Change LineWidth with help of a function.

2011 8 14
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I want the function to change the width of an already existing graph.
Calling the bytBredd. Loads the new width of the graph (a numeric value) and change in the plot as plot_handle suggest bytBredd(plot_handle).
The function bytBredd.m
function plot_handles= bytBredd(plot_handles)
bredd = inputdlg('Vilken bredd vill du ha? ');
id=getPlotHandle(plot_handles); % anropa getplothandle
figure(id);
plot_handle = get(gca,'Children');
handle=set(plot_handle,'LineWidth',bredd);
plot_handles(id) = handle;
end
Error message:
??? Undefined function or method 'getPlotHandle' for input arguments of type 'double'.
Error in ==> bytBredd at 3 id=getPlotHandle(plot_handles); % anropa getplothandle
Error in ==> mainMeny at 27 bytBredd(plot_handles);
Grateful for the help.

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回答（1 个）

Paulo Silva
Paulo Silva 2011-8-14

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You don't have the getPlotHandle function!

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Martin
Martin 2011-8-14
Here is the function that I run to draw the graph.
function [plot_handles] = skapaPlot(plot_handles)
%[id]=getPlotHandle(plot_handles);
id = input('Ange fönster: ');
which -all getPlotHandle;
func = inputdlg('Mata in en funktion: ');
x = linspace(0,10,100);
y = eval(func{1});
figure(id);
handle = plot(x,y),grid
plot_handles(id) = handle;
end

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Martin
Martin
2011-8-14

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