GUI IN MATLAB 2021B, HOW TO SELSCT LISTBOX

HI

how i change the color map of figure in GUI by ListBox Items:{ jet hot cool .....} using GUI

[yasmeen hadadd]

function ColormapListBoxValueChanged(app, event)
%             value = app.ColormapListBox.Value;
% Get the selected colormap from the Listbox
Items = {'jet', 'hsv', 'hot', 'cool'};
selected_colormap = Items{app.ColormapListBox.Value};
% Switch-case to change colormap based on selected_colormap
switch selected_colormap
    case 'jet'
        colormap(app.UIAxes, jet);
    case 'hsv'
        colormap(app.UIAxes, hsv);
    case 'hot'
        colormap(app.UIAxes, hot);
    case 'cool'
        colormap(app.UIAxes, cool);
        
end

this is cide but not working , what is the wrong?

[Walter Roberson]

selected_colormap = Items{app.ColormapListBox.Value};

That should be

selected_colormap = Items{app.ColormapListBox.ValueIndex};

[Walter Roberson]

Better would be

function ColormapListBoxValueChanged(app, event)
  selected_colormap = app.ColormapListBox.Value;
  colormap(app.UIAxes, selected_colormap)
end

Answer 1

[Walter Roberson]

Create a listbox with the colormap names. Set the callback for the listbox to execute

Colormap_name = app.LISTBOXNAME.Value;
colormap(app.FIGURENAME, Colormap_name);