The study and realization of automatic mesh generation based on electromagnetic simulation of FDTD

In the generating system of electromagnetic mesh, the most crucial technique is to generate the effective and exact mesh. With the AutoCAD as the graphics support platform, this thesis develops software of auto dissection with three-dimensional mesh for the finite-difference time-domain electromagnetic simulation, applying ObjectARX of AutoCAD, combined with the graphic file of AutoCAD. The method adopted is an effective algorithm to generate mesh. Within the drawing area of AutoCAD, the simulation structure is drawn and the graphics is meshed by the ObjectARX program. The mesh coordinates in Cartesian coordinates together with the one-dimensional, two-dimensional and three-dimensional mesh graphics is not only exact but also quick and effective.