Geoff: The functionality you seek is available in circles.m, which is described here: http://www.mathworks.com/matlabcentral/fileexchange/45952-circle-plotter/content/circles_demo/html/circles_documentation.html
Slightly easier than
hc = circle(...);
set(hc, 'Property', value)
would be to change, in circle.m, the 'style' argument to 'varargin', and pass all those additional arguments straight to plot, ie.
I have a problem.
When I type 'guage', it runs but I cannot see 'Angular Gauge ActiveX' on the form. It shows just a Slider.
However, if I double-click 'Guage.fig', I can see 'Angular Gauge' so, I tried control the slider but the gauge is never move.
I'm a user of R2013b. Please help me if you see my comment.