// Used for IsSimple.
internal static bool NeedsCracking(bool allowCoincident, com.epl.geometry.EditShape shape, double tolerance, com.epl.geometry.NonSimpleResult result, com.epl.geometry.ProgressTracker progress_tracker)
{
if (!CanBeCracked(shape))
{
return(false);
}
com.epl.geometry.Cracker cracker = new com.epl.geometry.Cracker(progress_tracker);
cracker.m_shape = shape;
cracker.m_tolerance = tolerance;
cracker.m_bAllowCoincident = allowCoincident;
if (cracker.NeedsCrackingImpl_())
{
if (result != null)
{
result.Assign(cracker.m_non_simple_result);
}
return(true);
}
// Now swap the coordinates to catch horizontal cases.
com.epl.geometry.Transformation2D transform = new com.epl.geometry.Transformation2D();
transform.SetSwapCoordinates();
shape.ApplyTransformation(transform);
cracker = new com.epl.geometry.Cracker(progress_tracker);
cracker.m_shape = shape;
cracker.m_tolerance = tolerance;
cracker.m_bAllowCoincident = allowCoincident;
bool b_res = cracker.NeedsCrackingImpl_();
transform.SetSwapCoordinates();
shape.ApplyTransformation(transform);
// restore shape
if (b_res)
{
if (result != null)
{
result.Assign(cracker.m_non_simple_result);
}
return(true);
}
return(false);
}