MATLAB: Matlab adds additional margin to an image!

image margins

I'm going to develope an app for calculating beam deflections. for inserting images of supports, when I insert the images matlab automatically adds unwanted margins to my pictures.Does anyone know how can I solve this issue?

Screen Shot 2019-05-28 at 10.15.35 PM.png

Best Answer

Amin - from your code

ax = uiaxes(fig,'position',[78 120 240 240]);
imshow('Support1.png','parent',ax);
ax = uiaxes(fig,'position',[220 120 240 240]);

isn't the first axes created at x-coordinate 78 with a width of 240? So that would mean that 78+240=318...but the second axes is created at x-coordinate 220 which is less than 318 which leads to overlap amongst the two axes. Maybe you need to create the second axes at least at x-coordinate 318 so that there is no overlap between the two.

Related Solutions

MATLAB: How to display a transparent image in a UIFigure

It is possible to display a transparent image by using a UIAxes object and by making sure to retain the alpha data when reading and displaying the image. The code bellow shows an example on how this can be achieved:

fig = uifigure;
ax = uiaxes(f);
[imdata, ~, imalpha] = imread('myimage.png');
image(imdata, "AlphaData", imalpha, "Parent", ax);
ax.Visible = "off";

It is then possible customize the axes further (for instance "ax.Position" allows to set the positions and dimensions of the image). The following page of the documentation lists the UIAxes properties that can be used:

https://www.mathworks.com/help/matlab/ref/matlab.ui.control.uiaxes-properties.html

MATLAB: How to insert an image in App Designer in Matlab R2017b

           % Fill figure with axes "ha" and remove tick labels
             app.ha.Position = [0 0 app.UIFigure.Position(3:4)];
            % Remove title, axis labels, and tick labels
            uistack(app.ha,top);
            title(app.ha, []);
            xlabel(app.ha, []);
            ylabel(app.ha, []);
            app.ha.XAxis.TickLabels = {};
            app.ha.YAxis.TickLabels = {};
            % Display image and stretch to fill axes
            I = imshow('Powerlines.jpg', 'Parent', app.ha,'XData', [1 app.ha.Position(3)],'YData', [1 app.ha.Position(4)]);
            % Set limits of axes
            app.ha.XLim = [0 I.XData(2)];
            app.ha.YLim = [0 I.YData(2)];

I hope it helps you

Best Answer

Related Solutions

MATLAB: How to display a transparent image in a UIFigure

MATLAB: How to insert an image in App Designer in Matlab R2017b

Related Question