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!!!

Answer 1

[Voss]

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

[onur karakurt]

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

[Voss]

h_y is defined in the code I posted; use it in its entirety.

[onur karakurt]

thanks a lot

[Voss]

You're welcome!