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?

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);

Answer 1

[Stalin Samuel]

Make sure that in your working directory you have the function file named "arrow3"

[Anjali Rao]

I checked. There was a file. I just tried running it, and it looks to have solved the problem. Thanks for the help

Answer 2

[Walter Roberson]

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.