diff options
Diffstat (limited to 'src/opengl/gl2paintengineex/qtriangulatingstroker_p.h')
| -rw-r--r-- | src/opengl/gl2paintengineex/qtriangulatingstroker_p.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h b/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h index 483cea9..defa3f1 100644 --- a/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h +++ b/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h @@ -125,7 +125,16 @@ inline void QTriangulatingStroker::normalVector(float x1, float y1, float x2, fl { float dx = x2 - x1; float dy = y2 - y1; - float pw = m_width / sqrt(dx*dx + dy*dy); + + float pw; + + if (dx == 0) + pw = m_width / qAbs(dy); + else if (dy == 0) + pw = m_width / qAbs(dx); + else + pw = m_width / sqrt(dx*dx + dy*dy); + *nx = -dy * pw; *ny = dx * pw; } @@ -250,8 +259,6 @@ void QTriangulatingStroker::lineTo(const qreal *pts) - - void QTriangulatingStroker::join(const qreal *pts) { // Creates a join to the next segment (m_cx, m_cy) -> (pts[0], pts[1]) |