代码如下所示：
% 绘制地球仪，并标出我们的位置
cla reset;load topo;
[x y z] = sphere(45);
s = surface(x,y,z,'FaceColor','texturemap','CData',topo);
colormap(topomap1);
% Brighten the colormap for better annotation visibility:
brighten(.6)
% Create and arrange the camera and lighting for better visibility:
% campos([1.3239 -14.4250 9.4954]);
campos([0 0 0]);
camlight;
lighting gouraud;
axis off vis3d;
% Set the x- and y-coordinates of the textarrow object:
x = [0.7698 0.5851];
y = [0.3593 0.5492];
% Create the textarrow object:
txtar = annotation('textarrow',x,y,'String','This is China.','color','red','FontSize',14);
运行后的结果图
代码如下：
%绘制地球仪
clear;
figure
grs80=almanac('earth','grs80');
ax=axesm('globe','Geoid',grs80,'Grid','on','GLineStyle','-','Gcolor','yellow');
set(ax,'Position',[0 0 1 1]);
view(3);
axis equal off vis3d;
set(gcf,'Renderer','opengl');
load topo
geoshow(topo,topolegend,'DisplayType','texturemap');
demcmap(topo);
运行结果如图所示
