作业帮matlab中如何对一个三维图形进行截面?clearxm=2.5;ym=2.5;x=-xm:0.1:xm;y=-ym:0.1:ym;x=linspace(-xm,xm,40);y=linspace(-ym,ym,40);[X,Y]=meshgrid(x,y);R1=sqrt((X+1).^2+Y.^2);R2=sqrt((X-1).^2+Y.^2);U=1./R1-1./R2;mesh(x,y,U)我想对下面图形
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![matlab中如何对一个三维图形进行截面?clearxm=2.5;ym=2.5;x=-xm:0.1:xm;y=-ym:0.1:ym;x=linspace(-xm,xm,40);y=linspace(-ym,ym,40);[X,Y]=meshgrid(x,y);R1=sqrt((X+1).^2+Y.^2);R2=sqrt((X-1).^2+Y.^2);U=1./R1-1./R2;mesh(x,y,U)我想对下面图形](/uploads/image/z/15208249-49-9.jpg?t=matlab%E4%B8%AD%E5%A6%82%E4%BD%95%E5%AF%B9%E4%B8%80%E4%B8%AA%E4%B8%89%E7%BB%B4%E5%9B%BE%E5%BD%A2%E8%BF%9B%E8%A1%8C%E6%88%AA%E9%9D%A2%3Fclearxm%3D2.5%3Bym%3D2.5%3Bx%3D-xm%3A0.1%3Axm%3By%3D-ym%3A0.1%3Aym%3Bx%3Dlinspace%28-xm%2Cxm%2C40%29%3By%3Dlinspace%28-ym%2Cym%2C40%29%3B%5BX%2CY%5D%3Dmeshgrid%28x%2Cy%29%3BR1%3Dsqrt%28%28X%2B1%29.%5E2%2BY.%5E2%29%3BR2%3Dsqrt%28%28X-1%29.%5E2%2BY.%5E2%29%3BU%3D1.%2FR1-1.%2FR2%3Bmesh%28x%2Cy%2CU%29%E6%88%91%E6%83%B3%E5%AF%B9%E4%B8%8B%E9%9D%A2%E5%9B%BE%E5%BD%A2)
matlab中如何对一个三维图形进行截面?clearxm=2.5;ym=2.5;x=-xm:0.1:xm;y=-ym:0.1:ym;x=linspace(-xm,xm,40);y=linspace(-ym,ym,40);[X,Y]=meshgrid(x,y);R1=sqrt((X+1).^2+Y.^2);R2=sqrt((X-1).^2+Y.^2);U=1./R1-1./R2;mesh(x,y,U)我想对下面图形
matlab中如何对一个三维图形进行截面?
clear
xm=2.5;ym=2.5;
x=-xm:0.1:xm;y=-ym:0.1:ym;
x=linspace(-xm,xm,40);y=linspace(-ym,ym,40);
[X,Y]=meshgrid(x,y);
R1=sqrt((X+1).^2+Y.^2);R2=sqrt((X-1).^2+Y.^2);
U=1./R1-1./R2;
mesh(x,y,U)
我想对下面图形的一个剖面,比如x+y=0这个面的截面 该如何修改程序?
matlab中如何对一个三维图形进行截面?clearxm=2.5;ym=2.5;x=-xm:0.1:xm;y=-ym:0.1:ym;x=linspace(-xm,xm,40);y=linspace(-ym,ym,40);[X,Y]=meshgrid(x,y);R1=sqrt((X+1).^2+Y.^2);R2=sqrt((X-1).^2+Y.^2);U=1./R1-1./R2;mesh(x,y,U)我想对下面图形
因为数据是离散的,你的截面上的点不一定都有定义,这涉及到插值的问题.
建议用多维插值.你可以定义一些点（比如用你提到的meshgrid()）来对你要的截面进行采样,再通过griddata()或类似功能的函数对原函数插值得到在这些采样点上的值