Slider UI Control and Callback Function

2018 8 29
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更新时间：2018 8 29
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Hi,
I'm having a few issues with the Slider UIControl on an existing plot. I have managed to show the following:
I don't know how to adapt the Callback function that is provided in the documentation, for my example:
b.Callback = @(es,ed) updateSystem(h,tf(wn^2,[1,2*(es.Value)*wn,wn^2]));
I would like to vary the value of FL along the Slider to automatically update the graph (the lines must stay at the exact same points), and I am expecting the higher the value of FL, the more blue points are generated as described by the criteria labelled in the following code in the comments of this question.

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johnsmithofmatlab
johnsmithofmatlab 2018-8-29
WD = 0.4;
FL = 20;
f=figure;
for FK = [1.25, 1.5, 1.75, 2, 2.5, 3.5, 4, 5, 6];
if FK == 1.25;
y = [2 3 4 5 6 7 8 9 10 20 30 38];
x0 = log10(40);
x1 = log10(10000);
y0 = log10(2);
y1 = log10(38);
elseif FK == 1.5;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60];
x0 = log10(12);
x1 = log10(10000);
y0 = log10(2);
y1 = log10(50);
elseif FK == 1.75;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90];
x0 = log10(5);
x1 = log10(10000);
y0 = log10(2);
y1 = log10(90);
elseif FK == 2;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100];
x0 = log10(3.5);
x1 = log10(8000);
y0 = log10(2);
y1 = log10(100);
elseif FK == 2.5;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100];
x0 = log10(2.5);
x1 = log10(5500);
y0 = log10(2);
y1 = log10(100);
elseif FK == 3.5;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100];
x0 = log10(1.9);
x1 = log10(4200);
y0 = log10(2);
y1 = log10(100);
elseif FK == 4;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100];
x0 = log10(1.7);
x1 = log10(3800);
y0 = log10(2);
y1 = log10(100);
elseif FK == 5;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100];
x0 = log10(1.5);
x1 = log10(2800);
y0 = log10(2);
y1 = log10(100);
elseif FK == 6;
y = [2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100];
x0 = log10(1.2);
x1 = log10(2300);
y0 = log10(2);
y1 = log10(100);
end
x = zeros(1,length(y));
for i = [2:1:max(y)];
y(i) = log10(i);
x(i) = x0 + (((y(i) - y0)/(y1 - y0))*(x1 - x0)); % Linear Interpolation
x(i) = 10^(x(i));
if x(i)*(WD) < FL; % Criteria
loglog(x(i),i,'c.');
elseif x(i)*(WD) > FL;
hold on
loglog(x(i),i,'r.');
xlim([1 10000]);
ylim([1 100]);
end
end
end
grid;
hold on
b = uicontrol('Parent',f,'Style','slider','Position',[81,54,419,23],...
'value',FL, 'min',1, 'max',50);
bgcolor = f.Color;
bl1 = uicontrol('Parent',f,'Style','text','Position',[50,54,23,23],...
'String','1','BackgroundColor',bgcolor);
bl2 = uicontrol('Parent',f,'Style','text','Position',[500,54,23,23],...
'String','50','BackgroundColor',bgcolor);
bl3 = uicontrol('Parent',f,'Style','text','Position',[240,25,100,23],...
'String','FL','BackgroundColor',bgcolor);

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