Coordinate system definition To define a coordinate system you need to define Its origin③3 component Its orientation(3 components, usually the direction cosines of one axis and one component of another axes, and definition of handed-ness) Its scale(units) 02/11/02 12.540Lec0202/11/02 12.540 Lec 02 3 Coordinate system definition • To define a coordinate system you need to define: – Its origin (3 component) – Its orientation (3 components, usually the direction cosines of one axis and one component of another axes, and definition of handed-ness) – Its scale (units)