www.gusucode.com > 这是我的一个实验设计,利用MATLAB的GUIDE图形用户界面工具,实现一个计算器,完成实数的加、减、乘、除、开方、取对数和求幂次。里面有实验报告和代码 > 这是我的一个实验设计,利用MATLAB的GUIDE图形用户界面工具,实现一个计算器,完成实数的加、减、乘、除、开方、取对数和求幂次。里面有实验报告和代码/work/2.m
hold on %% Earth's Topography % MATLAB can be used to create different kinds of maps. Here, we show ways of % representing the topography of the Earth. The topography data used in this % demo is available from the National Geophysical Data Center, NOAA US % Department of Commerce under data announcement 88-MGG-02. % % Copyright 1984-2002 The MathWorks, Inc. % $Revision: 5.17 $ $Date: 2002/04/09 17:18:08 $ %% The data % The data is stored in a MAT file called topo.mat. The variable topo contains % the altitude data for the Earth. topomap1 contains the colormap for the % altitude. load('topo.mat','topo','topomap1'); whos topo topomap1 %% Contour plot % CONTOUR creates a contour plot of the Earth from this data. Here, we are % producing a contour based on points on the map that have zero altitude. What % you thus see is an outline of the continents. contour(0:359,-89:90,topo,[0 0],'b') axis equal box on set(gca,'XLim',[0 360],'YLim',[-90 90], ... 'XTick',[0 60 120 180 240 300 360], ... 'Ytick',[-90 -60 -30 0 30 60 90]); %% 2-D Image plot % IMAGE creates a 2-D image plot from the data in topo and topomap1. You can % see the elevation information in this figure. Here, altitudes correspond to % shades of green, while depths (below sea level) correspond to shades of blue. hold on image([0 360],[-90 90],topo,'CDataMapping', 'scaled'); colormap(topomap1); %% 3-D plot % The globe! % % The SPHERE function returns x,y,z data that are points on the surface of a % sphere (50 points in this case). Observe the altitude data in topo mapped % onto the coordinates of the sphere contained in x, y and z. Two light sources % illuminate the globe. [x,y,z] = sphere(50); cla reset axis square off props.AmbientStrength = 0.1; props.DiffuseStrength = 1; props.SpecularColorReflectance = .5; props.SpecularExponent = 20; props.SpecularStrength = 1; props.FaceColor= 'texture'; props.EdgeColor = 'none'; props.FaceLighting = 'phong'; props.Cdata = topo; surface(x,y,z,props); light('position',[-1 0 1]); light('position',[-1.5 0.5 -0.5], 'color', [.6 .2 .2]); view(3)