I'd love to have some abilty to draw circles on the ground as a guide, but not the normal ellipsis way, which always ends up in the wrong place. I'd like to be able to click where I want the centre of the circle, then drag to where I want the outside to be (ie draw the radius from centre outwards) then have a perfect circle made in the exact centre I wanted. In fact I'd love to be able to draw circles by defining their centre in *any* art program I have used!!! Never found it.
I'd like if we could draw an overlay in any art program and have the lines superimposed as a layer on the world as a guide to construction. Maybe use a streetmap of our town as an overlay provided we could define the transparency color (white on most streetmaps)