/// <summary>
/// Add all plan view boundary loops from
/// given solid to the list of loops.
/// The creation application argument is used to
/// reverse the extrusion analyser output curves
/// in case they are badly oriented.
/// </summary>
/// <returns>Number of loops added</returns>
static int AddLoops(
Autodesk.Revit.Creation.Application creapp,
JtLoops loops,
GeometryObject obj,
ref int nExtrusionAnalysisFailures)
{
int nAdded = 0;
Solid solid = obj as Solid;
if (null != solid &&
0 < solid.Faces.Size)
{
//Plane plane = new Plane(XYZ.BasisX,
// XYZ.BasisY, XYZ.Zero); // 2016
Plane plane = Plane.CreateByOriginAndBasis(
XYZ.Zero, XYZ.BasisX, XYZ.BasisY); // 2017
ExtrusionAnalyzer extrusionAnalyzer = null;
try
{
extrusionAnalyzer = ExtrusionAnalyzer.Create(
solid, plane, XYZ.BasisZ);
}
catch (Autodesk.Revit.Exceptions
.InvalidOperationException)
{
++nExtrusionAnalysisFailures;
return(nAdded);
}
Face face = extrusionAnalyzer
.GetExtrusionBase();
loops.Add(GetLoop(creapp, face));
++nAdded;
}
return(nAdded);
}
/// <summary>
/// Set the ExtrusionBase from the ExtrusionAnalyzer
/// </summary>
/// <param name="extrusionAnalyzer">Extrusion Analyzer</param>
/// <param name="lcs">the LCS</param>
/// <param name="baseLoopOffset">offset</param>
public FootPrintInfo(ExtrusionAnalyzer extrusionAnalyzer, Transform lcs = null, XYZ baseLoopOffset = null)
{
Face extrusionBase = extrusionAnalyzer.GetExtrusionBase();
IList <GeometryUtil.FaceBoundaryType> boundaryTypes;
if (lcs == null)
{
lcs = Transform.Identity;
}
if (baseLoopOffset == null)
{
baseLoopOffset = XYZ.Zero;
}
IList <CurveLoop> extrusionBoundaryLoops =
GeometryUtil.GetFaceBoundaries(extrusionBase, baseLoopOffset, out boundaryTypes);
if (extrusionBoundaryLoops == null || extrusionBoundaryLoops.Count == 0 || extrusionBoundaryLoops[0] == null)
{
return;
}
// Move base plane to start parameter location.
Plane extrusionBasePlane = null;
try
{
extrusionBasePlane = extrusionBoundaryLoops[0].GetPlane();
}
catch
{
return;
}
// Only the first CurveLoop will be used as the foorprint
ExtrusionBaseLoops = extrusionBoundaryLoops;
ExtrusionBaseLCS = lcs;
}
/// <summary>
/// Generates an IFCExtrusionCreationData from ExtrusionAnalyzer results
/// </summary>
/// <remarks>This will be used to populate certain property sets.</remarks>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="projDir">The projection direction of the extrusion.</param>
/// <param name="analyzer">The extrusion analyzer.</param>
/// <returns>The IFCExtrusionCreationData information.</returns>
public static IFCExtrusionCreationData GetExtrusionCreationDataFromAnalyzer(ExporterIFC exporterIFC, XYZ projDir, ExtrusionAnalyzer analyzer)
{
IFCExtrusionCreationData exportBodyParams = new IFCExtrusionCreationData();
XYZ extrusionDirection = analyzer.ExtrusionDirection;
double zOff = MathUtil.IsAlmostEqual(Math.Abs(projDir[2]), 1.0) ? (1.0 - Math.Abs(extrusionDirection[2])) : Math.Abs(extrusionDirection[2]);
double scaledAngle = UnitUtil.ScaleAngle(MathUtil.SafeAsin(zOff));
exportBodyParams.Slope = scaledAngle;
exportBodyParams.ScaledLength = UnitUtil.ScaleLength(analyzer.EndParameter - analyzer.StartParameter);
exportBodyParams.ExtrusionDirection = extrusionDirection;
// no opening data support yet.
Face extrusionBase = analyzer.GetExtrusionBase();
if (extrusionBase == null)
return null;
IList<GeometryUtil.FaceBoundaryType> boundaryTypes;
IList<CurveLoop> boundaries = GeometryUtil.GetFaceBoundaries(extrusionBase, XYZ.Zero, out boundaryTypes);
if (boundaries.Count == 0)
return null;
Plane plane = null;
double height = 0.0, width = 0.0;
if (ExtrusionExporter.ComputeHeightWidthOfCurveLoop(boundaries[0], plane, out height, out width))
{
exportBodyParams.ScaledHeight = UnitUtil.ScaleLength(height);
exportBodyParams.ScaledWidth = UnitUtil.ScaleLength(width);
}
double area = extrusionBase.Area;
if (area > 0.0)
{
exportBodyParams.ScaledArea = UnitUtil.ScaleArea(area);
}
double innerPerimeter = ExtrusionExporter.ComputeInnerPerimeterOfCurveLoops(boundaries);
double outerPerimeter = ExtrusionExporter.ComputeOuterPerimeterOfCurveLoops(boundaries);
if (innerPerimeter > 0.0)
exportBodyParams.ScaledInnerPerimeter = UnitUtil.ScaleLength(innerPerimeter);
if (outerPerimeter > 0.0)
exportBodyParams.ScaledOuterPerimeter = UnitUtil.ScaleLength(outerPerimeter);
return exportBodyParams;
}
