applying two 2d plots to a 3d plane(the plots are made up of multiple lines)

Hi,

I am trying to apply both of these plots pictured below to a 3d mesh model(i.e. one will take up x side and the other will take up the y side while both of their Y values will applied to Z in the 3d mesh), the issue I am encountering is that these plots are made up of multiple plots and aside from getting each value from each line and checking the counterpart I cannot think of any soloutions. I was hoping to be able to implement it in an equation. Any suggestions or hints in the right direction would be helpful, thanks

PS, here is code 1st figure

    y1 = a1.*x1.^2 + b1.*x1 + c1;

    y2 = a2.*x2.^2 + b2.*x2 + c2;

    figure
    plot(x1, y1,x2, y2)
    hold on
    plot([0 XStartIntercept],[0 0],[XEndIntercept dimensions],[0 0])
    hold off;

and second figure

    j1 = d1.*Yx1.^2 + e1.*Yx1 + f1;
    j2 = d2.*Yx2.^2 + e2.*Yx2 + f2;

    figure
    plot(Yx1, j1,Yx2, j2)
    hold on
    plot([0 YXStartIntercept],[0 0],[YXEndIntercept dimensions],[0 0])
    hold off;

[Stefan Raab]

Maybe the plot3 function will help you. The inputs are the vectors x,y,z. So you can plot it as before, just set the corresponding other vector (x,y) to zero.