caisin/typst
1
0
Fork 0
mirror of https://github.com/typst/typst synced 2025-08-12 14:17:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Gradient::repeat Fix floating-point error in stop calculation

Browse Source 
Fixes #5819
This commit is contained in:
+merlan #flirora 2025-02-07 18:23:25 -05:00
parent e4f8e57c53
commit a985d1a29c
2 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
crates/typst-library/src/visualize/gradient.rs
View File

@ -582,12 +582,11 @@ impl Gradient {
let mut stops = stops let mut stops = stops
.iter() .iter()
.map(move |&(color, offset)| { .map(move |&(color, offset)| {
let t = i as f64 / n as f64;
let r = offset.get(); let r = offset.get();
if i % 2 == 1 && mirror { if i % 2 == 1 && mirror {
(color, Ratio::new(t + (1.0 - r) / n as f64)) (color, Ratio::new((i as f64 + 1.0 - r) / n as f64))
} else { } else {
(color, Ratio::new(t + r / n as f64)) (color, Ratio::new((i as f64 + r) / n as f64))
} }
}) })
.collect::<Vec<_>>(); .collect::<Vec<_>>();

6
tests/suite/visualize/gradient.typ
View File

@ -658,3 +658,9 @@ $ A = mat(
height: 10pt, height: 10pt,
fill: gradient.linear(violet, blue, space: cmyk) fill: gradient.linear(violet, blue, space: cmyk)
) )
--- issue-5819-gradient-repeat ---
#let my-gradient = gradient.linear(red, blue).repeat(5)
#let _ = gradient.linear(..my-gradient.stops())
#let my-gradient2 = gradient.linear(red, blue).repeat(5, mirror: true)
#let _ = gradient.linear(..my-gradient2.stops())