/// <summary>
/// Create the CorbelFrame object with the given trapezoid face, corbel and its host information.
/// </summary>
/// <param name="corbel">Corbel instance</param>
/// <param name="depthEdge">Depth Edge which is vertical with trapezoid face</param>
/// <param name="leftEdge">Left edge of trapezoid</param>
/// <param name="bottomEdge">Bottom edge of trapezoid</param>
/// <param name="rightEdge">Right edge of trapezoid</param>
/// <param name="topEdge">Top edge of trapezoid</param>
/// <param name="revitDoc">Revit Document</param>
/// <param name="trapezoidFace">Trapezoid Face</param>
/// <param name="hostDepth">Corbel Host depth</param>
/// <param name="hostTopCoverDistance">Corbel Host Top face cover distance</param>
/// <returns>CorbelFrame object</returns>
private static CorbelFrame ConstructCorbelFrame(
FamilyInstance corbel,
Edge depthEdge, Edge leftEdge, Edge bottomEdge, Edge rightEdge, Edge topEdge,
Document revitDoc, PlanarFace trapezoidFace,
double hostDepth, double hostTopCoverDistance)
{
XYZ leftEdgeDir = (leftEdge.Evaluate(1.0) - leftEdge.Evaluate(0.0)).Normalize();
XYZ leftEdgeV0 = leftEdge.Evaluate(0.0);
Line leftEdgeLine = Line.get_Unbound(leftEdgeV0, leftEdgeDir);
XYZ rightEdgeDir = (rightEdge.Evaluate(1.0) - rightEdge.Evaluate(0.0)).Normalize();
XYZ rightEdgeV0 = rightEdge.Evaluate(0.0);
Line rightEdgeLine = Line.get_Unbound(rightEdgeV0, rightEdgeDir);
XYZ topEdgeDir = (topEdge.Evaluate(1.0) - topEdge.Evaluate(0.0)).Normalize();
XYZ topEdgeV0 = topEdge.Evaluate(0.0);
Line topEdgeLine = Line.get_Unbound(topEdgeV0, topEdgeDir);
IntersectionResultArray intersections;
topEdgeLine.Intersect(leftEdgeLine, out intersections);
XYZ prevX = intersections.get_Item(0).XYZPoint;
topEdgeLine.Intersect(rightEdgeLine, out intersections);
XYZ nextX = intersections.get_Item(0).XYZPoint;
XYZ edgeV0 = GetCommonVertex(bottomEdge, leftEdge);
XYZ edgeV1 = GetCommonVertex(bottomEdge, rightEdge);
Line topBoundLine = Line.get_Bound(nextX, prevX);
Line leftBoundLine = Line.get_Bound(prevX, edgeV0);
Line bottomBoundLine = Line.get_Bound(edgeV0, edgeV1);
Line rightBoundLine = Line.get_Bound(edgeV1, nextX);
Trapezoid profile = new Trapezoid(topBoundLine, leftBoundLine, bottomBoundLine, rightBoundLine);
XYZ depthEdgeV0 = depthEdge.Evaluate(0.0);
XYZ depthEdgeV1 = depthEdge.Evaluate(1.0);
Line depthLine = null;
if (depthEdgeV0.IsAlmostEqualTo(edgeV0))
{
depthLine = Line.get_Bound(depthEdgeV0, depthEdgeV1);
}
else if (depthEdgeV1.IsAlmostEqualTo(edgeV0))
{
depthLine = Line.get_Bound(depthEdgeV1, depthEdgeV0);
}
CorbelFrame frame = new CorbelFrame(corbel, profile, depthLine, hostDepth, hostTopCoverDistance);
return(frame);
}
///<summary>
/// Implement this method as an external command for Revit.
/// </summary>
/// <param name="commandData">An object that is passed to the external application
/// which contains data related to the command,
/// such as the application object and active view.</param>
/// <param name="message">A message that can be set by the external application
/// which will be displayed if a failure or cancellation is returned by
/// the external command.</param>
/// <param name="elements">A set of elements to which the external application
/// can add elements that are to be highlighted in case of failure or cancellation.</param>
/// <returns>Return the status of the external command.
/// A result of Succeeded means that the API external method functioned as expected.
/// Cancelled can be used to signify that the user cancelled the external operation
/// at some point. Failure should be returned if the application is unable to proceed with
/// the operation.</returns>
public Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData,
ref string message, Autodesk.Revit.DB.ElementSet elements)
{
// A List to store the Corbels which are suitable to be reinforced.
List <CorbelFrame> corbelsToReinforce = new List <CorbelFrame>();
// Filter out the Corbels which can be reinforced by this sample
// from the selected elements.
ElementSet elems = new ElementSet();
foreach (ElementId elementId in commandData.Application.ActiveUIDocument.Selection.GetElementIds())
{
elems.Insert(commandData.Application.ActiveUIDocument.Document.GetElement(elementId));
}
foreach (Element elem in elems)
{
FamilyInstance corbel = elem as FamilyInstance;
// Make sure it's a Corbel firstly.
if (corbel != null && IsCorbel(corbel))
{
try
{
// If the Corbel is sloped, this should return a non-null object.
