private RoomData FindVisibility(RoomData rd, ProgressBar progressBar)
{
RoomData updatedData = new RoomData(rd);
try
{
LogicalOrFilter orFilter = new LogicalOrFilter(categoryFilters);
ReferenceIntersector intersector = null;
intersector = new ReferenceIntersector(orFilter, FindReferenceTarget.Face, m_view);
intersector.FindReferencesInRevitLinks = true;
Face face = rd.RoomFace;
BoundingBoxUV bb = face.GetBoundingBox();
IList <UV> uvPoints = new List <UV>();
IList <ValueAtPoint> valList = new List <ValueAtPoint>();
List <PointData> pointDataList = new List <PointData>();
double interval = analysisSettings.Interval;
List <double> uList = new List <double>();
List <double> vList = new List <double>();
GetUVArray(bb, interval, out uList, out vList);
progressBar.Value = 0;
progressBar.Minimum = 0;
progressBar.Maximum = uList.Count * vList.Count;
UpdateProgressDelegate updateProgressDelegate = new UpdateProgressDelegate(progressBar.SetValue);
List <XYZ> exteriorPoints = new List <XYZ>();
List <XYZ> interiorPoints = new List <XYZ>();
bool sorted = SortViewPoints(rd.BoundarySegments, out exteriorPoints, out interiorPoints);
int visibleCount = 0;
double progressValue = 0;
foreach (double u in uList) //start from in the middle of grid
{
foreach (double v in vList)
{
if (AbortFlag.GetAbortFlag())
{
return(updatedData);
}
Dispatcher.CurrentDispatcher.Invoke(updateProgressDelegate, System.Windows.Threading.DispatcherPriority.Background, new object[] { ProgressBar.ValueProperty, progressValue });
UV uvPoint = new UV(u, v);
if (face.IsInside(uvPoint))
{
XYZ evalPoint = face.Evaluate(uvPoint);
XYZ xyzPoint = new XYZ(evalPoint.X, evalPoint.Y, evalPoint.Z + offsetHeight); //4.2 inches above from the floor
double pointValue = 0;
List <XYZ> viewPoints = new List <XYZ>();
if (exteriorPoints.Count > 0)
{
exteriorPoints = exteriorPoints.OrderBy(o => o.DistanceTo(xyzPoint)).ToList();
viewPoints.AddRange(exteriorPoints);
}
if (interiorPoints.Count > 0)
{
interiorPoints = interiorPoints.OrderBy(o => o.DistanceTo(xyzPoint)).ToList();
viewPoints.AddRange(interiorPoints);
}
if (viewPoints.Count > 0)
{
bool visible = CheckVisibilityByMaterial(intersector, xyzPoint, viewPoints);
if (visible)
{
pointValue = 1; visibleCount++;
}
else
{
pointValue = 0;
}
}
PointData pData = new PointData(uvPoint, xyzPoint, pointValue);
pointDataList.Add(pData);
uvPoints.Add(pData.UVPoint);
valList.Add(pData.ValueAtPoint);
}
progressValue++;
}
}
rd.PointDataList = pointDataList;
double ratio = (double)visibleCount / (double)uvPoints.Count;
rd.VisiblityRatio = ratio;
rd.AreaWithViews = rd.RoomArea * ratio;
rd.SetResultParameterValue(LEEDParameters.LEED_AreaWithViews.ToString(), rd.AreaWithViews);
//visualize
Transform transform = Transform.CreateTranslation(new XYZ(0, 0, offsetHeight));
int index = m_sfm.AddSpatialFieldPrimitive(face, transform);
FieldDomainPointsByUV domainPoints = new FieldDomainPointsByUV(uvPoints);
FieldValues values = new FieldValues(valList);
m_sfm.UpdateSpatialFieldPrimitive(index, domainPoints, values, resultIndex);
}
catch (Exception ex)
{
MessageBox.Show("Failed to find visibility.\n" + ex.Message, "Find Visibility", MessageBoxButton.OK, MessageBoxImage.Warning);
}
return(updatedData);
}
