/// <summary>
/// Create a column.
/// </summary>
/// <param name="curve">The curve which defines the center line of the column.</param>
/// <param name="level">The level with which you'd like the column to be associated.</param>
/// <param name="structuralColumnType">The structural column type representing the column.</param>
/// <returns></returns>
public static StructuralFraming ColumnByCurve(
Autodesk.DesignScript.Geometry.Curve curve, Revit.Elements.Level level, Revit.Elements.FamilyType structuralColumnType)
{
if (curve == null)
{
throw new System.ArgumentNullException("curve");
}
if (level == null)
{
throw new System.ArgumentNullException("level");
}
if (structuralColumnType == null)
{
throw new System.ArgumentNullException("structuralColumnType");
}
var start = curve.PointAtParameter(0);
var end = curve.PointAtParameter(1);
// Revit will throw an exception if you attempt to create a column whose
// base is above its top.
if (end.Z <= start.Z)
{
throw new Exception(Properties.Resources.InvalidColumnBaseLocation);
}
return(new StructuralFraming(curve.ToRevitType(), level.InternalLevel, Autodesk.Revit.DB.Structure.StructuralType.Column, structuralColumnType.InternalFamilySymbol));
}
/// <summary>
/// Creates a vector between the midpoint of two curves
/// </summary>
/// <param name="crv1"></param>
/// <param name="crv2"></param>
/// <search></search>
public static Autodesk.DesignScript.Geometry.Vector ByTwoCurves(this Autodesk.DesignScript.Geometry.Curve crv1, Autodesk.DesignScript.Geometry.Curve crv2)
{
Autodesk.DesignScript.Geometry.Point pt1 = crv1.PointAtParameter(0.5);
Autodesk.DesignScript.Geometry.Point pt2 = crv2.PointAtParameter(0.5);
Autodesk.DesignScript.Geometry.Vector vec = Autodesk.DesignScript.Geometry.Vector.ByTwoPoints(pt1, pt2);
pt1.Dispose();
pt2.Dispose();
return(vec);
}
/// <summary>
/// 判断两条曲线相等(通过两条曲线上的点来判断精确度越高判断越准确
/// </summary>
/// <param name="curve"></param>
/// <param name="curve2"></param>
/// <param name="Accuracy"></param>
/// <returns></returns>
public static bool IsAlmostEqualsTo(this DyCurve curve, DyCurve curve2, int Accuracy = 100)
{
//判断从0到1的 分段点上 点相等 而且 所在点的切线平行
double accuracyPercent = -1;
if (Accuracy == 0)
{
throw new Exception("wrong parameter");
}
for (int i = 0; i <= Accuracy; i++)
{
accuracyPercent = i == 0?0:i / Accuracy;
if (!curve.PointAtParameter(accuracyPercent).IsAlmostEqualTo(curve2.PointAtParameter(accuracyPercent)) ||
!curve.TangentAtParameter(accuracyPercent).IsParallel(curve2.TangentAtParameter(accuracyPercent))
)
{
return(false);
}
}
return(true);
}
/// <summary>
/// 获取点
/// </summary>
/// <param name="curve"></param>
/// <param name="t"></param>
/// <returns></returns>
public static Autodesk.DesignScript.Geometry.Point GetPoint(Autodesk.DesignScript.Geometry.Curve curve, double t)
{
return(curve.PointAtParameter(t));
}
