i_tmp=int32((x(i)-minx)/xfd)+1;
　　j_tmp=int32((y(i)-miny)/yfd)+1;
　　z_tmp=int32((z(i)-minz)/zfd)+1;
　　cntxy=tjxy(i_tmp,j_tmp );
　　 cntxz=tjxz(i_tmp,z_tmp );
　　 cntyz=tjyz(j_tmp,z_tmp );
　　 cntxyz=tjxyz(i_tmp,j_tmp,z_tmp );
　　tjxy(i_tmp,j_tmp )=cntxy+1;
　　　　tjxz(i_tmp,z_tmp )=cntxz+1;
　　　　　　tjyz(j_tmp,z_tmp )=cntyz+1;
　　　　　　tjxyz(i_tmp,j_tmp,z_tmp )=cntxyz+1;

求三维数据的空间概率分布并进行概率图三维显示(Spatial probability distribution of 3D data and 3D display of probability map)