| public static IsEqual ( double a, double b ) : bool | ||
| a | double | |
| b | double | |
| return | bool | |
/// <summary>
/// Determine the visible elements belonging to the
/// specified categories in the views displayed by
/// the given sheet and return their graphics and
/// instance placements.
/// Ignore all but the first geometry loop retrieved.
/// </summary>
/// <param name="modelCollections">Data container</param>
/// <param name="sheet">The view sheet</param>
/// <param name="categoryFilter">The desired categories</param>
static void GetBimGraphics(
SheetModelCollections modelCollections,
ViewSheet sheet,
ElementFilter categoryFilter)
{
bool list_ignored_elements = false;
Document doc = sheet.Document;
Autodesk.Revit.Creation.Application creapp
= doc.Application.Create;
Options opt = new Options();
// There is no need and no possibility to set
// the detail level when retrieving view geometry.
// An attempt to specify the detail level will
// cause writing the opt.View property to throw
// "DetailLevel is already set. When DetailLevel
// is set view-specific geometry can't be
// extracted."
//
//opt.DetailLevel = ViewDetailLevel.Coarse;
Debug.Print(sheet.Name);
foreach (ViewPlan v in sheet.GetAllPlacedViews()
.Select <ElementId, View>(id =>
doc.GetElement(id) as View)
.OfType <ViewPlan>()
.Where <ViewPlan>(v => IsFloorPlan(v)))
{
Debug.Print(" " + v.Name);
modelCollections.BimelsInViews.Add(
v.Id, new List <ObjData>());
opt.View = v;
JtBoundingBox2dInt bimelBb
= new JtBoundingBox2dInt();
FilteredElementCollector els
= new FilteredElementCollector(doc, v.Id)
.WherePasses(categoryFilter);
foreach (Element e in els)
{
GeometryElement geo = e.get_Geometry(opt);
FamilyInstance f = e as FamilyInstance;
if (null != f)
{
LocationPoint lp = e.Location
as LocationPoint;
// Simply ignore family instances that
// have no location point or no location at
// all, e.g. panel.
// No, we should not ignore them, but
// treat tham as non-transformable parts.
if (null == lp)
{
if (list_ignored_elements)
{
Debug.Print(string.Format(
" ... {0} has no location",
e.Name));
}
f = null;
geo = geo.GetTransformed(
Transform.Identity);
}
else
{
FamilySymbol s = f.Symbol;
if (modelCollections.Symbols.ContainsKey(s.Id))
{
if (list_ignored_elements)
{
Debug.Print(" ... symbol already handled "
+ e.Name + " --> " + s.Name);
}
// Symbol already defined, just add instance
JtPlacement2dInt placement
= new JtPlacement2dInt(f);
// Expand bounding box around all BIM
// elements, ignoring the size of the
// actual geometry, assuming is is small
// in comparison and the insertion point
// lies within it.
bimelBb.ExpandToContain(
placement.Translation);
InstanceData d = new InstanceData();
d.Id = f.Id;
d.Symbol = f.Symbol.Id;
d.Placement = placement;
modelCollections.BimelsInViews[v.Id]
.Add(d);
continue;
}
// Retrieve family instance geometry
// transformed back to symbol definition
// coordinate space by inverting the
// family instance placement transformation
Transform t = Transform.CreateTranslation(
-lp.Point);
Transform r = Transform.CreateRotationAtPoint(
XYZ.BasisZ, -lp.Rotation, lp.Point);
geo = geo.GetTransformed(t * r);
}
}
int nEmptySolids = 0;
int nNonEmptySolids = 0;
int nCurves = 0;
int nOther = 0;
foreach (GeometryObject obj in geo)
{
// This was true before calling GetTransformed.
//Debug.Assert( obj is Solid || obj is GeometryInstance, "expected only solids and instances" );
// This was true before calling GetTransformed.
//Debug.Assert( ( obj is GeometryInstance ) == ( e is FamilyInstance ), "expected all family instances to have geometry instance" );
Debug.Assert(obj is Solid || obj is Line || obj is Arc, "expected only solids, lines and arcs after calling GetTransformed on instances");
// Todo: handle arcs, e.g. tessellate
Debug.Assert(Visibility.Visible == obj.Visibility, "expected only visible geometry objects");
Debug.Assert(obj.IsElementGeometry, "expected only element geometry");
//bool isElementGeometry = obj.IsElementGeometry;
Solid solid = obj as Solid;
if (null != solid)
{
if (0 < solid.Edges.Size)
{
++nNonEmptySolids;
}
else
{
++nEmptySolids;
}
}
else if (obj is Curve)
{
++nCurves;
}
else
{
++nOther;
}
}
Debug.Print(" {0}: {1} non-emtpy solids, "
+ "{2} empty, {3} curves, {4} other",
e.Name, nNonEmptySolids, nEmptySolids,
nCurves, nOther);
JtLoops loops = null;
if (1 == nNonEmptySolids &&
0 == nEmptySolids + nCurves + nOther)
{
int nFailures = 0;
loops = CmdUploadRooms
.GetPlanViewBoundaryLoopsGeo(
creapp, geo, ref nFailures);
}
else
{
double z = double.MinValue;
bool first = true;
foreach (GeometryObject obj in geo)
{
// Do we need the graphics style?
