6 [theta:=-10*deg, phi:=60*deg, ModelView(central), DistCam(20)];
8 background(full, gray),
9 P1 :=planEqn([1, 1, 1, 2]), P2 :=[Origin, vecK-vecJ],
11 a :=Copy(getdroite(D), 1, 2),
12 b :=Copy(getplan(P1, 0.75), 11, 2),
13 c :=Copy(getplan(P2, 0.75), 3, 2),
15 bdPlan(P1, [color :=red, opacity :=0.7, scale :=0.75 ]),
16 bdPlan(P2, [color :=blue, opacity :=0.7, scale :=0.75]),
17 bdDroite(D, [color :=darkgreen, width :=12]),
18 bdAxes([0, 0], [color :=gold, width :=8, arrows :=1]),
19 bdLabel(a, "$D$", [labelpos :=[0.5, -i]]),
20 bdLabel(b, "$P_1$", [labelpos :=[0.5, i]]),
21 bdLabel(c, "$P_2$", [labelpos :=[0.5, i]])