fixed bug re. scale ticks not being properly removed when interactor returns to circular form
fixed bug re. scale ticks not being properly removed when interactor returns to circular form

colin-combe/CLMS-model,colin-combe/crosslink-viewer,colin-combe/crosslink-viewer,colin-combe/CLMS-model,colin-combe/crosslink-viewer,colin-combe/crosslink-viewer