Fill under lines in plot3

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Meva 2017-3-22

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/331395-fill-under-lines-in-plot3

编辑： Meva 2017-3-23

Screen Shot 2017-03-23 at 12.37.47.png

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Hello,

I need to fill under the Z-data in a plot3. I have below function.

function mmplot3(x,y,z,c,w,b,d)
%MMPLOT3 3-D color-based plot.
%   MMPLOT3(X,Y,Z,C,W,B) or MMPLOT3(X,Y,Z,C,W,B,D), where X, Y, Z and C are
%   4 vectors of the same length, plots a line in 3-space through the points 
%   whose coordinates are the elements of X, Y and Z with colors 
defined by 
%   vector C. W is the width of the line, B is the line brightness while 
%   solid line plot is used, otherwise it's the marker style and D is the
%   indices increment.
x = x(:); y = y(:); z = z(:); c = c(:);
switch b
    case {'.','o','x','+','*','s','d','v','^','<','>','p','h'}
        iNaN=find(isnan(x));
        if isempty(iNaN), iNaN = length(x); end
        i = [1:d:iNaN(1),iNaN(1)];
         x = x(i); y = y(i); z = z(i); c = c(i);
          scatter3(x,y,z,w,c,b)
      otherwise
          plot3(x,y,z,'linestyle','none') % make a blank plot        
          surface([x, x], [y, y], [z, z], ...
              [c, c], 'EdgeColor','flat', 'FaceColor','none', 'linewidth',w, 'EdgeAlpha',b)
  end

Please see attached. The 3d plot I have (on the right hand side attached) is quite is unclear, not like the figure on left hand side.

I need to fill under the Z data with white color.

Also associate each Z-data with each time (X-data) in the plot.

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KSSV 2017-3-23

You have not mentioned inputs....x,y,z

Meva 2017-3-23

编辑：Meva 2017-3-23

在 MATLAB Online 中打开

Screen Shot 2017-03-23 at 12.37.47.png

Thanks KSSV. Please see attached file. On the left hand side there is a clear figure which is I would like to obtain. The figure on the right hand side is what I have obtained. Please ignore the difference between data. I just would like to have the same appearance.

The above code is a nested function. The main m file has

figure(1)
colormap hsv
for kt = 1 : tstep : nr
    mmplot3(t(kt,:), x2(kt,:), p(kt,:), p(kt,:), 1, 0.5)
    hold on
end
%%%%following part is to fill but it does not work!
    vert = [t0 0 p(1,1);t0 0 -0.6;t0 1 -0.6;t0 1 p(1,nc)];
    fac = [1 2 3 4] 
    patch('Vertices',vert,'Faces',fac,...
      'FaceVertexCData',white(1),'FaceColor','flat')

So, in the main code these are

t1 = t0 : dt : tfinal;
x1 = x0 : dx : xfinal;
[x2,t]=meshgrid(x1,t1);
[nr,nc]=size(x2);      
p = zeros(nr,nc);

where

t0=0.1;    
tfinal = 1;
dt = 0.0001;                       % step size    
x0 = 0;
xfinal = 1;
dx = 0.001;                        % step size    
% tstep = 9900;                     % time step for 3D plot
tstep=900;