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A method of dynamic merging of strokes and lines based on drawing timing

A line and timing technology, applied in the direction of drawing from basic elements, generating 2D images, instruments, etc., to achieve the effect of improving efficiency

Active Publication Date: 2022-06-21
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the deficiencies of the existing methods for merging strokes and lines, the present invention provides a method for dynamically merging strokes and lines based on drawing time sequence using computer technology, which can efficiently and accurately complete the simplification of complex line drawing

Method used

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  • A method of dynamic merging of strokes and lines based on drawing timing
  • A method of dynamic merging of strokes and lines based on drawing timing
  • A method of dynamic merging of strokes and lines based on drawing timing

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Embodiment Construction

[0019] Referring to the drawings, for the n lines that have been input, it is defined as S={S 1 ,S 2 ,...,S n}; Define the m lines L={L after merging 1 ,L 2 ,...,L m}. D s (S i ,S j ) represents the line S i with S j Spatial distance between; Hausdorff (S i ,S j ) to calculate the line S i on all points to S j The maximum value of the shortest distance, T is the spatial distance threshold, and further illustrates the present invention:

[0020] Step 1, for a newly input arbitrary line S n+1 , calculate it with the previous input line S n the spatial distance D s (S n ,S n+1 )=Hausdorff(S n ,S n+1 ).

[0021] Step 2, if D s (S n ,S n+1 ) s (L j ,S n+1 ) to calculate L j with S n+1 the spatial distance, otherwise the S n+1 as the new merged line L m+1 .

[0022] Step 3, if D s (L j ,S n+1 ) n+1 with L j and update L j ; otherwise S n+1 as the new merged line L m+1 .

[0023] Further, in step 3, the line S n+1 with L j The merger mainly ha...

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Abstract

A dynamic merging method of strokes and lines based on drawing sequence, which can quickly and accurately combine many strokes into a small number of strokes and lines by using the sequence of strokes, and retain the main painting content of the original picture. This method proposes a dynamic The method of merging, for any newly drawn line, mainly includes the following steps: first, calculate the spatial distance between the new line and the previous input line; secondly, if the spatial distance is greater than a given threshold, use the new line as a new merged line, otherwise calculate the spatial distance between the new line and the previous merged line; then, if the spatial distance between the new line and the previous merged line is greater than a given threshold, use the new line as a new merged line, otherwise merge the new line into the previous A merged line.

Description

technical field [0001] The invention relates to a method for dynamically combining strokes and lines based on the drawing sequence using computer technology, which can retain the artist's creative intention and automatically and accurately complete the simplified work of complex line drawing. Background technique [0002] As a simple and guiding form of expression, line drawing is widely used in the field of industrial design and art creation, and is loved by the majority of art creators and designers. Compared with the line drawing drawn by pen and paper, the painter records and transmits the information of each stroke to the computer with the help of the digital tablet, which can more completely retain the intention expressed by the painter and facilitate the painter to modify and reuse the line drawing. . [0003] In the process of drawing line drawings, painters often outline the parts that are difficult to draw many times, resulting in a large number of overlapping lin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/20G06V10/762G06V10/764
CPCG06T11/203G06F18/23G06F18/24
Inventor 陈佳舟杜孟奇秦绪佳
Owner ZHEJIANG UNIV OF TECH
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