P = (0.40226425912741515, 1.4350993722705405)
Q = (-0.6516678825215108, -0.0183626008531421)
Fluss = Line(P, Q)
Stock = (0.26449535172232747, 0.5223803607118299)
Biene = (0.10950533089160298, -0.09069127724081351)
Trinkstelle = Point(Fluss)
BP: Biene + (-0.14, 0)
R = (0.8603458762493348, -0.03902793696390536)
Waldrand = Line(P, R)
PollenSammelstelle = Point(Waldrand)