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1、实用标准文案实验六MATLAB数据可视化一、实验目的掌握MATLAB二维、三维图形绘制，掌握图形属性的设置和图形修饰；掌握图像文件的读取和显示。二、实验内容(1)二维图形绘制。(2)三维曲线和三维曲面绘制。(3)图像文件的读取和显示。三、实验步骤1.二维图形绘制(1)二维图形绘制主要使用函数plot.>>clearall>>x=linspace(0,2*pi,100);>>y1=sin(x);>>plot(x,y1)>>holdon>>y2=cos(x)>>plot(x,y2)(2)函数plot的参数也可以是矩阵。>>clearall>>x=linspace(0,2*pi,
2、100);>>y1=sin(x);>>y2=cos(x);>>A=[y1;y2]';>>B=[x;x]'>>plot(B,A)B=00精彩文档实用标准文案0.06350.06350.12690.12690.19040.19040.25390.25390.31730.31730.38080.38080.44430.44430.50770.50770.57120.57120.63470.63470.69810.69810.76160.76160.82510.82510.88850.88850.95200.95201.01551.01551.07891.07891.14241.1
3、4241.20591.20591.26931.26931.33281.33281.39631.39631.45971.45971.52321.52321.58671.58671.65011.65011.71361.71361.77711.77711.84051.84051.90401.90401.96751.96752.03092.03092.09442.09442.15792.15792.22132.22132.28482.2848精彩文档实用标准文案2.34832.34832.41172.41172.47522.47522.53872.53872.60212.60212
4、.66562.66562.72912.72912.79252.79252.85602.85602.91952.91952.98292.98293.04643.04643.10993.10993.17333.17333.23683.23683.30033.30033.36373.36373.42723.42723.49073.49073.55413.55413.61763.61763.68113.68113.74453.74453.80803.80803.87153.87153.93493.93493.99843.99844.06194.06194.12534.12534.1
5、8884.18884.25234.25234.31574.31574.37924.37924.44274.44274.50614.50614.56964.56964.63314.63314.69654.69654.76004.76004.82354.82354.88694.88694.95044.95045.01395.01395.07735.07735.14085.14085.20435.20435.26775.26775.33125.33125.39475.39475.45815.45815.52165.52165.58515.58515.64855.64855.712
6、05.71205.77555.77555.83895.83895.90245.90245.96595.96596.02936.02936.09286.09286.15636.15636.21976.21976.28326.2832精彩文档实用标准文案(3)选用绘图线性和颜色>>clearall>>polt(x,y1,'g+',x,y2,'r:')>>gridon(4)添加文字标注>>title('正弦曲线和余弦曲线')>>ylabel('幅度')>>xlabel('时间')>>legend('sin(x)','cos(x)')>>gtext('leftarrowsinx'
7、)(5)修改坐标范围。>>axisequal>>axisnormal>>axis([0pi01.5])(6)子图和特殊图形绘制。>>subplot(2,2,1)>>t1=0:0.1:3;>>y1=exp(-t1);>>bar(t1,y1);>>subplot(2,2,2)>>t2=0:0.2:2*pi;精彩文档实用标准文案>>y2=sin(t2);>>stem(t2,y2);>>subplot(2,2,3)>>t3=0:0.1:3;>>y3=t3.^2+1;>>stairs(t3,y3);>>subplot(2,2
