/// <summary>
/// 判断点在多边形内（包含凹凸多边形）
/// </summary>
/// <param name="po"></param>
/// <param name="points"></param>
/// <param name="planNorm"></param>
/// <returns></returns>
public static bool IsPointInRegion(XYZ po, List <XYZ> points, XYZ planNorm)
{
bool result = false;
var angles = 0.0;
for (int i = 0; i < points.Count; i++)
{
if (i < points.Count - 1)
{
var curpo = points.ElementAt(i);
var nextpo = points.ElementAt(i + 1);
var line = Line.CreateBound(curpo, nextpo);
if (po.IsOnLine(line))
{
return(true);
}
var angle = Angle(curpo, nextpo, po, planNorm);
//MessageBox.Show(angle.ToString());
angles += angle;
}
else if (i == points.Count - 1)
{
var curpo = points.ElementAt(i);
var nextpo = points.ElementAt(0);
var line = Line.CreateBound(curpo, nextpo);
if (po.IsOnLine(line))
{
return(true);
}
var angle = Angle(curpo, nextpo, po, planNorm);
//MessageBox.Show(angle.ToString());
angles += angle;
}
}
//MessageBox.Show(angles.ToString());
angles = Math.Abs(angles);
if (angles.IsEqual(2 * Math.PI))
{
result = true;
}
else
{
result = false;
}
return(result);
}
/// <summary>
/// 计算∠point1_point0_point2 的角度
/// </summary>
/// <param name="point1"></param>
/// <param name="point2"></param>
/// <param name="point0"></param>
/// <param name="planNorm"></param>
/// <returns></returns>
public static double Angle(XYZ point1, XYZ point2, XYZ point0, XYZ planNorm)
{
var line = Line.CreateBound(point1, point2);
if (point0.IsOnLine(line))
{
throw new Exception("samline Exception");
}
var vec1 = (point1 - point0).Normalize();
var vec2 = (point2 - point0).Normalize();
if (vec1.IsSameDirection(vec2))
{
return(0);
}
else if (vec1.IsOppositeDirection(vec2))
{
return(Math.PI);
}
var normal = default(XYZ);
normal = vec1.CrossProduct(vec2).Normalize();
var angle = vec1.AngleOnPlaneTo(vec2, normal);
if (angle > Math.PI)
{
angle = angle - 2 * Math.PI;
}
return(angle * (normal.DotProduct(planNorm)));
}
public static bool IsPointInRegion(XYZ po, List <XYZ> points, XYZ planNorm)
{
bool result = false;
var angles = 0.0;
for (int i = 0; i < points.Count; i++)
{
if (i < points.Count - 1)
{
var curpo = points.ElementAt(i); // 返回序列中的指定索引处的元素。LINQ命名空间下Enumerable类的方法
var nextpo = points.ElementAt(i + 1);
var line = Line.CreateBound(curpo, nextpo);
if (po.IsOnLine(line))
{
return(true);
}
var angle = Angle(curpo, nextpo, po, planNorm);
angle += angles;
}
else if (i == points.Count - 1)
{
var curpo = points.ElementAt(i);
var nextpo = points.ElementAt(0);
var line = Line.CreateBound(curpo, nextpo);
if (po.IsOnLine(line))
{
return(true);
}
var angle = Angle(curpo, nextpo, po, planNorm);
angles += angle;
}
}
angles = Math.Abs(angles);
if (angles.IsEqual(2 * Math.PI))
{
result = true;
}
else
{
result = false;
}
return(result);
}
public static MEPCurve BreakCurve(this MEPCurve mep, XYZ point)
{
var locationline = mep.LocationLine();
var start = locationline.StartPoint();
var end = locationline.EndPoint();
var executeflag = point.IsOnLine(locationline) && point.DistanceTo(start) > 1d.MetricToFeet() &&
point.DistanceTo(end) > 1d.MetricToFeet();
if (!executeflag)
{
throw new Exception("点不在线上");
}
var doc = mep.Document;
#if Revit2016
return(null);
#endif
#if Revit2019
ElementId result = null;
if (mep is Duct)
{
result = MechanicalUtils.BreakCurve(doc, mep.Id, point);
}
else if (mep is Pipe)
{
result = PlumbingUtils.BreakCurve(doc, mep.Id, point);
}
else if (mep is CableTray)
{
var newline1 = Line.CreateBound(start, point);
var newline2 = Line.CreateBound(point, end);
(mep.Location as LocationCurve).Curve = newline1;
var newcabletray = CableTray.Create(doc, mep.GetTypeId(), point, end, mep.ReferenceLevel.Id);
var para_w = newcabletray.get_Parameter(BuiltInParameter.RBS_CABLETRAY_WIDTH_PARAM);
