/// <summary>
/// Calculates the area of an object
/// </summary>
public static double GetArea(IRhinoObject obj, double tol)
{
if (null != obj)
{
IOnCurve crv = OnCurve.ConstCast(obj.Geometry());
if (null != crv)
{
return(GetCurveArea(crv, tol));
}
IOnSurface srf = OnSurface.ConstCast(obj.Geometry());
if (null != srf)
{
return(GetSurfaceArea(srf));
}
IOnBrep brep = OnBrep.ConstCast(obj.Geometry());
if (null != brep)
{
return(GetBrepArea(brep));
}
IOnMesh mesh = OnMesh.ConstCast(obj.Geometry());
if (null != mesh)
{
return(GetMeshArea(mesh));
}
}
return(0.0);
}
public override bool CustomGeometryFilter(IRhinoObject obj, IOnGeometry geo, OnCOMPONENT_INDEX ci)
{
if (geo != null)
{
IOnCurve crv = OnCurve.ConstCast(geo);
if (crv != null)
{
if (crv.IsClosed() && crv.IsPlanar())
{
return(true);
}
else
{
return(false);
}
}
IOnBrep brep = OnBrep.ConstCast(geo);
if (brep != null)
{
if (brep.m_F.Count() == 1)
{
return(true);
}
else
{
return(false);
}
}
IOnSurface srf = OnSurface.ConstCast(geo);
if (srf != null)
{
return(true);
}
IOnMesh mesh = OnMesh.ConstCast(geo);
if (mesh != null)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Calculates the volume of an object
/// </summary>
public static double GetVolume(IRhinoObject obj)
{
if (null != obj && obj.IsSolid())
{
IOnSurface srf = OnSurface.ConstCast(obj.Geometry());
if (null != srf)
{
return(GetSurfaceVolume(srf));
}
IOnBrep brep = OnBrep.ConstCast(obj.Geometry());
if (null != brep)
{
return(GetBrepVolume(brep));
}
IOnMesh mesh = OnMesh.ConstCast(obj.Geometry());
if (null != mesh)
{
return(GetMeshVolume(mesh));
}
}
return(0.0);
}
