matlab中绘制等温线的m文件

代码说明：

clear;close all; fphn=fopen("hunan.txt","r"); hnb=fgetl(fphn); hnmap=fscanf(fphn,"%f %f",[2,59]); % It has 59 rows now.湖南省界经纬度 fclose(fphn); hnmap=hnmap"; xa=hnmap(:,[1]); ya=hnmap(:,[2]); fp=fopen("LATLON57.txt","r"); LL57=fscanf(fp,"%d %f %f",[3,97]); % It has 97 rows now.湖南省97县名称号码，经纬度 fclose(fp); LL57=LL57"; x=LL57(:,[3])/10;