| public static FindMidPoint ( Autodesk first, Autodesk second ) : Autodesk.Revit.DB.XYZ | ||
| first | Autodesk | the start point of the line |
| second | Autodesk | the end point of the line |
| Résultat | Autodesk.Revit.DB.XYZ | |
/// <summary>
/// Generate a Transform instance which as Transform property of BoundingBoxXYZ,
/// when the user select a wall, this method will be called
/// </summary>
/// <returns>the reference of Transform, return null if it can't be generated</returns>
Transform GenerateWallTransform()
{
Transform transform = null;
Wall wall = m_currentComponent as Wall;
// Because the architecture wall and curtain wall don't have analytical Model lines.
// So Use Location property of wall object is better choice.
// First get the location line of the wall
LocationCurve location = wall.Location as LocationCurve;
Line locationLine = location.Curve as Line;
transform = Transform.Identity;
// Second find the middle point of the wall and set it as Origin property.
XYZ mPoint = XYZMath.FindMidPoint(locationLine.GetEndPoint(0), locationLine.GetEndPoint(1));
// midPoint is mid point of the wall location, but not the wall's.
// The different is the elevation of the point. Then change it.
Autodesk.Revit.DB.XYZ midPoint = new XYZ(mPoint.X, mPoint.Y, mPoint.Z + GetWallMidOffsetFromLocation(wall));
transform.Origin = midPoint;
// At last find out the directions of the created view, and set it as Basis property.
Autodesk.Revit.DB.XYZ basisZ = XYZMath.FindDirection(locationLine.GetEndPoint(0), locationLine.GetEndPoint(1));
Autodesk.Revit.DB.XYZ basisX = XYZMath.FindRightDirection(basisZ);
Autodesk.Revit.DB.XYZ basisY = XYZMath.FindUpDirection(basisZ);
transform.set_Basis(0, basisX);
transform.set_Basis(1, basisY);
transform.set_Basis(2, basisZ);
return(transform);
}
/// <summary>
/// Generate a Transform instance which as Transform property of BoundingBoxXYZ,
/// when the user select a beam, this method will be called
/// </summary>
/// <returns>the reference of Transform, return null if it can't be generated</returns>
Transform GenerateBeamTransform()
{
Transform transform = null;
FamilyInstance instance = m_currentComponent as FamilyInstance;
// First check whether the beam is horizontal.
// In order to predigest the calculation, only allow it to be horizontal
double startOffset = instance.get_Parameter(BuiltInParameter.STRUCTURAL_BEAM_END0_ELEVATION).AsDouble();
double endOffset = instance.get_Parameter(BuiltInParameter.STRUCTURAL_BEAM_END1_ELEVATION).AsDouble();
if (-PRECISION > startOffset - endOffset || PRECISION < startOffset - endOffset)
{
m_errorInformation = "Please select a horizontal beam.";
return(transform);
}
// Second get the Analytical Model line.
AnalyticalModel model = instance.GetAnalyticalModel();
if (null == model)
{
m_errorInformation = "The selected beam doesn't have Analytical Model line.";
return(transform);
}
Curve curve = model.GetCurve();
if (null == curve)
{
m_errorInformation = "The program should never go here.";
return(transform);
}
// Now I am sure I can create a transform instance.
transform = Transform.Identity;
// Third find the middle point of the line and set it as Origin property.
Autodesk.Revit.DB.XYZ startPoint = curve.GetEndPoint(0);
Autodesk.Revit.DB.XYZ endPoint = curve.GetEndPoint(1);
Autodesk.Revit.DB.XYZ midPoint = XYZMath.FindMidPoint(startPoint, endPoint);
transform.Origin = midPoint;
// At last find out the directions of the created view, and set it as Basis property.
Autodesk.Revit.DB.XYZ basisZ = XYZMath.FindDirection(startPoint, endPoint);
Autodesk.Revit.DB.XYZ basisX = XYZMath.FindRightDirection(basisZ);
Autodesk.Revit.DB.XYZ basisY = XYZMath.FindUpDirection(basisZ);
transform.set_Basis(0, basisX);
transform.set_Basis(1, basisY);
transform.set_Basis(2, basisZ);
return(transform);
}
