A writing path erasing method and device

Abstract

The invention discloses a method for erasing a writing path. By determining the erasing distance corresponding to the erasing mode selected by the user, the writing path to be erased is processed according to the erasing distance. The distance between the included data points is not greater than the erasing interval; according to the erasing path input by the user and the erasing scheme, the erasing area is determined in the writing path after the supplementary point processing; according to the preset erasing The erasing algorithm erases the erasing area. By adding dots to the area to be erased, the writing path in the area to be erased can be accurately erased in the current erasing mode, effectively improving the erasing accuracy of the electronic whiteboard during the erasing process.

Description

technical field [0001] The invention relates to the field of digital drawing, in particular to a writing path erasing method and equipment. Background technique [0002] The interactive electronic whiteboard can communicate with the computer, connect the electronic whiteboard to the computer, and use the projector to project the content on the computer to the electronic whiteboard screen. With the support of special applications, a large screen, interactive style collaborative meeting or teaching environment. Use a specific positioning pen instead of the mouse to operate on the whiteboard, run any application, edit, annotate, save files, and any operations that can be achieved with the keyboard and mouse on the computer. [0003] Interactive electronic whiteboards are mainly divided into four types according to technical principles: pressure-sensitive electronic whiteboards, electromagnetic electronic whiteboards, infrared electronic whiteboards, and optical electronic whit...

AI Technical Summary

Problems solved by technology

[0006] In view of the problems existing in the background technology, the present invention provides a writing path erasing method, by supplementing the missing data points between adjacent data points in the writing path when erasing the writing path, which solves the problem of The problem that the distance between adjacent data points in the writing path is too large and cannot be erased due to reasons such as writing too fast and inaccurate electronic whiteboard sensing has effectively improved the erasing accuracy of the electronic whiteboard during the erasing process and improved the user's convenience. experience effect

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