obj.PlotlyDefaults.CaptionMarginIncreaseFactor = 1.2;

obj.PlotlyDefaults.MinCaptionMargin = 80;

%----ADD A CUSTOM CAPTION-----%

function obj = add_caption(obj, caption_string, varargin)

caption.text = caption_string;

% defaults

caption.xref = 'paper';

caption.yref = 'paper';

caption.xanchor = 'left';

caption.yanchor = 'top';

caption.x = 0.1;

caption.y = -0.05;

caption.showarrow = false;

% inject any custom annotation specs

for n = 1:2:length(varargin)

caption = setfield(caption, varargin{n}, varargin{n+1});

end

% adjust the bottom margin

obj.layout.margin.b = max(obj.layout.margin.b, ...

obj.PlotlyDefaults.MinCaptionMargin);

% add the new caption to the figure

obj.State.Figure.NumTexts = obj.State.Figure.NumTexts + 1;

obj.layout.annotations{obj.State.Figure.NumTexts} = caption;

% update the figure state

obj.State.Text(obj.State.Figure.NumTexts).Handle = NaN;

obj.State.Text(obj.State.Figure.NumTexts).AssociatedAxis = gca;

obj.State.Text(obj.State.Figure.NumTexts).Title = false;

end