MATLAB: Is it possible to get axis size in px units if it is created in normalized units

axesaxisplotscreenunit

I have the following code: set(gcf,'units','normalized','position',[0 0 1 1]) axes('units','normalized','position',[0 0 1 1]) And I want to know axes in pixels.

Best Answer

set(gcf, 'units', 'normalized', 'position', [0 0 1 1]);
AxesH = axes('units', 'normalized', 'position', [0 0 1 1]);
drawnow;   % !!!!!
backUnits = get(AxesH, 'units');
set(AxesH, 'Units', 'pixels')
pixPos = get(AxesH, 'Position');
set(AxesH, 'Units', backUnits);

Without the drawnow I get my full monitor resolution, although Matlab crops the height to display the upper part of the border and the menu bar. What a pity.

A simpler method with a built-in Matlab function:

pixPos = getpixelposition(AxesH)

Related Solutions

MATLAB: Get(axH,’position’) reporting incorrect values

I see -and expect- the same behaviour under Matlab 6.5/2009a/2011b under Windows.

Drawing the rectangle in the ax2 object causes an automatic scaling of the X- and Y-limits. Therefore the visible position is shifted. You can avoid this by setting the limits explicitely:

figure;
ax1 = axes('xcolor', 'm', 'ycolor', 'm');
ax2 = axes('position', [0 0 1 1], 'color', 'none', ...
           'XLim', [0, 1], 'YLim', [0, 1]);
rectH = rectangle('parent', ax2, ...
                  'position', get(ax1,'position'), ...
                  'edgecolor','k');

This behaviour explains also, why the subsequent drawings seem to fix the problem - it happens by accident by resetting the limits to the necessary size.

MATLAB: Inputting Units

That's not user friendly. It would be very annoying to your users and I recommend you DON'T DO THAT, especially since it's not necessary at all. Just convert what they input to upper case with the upper() function, like this:

% Set up the dialog box parameters
prompt = {'Enter temperature:','Enter the temperature scale:'};
dialogTitle = 'Enter parameters';
numberOfLines = 1;
defaultAnswers = {'100','C'};
userResponse = inputdlg(prompt, dialogTitle, numberOfLines, defaultAnswers);
% Extract out individual variables from the user response.
temperature = str2double(userResponse{1})
% Convert to upper case.
EoSI = upper(userResponse{2})

Best Answer

Related Solutions

MATLAB: Get(axH,’position’) reporting incorrect values

MATLAB: Inputting Units

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