#import "@preview/cetz:0.4.2"
#set page(width: auto, height: auto, margin: 0.5cm)
#cetz.canvas(length:3cm,{import cetz.draw: *
ortho(x: 150deg,y: 160deg,z: 180deg,{
on-xz(y:0,{
line(
name:"a",stroke:blue,
(to:(2,3),rel:(220deg,0.75)),
(2,3),
(to:(2,3),rel:(40deg,0.75))
)
line(
name:"b",stroke:red,
(to:(2,3),rel:(180deg,0.75)),
(2,3),
(to:(2,3),rel:(0deg,0.75))
)
})
intersections("i",{
line(
stroke:green,
"a.end",
(rel:"a.end",to:(0,0,-0.5)),
)
line(
stroke:none,
"b.start",
"b.end"
)
})
circle(stroke:purple,"i.0",radius:0.04)
circle(stroke:orange,"a.end",radius:0.04)
circle(stroke:olive,(2,0,3),radius:0.04)
cetz.angle.right-angle(
radius:0.25,
"i.0", // purple circle
"a.end", // orange circle
(2,0,3), // olive circle
)
})
})
It’s a right triangle on the xz plane.
I highlighted the points with differently colored circles to make it clearer.
How can I solve this? I tried to manually make a square with a centered dot, but when I tried to insert a dot in the middle of it, the named anchors “a.0” don’t work along with coordinates inside of on-xz(y:,{}) environments.