Create Solid from boundingbox
Do you want to generate a persistent Revit database element?
If so, the simplest solution is almost certainly to use a DirectShape element:
http://thebuildingcoder.typepad.com/blog/about-the-author.html#5.50
Cheers,
Jeremy
Dear Owen,
Thank you very much for your nice little sample code snippet.
I will gladly add it to The Building Coder samples, if I may.
Do you have a sample use case to demonstrate it doing something handy in a simple external command?
Thank you!
Cheers,
Jeremy
Upon selecting the planar face of a solid, two new solids are created - the two halves of the bounding box of the original, split by the plane of the selected face.
Hi Jeremy,
Here's a simplified version of how I'm using the bounding box code from yesterday. Whether this command meets the definition of "doing something handy" is debatable, but it's at least a functional command. I'm working on solid modeling tools for working with non-parametric masses using somewhat different formal logic than the built-in "form" tools. The step demo'd here is really just one piece of construction geometry on the way to a more complex, yet-unfinished tool, but it illustrates a few useful functions:
- from user face selection, retrieve both the face and the solid
- from solid, generate solid of bounding box
- insert solid into family context
This draws _very_ heavily on the sample code provided with the SDK, particularly the FreeFormElement sample and planar face selection filter.
For the sample code I copied the relevant bits into a fresh addin and zipped the whole thing up. This has the source, working(for me) .dll and sample image and rfa in the "doc" folder.
Best,
Owen
Wonderful, thank you ever so much for the perfect sample!
I summarised, polished and published this thread on The Building Coder:
http://thebuildingcoder.typepad.com/blog/2016/09/solid-from-bounding-box-and-forge-webinar-4.html#2
Cheers,
Jeremy
namespace SizeAdjustment
{
[Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
public class WindowDoorOpening : IExternalCommand
{
public Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData,
ref string message, ElementSet elements)
{
UIApplication uIApp = commandData.Application;
Application application = uIApp.Application;
UIDocument uIDoc = uIApp.ActiveUIDocument;
Document document = uIDoc.Document;
Selection selection = uIDoc.Selection;
View view = uIDoc.ActiveView;
//【】过滤墙体 用户选择
IList<Element> faces = uIDoc.Selection.PickElementsByRectangle();
Transaction trans = new Transaction(document, "LS");
trans.Start();
var solid = solidBoundingBox(view, faces.First());
var ds7 = DirectShape.CreateElement(document, new ElementId(BuiltInCategory.OST_GenericModel));
ds7.GetGeneratingElementIds(solid);
ds7.SetShape(new List<GeometryObject>() { solid });
trans.Commit();
return Result.Succeeded;
}
public static Solid solidBoundingBox(View view,Element inputSolid)
{
BoundingBoxXYZ bbox = inputSolid.get_BoundingBox(view);
// corners in BBox coords
XYZ pt0 = new XYZ(bbox.Min.X, bbox.Min.Y, bbox.Min.Z);
XYZ pt1 = new XYZ(bbox.Max.X, bbox.Min.Y, bbox.Min.Z);
XYZ pt2 = new XYZ(bbox.Max.X, bbox.Max.Y, bbox.Min.Z);
XYZ pt3 = new XYZ(bbox.Min.X, bbox.Max.Y, bbox.Min.Z);
//edges in BBox coords
Line edge0 = Line.CreateBound(pt0, pt1);
Line edge1 = Line.CreateBound(pt1, pt2);
Line edge2 = Line.CreateBound(pt2, pt3);
Line edge3 = Line.CreateBound(pt3, pt0);
//create loop, still in BBox coords
List<Curve> edges = new List<Curve>();
edges.Add(edge0);
edges.Add(edge1);
edges.Add(edge2);
edges.Add(edge3);
Double height = bbox.Max.Z - bbox.Min.Z;
CurveLoop baseLoop = CurveLoop.Create(edges);
List<CurveLoop> loopList = new List<CurveLoop>();
loopList.Add(baseLoop);
Solid preTransformBox = GeometryCreationUtilities.CreateExtrusionGeometry(loopList, XYZ.BasisZ, height);
Solid transformBox = SolidUtils.CreateTransformed(preTransformBox, bbox.Transform);
return transformBox;
}
}
}