diff options
Diffstat (limited to 'src/corelib/tools/qline.cpp')
| -rw-r--r-- | src/corelib/tools/qline.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/corelib/tools/qline.cpp b/src/corelib/tools/qline.cpp index d0afb7a..8112757 100644 --- a/src/corelib/tools/qline.cpp +++ b/src/corelib/tools/qline.cpp @@ -574,7 +574,7 @@ qreal QLineF::angle() const const qreal dx = pt2.x() - pt1.x(); const qreal dy = pt2.y() - pt1.y(); - const qreal theta = atan2(-dy, dx) * 360.0 / M_2PI; + const qreal theta = qAtan2(-dy, dx) * 360.0 / M_2PI; const qreal theta_normalized = theta < 0 ? theta + 360 : theta; @@ -814,7 +814,7 @@ qreal QLineF::angle(const QLineF &l) const qreal cos_line = (dx()*l.dx() + dy()*l.dy()) / (length()*l.length()); qreal rad = 0; // only accept cos_line in the range [-1,1], if it is outside, use 0 (we return 0 rather than PI for those cases) - if (cos_line >= -1.0 && cos_line <= 1.0) rad = acos( cos_line ); + if (cos_line >= -1.0 && cos_line <= 1.0) rad = qAcos( cos_line ); return rad * 360 / M_2PI; } |