Method for segmenting drawing handwriting by utilizing eraser function

Abstract

The invention discloses a method for segmenting drawing handwriting by utilizing an eraser function, which comprises the following steps: respectively storing a stroke sampling point of each stroke of the drawing handwriting in a plurality of original stroke arrays; using an eraser to erase the drawing handwriting to be segmented, and generating an erasing area according to the erasing path of the eraser and the size of the eraser; according to whether each stroke sampling point of each stroke in each original stroke array is located in an erasing area or not, segmenting each stroke by utilizing the segmentation array and the temporary array, storing the segmented strokes in the segmentation array, and sequentially connecting the stroke sampling points in the segmentation array to generate a new stroke for display; and re-editing the segmented strokes through a selection tool. According to the invention, the erased strokes can be independently moved, zoomed, rotated and the like, the eraser is endowed with more new functions, the algorithm is simple, the number of sampling points is small, the calculation amount is small, and the running speed is high.

Description

Technical field [0001] The present invention relates to a whiteboard or graffiti application drawing handwriting handling technique, and a method involving a method of dividing a drawing slip using a plate function. Background technique [0002] The electronic whiteboard is increasingly applied to the office, where whiteboard or graffiti application provides convenience for fast communication or inspiration creation. [0003] In whiteboard or graffiti applications, it is sometimes necessary to divide the drawing slip, and then move or scale the divided drawing slip. However, existing whiteboards or graffiti applications do not have such functions, similar to such a plate, will directly discard the drawings, and cannot achieve the above needs. [0004] For example: Chinese inventive patent CN104992460B discloses a method of erase the vector handwriting, when detecting an erase operation, save the vector handwriting before the erasure starts, and convert all vector slip to the corr...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a method for dividing the drawing handwriting by using the eraser function, so as to solve the problem that the handwriting divided by erasing cannot be edited again and the speed is slow

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