A题作图.docx

1、A题作图 图（1）城市整体的地形图Matlab代码： X,Y,Z=griddata(x,y,z,linspace(min(x),max(x),200),linspace(min(y),max(y),200),v4); surf(X,Y,Z); shading interp； title(城市整体地形图); 图（2）城市等高线图Matlab代码： X,Y,Z=griddata(x,y,z,linspace(min(x),max(x),200),linspace(min(y),max(y),200),v4); title(城市整体地形图); figure,contourf(X,Y,Z) title

2、(等高线图); xlabel(X);ylabel(Y); （colormap(gray);）Matlab代码：xi=linspace(min(x),max(x),100); yi=linspace(min(y),max(y),100); xi,yi=meshgrid(xi,yi);zi=griddata(x,y,z,xi,yi); ci=griddata(x,y,c,xi,yi);color=k,r,y,c,b;marker=+,O,口,A,P; figure h=surf(xi,yi,zi); set(h,cdata,ci); colormap hsv title(三维图立体（颜色条表示分类）) xlabel(X) ylabel(Y) colorbar hidden off hold on for i=1:5 loc=c=i; plot3(x(loc),y(loc),z(loc),markeri,markerfacecolor,colori); end ylabel(Y +生活区 O工业区 口山林区 A交通区 P绿地区)；C,h=contourf(X,Y,Z);set(h,ShowText,on,TextStep,get(h,LevelStep)*2)