Optic_flow_RF_estimation_Zhang_et_al_2022/code/PlottingTools/colorline.m

function line_instance = colorline(x,y,c,varargin)
line_instance  = patch('vertices',[[nan;x],[nan;y]],'faces',1:(length(x)+1),...
                       'facecolor','none','edgecolor','interp',...
                       'facevertexcdata',[nan(1,size(c,2));c],varargin{:});
end