/// <summary>
/// Get the singleton instance of GeometryCreation
/// </summary>
/// <param name="app">Revit application</param>
/// <returns>The singleton instance of GeometryCreation</returns>
public static GeometryCreation getInstance(Autodesk.Revit.ApplicationServices.Application app)
{
if (Instance == null)
{
Instance = new GeometryCreation(app);
}
return(Instance);
}
/// <summary>
/// Create a constructive solid geometry - CSG tree
/// http://en.wikipedia.org/wiki/Constructive_solid_geometry
/// http://en.wikipedia.org/wiki/File:Csg_tree.png
/// </summary>
/// <param name="geometrycreation">The object that is responsible for creating the solids</param>
/// <param name="avf">The object that is responsible for displaying the solids</param>
private void CSGTree(GeometryCreation geometrycreation, AnalysisVisualizationFramework avf)
{
List <Solid> materialSolids = prepareSolids(geometrycreation);
// Operation 1 : Intersect
Solid CSGTree_solid1 = BooleanOperation.BooleanOperation_Intersect(materialSolids[0], materialSolids[1]);
// Operation 2 : Union
Solid CSGTree_solid2 = BooleanOperation.BooleanOperation_Union(materialSolids[2], materialSolids[3]);
// Operation 3 : Union
BooleanOperation.BooleanOperation_Union(ref CSGTree_solid2, materialSolids[4]);
// Operation 4 : Difference
BooleanOperation.BooleanOperation_Difference(ref CSGTree_solid1, CSGTree_solid2);
avf.PaintSolid(CSGTree_solid1, "CSGTree");
}
/// <summary>
/// Prepare 5 solids materials for CSG tree
/// </summary>
/// <param name="geometrycreation">The object that is responsible for creating the solids</param>
/// <returns>The solids materials list</returns>
private List <Solid> prepareSolids(GeometryCreation geometrycreation)
{
List <Solid> resultSolids = new List <Solid>();
resultSolids.Add(geometrycreation.CreateCenterbasedBox(Autodesk.Revit.DB.XYZ.Zero, 25));
resultSolids.Add(geometrycreation.CreateCenterbasedSphere(Autodesk.Revit.DB.XYZ.Zero, 20));
resultSolids.Add(geometrycreation.CreateCenterbasedCylinder(Autodesk.Revit.DB.XYZ.Zero, 5, 40,
GeometryCreation.CylinderDirection.BasisX));
resultSolids.Add(geometrycreation.CreateCenterbasedCylinder(Autodesk.Revit.DB.XYZ.Zero, 5, 40,
GeometryCreation.CylinderDirection.BasisY));
resultSolids.Add(geometrycreation.CreateCenterbasedCylinder(Autodesk.Revit.DB.XYZ.Zero, 5, 40,
GeometryCreation.CylinderDirection.BasisZ));
return(resultSolids);
}
/// <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 virtual Result Execute(ExternalCommandData commandData
, ref string message, ElementSet elements)
{
try
{
Autodesk.Revit.DB.Document document = commandData.Application.ActiveUIDocument.Document;
// Create a new transaction
Transaction tran = new Transaction(document, "GeometryCreation_BooleanOperation");
tran.Start();
// Create an object that is responsible for creating the solids
GeometryCreation geometryCreation = GeometryCreation.getInstance(commandData.Application.Application);
// Create an object that is responsible for displaying the solids
AnalysisVisualizationFramework AVF = AnalysisVisualizationFramework.getInstance(document);
// Create a CSG tree solid
CSGTree(geometryCreation, AVF);
tran.Commit();
// Set the view which display the solid active
commandData.Application.ActiveUIDocument.ActiveView =
(((new FilteredElementCollector(document).
OfClass(typeof(Autodesk.Revit.DB.View))).
Cast <Autodesk.Revit.DB.View>()).
Where(e => e.Name == "CSGTree")).
First <Autodesk.Revit.DB.View>();
return(Result.Succeeded);
}
catch (Exception ex)
{
message = ex.Message;
return(Result.Failed);
}
}
/// <summary>
/// Get the singleton instance of GeometryCreation
/// </summary>
/// <param name="app">Revit application</param>
/// <returns>The singleton instance of GeometryCreation</returns>
public static GeometryCreation getInstance(Autodesk.Revit.ApplicationServices.Application app)
{
if (Instance == null)
{
Instance = new GeometryCreation(app);
}
return Instance;
}
/// <summary>
/// Prepare 5 solids materials for CSG tree
/// </summary>
/// <param name="geometrycreation">The object that is responsible for creating the solids</param>
/// <returns>The solids materials list</returns>
private List<Solid> prepareSolids(GeometryCreation geometrycreation)
{
List<Solid> resultSolids = new List<Solid>();
resultSolids.Add(geometrycreation.CreateCenterbasedBox(Autodesk.Revit.DB.XYZ.Zero, 25));
resultSolids.Add(geometrycreation.CreateCenterbasedSphere(Autodesk.Revit.DB.XYZ.Zero, 20));
resultSolids.Add(geometrycreation.CreateCenterbasedCylinder(Autodesk.Revit.DB.XYZ.Zero, 5, 40,
GeometryCreation.CylinderDirection.BasisX));
resultSolids.Add(geometrycreation.CreateCenterbasedCylinder(Autodesk.Revit.DB.XYZ.Zero, 5, 40,
GeometryCreation.CylinderDirection.BasisY));
resultSolids.Add(geometrycreation.CreateCenterbasedCylinder(Autodesk.Revit.DB.XYZ.Zero, 5, 40,
GeometryCreation.CylinderDirection.BasisZ));
return resultSolids;
}
/// <summary>
/// Create a constructive solid geometry - CSG tree
/// http://en.wikipedia.org/wiki/Constructive_solid_geometry
/// http://en.wikipedia.org/wiki/File:Csg_tree.png
/// </summary>
/// <param name="geometrycreation">The object that is responsible for creating the solids</param>
/// <param name="avf">The object that is responsible for displaying the solids</param>
private void CSGTree(GeometryCreation geometrycreation, AnalysisVisualizationFramework avf)
{
List<Solid> materialSolids = prepareSolids(geometrycreation);
// Operation 1 : Intersect
Solid CSGTree_solid1 = BooleanOperation.BooleanOperation_Intersect(materialSolids[0], materialSolids[1]);
// Operation 2 : Union
Solid CSGTree_solid2 = BooleanOperation.BooleanOperation_Union(materialSolids[2], materialSolids[3]);
// Operation 3 : Union
BooleanOperation.BooleanOperation_Union(ref CSGTree_solid2, materialSolids[4]);
// Operation 4 : Difference
BooleanOperation.BooleanOperation_Difference(ref CSGTree_solid1, CSGTree_solid2);
avf.PaintSolid(CSGTree_solid1, "CSGTree");
}