Extraction of Shape of an Object and Construction of closed Curves using Image Information
Junko Fukuda · 2003
A mesh generating system has been developed in order to prepare large amounts of input data which are needed for easy implementation of a finite element analysis. This system consists of a Pre-Mesh Generator, an Automatic Mesh Generator and a Mesh Modifier. Pre-Mesh Generator produces the shape and sub-block information as input data of Automatic Mesh Generator by carrying out various image processing with respect to the image information of the drawing input using a scanner. Automatic Mesh Generator generates mesh of triangular elements in the arbitrarily shaped and multiple connected planar domain using minimum necessary information. This generator has 3 methods of mesh generation for each sub-block. Any of them can be selected automatically according to the external form of sub-block or the state of domain. Mesh Modifier projects and modifies the pattern of generated mesh by Automatic Mesh Generator as required.