private double[] GetDirection(IModelDoc2 model, object inputObj)
{
if (inputObj is IFace2)
{
ISurface surf = (inputObj as IFace2).GetSurface() as ISurface;
if (surf.IsCylinder())
{
double[] cylParams = surf.CylinderParams as double[];
return(new double[] { cylParams[3], cylParams[4], cylParams[5] });
}
}
else if (inputObj is IFeature)
{
IRefPlane refPlane = (inputObj as IFeature).GetSpecificFeature2() as IRefPlane;
if (refPlane != null)
{
IMathUtility mathUtils = swApp.GetMathUtility() as IMathUtility;
IMathVector vec = mathUtils.CreateVector(new double[] { 0, 0, 1 }) as IMathVector;
vec = vec.MultiplyTransform(refPlane.Transform) as IMathVector;
return(vec.ArrayData as double[]);
}
}
throw new NullReferenceException("Failed to find the direction. Please select cylindrical face or plane");
}
public static double[] Origin(this IRefPlane plane, IMathUtility math)
{
var transform = plane.Transform;
var originWorld = math.Point(new[] { 0.0, 0, 0 });
return(originWorld.MultiplyTransformTs(transform).ArrayData.CastArray <double>());
}
public static double[] Normal(this IRefPlane plane, IMathUtility math)
{
var transform = plane.Transform;
var normalWorld = math.Vector(new[] { 0.0, 0, 1 });
return(normalWorld.MultiplyTransformTs(transform).ArrayData.CastArray <double>());
}
/// <summary>
/// 获取基准面原点
/// </summary>
/// <param name="plane"></param>
/// <param name="math"></param>
/// <returns></returns>
public static double[] Origin(this IRefPlane plane, IMathUtility math)
{
var transform = plane.Transform;
var originWorld = math.CreatePoint(new[] { 0.0, 0, 0 }) as MathVector;
return(((MathTransform)originWorld.MultiplyTransform(transform)).ArrayData as double[]);
}
/// <summary>
/// 获取基准面的法向量
/// </summary>
/// <param name="plane"></param>
/// <param name="math"></param>
/// <returns></returns>
public static double[] Normal(this IRefPlane plane, IMathUtility math)
{
var transform = plane.Transform;
var normalWorld = math.CreateVector(new[] { 0.0, 0, 1 }) as MathVector;
return(((MathTransform)normalWorld.MultiplyTransform(transform)).ArrayData as double[]);
}
public static bool PlaneOriginAndNormalEquals(this IRefPlane p,
IMathUtility math,
double[] origin,
double[] normal,
double tol)
{
return(PlaneOriginEquals(p, math, origin, tol) &&
PlaneNormalEquals(p, math, normal, tol));
}
public IRefPlaneObject(IRefPlane IRefPlaneinstance)
{
IRefPlaneInstance = IRefPlaneinstance;
}
public static bool PlaneNormalEquals(this IRefPlane p, IMathUtility mathUtility, double[] normal, double tol)
{
return(MathPointExtensions.Equals(mathUtility.Vector(p.Normal(mathUtility)), mathUtility.Vector(normal), tol));
}
public static bool PlaneOriginEquals(this IRefPlane p, IMathUtility mathUtility, double[] origin, double tol)
{
return(MathPointExtensions.Equals(mathUtility.Point(p.Origin(mathUtility)), mathUtility.Point(origin), tol));
}
internal SwPlane(IFeature feat, ISwDocument doc, ISwApplication app, bool created) : base(feat, doc, app, created)
{
m_RefPlane = feat.GetSpecificFeature2() as IRefPlane;
m_MathUtils = OwnerApplication.Sw.IGetMathUtility();
}
/// <summary>
/// 获取平面的点法式
/// </summary>
/// <param name="plane"></param>
/// <param name="math"></param>
/// <returns></returns>
public static PointDirection3 GetPointDirection3(this IRefPlane plane, IMathUtility math)
{
return(new PointDirection3(new Vector3(plane.Normal(math)), new Vector3(plane.Origin(math))));
}