Compass

compass(Point, Point)

compass(Point, Real, Figure)

compass(Circumference, Figure)

Given two points $C$ and $P$, it does a mark at $P$ mimicking a compass with the needle at $C$. it returns a list with an arc object.

Given a point $C$, a real $r$ and a figure $F$, it draws a mark in the intersection of the figure and the compass with the needle at $C$ and radius $r$. It returns a list with an arc object.

Given a circumference and a figure, it returns the portion of the circumference that intersects the figure. It returns a list with an arc object.

Arc, Intersect