粗略绘北京经纬度海拔地形图【MATLAB】

部分北京点位数据.jpg

参考上述数据，粗略绘制北京市三维地形图

clc
clf
clear
close all
%%
data = [116.37 40.08 28.6
    116.17 39.59 45.8
    115.58 40.27 487.9
    116.52 40.23 71.8
    116.38 40.22 75.7
    117.07 40.39 293.3
    117.07 40.1 32.1
    116.38 39.55 43.3
    116.3 39.57 35.5
    116.13 40.13 76.2
    115.41 39.58 440.3
    116.06 39.56 92.7
    116.28 39.48 31.3
    116.12 39.57 65.6
    116.15 39.52 55.2
    116.21 39.43 37.6
    116.12 39.46 39.2
    115.44 39.44 407.7];
x=data(:,1);y=data(:,2);z=data(:,3);
[X,Y,Z]=griddata(x,y,z,linspace(min(x),max(x))',linspace(min(y),max(y)),'v4');%插值
figure
surf(X,Y,Z)
colorbar

image.png