area of this Touch Screen and the length and the width of width and this rectangular extent, decision is amplified the image that this rectangular extent comprised and indeformable maximum amplification times yield on this viewing area; According to this maximum amplification times yield this image in this rectangular extent is amplified, and this image in this rectangular extent after will amplifying is shown in the central authorities of this viewing area.
Though the present invention discloses as above with preferred embodiment; Right its is not that those skilled in the art is under the future that does not break away from the spirit and scope of the present invention in order to qualification the present invention; Can do some changes and retouching, so protection scope of the present invention is to be as the criterion with claim of the present invention.
Claims (16)
1. the method for a magnified image on Touch Screen, it comprises:
Be received at least 2 positional informations of touching a little on the Touch Screen;
With the rectangular extent on these at least 2 these Touch Screens of positional information decision that touch a little;
According to the length of the viewing area of this Touch Screen and the length and the width of width and this rectangular extent, decision is amplified the image that this rectangular extent comprised and indeformable maximum amplification times yield on this viewing area;
According to this maximum amplification times yield this image in this rectangular extent is amplified, and this image in this rectangular extent after will amplifying is shown in the central authorities of this viewing area.
2. as claimed in claim 1 on Touch Screen the method for magnified image, further show a frame of this rectangular extent in this viewing area.
3. as claimed in claim 1 on Touch Screen the method for magnified image, judge that further this touches number a little.
4. as claimed in claim 3 on Touch Screen the method for magnified image, it comprises:
When judging that this touches a little number when being 2, is received in these 2 positional informations of touching a little on the Touch Screen;
The shortest line between touching a little according to this these 2 of positional information decision;
According to this shortest line, determine this rectangular extent, wherein this shortest line is a diagonal line of this rectangular extent.
5. as claimed in claim 3 on Touch Screen the method for magnified image, it comprises:
When judging that this touches a little number when being 3, is received in these 3 positional informations of touching a little on the Touch Screen;
According to this positional information, decision and these 3 contacted these rectangular extent of inner edge of touching a little.
6. as claimed in claim 5 on Touch Screen the method for magnified image, wherein above-mentioned decision and these 3 steps of touching contacted this rectangular extent of inner edge a little also comprise:
If these 3 in touching a little wantonly 1 touch a little and all do not contact with other 2 lines that touch a little, then from these 3 are touched a little, choose one and touch a little, and touch a summit as this rectangular extent with this that is selected;
2 that are not selected in touching a little with these 3 this touch a horizontal sides and a vertical edges of this rectangular extent of definition;
According to this summit, this horizontal sides, and this vertical edges, determine this rectangular extent.
7. as claimed in claim 6 on Touch Screen the method for magnified image; Wherein above-mentioned be selected this touch a little and be: touching with this that is selected a little is initial point 4 quadrants that draw, and 2 of these that then is not selected touch the same quadrant that a little all is arranged in these 4 quadrants.
8. as claimed in claim 5 on Touch Screen the method for magnified image; If these 3 in touching a little wantonly 1 touch a little and contact with other 2 lines that touch a little; Then with above-mentioned touch in addition 2 touch a little line this to touch a little be central point; With above-mentioned in addition 2 touch a little, person far away is a summit of this rectangular extent with this central point distance, and determine this rectangular extent according to this central point and this summit.
9. electronic installation, it comprises:
One Touch Screen, it comprises a viewing area;
One processor; Be received at least 2 positional informations of touching a little on this viewing area of this Touch Screen; Determine a rectangular extent with these at least 2 positional informations of touching a little; According to the length of this viewing area of this Touch Screen and the length and the width of width and this rectangular extent, decision is amplified the image that this rectangular extent comprised and indeformable maximum amplification times yield on this viewing area, according to this maximum amplification times yield this rectangular extent is amplified; And control this Touch Screen, make the central authorities that this image in this rectangular extent are shown in this viewing area.
10. electronic installation as claimed in claim 9, this processor are further controlled this Touch Screen so that this Touch Screen shows a frame of this rectangular extent in this viewing area.
11. electronic installation as claimed in claim 9, this processor judge that further this touches number a little.
12. electronic installation as claimed in claim 11; This processor is when judging that this touches a little number when being 2; Be received in these 2 positional informations of touching a little on the Touch Screen, the shortest line between touching a little according to these 2 of this positional information decisions is according to this shortest line; Determine this rectangular extent, wherein this shortest line is a diagonal line of this rectangular extent.
13. electronic installation as claimed in claim 11; This processor is when judging that this touches a little number when being 3; Be received in these 3 positional informations of touching a little on the Touch Screen, according to this positional information, decision and these 3 contacted these rectangular extent of inner edge of touching a little.
14. electronic installation as claimed in claim 13, wherein this processor is further carried out follow procedure to determine and these 3 contacted these rectangular extent of inner edge of touching a little:
If these 3 in touching a little wantonly 1 touch a little and do not contact with other 2 lines that touch a little, then from these 3 are touched a little, choose one and touch a little, and touch a summit as this rectangular extent with this that is selected;
2 that are not selected in touching a little with these 3 this touch a horizontal sides and a vertical edges of this rectangular extent of definition;
According to this summit, this horizontal sides, and this vertical edges, determine this rectangular extent.
15. electronic installation as claimed in claim 14, wherein above-mentioned be selected this touch a little and be: touching with this that is selected a little is initial point 4 quadrants that draw, and 2 of these that then is not selected touch the same quadrant that a little all is arranged in these 4 quadrants.
16. electronic installation as claimed in claim 13; If these 3 in touching a little wantonly 1 touch a little and contact with other 2 lines that touch a little; Then with above-mentioned touch in addition 2 touch a little line this to touch a little be central point; With above-mentioned in addition 2 touch a little, person far away is a summit of this rectangular extent with this central point distance, and determine this rectangular extent according to this central point and this summit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101402003A CN102799345A (en) | 2011-05-27 | 2011-05-27 | Method for magnifying image on touch screen and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101402003A CN102799345A (en) | 2011-05-27 | 2011-05-27 | Method for magnifying image on touch screen and electronic device |
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| CN102799345A true CN102799345A (en) | 2012-11-28 |
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| CN2011101402003A Pending CN102799345A (en) | 2011-05-27 | 2011-05-27 | Method for magnifying image on touch screen and electronic device |
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Application publication date: 20121128 |