diff options
Diffstat (limited to 'src/gui/math3d/qvector2d.cpp')
| -rw-r--r-- | src/gui/math3d/qvector2d.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp index f12bec0..2555a6f 100644 --- a/src/gui/math3d/qvector2d.cpp +++ b/src/gui/math3d/qvector2d.cpp @@ -190,7 +190,9 @@ qreal QVector2D::lengthSquared() const */ QVector2D QVector2D::normalized() const { - qreal len = lengthSquared(); + // Need some extra precision if the length is very small. + double len = double(xp) * double(xp) + + double(yp) * double(yp); if (qFuzzyIsNull(len - 1.0f)) return *this; else if (!qFuzzyIsNull(len)) @@ -207,7 +209,9 @@ QVector2D QVector2D::normalized() const */ void QVector2D::normalize() { - qreal len = lengthSquared(); + // Need some extra precision if the length is very small. + double len = double(xp) * double(xp) + + double(yp) * double(yp); if (qFuzzyIsNull(len - 1.0f) || qFuzzyIsNull(len)) return; |