Unlock instant, AI-driven research and patent intelligence for your innovation.

User-controllable two-dimensional shape occlusion processing method

A two-dimensional shape, occlusion processing technology, applied in image data processing, animation production, instruments, etc., can solve the problems of multi-user manual interaction, low occlusion processing efficiency, etc., and achieve accurate occlusion processing.

Active Publication Date: 2016-08-17
ZHEJIANG GONGSHANG UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies that the occlusion processing method in the prior art requires a large amount of user manual interaction, the occlusion processing is inefficient and is only suitable for occlusion processing on closed curves, and provides an efficient and A user-controllable 2D shape occlusion method that accurately implements occlusion processing for different parts of a 2D shape

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • User-controllable two-dimensional shape occlusion processing method
  • User-controllable two-dimensional shape occlusion processing method
  • User-controllable two-dimensional shape occlusion processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] Such as Figure 4 The illustrated embodiment is a user-controllable two-dimensional shape occlusion processing method. Since each input curve may be a plane spline curve or a polygon, in order to facilitate the user to specify the occlusion relationship between the curves, the computer first draws Such as figure 1 All of the curves shown.

[0042] And each curve is uniformly discretized into a polygonal representation; when the curve is a closed curve, several discrete points are taken on the curve, and adjacent discrete points are connected by straight lines; when the curve is an open curve, from one end of the curve to the curve The other end takes a number of discrete points with gradually increasing numbers in sequence, and connects the adjacent points with numbers sequentially by a straight line according to the numbering sequence...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a user-controllable two dimensional shape occlusion handling method. According to the invention, a user is allowed to set the occlusion relationship between any two open curves or closed curves and an occluded part above a curve, and finally a small amount of user interaction is needed to realize occlusion handling between the curves. The method is suitable for carrying out occlusion handling on the open curves and the closed curves. The method provided by the invention has the characteristic of accurate and efficient occlusion handling.

Description

technical field [0001] The present invention relates to the technical field of two-dimensional shape display, in particular to a user-controllable two-dimensional shape shading method that can efficiently and accurately realize shading processing of different parts on a two-dimensional shape. Background technique [0002] In application fields such as computer two-dimensional vector animation, a two-dimensional shape is generally used to represent a two-dimensional character. Usually, a two-dimensional shape is composed of multiple planar curves, which can be closed curves or open curves, and each curve corresponds to a feature of the character. To display a 2D character, simply draw the curves in the corresponding 2D shape one by one. However, simply drawing each curve will produce incorrect display results (such as figure 1 ). Therefore, it is necessary to perform occlusion processing on the curves in the shape, that is, calculate the part of each curve that is occluded...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06T13/80
Inventor 杨文武
Owner ZHEJIANG GONGSHANG UNIVERSITY