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I am getting this error when I am trying to plot the PUMA 560 robot: Undefined function 'arrow3' for input arguments of type 'double'. How can I solve this?

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Anjali Rao
Anjali Rao 2015-6-9
评论： Anjali Rao 2015-6-9
Undefined function 'arrow3' for input arguments of type 'double'.
Error in trplot (line 229)
ha = arrow3(mstart(i,1:3), mend(i,1:3), [axcolors{i} num2str(opt.width)]);
Error in SerialLink/plot>create_robot (line 408)
h.wrist = trplot(eye(4,4), 'labels', upper(opt.wristlabel), 'arrow', 'rgb', 'length', 15*s);
Error in SerialLink/plot (line 241)
handle = create_robot(robot, opt);

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回答（2 个）

Stalin Samuel
Stalin Samuel 2015-6-9
Make sure that in your working directory you have the function file named "arrow3"
Walter Roberson
Walter Roberson 2015-6-9
It appears you may need to download http://www.mathworks.com/matlabcentral/fileexchange/14056-arrow3-version-5 and unpack it into a directory and use
pathtool
to add the directory to your MATLAB path.

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