Delete a plot in GUI rutine

5 次查看（过去 30 天）
Gabriel González
This is the thing i'm trying to implement a button on a GUI script. The button function is to plot the x,y data over data_1's plot.
data_1 is calculated outside the plot_button callback function
Now the problem is that every time I do click on the plot_button the h2's plot is adding a new plot instead of erase the previous one.
How can i do to erase the previous h2 by just clicking plot_button?
This is an example:
function plot_button_callback()
x=rand(1,100);
y=rand(1,100);
h1=plot(handles.data_1), hold on
h2=plot(x,y)
end

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采纳的回答

John
John 2012-7-6
assuming the graph where you are plotting things is called graph_one then follow the example:
cla(handles.graph_one)
plot(handles.graph_one,x,y)
%cla should clear the graph

更多回答（1 个）

Honglei Chen
Honglei Chen 2012-7-6
Use
set(h2,'YData',y)
to replace the line.

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