CN115185400A - Touch positioning method, device, electronic device and storage medium - Google Patents

Abstract

Embodiments of the present invention relate to the technical field of touch control, and disclose a touch positioning method, an apparatus, an electronic device, and a storage medium. A touch positioning method, comprising: determining a target touch point from the touch points, the target touch point being located in a curved edge area of a touch screen; in a polar coordinate system, determining a polar angle and a polar angle of the target touch point The polar diameter is adjusted to obtain the positioning result of the target touch point; the target touch point before adjustment is closer to the edge of the curved edge area than the target touch point after adjustment. Realize the correction of touch points located in the curved edge area of the touch screen, so that the curved edge area of the touch screen can also be covered by the touch positioning, thereby significantly improving the retraction phenomenon and bending of the touch screen with the curved edge area. Phenomenon.

Description

Touch positioning method, device, electronic device and storage medium

technical field

Embodiments of the present invention relate to the field of touch technology, and in particular, to a touch positioning method, an apparatus, an electronic device, and a storage medium.

Background technique

When the user operates in the edge area of the touch screen, since the part of the finger outside the edge cannot be sensed by the sensor, that is, the touch signal corresponding to the part of the finger outside the edge is missing. During point calculation, since the touch signal that should be outside the edge is missing, the position of the touch point will be positioned to a position that is offset inward, and the area on the touch screen that can be positioned by touch no longer covers the entire touch screen. The touch screen is an area smaller than the touch screen formed by concave to the inside of the touch screen, that is, the phenomenon of shrinkage occurs. In order to improve the indentation phenomenon, currently, the touch point is usually translated along the horizontal or vertical direction close to the edge, so that the touch point is positioned to cover the edge area of the touch screen. Taking the touch points A, B, C and D in the edge area 2 of the touch screen 1 shown in FIG. 1 as an example, the touch point A will translate in the vertical upward direction, and the touch point B will Pan along the horizontal right direction, the touch point C will pan in the vertical downward direction, and the touch point D will pan in the horizontal left direction, covering the top, bottom, left, right, and straight edges of the touch screen. area.

However, with the development of touch screen technology, touch screens with curved edges such as circles or ellipses appear, and the above-mentioned ways of improving the indentation cannot improve the touch screens with curved edges such as circles or ellipses. The shrinking phenomenon of the control screen, and there is also a bending phenomenon.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a touch positioning method, device, electronic device and storage medium, so as to realize the correction of touch points located in the curved edge area of the touch screen, so that the curved edge area of the touch screen can also be adjusted. Covered by touch positioning, the retraction and bending of touch screens with curved edge areas are significantly improved.

In order to achieve the above object, an embodiment of the present invention provides a touch positioning method, comprising: determining a target touch point from the touch points, the target touch point being located in a curved edge area of the touch screen; Under the system, the polar angle and polar diameter of the target touch point are adjusted to obtain the positioning result of the target touch point; the target touch point before adjustment is relative to the target touch point after adjustment closer to the edge of the curved edge region.

In order to achieve the above object, an embodiment of the present invention further provides a touch positioning device, comprising: a determination module for determining a target touch point from the touch points, where the target touch point is located on a curve of the touch screen an edge area; an optimization module for adjusting the polar angle and polar diameter of the target touch point in a polar coordinate system to obtain the positioning result of the target touch point; the target touch point before adjustment The edge of the curved edge region is closer to the adjusted target touch point.

To achieve the above object, an embodiment of the present invention further provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; Instructions executed by at least one processor, the instructions being executed by the at least one processor, so that the at least one processor can execute the touch positioning method as described above.

To achieve the above object, embodiments of the present invention further provide a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above-mentioned touch positioning method is implemented.