// It might give us horrible things like
// colours etc.
ElementId id = obj.GraphicsStyleId;
//Debug.Print( " " + obj.GetType().Name );
Solid solid = obj as Solid;
if (null == solid)
{
#region Debug code to ensure horizontal co-planar curves
#if DEBUG
Debug.Assert(obj is Line || obj is Arc, "expected only lines and arcs here");
Curve c = obj as Curve;
if (first)
{
z = c.GetEndPoint(0).Z;
Debug.Assert(Util.IsEqual(z, c.GetEndPoint(1).Z),
"expected a plan view with all Z values equal");
first = false;
}
else
{
Debug.Assert(Util.IsEqual(z, c.GetEndPoint(0).Z),
"expected a plan view with all Z values equal");
Debug.Assert(Util.IsEqual(z, c.GetEndPoint(1).Z),
"expected a plan view with all Z values equal");
}
Debug.Print(" {0} {1}",
obj.GetType().Name,
Util.CurveEndpointString(c));
#endif // DEBUG
#endregion // Debug code to ensure horizontal co-planar curves
}
else if (1 == solid.Faces.Size)
{
Debug.Print(
" solid with 1 face");
foreach (Face face in solid.Faces)
{
#region Debug code to print out face edges
#if DEBUG
foreach (EdgeArray loop in
face.EdgeLoops)
{
foreach (Edge edge in loop)
{
// This returns the curves already
// correctly oriented:
Curve c = edge
.AsCurveFollowingFace(face);
Debug.Print(" {0}: {1} {2}",
edge.GetType().Name,
c.GetType().Name,
Util.CurveEndpointString(c));
}
}
#endif // DEBUG
#endregion // Debug code to print out face edges
if (null == loops)
{
loops = new JtLoops(1);
}
loops.Add(CmdUploadRooms.GetLoop(
creapp, face));
}
}
else
{
#region Debug code for exceptional cases
#if DEBUG_2
Debug.Assert(1 >= solid.Faces.Size, "expected at most one visible face in plan view for my simple solids");
int n = solid.Edges.Size;
if (0 < n)
{
Debug.Print(
" solid with {0} edges", n);
Face[] face2 = new Face[] { null, null };
Face face = null;
foreach (Edge edge in solid.Edges)
{
if (null == face2[0])
{
face2[0] = edge.GetFace(0);
face2[1] = edge.GetFace(1);
}
else if (null == face)
{
if (face2.Contains <Face>(edge.GetFace(0)))
{
face = edge.GetFace(0);
}
else if (face2.Contains <Face>(edge.GetFace(1)))
{
face = edge.GetFace(1);
}
else
{
Debug.Assert(false,
"expected all edges to belong to one face");
}
}
else
{
Debug.Assert(face == edge.GetFace(0) ||
face == edge.GetFace(1),
"expected all edges to belong to one face");
}
Curve c = edge.AsCurve();
// This returns the curves already
// correctly oriented:
//Curve curve = e.AsCurveFollowingFace(
// face );
Debug.Print(" {0}: {1} {2}",
edge.GetType().Name,
c.GetType().Name,
Util.CurveEndpointString(c));
}
}
#endif // DEBUG
#endregion // Debug code for exceptional cases
}
}
}
// Save the part or instance and
// the geometry retrieved for it.
// This is where we drop all geometry but
// the first loop.
if (null != loops)
{
GeomData gd = new GeomData();
gd.Loop = loops[0];
if (null == f)
{
// Add part with absolute geometry
gd.Id = e.Id;
modelCollections.BimelsInViews[v.Id].Add(
gd);
// Expand bounding box around all BIM
// elements.
bimelBb.ExpandToContain(
gd.Loop.BoundingBox);
}
else
{
// Define symbol and add instance
JtPlacement2dInt placement
= new JtPlacement2dInt(f);
InstanceData id = new InstanceData();
id.Id = f.Id;
id.Symbol = f.Symbol.Id;
id.Placement = placement;
modelCollections.BimelsInViews[v.Id].Add(
id);
gd.Id = f.Symbol.Id;
modelCollections.Symbols.Add(
f.Symbol.Id, gd);
// Expand bounding box around all BIM
// elements.
JtBoundingBox2dInt bb = gd.Loop.BoundingBox;
Point2dInt vtrans = placement.Translation;
bimelBb.ExpandToContain(bb.Min + vtrans);
bimelBb.ExpandToContain(bb.Max + vtrans);
}
}
}
// Set up BIM bounding box for this view
modelCollections.ViewsInSheet[sheet.Id].Find(
v2 => v2.Id.IntegerValue.Equals(
v.Id.IntegerValue)).BimBoundingBox
= bimelBb;
}
}