Based on the fractal theory,a new method of automatic generalization ofmap polygons is proposed in this paper,which can automatically generalize the mappolygons according to the distribution characters and shape features themself.

This paper introduces a superposition method of the cadastral parcel which based on coordinate conversion datum,this method is a effective way which improves positional precision and reduces the parcel area error.

An algorithm for the reproduction patterns recognition in the cellular automata;

Hexagon pattern and stripe pattern in dielectric barrier discharges in Argon;

Experimental investigation of square superlattice pattern formation in a dielectric barrier discharge;

Based on dynamic change update pattern,polygon characteristic and polygon object update model during the land use mapping,the dynamic change technique is proposed incorporating the GIS spatial analysis function.