In the touch positioning method provided by the embodiment of the present invention, for a touch screen with a curved edge area, the touch point located in the curved edge area of the touch screen is used as the target touch point, and then the target touch point is located in the polar coordinate system. The polar angle and polar diameter of the control point are adjusted. Compared with the existing single-dimensional adjustment method of horizontal or vertical translation, the adjustment of the polar angle and polar diameter realizes the adjustment of the target touch point from two dimensions. Adjusted so that the touch positioning position can cover not only the horizontal and vertical directions, but also other directions, forming a coverage area enclosed by a curve instead of a straight area, and the edge of the touch screen with a curved edge area It fits better, and the inward shrinkage phenomenon of the touch screen with a curved edge such as a circle or an ellipse is better improved. In addition, since the touch screen with a curved edge such as a circle or an ellipse lacks the sensing signals generated by the touch sensors arranged in both the horizontal and vertical directions, if it is only adjusted in one direction, the adjusted result is still the same. There is an offset, that is, a bending phenomenon occurs, and the adjustment of the polar angle and the polar diameter makes the adjustment direction more flexible, and it is easier to approach the real position, thereby improving the bending phenomenon.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute limitations of the embodiments, and elements with the same reference numerals in the drawings are denoted as similar elements, Unless otherwise stated, the figures in the accompanying drawings do not constitute a scale limitation.

1 is a schematic diagram of adjusting a touch point by horizontal or vertical translation in the prior art provided in the present invention;

FIG. 2 is a flowchart of a touch positioning method provided in an embodiment of the present invention;

FIG. 3 is a schematic diagram of adjusting a target touch point according to the embodiment shown in FIG. 2 provided by the present invention;

4 is a schematic diagram of an area covered by a touch screen positioning result provided by the present invention when the target touch point is not adjusted;

5 is a schematic diagram of an area covered by a touch screen positioning result after adjusting a target touch point according to the embodiment shown in FIG. 2 provided by the present invention;

6 is a flowchart of a touch positioning method provided in another embodiment of the present invention;

FIG. 7 is a flowchart of a touch positioning method provided in another embodiment of the present invention;

8 is a schematic structural diagram of a touch positioning device provided in another embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an electronic device provided in another embodiment of the present invention.

Detailed ways

It can be known from the background art that there is an urgent need to provide a touch positioning method, so as to better improve the retraction phenomenon and the bending phenomenon of the touch screen whose edge is curved such as a circle or an ellipse.

After analysis, it is found that the reason for the above problem is that the touch screen with a curved edge such as a circle or an ellipse needs to cover the area enclosed by the curve, but the touch positioning position needs to be adjusted in the horizontal or vertical direction. Only an area enclosed by a straight line can be formed, and the two do not fit together. Therefore, they will not be positioned to the edge of part of the touch screen, that is, there is still a shrinkage phenomenon. In addition, since the touch screen with a curved edge such as a circle or an ellipse lacks the sensing signals generated by the touch sensors arranged in both the horizontal and vertical directions, if it is only adjusted in one direction, the adjusted result is still the same. There is an offset, i.e. bending occurs.

To solve the above problem, an embodiment of the present invention provides a touch positioning method, including: determining a target touch point from the touch points, the target touch point being located in a curved edge area of the touch screen; Next, adjust the polar angle and polar diameter of the target touch point to obtain the positioning result of the target touch point; the target touch point before adjustment is more accurate than the target touch point after adjustment near the edge of the curved edge region.

In the touch positioning method provided by the embodiment of the present invention, for a touch screen with a curved edge area, the touch point located in the curved edge area of the touch screen is used as the target touch point, and then the target touch point is located in the polar coordinate system. The polar angle and polar diameter of the control point are adjusted. Compared with the existing single-dimensional adjustment method of horizontal or vertical translation, the adjustment of the polar angle and polar diameter realizes the adjustment of the target touch point from two dimensions. Adjusted so that the touch positioning position can cover not only the horizontal and vertical directions, but also other directions, forming a coverage area enclosed by a curve instead of a straight area, and the edge of the touch screen with a curved edge area It is more fit, and the indentation phenomenon of the touch screen with a curved edge such as a circle or an ellipse is better improved; and because it can be adjusted from different directions, it is easier to approach the real position, and the bending phenomenon is also improved.

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, each embodiment of the present invention will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can appreciate that, in each embodiment of the present invention, many technical details are provided for the reader to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed by the present invention can be realized.

The following divisions of the various embodiments are for the convenience of description, and should not constitute any limitation on the specific implementation of the present invention, and the various embodiments may be combined with each other and referred to each other on the premise of not contradicting each other.

An aspect of the embodiments of the present invention provides a touch positioning method, which is applied to an electronic device having a touch screen and at least a part of the edge of the touch screen is curved. The process is shown in Figure 2, which at least includes the following steps:

Step 201 , determining a target touch point from the touch points, and the target touch point is located in a curved edge area of the touch screen.

