How to resolve the Errors regarding Undefined function 'real' for input arguments of type 'matlab.ui.Figure'.

>> actup Undefined function 'real' for input arguments of type 'matlab.ui.Figure'.

Error in int2str (line 12) x = real(x);

      if true
        % code
      end

Error in PlotRay (line 52) Ans = inputdlg({...

Error in PlottingTools (line 152) PlotRay([DirInfo.MainWork Def.SubDir]);

Error in AcToolboxFrontEnd (line 298) State = PlottingTools(Def, DirInfo, [], PlotToolsExitStrs);

Error in act (line 3) AcToolboxFrontEnd;

Error in run (line 96) evalin('caller', [script ';']);

Error in actup (line 3) run([cd,'\source\act']);

Answer 1

[Jan]

According to the error message, your x is a handle of a figure. Then real() is not defined to convert it.

If you post the related code, we might be able to see, why you assume that x has a numerical value.

[sangram more]

this was the code

function s = int2str(x)
[DELETED]
%   Copyright 1984-2010 The MathWorks, Inc.
[DELETED]

[Jan]

Please read http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

I've removed the posted code. There is no reason to publish the copy-righted code of int2str(), but the problem is found in the code, which calls this function. Why does your code try to convert a figure handle to a string in the function PlotRay, line 52?