Unable to display uicontrol within a given panel?

Question

Roger Breton 2024-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/2090231-unable-to-display-uicontrol-within-a-given-panel

评论： Voss 2024-3-5

I figure I split my figure width in two uipanels, in the hope of having better control over my components, in a script (Soon, I hope to migrate to AppDesigner...). I tell Matlab to display a 3D plot inside the first "uipanel" (to the left) and it works perfect, after creating axes belonging to that component. But when I ask Matlab to display a checkbox uicontrol in the second uipanel, after creating a second set of axes belonging to that second panel, it does not work. Must be something conceptual I don't understand about the relatioship between axes and uipanels? I tried forcing checkbox uicontrol to be visible to no avail. Here's my code:

fig = figure;

set(fig, 'Position', [400, 400, 1500/2, 800/2]);

% Create two uipanels as separate parent containers

panel1 = uipanel(fig, 'Position', [0.1, 0.1, 0.4, 0.8], ...

"Title","First", ...

"BackgroundColor","white");

panel2 = uipanel(fig, 'Position', [0.5, 0.1, 0.4, 0.8], ...

"Title","Second", ...

"BackgroundColor","white");

% Create axes within panels

ax = axes(panel1);

% Plot your scatter data on the UI axes

scatterHandle = scatter3(ax, X, Y, Z, 'filled');

Unrecognized function or variable 'X'.

title(ax, '3D Scatter plot');

xlabel(ax, 'X');

ylabel(ax, 'Y');

zlabel(ax, 'Z');

ax2 = axes(panel2);

%ax2.Visible = 'off';

checkbox1 = uicontrol(ax2, 'Style', 'checkbox', 'String', 'Show Scatter Plot', ...

'Position', [0.1, 0.1, 0.3, 0.50], 'Callback', @toggleScatterPlot);

checkbox1.Visible = 'on';

% Store the scatter plot handle

% scatterHandle = scatter3(X, Y, Z, 'filled', 'Visible', 'off');

% Callback function for checkbox

function toggleScatterPlot(~, ~)

if get(checkbox1, 'Value')

set(scatterHandle, 'Visible', 'on'); % Show scatter plot

else

set(scatterHandle, 'Visible', 'off'); % Hide scatter plot

end

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Roger Breton 2024-3-4

Forgot to add a screen capture:

I got an error, when running the code:

Error using uicontrol Axes cannot be a parent. Error in PANTONE_subplots (line 39) checkbox1 = uicontrol(ax2, 'Style', 'checkbox', 'String', 'Show Scatter Plot', ...

I tried changing the uicontrol line to:

checkbox1 = uicontrol(panel2, 'Style', 'checkbox', 'String', 'Show Scatter Plot', ...

'Position', [0.1, 0.1, 0.3, 0.50], 'Callback', @toggleScatterPlot);

But it still does not work? I'll continue searching the obscure reason this does not work...

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Answer 1

Voss 2024-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/2090231-unable-to-display-uicontrol-within-a-given-panel#answer_1420891

编辑：Voss 2024-3-4

在 MATLAB Online 中打开

"checkbox1 = uicontrol(ax2, ...)"

won't work because an axes cannot be the parent of a uicontrol, as the error message said.

"checkbox1 = uicontrol(panel2, ...)"

does work, in that it creates the checkbox in the specified panel with the specified properties.

However, you don't see it because the default Units for uicontrols created with the uicontrol() function are pixels. The Position you've used doesn't make sense if the Units are pixels. Probably you want to specify the Units as normalized (always specify Units before Position in an argument list).

X = [];

Y = [];

Z = [];

fig = figure;

set(fig, 'Position', [400, 400, 1500/2, 800/2]);

% Create two uipanels as separate parent containers

panel1 = uipanel(fig, 'Position', [0.1, 0.1, 0.4, 0.8], ...

"Title","First", ...

"BackgroundColor","white");

panel2 = uipanel(fig, 'Position', [0.5, 0.1, 0.4, 0.8], ...

"Title","Second", ...

"BackgroundColor","white");

% Create axes within panels

ax = axes(panel1);

% Plot your scatter data on the UI axes

scatterHandle = scatter3(ax, X, Y, Z, 'filled');

title(ax, '3D Scatter plot');

xlabel(ax, 'X');

ylabel(ax, 'Y');

zlabel(ax, 'Z');

ax2 = axes(panel2);

%ax2.Visible = 'off';

checkbox1 = uicontrol(panel2, 'Style', 'checkbox', 'String', 'Show Scatter Plot', ...

'Units', 'normalized', 'Position', [0.1, 0.1, 0.3, 0.50], 'Callback', @toggleScatterPlot, ...