In this embodiment, the touch point is an initial position located according to a user's touch operation on the touch screen; the curved edge area is an area on the touch screen that is close to a curved edge, wherein the edge of the touch screen It can all be curved, such as a circular touch screen, or part of it can be curved, and some of it can be straight, such as a touch screen made by fitting fingers, which is curved at the fingertip, and other parts are straight. .

In some embodiments, the pole of the polar coordinate system is the center of the curved edge of the touch screen. For example, when the touch screen is a circular touch screen, the pole of the polar coordinate system is the center of the circular touch screen, and the touch screen When the edge of the curve is an arc, the pole of the polar coordinate system is the point on the symmetry axis of the arc, etc. Therefore, the non-curved edge area of the touch screen may be a circular area on the touch screen with the pole of polar coordinates as the center and the first preset threshold as the radius, and the curved edge area of the touch screen may be on the touch screen Taking the pole of the polar coordinate system as the center of the circle and taking the first preset threshold as the radius outside the circular area. Correspondingly, determining the target touch point from the touch points can be achieved by: detecting whether the touch point is outside the circular area; taking the touch point outside the circular area as the target touch point, Wherein, the implementation manner of detecting whether the touch point is located outside the circular area includes: detecting whether the distance from the touch point to the pole of the polar coordinate system exceeds a first preset threshold, wherein, exceeding the first preset threshold Indicates that the touch point is outside the circular area. At this time, by judging whether the distance from the touch point to the pole of the polar coordinate system is large enough to detect whether the touch point is the target touch point, the detection is simple, the implementation difficulty is low, and the efficiency is high.

In other embodiments, determining the target touch point from the touch points can also be achieved by: determining the intersection of the target straight line and the curved edge of the touch screen, the target straight line passing through the touch point and the pole of the polar coordinate system ; Detecting whether the distance between the touch point and the intersection point exceeds a second preset threshold value; and determining the touch point whose distance from the intersection point does not exceed the second preset threshold value as the target touch point. That is to say, the distance between the touch point and the intersection at the edge of the touch screen is taken as the distance from the touch point to the edge of the touch screen, so that the touch point can be detected by judging whether the distance from the touch point to the edge is small enough Whether it is the target touch point, the detection is more accurate.

Of course, in other embodiments, step 101 can also be implemented in other ways, such as determining the tangent of the curved edge of the touch screen, the tangent satisfies that the connection line between the touch point and the tangent is perpendicular to the tangent, and then the tangent to the corresponding tangent is determined. The touch point whose distance between the tangent points does not exceed the third preset threshold is used as the target touch point, which will not be repeated here.

It should be noted that, in this embodiment, the coordinate representation of the touch point is not limited, which may be a triangle pair, a small square, a double-layer row and column, a single-layer row-column jumper crossing, etc., which are presented based on the sensor on the touch screen. The coordinate representation in the rectangular coordinate system determined by the arrangement method may also be the processed coordinate representation in the polar coordinate system.

Step 202 , in the polar coordinate system, adjust the polar angle and polar diameter of the target touch point to obtain a positioning result of the target touch point; the target touch point before adjustment is closer to the target touch point after adjustment The edge of the curved edge region.

In this embodiment, the target touch point before adjustment is closer to the edge of the curved touch area than the target touch point after adjustment, so that the target touch point is pulled up toward the edge of the touch screen, wherein, The degree of pull-up depends on the adjustment range and can be set flexibly. Then, the position on the touch screen that can be positioned will extend outward and be closer to the edge, and because the adjustment is made from the two dimensions of polar angle and polar diameter, it will be closer to the touch screen than horizontal or vertical adjustment. 3, the target touch point E located in the curved edge area 4 of the touch screen 3 is positioned to E' by adjusting the polar angle and polar diameter, and moves horizontally or vertically relative to the horizontal or vertical movement shown in FIG. 1. , forming an area enclosed by a straight line. The adjustment method shown in Figure 3 takes into account the information of the angle, so it can form an area enclosed by a curve, which fits better with the curved edge of the touch screen and is easier to adjust. Close to the real position, which improves the bending of the touch point. Further, you can refer to Figure 4 and Figure 5 to adjust the area that can be positioned on the touch screen before and after the adjustment. For the circular touch screen shown in the bottom layer of the regular circle, the irregular area inside the regular circle is: The area covered by the positioning result on the touch screen, obviously, the area that can be positioned on the touch screen before adjustment shown in FIG. 4 is smaller than the area that can be positioned on the touch screen after adjustment shown in FIG. 5 , Moreover, it does not fit the circular touch screen, and after adjustment, the area where the circular touch screen can be positioned basically covers the entire circular touch screen, which significantly improves the shrinkage phenomenon.

