I'm trying to take a pre-drawn shape, move it into position over a number of smaller elements, and select all of the elements it covers so that I can change their colour.
It would be not unlike turning an image/logo into a mosiac, except the small elements aren't square, and they're pre-drawin into a (giant) array.
In the attached photo, I'm trying to fake a 'fair isle' effect without drawing it 'pixel by pixel' I'd like to take a shape (more complex than the circle) and select all of the knot elements in behind or covered by the shape.