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no cast, segments

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This commit is contained in:
Ryan Oldenburg 2020-12-04 18:27:39 -06:00
parent de9ef9af4f
commit 803c2ecf40
1 changed files with 5 additions and 6 deletions
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11
src/pixie/paths.nim
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@ -495,17 +495,17 @@ proc commandsToPolygons*(commands: seq[PathCommand]): seq[seq[Vec2]] =
if polygon.len > 0: if polygon.len > 0:
result.add(polygon) result.add(polygon)
iterator zipline*[T](s: seq[T]): (T, T) = iterator zipline[T](s: seq[T]): (T, T) =
## Return elements in pairs: (1st, 2nd), (2nd, 3rd) ... (nth, last). ## Return elements in pairs: (1st, 2nd), (2nd, 3rd) ... (nth, last).
for i in 0 ..< s.len - 1: for i in 0 ..< s.len - 1:
yield(s[i], s[i + 1]) yield(s[i], s[i + 1])
iterator zipwise*[T](s: seq[T]): (T, T) = iterator segments(s: seq[Vec2]): Segment =
## Return elements in pairs: (1st, 2nd), (2nd, 3rd) ... (last, 1st). ## Return elements in pairs: (1st, 2nd), (2nd, 3rd) ... (last, 1st).
for i in 0 ..< s.len - 1: for i in 0 ..< s.len - 1:
yield(s[i], s[i + 1]) yield(Segment(at: s[i], to: s[i + 1]))
if s.len > 0: if s.len > 0:
yield(s[^1], s[0]) yield(Segment(at: s[^1], to: s[0]))
proc strokePolygons*(ps: seq[seq[Vec2]], strokeWidthR, strokeWidthL: float32): seq[seq[Vec2]] = proc strokePolygons*(ps: seq[seq[Vec2]], strokeWidthR, strokeWidthL: float32): seq[seq[Vec2]] =
## Converts simple polygons into stroked versions: ## Converts simple polygons into stroked versions:
@ -610,8 +610,7 @@ proc fillPolygons*(
scan = Segment(at: vec2(-10000, yLine), to: vec2(100000, yLine)) scan = Segment(at: vec2(-10000, yLine), to: vec2(100000, yLine))
for poly in polys: for poly in polys:
for e in poly.zipwise: for line in poly.segments:
let line = cast[Segment](e)
var at: Vec2 var at: Vec2
if line.intersects(scan, at): if line.intersects(scan, at):
let let