In some embodiments, the initial representation of the target touch point is a coordinate point in the Cartesian coordinate system. Therefore, in order to be able to adjust in the polar coordinate system, it is also necessary to perform coordinate system conversion, that is, in the polar coordinate system, the target touch point is The polar angle and polar diameter of the control point are adjusted to obtain the positioning result of the target touch point. Adjust the polar angle and polar diameter of the target touch point to obtain the positioning result of the target touch point. Specifically, assuming that in the Cartesian coordinate system, the coordinates of the target touch point are (X0, Y0), and the pole coordinates of the polar coordinate system are (X1, Y1), then the coordinates of the target touch point in the polar coordinate system (θ, ρ), θ=arctan[(Y1-Y0)/(X1-X0)] or θ=arccot[(X1-X0)/(Y1-Y0)], ρ=[(X1-X0) ² +(Y1 -Y0) ² ] ^0.5 , where, when |Y1-Y0|>|X1-X0|, θ=arccot[(X1-X0)/(Y1-Y0), when |Y1-Y0| is less than |X1-X0 |, θ=arctan[(Y1-Y0)/(X1-X0)], in particular, since the center of the polar coordinate system is usually not located in the edge region, it does not appear that Y1-Y0=0 and X1-X0 =0 case.

This embodiment does not limit the specific adjustment methods of the polar angle and the polar diameter. The adjustment may be performed according to a preset adjustment range, or the adjustment range may be determined according to the distance from the target touch point to the edge of the touch screen. The direction of adjustment is determined according to the quadrant where the target touch point is located, which will not be repeated here.

In some embodiments, as shown in FIG. 6 , in the polar coordinate system, the polar angle and polar diameter of the target touch point are adjusted, and after the positioning result of the target touch point is obtained, the touch positioning method further includes:

Step 203 , reporting the positioning result of the target touch point in the polar coordinate system.

In this embodiment, the electronic device processes the positioning result by expressing the coordinates in the polar coordinate system, and can directly report the positioning result obtained by adjusting the target touch point in the polar coordinate system.

In other embodiments, as shown in FIG. 7 , in the polar coordinate system, the polar angle and polar diameter of the target touch point are adjusted, and after obtaining the positioning result of the target touch point, the method further includes:

Step 204: Convert the positioning result in the polar coordinate system from the polar coordinate system to the rectangular coordinate system.

Step 205, reporting the conversion result.

In this embodiment, since the electronic device processes the positioning result based on the representation in the rectangular coordinate system, it is also necessary to perform coordinate system transformation on the positioning result obtained by adjusting the target touch point in the polar coordinate system, so that the electronic device The corresponding parts of the equipment are processed later.

The steps of the above various methods are divided only for the purpose of describing clearly. During implementation, they can be combined into one step or some steps can be split and decomposed into multiple steps. As long as the same logical relationship is included, they are all within the protection scope of this patent. ;Adding insignificant modifications to the algorithm or process or introducing insignificant designs, but not changing the core design of the algorithm and process are all within the scope of protection of this patent.

Another aspect of the embodiments of the present invention further provides a touch positioning device, as shown in FIG. 8 , including:

The determining module 801 is configured to determine a target touch point from the touch points, where the target touch point is located in a curved edge area of the touch screen.

The optimization module 802 is used to adjust the polar angle and polar diameter of the target touch point in the polar coordinate system to obtain the positioning result of the target touch point; the target touch point before adjustment is relative to the adjusted target touch point The point is closer to the edge of the edge area of the curve.

It is not difficult to find that this embodiment is an apparatus embodiment corresponding to the method embodiment, and this embodiment can be implemented in cooperation with the method embodiment. The related technical details mentioned in the method embodiment are still valid in this embodiment, and are not repeated here in order to reduce repetition. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the method embodiments.

