eus$ (send c1 :locate #f(1 2 3)) #<coordinates #X339d9c 1.0 2.0 3.0 / 0.0 0.0 0.0> eus$ (send c1 :pos) #f(1.0 2.0 3.0) eus$ (send c1 :rotate (deg2rad 45) :x) #<coordinates #X339d9c 1.0 2.0 3.0 / 0.0 0.0 0.785> eus$ (describe c1) plist=nil rot=#2f((1.0 0.0 0.0) (0.0 0.707107 -0.707107) (0.0 0.707107 0.707107)) pos=#f(1.0 2.0 3.0) nil同様に,
eus$ (setq c2 (instance cascaded-coords :init)) #<cascaded-coords #X3394cc 0.0 0.0 0.0 / 0.0 0.0 0.0> eus$ (setq c3 (instance cascaded-coords :init)) #<cascaded-coords #X339118 0.0 0.0 0.0 / 0.0 0.0 0.0> eus$ (send c3 :locate #f(100 0 0)) #<cascaded-coords #X339118 100.0 0.0 0.0 / 0.0 0.0 0.0> eus$ (describe c2) plist=nil rot=#2f((1.0 0.0 0.0) (0.0 1.0 0.0) (0.0 0.0 1.0)) pos=#f(0.0 0.0 0.0) parent=nil descendants=nil worldcoords=#<coordinates #X3393ac 0.0 0.0 0.0 / 0.0 0.0 0.0> manager=#<cascaded-coords #X3394cc 0.0 0.0 0.0 / 0.0 0.0 0.0> changed=nil nil eus$ (describe c3) plist=nil rot=#2f((1.0 0.0 0.0) (0.0 1.0 0.0) (0.0 0.0 1.0)) pos=#f(100.0 0.0 0.0) parent=nil descendants=nil worldcoords=#<coordinates #X33907c 100.0 0.0 0.0 / 0.0 0.0 0.0> manager=#<cascaded-coords #X339118 100.0 0.0 0.0 / 0.0 0.0 0.0> changed=nil nilという具合に,親子関係をもつ座標系も定義でき,:locateや:rotateメソッド が使える.