CorbelFrame frame = CorbelFrame.Parse(corbel);
corbelsToReinforce.Add(frame);
}
// If the Corbel is not sloped, it will throw exception.
catch (System.Exception ex)
{
// Collect the error message, in case there is no any suitable corbel to be reinforced,
// Let user know what's happened.
message += ex.ToString();
}
}
}
// Check to see if there is any Corbel to be reinforced.
if (corbelsToReinforce.Count == 0)
{
// If there is no suitable Corbel to be reinforced, prompt a message.
if (string.IsNullOrEmpty(message))
{
message += "Please select sloped corbels.";
}
// Return cancelled for invalid selection.
return(Result.Cancelled);
}
// Show a model dialog to get Rebar creation options.
Document revitDoc = commandData.Application.ActiveUIDocument.Document;
CorbelReinforcementOptions reinforcementOptions = new CorbelReinforcementOptions(revitDoc);
using (CorbelReinforcementOptionsForm reinforcementOptionsForm =
new CorbelReinforcementOptionsForm(reinforcementOptions))
{
if (reinforcementOptionsForm.ShowDialog() == DialogResult.Cancel)
{
// Cancelled by user.
return(Result.Cancelled);
}
}
// Encapsulate operation "Reinforce Corbels" into one transaction.
Transaction reinforceTransaction = new Transaction(revitDoc);
try
{
// Start the transaction.
reinforceTransaction.Start("Reinforce Corbels");
// Reinforce all the corbels in list.
foreach (CorbelFrame corbel in corbelsToReinforce)
{
// Reinforce the sloped Corbel.
corbel.Reinforce(reinforcementOptions);
}
// Submit the transaction
reinforceTransaction.Commit();
}
catch (System.Exception ex)
{
// Rollback the transaction for any exception.
reinforceTransaction.RollBack();
message += ex.ToString();
// Return failed for any exception.
return(Result.Failed);
}
// No any error, return succeeded.
return(Result.Succeeded);
}
/// <summary>
/// Create the CorbelFrame object with the given trapezoid face, corbel and its host information.
/// </summary>
/// <param name="corbel">Corbel instance</param>
/// <param name="depthEdge">Depth Edge which is vertical with trapezoid face</param>
/// <param name="leftEdge">Left edge of trapezoid</param>
/// <param name="bottomEdge">Bottom edge of trapezoid</param>
/// <param name="rightEdge">Right edge of trapezoid</param>
/// <param name="topEdge">Top edge of trapezoid</param>
/// <param name="revitDoc">Revit Document</param>
/// <param name="trapezoidFace">Trapezoid Face</param>
/// <param name="hostDepth">Corbel Host depth</param>
/// <param name="hostTopCoverDistance">Corbel Host Top face cover distance</param>
/// <returns>CorbelFrame object</returns>
private static CorbelFrame ConstructCorbelFrame(
FamilyInstance corbel,
Edge depthEdge, Edge leftEdge, Edge bottomEdge, Edge rightEdge, Edge topEdge,
Document revitDoc, PlanarFace trapezoidFace,
double hostDepth, double hostTopCoverDistance)
{
XYZ leftEdgeDir = (leftEdge.Evaluate(1.0) - leftEdge.Evaluate(0.0)).Normalize();
XYZ leftEdgeV0 = leftEdge.Evaluate(0.0);
Line leftEdgeLine = Line.get_Unbound(leftEdgeV0, leftEdgeDir);
XYZ rightEdgeDir = (rightEdge.Evaluate(1.0) - rightEdge.Evaluate(0.0)).Normalize();
XYZ rightEdgeV0 = rightEdge.Evaluate(0.0);
Line rightEdgeLine = Line.get_Unbound(rightEdgeV0, rightEdgeDir);
XYZ topEdgeDir = (topEdge.Evaluate(1.0) - topEdge.Evaluate(0.0)).Normalize();
XYZ topEdgeV0 = topEdge.Evaluate(0.0);
Line topEdgeLine = Line.get_Unbound(topEdgeV0, topEdgeDir);
IntersectionResultArray intersections;
topEdgeLine.Intersect(leftEdgeLine, out intersections);
XYZ prevX = intersections.get_Item(0).XYZPoint;
topEdgeLine.Intersect(rightEdgeLine, out intersections);
XYZ nextX = intersections.get_Item(0).XYZPoint;
XYZ edgeV0 = GetCommonVertex(bottomEdge, leftEdge);
XYZ edgeV1 = GetCommonVertex(bottomEdge, rightEdge);
Line topBoundLine = Line.get_Bound(nextX, prevX);
Line leftBoundLine = Line.get_Bound(prevX, edgeV0);
Line bottomBoundLine = Line.get_Bound(edgeV0, edgeV1);
Line rightBoundLine = Line.get_Bound(edgeV1, nextX);
Trapezoid profile = new Trapezoid(topBoundLine, leftBoundLine, bottomBoundLine, rightBoundLine);
XYZ depthEdgeV0 = depthEdge.Evaluate(0.0);
XYZ depthEdgeV1 = depthEdge.Evaluate(1.0);
Line depthLine = null;
if (depthEdgeV0.IsAlmostEqualTo(edgeV0))
{
depthLine = Line.get_Bound(depthEdgeV0, depthEdgeV1);
}
else if (depthEdgeV1.IsAlmostEqualTo(edgeV0))
{
depthLine = Line.get_Bound(depthEdgeV1, depthEdgeV0);
}
CorbelFrame frame = new CorbelFrame(corbel, profile, depthLine, hostDepth, hostTopCoverDistance);
return frame;
}