www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/CreateEllipseAnnotationExample.m
%% Create Ellipse Annotation % Create a simple line plot and add an ellipse annotation to the figure. % Specify |dim| as the size and location of the smallest rectangle that % encloses the ellipse. % Copyright 2015 The MathWorks, Inc. figure x = linspace(-4,4); y = x.^3 - 12*x; plot(x,y) dim = [.2 .74 .25 .15]; annotation('ellipse',dim) %% % Draw a red rectangle using the same dimensions to show how the ellipse % fills the rectanglular area. annotation('rectangle',dim,'Color','red')