Method and system for controlling smooth rotation of multi-dial pointer on same interface

Abstract

The invention discloses a method and system for controlling the smooth rotation of a multi-dial pointer on the same interface. The method for controlling the smooth rotation of the multi-dial pointeron the same interface includes the steps that a quadratic function of the maximum measuring range angle and corresponding rotation time and a quadratic function of a time point and a pointer rotationposition corresponding to the time point are constructed, the rotation time corresponding to an actually required rotation angle and the total refreshing frequency are obtained through calculation, and then whether the pointer moves to a target position or not can be determined by judging pointer refreshing frequency and the total refreshing frequency; when the pointer does not move to the targetposition, a required rotation angle of the pointer during each time of refreshing is calculated through nesting of the quadratic functions to control the pointer, so that the rotation process of the pointer changes like a quadratic function curve. The method is ingenious in design and simple, and the characteristic that each quadratic function itself is a smooth curve can be fully utilized so thatthe pointer can be smoothly rotated, and the problems that the rotation process of the pointer cannot be displayed due to direct jump, the user experience is poor and the visibility is poor are avoided.

Description

technical field [0001] The invention relates to the field of instrument display, in particular to a method and system for controlling smooth rotation of multi-dial pointers on the same interface. Background technique [0002] The display is a display terminal of a data link system device, which can display the position, orientation, speed and height of the device, as well as the surrounding equipment with the same device carrier relative to the device. The dial pointer in the existing liquid crystal display is based on Externally received data to show pointing position. [0003] When the pointer rotates from one position to another, when smoothing is not performed, the display is that the pointer is displayed at the next position instantly, and the position of the pointer can be seen on the display, but the pointer jumps immediately, making the screen look It looks stiff, and it is impossible to distinguish whether the pointer rotates clockwise or counterclockwise to the ne...

AI Technical Summary

Problems solved by technology

[0003] When the pointer rotates from one position to another, when smoothing is not performed, the display is that the pointer is displayed at the next position instantly, and the position of the pointer can be seen on the display, but the pointer jumps immediately, making the screen look It looks stiff, and it is impossible to distinguish whether the pointer rotates clockwise or counterclockwise to the next position. The display of the rotation process is not clear, especially for some instruments that need to represent different results through the direction of the pointer rotation. more important

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