var para_H = newcabletray.get_Parameter(BuiltInParameter.RBS_CABLETRAY_HEIGHT_PARAM);
para_w.Set(mep.Width);
para_H.Set(mep.Height);
result = newcabletray.Id;
}
return(result.GetElement(doc) as MEPCurve);
#endif
}
public List <FamilyInstance> CutBeam(FamilyInstance beam, XYZ point)
{
var result = new List <FamilyInstance>();
var doc = beam.Document;
var locationcurve = beam.Location as LocationCurve;
var locationline = locationcurve.Curve as Line;
if (locationline == null)
{
return(result);
}
point = point.ProjectToXLine(locationline);
if (point.IsOnLine(locationline))
{
var start = locationline.StartPoint();
var end = locationline.EndPoint();
var line1 = Line.CreateBound(start, point);
var line2 = Line.CreateBound(point, end);
(beam.Location as LocationCurve).Curve = line1;
var copiedBeams = ElementTransformUtils.CopyElement(beam.Document, beam.Id, new XYZ());
var beam2Id = copiedBeams.First();
var beam2 = beam2Id.GetElement(doc) as FamilyInstance;
(beam2.Location as LocationCurve).Curve = line2;
result.Add(beam);
result.Add(beam2);
}
else
{
throw new Exception("point is not on beam,can not cut beam!");
}
return(result);
}
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
var uiapp = commandData.Application;
var uidoc = uiapp.ActiveUIDocument;
var doc = uidoc.Document;
var sel = uidoc.Selection;
var acview = doc.ActiveView;
while (true)
{
try
{
var wireref = sel.PickObject(ObjectType.Element, doc.GetSelectionFilter(m => m is Wire));
var wire = wireref.GetElement(doc) as Wire;
//var connectors = (wire).ConnectorManager.Connectors.PhysicalConToList();
var locationcurve = wire.Location as LocationCurve;
//var con1 = connectors.First();
//var con2 = connectors.Last();
//var origin1 = con1.Origin;
//var origin2 = con2.Origin;
//var dir1 = connectors.First().CoordinateSystem.BasisZ;
//var dir2 = connectors.Last().CoordinateSystem.BasisZ;
//var line1 = Line.CreateUnbound(origin1, dir1);
//var line2 = Line.CreateUnbound(origin2, dir2);
var intersection = default(XYZ);
//if (!(locationcurve.Curve is Line))
//{
// MessageBox.Show("本功能不适应于曲线类型的导线");
//}
var tempoint = sel.PickPoint();
var linefirst = Line.CreateBound(wire.GetVertex(0), wire.GetVertex(1));
var vertexcount = wire.NumberOfVertices;
var linelast = Line.CreateBound(wire.GetVertex(vertexcount - 2), wire.GetVertex(vertexcount - 1));
var globalpoint = wireref.GlobalPoint;
globalpoint = new XYZ(globalpoint.X, globalpoint.Y, linefirst.StartPoint().Z);
if (!globalpoint.IsOnLine(linefirst) && !globalpoint.IsOnLine(linelast))
{
MessageBox.Show("本功能不适应于曲线类型的导线 选择起始端或结束端导线"
//+ Environment.NewLine +
//globalpoint.IsOnLine(linefirst).ToString() + Environment.NewLine +
//globalpoint.IsOnLine(linelast).ToString() + Environment.NewLine +
//globalpoint.ToString() + Environment.NewLine +
//linefirst.StartPoint().ToString() + Environment.NewLine +
//linelast.StartPoint().ToString()
);
continue;
}
Transaction ts1 = new Transaction(doc, "更改导线");
ts1.Start();
if (vertexcount > 2)
{
if (globalpoint.IsOnLine(linefirst))
{
tempoint = tempoint.ProjectToXLine(linefirst);
wire.SetVertex(0, tempoint);
}
else if (globalpoint.IsOnLine(linelast))
{
tempoint = tempoint.ProjectToXLine(linelast);
wire.SetVertex(vertexcount - 1, tempoint);
}
}
else if (vertexcount == 2)
{
var startpo = wire.GetVertex(0);
var endpo = wire.GetVertex(1);
if (globalpoint.DistanceTo(startpo) < globalpoint.DistanceTo(endpo))
{
tempoint = tempoint.ProjectToXLine(linefirst);
wire.SetVertex(0, tempoint);
}
else
{
tempoint = tempoint.ProjectToXLine(linelast);
wire.SetVertex(vertexcount - 1, tempoint);
}
}
ts1.Commit();
}
catch (Exception)
{
break;
}
}
return(Result.Succeeded);
}