how to fix Y limits of the plot

__Hi guys!! I have a Matlab script. Here i want to change amplitude of sin function on the figure, using slider.

(It's just an exhample. Original script is much bigger)

function f
close all
global x Ampl

x=0:0.1:360;
Ampl=1;

Sl_default=1;
Sl_min=0.5;
Sl_max=3;
SSlider = uicontrol('Style', 'slider',...
        'Min',Sl_min,'Max',Sl_max,'Value',Sl_default,'SliderStep',[0.05,0.5],...
        'Position', [0 40 120 20],...
        'Callback', @Slider_ampl_function);


Plot_sinus;
xlim([0, 360]);
ylim([-1, 1]);
set(gca,'xtick',linspace(0,360,13),'ytick',linspace(-1,1,11));
set(gca,'Units','pixels','Position',[150,70,350,350]);
grid on;

end


function Slider_ampl_function(SSlider,eventdata)
global Ampl

Ampl = get(SSlider,'Value');

uicontrol('Style', 'text', 'String', ['amplitude= ',num2str(Ampl)],...
'Position', [130 40 120 20]);

Plot_sinus;%
end


function f=Plot_sinus
global x Ampl

y=Ampl*sind(x);
plot(x,y,'Color','k','LineWidth',2);

end

__The question is: is it possible to fix Ymin (=-1), Ymax(=1) and Ystep(=0.2) on Y axis, so that they doesn't depend on slider.

Of course, i can copy a part of the script

ylim([-1, 1]);
set(gca,'xtick',linspace(0,360,13),'ytick',linspace(-1,1,11));

inside function "Plot_sinus" after plot(...), so Matlab will set correct Ymin, Ymax and Ystep everytime i plot new curve.

But may be there is another, more elegant way to set them only one time. Matlab version 2017a.

[Steven Lord]

Do you want the slider to be part of the figure or part of the script? If the latter, use the Live Editor and add an interactive control.

[Marat Zhe]

Hello Steven Lord. I want slider to be a part of the figure. As you can see, my script places slider on the figure. Thank's for interesting information about interactive control, but, as for as i understand, this function is available for 2018b user's. I have 2017a version. I added information about Matlab version to my question.

Answer 1

[Marat Zhe]

__Hi dear Matlab user's and staff. I think i've resolved my issue.

All i needed is to add code section

Axes_handle=axes;
set(Axes_handle,'NextPlot','replacechildren');

before "Plot_sinus" function call in main function body.

__Thanks for your attention.