Fixed issue. Curves look too wavy.

(grafted from 87dfd6a669e23585ed67982d043e6abd26a1f00b)

--HG--
branch : develop

ChangeLog.txt

@@ -64,6 +64,7 @@
 - [#752] Valentina produces corrupted file if unite two pieces.
 - [#753] Elliptical arc tool is broken.
 - [#767] Valentina produces wrong main path.
+- Fix issue. Curves look too wavy.
 
 # Version 0.5.0 May 9, 2017
 - [#581] User can now filter input lists by keyword in function wizard.

src/libs/vgeometry/vabstractcubicbezier.cpp

@@ -231,7 +231,7 @@ void VAbstractCubicBezier::PointBezier_r(qreal x1, qreal y1, qreal x2, qreal y2,
     const double m_angle_tolerance = 0.0;
     enum curve_recursion_limit_e { curve_recursion_limit = 32 };
     const double m_cusp_limit = 0.0;
-    double m_approximation_scale = 1.0;
+    double m_approximation_scale = 10.0;
     double m_distance_tolerance_square;
 
     m_distance_tolerance_square = 0.5 / m_approximation_scale;