MATLAB作图之贝塞尔曲线（beizer）模板程序+效果图

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对于贝塞尔曲线不了解的同学可以点开此链接：http://www.html-js.com/article/1628

声明：程序中的数据可以根据实际情况进行修改

function bezier( vertices )  %BEZIER 绘制Bezier曲线   vertices=[00.1 6.54;4.76    5.19;6.65    4.53;9.51    4.99;12.17   2.21;15.23   6.81;17.35   6.1;19.21   8.89;22.15   4.88;23.46   3.72;27.11   3.21;28.81   2.78;29.87   3.58;30.52   2.28;30.99   2.11;32.01   2.47;33.85   2.26;34.91   1.55;37.5    6;35.71   9.54;33.78   8.68;32.89   10.96;31.51   12.86;30.87   14.86;29.87   17.98;29.11   21.62;27.31   17.98;24.56   18.86;22.23   14.56;19.5    19.68;17.92   30;15.21   41.38;12.18   37.67;8.83    40.54;5.98    34.82;4.8 24.52;1.7 19.89]';Dim=size(vertices,1);%二位或者三维空间  NumPoint=size(vertices,2)-1;%点的个数  t=0:0.001:1;  x=[]; y=[]; z=[];if Dim==2       x=(1-t).^(NumPoint)*vertices(1,1);       y=(1-t).^(NumPoint)*vertices(2,1);    for j=1:NumPoint        w=factorial(NumPoint)/(factorial(j)*factorial(NumPoint-j))*(1-t).^(NumPoint-j).*t.^(j);        x=x+w*vertices(1,j+1);y=y+w*vertices(2,j+1);    end  plot(vertices(1,:),vertices(2,:),'b');  hold on;grid on;  axis tight;    xlabel('X');ylabel('Y');  plot(x,y,'r');  end  if Dim==3      x=(1-t).^(NumPoint)*vertices(1,1);      y=(1-t).^(NumPoint)*vertices(2,1);      z=(1-t).^(NumPoint)*vertices(3,1);   for j=1:NumPoint       w=factorial(NumPoint)/(factorial(j)*factorial(NumPoint-j))*(1-t).^(NumPoint-j).*t.^(j);       x=x+w*vertices(1,j+1);y=y+w*vertices(2,j+1);z=z+w*vertices(3,j+1);   end  plot3(vertices(1,:),vertices(2,:),vertices(3,:),'b');  hold on;grid on;  axis tight;    %axis([0.5,1.5,0.5,1.5,0,0.7]);  xlabel('X');ylabel('Y');zlabel('Z');  plot3(x,y,z,'r');  view(3);  end  end

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