Version 5.0 The LEDA User Manual

eal triangle t + const real vector& v
real triangle t − const real vector& v
returns t translated by vector v.
returns t translated by vector −v.
real triangle t.rotate90(const real point& q, int i = 1)
real triangle t.rotate90(int i = 1)
returns t rotated about q by an angle of i × 90 degrees.
If i > 0 the rotation is counter-clockwise otherwise it is
clockwise.
returns t.rotate90(t.source(),i).
real triangle t.reflect(const real point& p, const real point& q)
real triangle t.reflect(const real point& p)
returns t reflected across the straight line passing through
p and q.
returns t reflected across point p.
real triangle t.reverse( )
returns t reversed.