Two Plotting results one at a time like simulation

x=linspace(0,-1.2903,100);
u=deg2rad(7)
rho1 = 1.3;
ha = 2;
for i=1:length(x)
eqn1 = @(rho1, u, x) -rho1*cos(u)-x;
U(i) = fminsearch(@(u)norm(eqn1(rho1,u,x(i))),u);
y(i) = +ha-rho1+rho1*sin(U(i));
Slope(i) =atand(cot(U(i)));
end
% create the figure and an empty plot graphics handles
figure;
hPlot = plot(NaN,NaN);
% set the limits
xlim([min(x) max(x)]);
ylim([min(y) max(y)]);
Ulim([min(U) max(U)]);
% draw the curve
for k=1:length(x)
% update the data
set(hPlot,'XData',x(1:k),'YData',y(1:k),hPlot,'XData',x(1:k),'UData',U(1:k));
% pause for 0.1 seconds
pause(0.1);
end
Hey guys,can someone help me with this? Its not working with 3 variables I want to see x and y plot at a time, at the same time I want to see x and U variable in plot at a time,something like a simulation... Appreciate the help!!!

 采纳的回答

Let's say you have these x, y, and Slope variables:
x = linspace(0,1,100);
y = exp(x/2);
Slope = 0.5*y;
Then to plot y and Slope vs x, adding one point at a time, you can do this:
% create the figure and an empty plot graphics handles
figure;
hold on
h_y = plot(NaN,NaN);
h_slope = plot(NaN,NaN);
% set the limits
xlim([min(x) max(x)]);
ylim([min([y Slope]) max([y Slope])]);
% draw the curves
for k=1:length(x)
% update the data
set(h_y,'XData',x(1:k),'YData',y(1:k));
set(h_slope,'XData',x(1:k),'YData',Slope(1:k));
% pause for 0.1 seconds
pause(0.1);
end

4 个评论

it gives error
"Unrecognized function or variable 'h_y'.
Error in a (line 32)
set(h_y,'XData',x(1:k),'YData',y(1:k));"
When I write hPlot instead of h_y and h_Slope , only drawing or plotting x and Slope
h_y is defined in the code I posted; use it in its entirety.

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