www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/CreatePatchAndVaryTransparencyExample.m
%% Vary Patch Object Transparency % Plot a line using the |patch| function. Set the last entry of |y| to % |NaN| so that |patch| creates a line instead of a closed polygon. % Copyright 2015 The MathWorks, Inc. %% % Define one transparency value per vertex by setting the % |FaceVertexAlphaData| property to a column vector. Interpret the values % as transparency values (0 is invisible, 1 is opaque) by setting the % |AlphaDataMapping| property to |'none'|. Interpolate the transparency % between vertices by setting the |EdgeAlpha| property to |'interp'|. x = linspace(1,10,10); y = sin(x); y(end) = NaN; figure alpha_values = linspace(0,1,10)'; patch(x,y,'red','EdgeColor','red',... 'FaceVertexAlphaData',alpha_values,'AlphaDataMapping','none',... 'EdgeAlpha','interp')