User_guide

2.1: Position vs OuterPosition 

Typically one would position some axes using their OuterPosition so that the axis labels, title and other annotations are all contained within the specified area. Sometimes, particularly if drawing images, one might want to instead make the axes canvas (the white bit!) fill the specified area. This is done by setting the Position property instead.

For example:

figure
axes( 'Units', 'Normalized', 'OuterPosition', [0 0 1 1] )
                    

figure
axes( 'Units', 'Normalized', 'Position', [0 0 1 1] )
                    

Positioning axes

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Axes inside layouts