Afterward,according to theory of solid analytic geometry and interference of orthographic projections of the two cuboids on coordinate faces,position relation of no interfere for two cuboids in 3D space is divided into three possible cases,and using 2D-nofit polygon the corresponding judgment condition is given out fo.

Dynamic and static No Fit Boundary algorithm for ellipse-ellipse;

In this paper,a method about contour extraction of regular targets in images is proposed,which is based on an improved rectangle fitting method and a polygon fitting method.

In the process of identification,the extraction and the outline of the polygon fitting algorithm are used to automatically search for images to identify and track targets.

In order to solve the problem,that is,the traditional methods of polygonal fitting based on mergence are very sensitive to the "burr" at the boundary,and the area encircled by the contour and the fitting polygon is hard to be controlled,a new drawing method for the arrangement of the leather image contour is proposed.

A simple and highly efficient polygonal fitting arithmetic is inroduced,and the arithmetic can avoid repeating calculation during traveling object image boundary data and all polygonal fitting points can be computed without the method of recursion call,and benefits to computer image realtime process and online test.

This paper presents an polygonal fitting method to image contour based on mergence.

Urban polygon aggregation algorithms based on delaunay trigonometry network;