2维的热度图 imagesc imagesc(x, y, z),x和y分别是横纵坐标,z为值,表示颜色 imagesc(theta,phi,slc); colorbar xlabel(); ylabel(); sta = '3 objects at (θ,φ,r) : (-30,30,1) (0,0,2) (60,-60,0.5)'; str=sprintf(strcat('3D Imaging Slice at :', num2str(d_max*D/N), '(m)', '\n',sta))