Touch control inflection point correction method and device and touch screen

Abstract

The invention provides a touch control inflection point correction method and device and a touch screen. The touch control inflection point correction method and device and the touch screen have the advantages that a target touch control point, located at an inflection point, in various touch control points is determined, a correction point is determined according to the position coordinates of the target touch control point, a previous touch control point and a following touch control point, the position coordinates of inner contour points corresponding to the target touch control point are corrected to the inner side of a touch control inflection point according to the position coordinates of the correction point, and outer contour points corresponding to the target touch control point are further corrected; due to the fact that the inner contour points are located on the inner side of the inflection point and the out contour points are located on the outer side of the inflection point, intersection of the inner contour points and the outer contour points can be avoided during inner contour point connection and outer contour point connection, inner contour point intersection or outer contour point intersection can be avoided at the same time, and accordingly a small angle phenomenon, which does not conform to a touch control trajectory, at the inflection point is avoided, andreal touch control writing is achieved.

Description

technical field [0001] The present disclosure relates to the technical field of touch electronic whiteboards, in particular to a method and device for correcting touch inflection points, and a touch screen. Background technique [0002] The interactive touch all-in-one machine can perfectly integrate the touch screen, LCD screen and the host, and realize the information interaction between the user and the computer through touch operation. As the main application of the interactive touch all-in-one machine, the electronic whiteboard can realize the input function of interactive information through touch writing operation. At present, in order to overcome the defect of font distortion in the writing mode of the hard pen, the writing mode of the electronic whiteboard usually adopts the writing mode of the soft pen. [0003] The existing soft pen effect implementation scheme usually collects multiple touch points first, then calculates the position of the contour points corres...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a touch inflection point correction method, device, and touch screen to solve th

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