It is worth mentioning that all the modules involved in this embodiment are logical modules. In practical applications, a logical unit may be a physical unit, a part of a physical unit, or multiple physical units. A composite implementation of the unit. In addition, in order to highlight the innovative part of the present invention, the unit that is not closely related to solving the technical problem proposed by the present invention is not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

Another aspect of the embodiments of the present invention further provides an electronic device, as shown in FIG. 9 , comprising: at least one processor 901; and a memory 902 connected in communication with the at least one processor 901; wherein the memory 902 stores a Instructions executed by the at least one processor 901, the instructions are executed by the at least one processor 901, so that the at least one processor 901 can execute the touch positioning method described in any of the above method embodiments.

The memory 902 and the processor 901 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 901 and various circuits of the memory 902 together. The bus may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides the interface between the bus and the transceiver. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 901 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 901 .

Processor 901 is responsible for managing the bus and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. The memory 902 may be used to store data used by the processor 901 when performing operations.

Another aspect of the embodiments of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by the processor, the touch positioning method described in any of the above method embodiments is implemented.

That is, those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium and includes several instructions to make a device (which can be It is a single-chip microcomputer, a chip, etc.) or a processor (processor) that executes all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present invention, and in practical applications, various changes can be made in form and details without departing from the spirit and the spirit of the present invention. scope.

Claims (10)

1. A touch positioning method, characterized in that, comprising: determining a target touch point from the touch points, where the target touch point is located in a curved edge area of the touch screen; In the polar coordinate system, the polar angle and polar diameter of the target touch point are adjusted to obtain the positioning result of the target touch point; the target touch point before adjustment is relative to the adjusted target The touch point is closer to the edge of the curved edge region. 2 . The touch positioning method according to claim 1 , wherein the pole of the polar coordinate system is the center of the curved edge of the touch screen; the curved edge area is the center of the touch screen on the touch screen. 3 . The pole of the polar coordinate system is the area outside the circular area with the center of the circle and the radius of the first preset threshold; The determining the target touch point from the touch points includes: Detecting whether the touch point is located outside the circular area; The touch points outside the circular area are used as the target touch points. 3 . The touch positioning method according to claim 2 , wherein the detecting whether the touch point is located outside the circular area comprises: 3 . Detecting whether the distance from the touch point to the pole of the polar coordinate system exceeds the first preset threshold, wherein exceeding the first preset threshold indicates that the touch point is located in the circular area outside. 4 . The touch positioning method according to claim 1 , wherein the determining the target touch point from the touch points comprises: 5 . determining the intersection of the target straight line and the curved edge of the touch screen, the target straight line passing through the touch point and the pole of the polar coordinate system; Detecting whether the distance between the touch point and the intersection exceeds a second preset threshold; The touch point whose distance from the intersection does not exceed the second preset threshold is determined as the target touch point. 5 . The touch positioning method according to claim 1 , wherein the initial representation of the target touch point is a coordinate point in a Cartesian coordinate system; 6 . Under the polar coordinate system, the polar angle and polar diameter of the target touch point are adjusted to obtain the positioning result of the target touch point, including: Converting the target touch point from the rectangular coordinate system to the polar coordinate system to obtain the polar angle and polar diameter of the target touch point; The polar angle and polar diameter of the target touch point are adjusted to obtain the positioning result of the target touch point. 6 . The touch positioning method according to claim 1 , wherein, in a polar coordinate system, the polar angle and polar diameter of the target touch point are adjusted to obtain the desired touch point. 7 . After the positioning result of the target touch point is described, the method further includes: The positioning result of the target touch point in the polar coordinate system is reported. 7 . The touch positioning method according to claim 1 , wherein, in a polar coordinate system, the polar angle and polar diameter of the target touch point are adjusted to obtain the desired touch point. 8 . After the positioning result of the target touch point is described, the method further includes: Converting the positioning result under the polar coordinate system from the polar coordinate system to a rectangular coordinate system; Report the result of the conversion. 8. A touch positioning device, comprising: a determining module, configured to determine a target touch point from the touch points, where the target touch point is located in a curved edge area of the touch screen; The optimization module is used to adjust the polar angle and polar diameter of the target touch point in the polar coordinate system to obtain the positioning result of the target touch point; the target touch point before adjustment is relative to the adjustment The latter target touch point is closer to the edge of the curved edge region. 9. An electronic device, characterized in that, comprising: at least one processor; and, a memory communicatively coupled to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the execution of any of claims 1 to 7 The touch positioning method described above. 10 . A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the touch positioning method according to any one of claims 1 to 7 is implemented. 11 .

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