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Co-authored-by: croudyj <croudyj@gmail.com>
Co-authored-by: Dale Lear <dalelear@mcneel.com>
Co-authored-by: Greg Arden <greg@mcneel.com>
Co-authored-by: Pierre Cuvilliers <pierre@mcneel.com>
Co-authored-by: Steve Baer <steve@mcneel.com>
This commit is contained in:
Bozo The Builder
2023-05-26 13:16:40 -07:00
parent 78002d48dd
commit ecfa0ff6d7
19 changed files with 836 additions and 488 deletions
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8
opennurbs_arc.cpp
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@@ -296,6 +296,14 @@ bool ON_Arc::IsCircle() const
? true : false;
}
bool ON_Arc::IsLinear(double tol) const
{
static const double Theta_max = 2*ON_PI - 4.0 * atan(.5); // about 250 degrees
return AngleRadians() < Theta_max && // Angle must be less than max
radius * (1.0 - cos(AngleRadians() / 2.0)) < tol && // Segment height less than tol
radius * 2.0 * sin(AngleRadians() / 2.0) > tol; // Chord length greater than tol
}
double ON_Arc::AngleRadians() const
{
return m_angle[1]-m_angle[0];