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| author | mzuenni <michi.zuendorf@gmail.com> | 2023-02-04 13:05:14 +0100 |
|---|---|---|
| committer | mzuenni <michi.zuendorf@gmail.com> | 2023-02-04 13:05:14 +0100 |
| commit | c5fa5456eb8a31c5eb8af129bc6f3dc39c54a894 (patch) | |
| tree | 400e68ae165aaf3d2205f8602055ca934265d611 /geometry/polygon.cpp | |
| parent | 8ca4bbf3e4e7be7eb00dc83ed83969c992367a41 (diff) | |
fix
Diffstat (limited to 'geometry/polygon.cpp')
| -rw-r--r-- | geometry/polygon.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/geometry/polygon.cpp b/geometry/polygon.cpp index 6465fdb..9dd4f66 100644 --- a/geometry/polygon.cpp +++ b/geometry/polygon.cpp @@ -2,7 +2,7 @@ // Punkte gegen den Uhrzeigersinn: positiv, sonst negativ. double area(const vector<pt>& poly) { //poly[0] == poly.back() double res = 0; - for (int i = 0; i + 1 < n; i++) + for (int i = 0; i + 1 < sz(poly); i++) res += cross(poly[i], poly[i + 1]); return 0.5 * res; } @@ -27,7 +27,7 @@ bool inside(pt p, const vector<pt>& poly) { bool in = false; for (int i = 0; i + 1 < sz(poly); i++) { pt a = poly[i], b = poly[i + 1]; - if (pointOnLineSegment(a, b, b)) return false; + if (pointOnLineSegment(a, b, p)) return false; if (real(a) > real(b)) swap(a,b); if (real(a) <= real(p) && real(p) < real(b) && cross(p, a, b) < 0) { |