Merge pull request #259 from specklesystems/revit-levels

feat(objects): adds level to revitobject

src/Speckle.Objects/Data/RevitObject.cs

@@ -12,6 +12,13 @@ public class RevitObject : DataObject, IRevitObject
   public required string family { get; set; }
   public required string category { get; set; }
 
+  /// <summary>
+  /// The level constraint of the object.
+  /// For objects constrained by multiple levels, this represents the base constraint.
+  /// For objects with no level constraint, this should be null.
+  /// </summary>
+  public required string? level { get; set; }
+
   /// <summary>
   /// A Curve or Point object representing the location of a Revit element.
   /// </summary>

src/Speckle.Objects/Geometry/Region.cs

@@ -0,0 +1,97 @@
+using Speckle.Objects.Other;
+using Speckle.Sdk.Common;
+using Speckle.Sdk.Models;
+
+namespace Speckle.Objects.Geometry;
+
+/// <summary>
+/// Flat polygon, defined by an outer boundary and inner loops.
+/// </summary>
+[SpeckleType("Objects.Geometry.Region")]
+public class Region : Base, IHasArea, IHasBoundingBox, ITransformable, IDisplayValue<List<Mesh>>
+{
+  /// <summary>
+  /// Boundary of a region.
+  /// Should be a planar, closed, non-self-intersecting ICurve.
+  /// </summary>
+  public required ICurve boundary { get; set; }
+
+  /// <summary>
+  /// Loops (voids) in the region.
+  /// Each loop should be planar, closed, non-self-intersecting ICurve, located inside the boundary.
+  /// The loops should not intersect or touch each other.
+  /// </summary>
+  public required List<ICurve> innerLoops { get; set; } = new();
+
+  /// <summary>
+  /// The units of object's coordinates.
+  /// This should be one of <see cref="Units"/>
+  /// </summary>
+  public required string units { get; set; }
+
+  /// <summary>
+  /// Indication whether the region is just a geometry (false) or has a hatch pattern (true).
+  /// It's a distinction for receiving in apps that support both Region and Hatch (aka region with hatch pattern)
+  /// </summary>
+  public required bool hasHatchPattern { get; set; }
+
+  /// <inheritdoc/>
+  public double area { get; set; }
+
+  /// <inheritdoc/>
+  public Box? bbox { get; set; }
+
+  /// <inheritdoc/>
+  [DetachProperty]
+  public List<Mesh> displayValue { get; set; } = new();
+
+  /// <inheritdoc/>
+  public bool TransformTo(Transform transform, out ITransformable transformed)
+  {
+    // assign self to the returned object, in case transformation fails
+    transformed = this;
+
+    // transform boundary
+    if (boundary is ITransformable boundaryTransformable)
+    {
+      boundaryTransformable.TransformTo(transform, out ITransformable transformedBoundaryResult);
+      var transformedBoundary = (ICurve)transformedBoundaryResult;
+
+      // transform inner loops
+      var transformedLoops = new List<ICurve>();
+      foreach (var loop in innerLoops)
+      {
+        if (loop is ITransformable loopTransformable)
+        {
+          loopTransformable.TransformTo(transform, out ITransformable transformedLoop);
+          transformedLoops.Add((ICurve)transformedLoop);
+        }
+        else
+        {
+          return false;
+        }
+      }
+
+      // transform display meshes
+      var transformedMeshes = new List<Mesh>();
+      foreach (var mesh in displayValue)
+      {
+        mesh.TransformTo(transform, out ITransformable transformedMesh);
+        transformedMeshes.Add((Mesh)transformedMesh);
+      }
+
+      // if boundary and loops transformations succeeded
+      transformed = new Region
+      {
+        boundary = transformedBoundary,
+        innerLoops = transformedLoops,
+        hasHatchPattern = hasHatchPattern,
+        displayValue = transformedMeshes,
+        units = units,
+      };
+      return true;
+    }
+
+    return false;
+  }
+}