Hello,

you generally didn't convert the strings which you get from the GUI handles in to float data type. Try the following:

in line 440: L=str2num(get(handles.HorizontalDistance,'String'));

in line 441: W=str2num(get(handles.VerticalDistance,'String'));

and so on.

Read this link http://cfd2012.com/matlab-mesh-generation.html

Hope it is helpful!

Thank you, I will try what you have recommended..

Thanks