'Visible','on');

% Store the scatter plot handle

% scatterHandle = scatter3(X, Y, Z, 'filled', 'Visible', 'off');

% Callback function for checkbox

function toggleScatterPlot(~, ~)

if get(checkbox1, 'Value')

set(scatterHandle, 'Visible', 'on'); % Show scatter plot

else

set(scatterHandle, 'Visible', 'off'); % Hide scatter plot

end

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Roger Breton 2024-3-4

在 MATLAB Online 中打开

Matlab is really not for the faint of heart... In searching for solutions, I stumbled on the gridlayout manager. So I ran with this for a while, until I could not successfully use the Hold ('on') directive? Here's my new code:

fig = uifigure('Position',[300 300 800 600]);
g = uigridlayout(fig);
g.RowHeight = {22,22, 22,'1x'}; 
g.ColumnWidth = {150,'1x'};
checkbox1 = uicheckbox(g, 'Text', 'sRGB');
checkbox1.Layout.Row = 2;
checkbox1.Layout.Column = 1;
checkbox2 = uicheckbox(g, 'Text', 'Jaune');
checkbox2.Layout.Row = 3;
checkbox2.Layout.Column = 1;
% Axes
ax = uiaxes(g);
ax.Layout.Row = [2 4]; % S'étend sur les 4 rangées
ax.Layout.Column = 2;
% ----------------------------------------------------------------------
[~, ~, raw] = xlsread('PANTONE V4 Coated M0 de ORIS (2020 04 30).xlsx');
Lab = cell2mat(raw(:, 3:5));
Lab(end, :) = []; % Pour enlever les NaN sur la dernière rangée
% Lab à Lch, 2162 couleurs
cform = makecform('lab2lch');
Lch = applycform(Lab,cform);
% Grouping by hue angle ----------------------------------- 80 à 110
hue_angles = Lch(:, 3); % Extract hue angles
% Create a logical mask for entries within the specified range
mask = (hue_angles >= 80) & (hue_angles <= 110);
% Extract the relevant rows
Lch_80_110 = Lch(mask, :);
% revenir à Lab
L = Lch_80_110(:, 1);
C = Lch_80_110(:, 2);
h_degrees = Lch_80_110(:, 3);
% Convert hue angle from degrees to radians
h_radians = deg2rad(h_degrees);
% Calculate a* and b* components
a_star = C .* cos(h_radians);
b_star = C .* sin(h_radians);
Lab = [L, a_star, b_star];
% ---------------------------------------------------------
% Extract the numeric data from the table
CIE_L = Lab(:,1);
CIE_a = Lab(:,2);
CIE_b = Lab(:,3);
NomsCouleur = string(raw(:, 2));
cform = makecform('lab2srgb','AdaptedWhitePoint',whitepoint('D50'));
rawRGB = applycform(Lab,cform);
Diam = 20;
scatter3(ax, Lab(:, 2), Lab(:, 3), Lab(:, 1), Diam, rawRGB,'fill', 'MarkerEdgeColor', [0.5,0.5,0.5], 'Linewidth', 0.5); 
xlabel(ax, 'b* (X)'),ylabel(ax,'a* (Y)'),zlabel(ax,'L* (Z)');
grid(ax,'on');
hold(ax,'on');
xlim(ax, [-128 128]);
ylim(ax, [-128 128]);
zlim(ax, [0 100]);
linewidth = 1;
line(ax,[-128 0],[0 0],[0 0],'color',[0 1 0],'lineWidth',linewidth); % Vert
line(ax, [0 128],[0 0],[0 0],'color',[1 0 0],'lineWidth',linewidth);  % Rouge
line(ax, [0 0],[-128 0],[0 0],'color',[0 0 1],'lineWidth',linewidth);  % Bleu
line(ax, [0 0],[128 0],[0 0],'color',[1 1 0],'lineWidth',linewidth);  % Jaune
line(ax, [0 0],[0 0],[0 100],'color',[0 0 0],'lineWidth',linewidth);  % Noir
[r,g,b] = meshgrid(linspace(0,1,20)); % linspace(0,1,50)
rgb = [r(:), g(:), b(:)];
LAB = rgb2lab(rgb, 'ColorSpace', 'srgb', 'WhitePoint','d50');
a = LAB(:,2);
b = LAB(:,3);
L = LAB(:,1);
k = boundary(a,b,L);
h1 = trisurf(k,a,b,L,'FaceColor','interp', 'FaceVertexCData',rgb,'EdgeColor','none', 'FaceAlpha', 0.30);
h1.Visible = 'on';

The line :

hold(ax,'on');

is supposed to allow me to overlay another plot and it works perfect in the context of a non-gridlayout. Somehow, the directive is ignored and I get the trisurf plot in a separate window... :(

Roger Breton 2024-3-5

在 MATLAB Online 中打开

I went back to my "uipanel" solution and with the

hold (ax, 'on');

statement was honored :-)

So now, I'm continuing my work on that basis. Thank you, once again, for your help.

Voss 2024-3-5

You're welcome! Any other questions, let me know. Otherwise, please "Accept" this answer. Thanks!

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Unable to display uicontrol within a given panel?

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Unable to display uicontrol within a given panel?

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