Fixed a bug in trplot(), a function in Robotics Toolbox for MATLAB

[jeff millar]

Hello all, 

Maybe this will help someone.  Got an error when calling trplot() to use an existing axes.

Call format,

   trplot(eye(3, 3), 'axhandle', Ax, 'frame', 'host', 'color', 'black');

Error message,

Undefined function or variable 'ih'.

Error in trplot (line 359)
    if isempty(opt.handle) && ~ih

The problem is that 'ih' is not defined in the branch path using 'axhandle'

The diff looks like this

 

@@ -233,6 +233,7 @@ function hout = trplot(T, varargin)
     if ~isempty(opt.axhandle)
         hax = opt.axhandle;
         hold(hax);
+        ih = ishold;
     else
         ih = ishold;
         if ~ih

hope this helps, 

jeff