[Bug fixes] Circle anchors are detached from circle elements within ortho() function.

[hexiongwu1995]

Circle anchors are detached from circle elements within ortho() function. If possible, please provide some insight into this issue. I'm very thankful to the members of this development team for their contributions.

#set page(paper:"a4", flipped:true, margin:0.2cm)
#set align(center+horizon)

#import "@preview/cetz:0.4.2"
#cetz.canvas({
import cetz.draw:*
import cetz.angle:*
import calc:*

scale(x:1.5,y:1.5,z:1.5)

ortho(x:300deg, y:0deg, z:280deg,{
let mark-style= ( mark:(end:(symbol:"curved-stealth", fill:black, scale:0.5) ) ) 
line((0,0,0), (4,0,0), name:"x",..mark-style, stroke:(dash:"dashed")) 
line((0,0,0), (0,4,0), name:"y",..mark-style, stroke:(dash:"dashed") ) 
line((0,0,0), (0,0,4), name:"z",..mark-style, stroke:(dash:"dashed") ) 
content((rel:(0.3,0,0), to: "x.end"), $x$) 
content((rel:(0,0.3,0), to: "y.end"), $y$) 
content((rel:(0,0,0.3), to: "z.end"), $z$) 

let Rdivision=10 
for k in range(Rdivision) {
let Rinterval= 2*pi/Rdivision
scope({
rotate(z:k*Rinterval) ;
on-yz(x:0, {circle((0,4), radius:0.8cm, name:"cir"); line("cir.south","cir.north", stroke:(dash:"dotted"));line("cir.west","cir.east", stroke:(dash:"dashed"))} 

) }) } 

}) })

[johannes-wolf]

Looks like some rounding errors are accumulating.