public Tab(T face, K edge, PlanarUnfolder.PlanarUnfolding <K, T> unfoldObject, double tabOffset = .3)
{
ID = face.ID;
UnfoldableFace = face;
TabSurf = generateTabGeo(edge, tabOffset);
AlignedTabSurf = PlanarUnfolder.DirectlyMapGeometryToUnfoldingByID(unfoldObject, TabSurf, ID);
}
public static Dictionary <int, List <Tab <K, T> > > GenerateTabSurfacesFromUnfold <K, T>(PlanarUnfolder.PlanarUnfolding <K, T> unfoldingObject, double relativeWidth = .3)
where K : IUnfoldableEdge
where T : IUnfoldablePlanarFace <K>, new()
{
//TODO cleanup old geometry
var tabedges = new List <K>();
// gather the difference set of edges between all shared edegs and the edges we actually fold around
// the difference are the edges that we need to add tabs to
var gedges = GraphUtilities.GetAllGraphEdges <K, T>(unfoldingObject.OriginalGraph).Select(x => x.GeometryEdge).ToList();
var tedges = GraphUtilities.GetAllTreeEdges <K, T>(unfoldingObject.OriginalGraph).Select(x => x.GeometryEdge).ToList();
var nonFoldEdegs = gedges.Except(tedges, new SpatialEqualityComparer <K>());
var tabDict = new Dictionary <int, List <Tab <K, T> > >();
foreach (var edge in nonFoldEdegs)
{
if (tabedges.Contains(edge) == false)
{
tabedges.Add(edge);
// find the first vertex that contains this edge in its graph edge list
var firstmatchingvertingraph = unfoldingObject.OriginalGraph.Find(x => x.GraphEdges.Select(y => y.GeometryEdge).ToList().Contains(edge));
//make a new tab
var newtab = new Tab <K, T>(firstmatchingvertingraph.Face, edge, unfoldingObject, relativeWidth);
//store the tab
//if the same surface has another tab on a different edge add it to the dict
if (tabDict.ContainsKey(firstmatchingvertingraph.Face.ID))
{
tabDict[firstmatchingvertingraph.Face.ID].Add(newtab);
continue;
}
tabDict.Add(firstmatchingvertingraph.Face.ID, new List <Tab <K, T> >()
{
newtab
});
}
}
return(tabDict);
}
public static Dictionary <string, object> PackUnfoldSurfaces <K, T>(PlanarUnfolder.PlanarUnfolding <K, T> unfold, double width = 20, double height = 20, double gap = .3)
where T : IUnfoldablePlanarFace <K>, new()
where K : IUnfoldableEdge
{
//first step is to align all the facelikes in the unfold
// to the plane and get new transforms and facelikes
var alignedgeo = MoveSurfacesInUnfoldToPlane <K, T>(unfold);
var translatedFaces = alignedgeo.Item1;
var translationTransforms = alignedgeo.Item2;
List <PlanarUnfolder.FaceTransformMap> packingtransforms = new List <PlanarUnfolder.FaceTransformMap>();
var facelikes = translatedFaces;
var bbs = facelikes.Select(x => BoundingBox.ByGeometry(x.SurfaceEntities)).ToList();
var newcenters = DynamoPack.Packing.ByCoordinateSystems(bbs, width, height, gap);
var centers = bbs.Select(x => x.MinPoint.Add((x.MaxPoint.Subtract(x.MinPoint.AsVector()).AsVector().Scale(.5)))).ToList();
if (newcenters.Count != centers.Count)
{
throw new Exception("The bounding box for this packing operation is too small, try a larger x or y value or smaller gap size");
}
var packedfinalsurfaces = new List <List <Surface> >();
var packedfinalfacelikes = new List <T>();
foreach (var surftotrans in facelikes)
{
var index = facelikes.IndexOf(surftotrans);
var transvec = Vector.ByTwoPoints(centers[index], newcenters[index]);
var newsurface = surftotrans.SurfaceEntities.Select(x => x.Translate(transvec)).Cast <Surface>().ToList();
var ids = translatedFaces[index].IDS;
// keep track of where all the newsurfaces end up in the packing and what labels where moved //TODO just try keeping the transvec instead.....
packingtransforms.Add(new PlanarUnfolder.FaceTransformMap(surftotrans.SurfaceEntities.First().ContextCoordinateSystem, newsurface.First().ContextCoordinateSystem, ids));
packedfinalsurfaces.Add(newsurface);
// create a copy of the old facelike, but update the surface
var newfacelike = new T();
newfacelike.OriginalEntity = surftotrans.OriginalEntity;
newfacelike.SurfaceEntities = newsurface as List <Surface>;
newfacelike.ID = surftotrans.ID;
newfacelike.IDS = surftotrans.IDS;
newfacelike.EdgeLikeEntities = surftotrans.EdgeLikeEntities;
packedfinalfacelikes.Add(newfacelike);
}
foreach (IDisposable item in translatedFaces.SelectMany(x => x.SurfaceEntities).ToList())
{
item.Dispose();
}
//first concat the old unfold transforms with the translation ones,
// then add the final packing transforms
var aggregatedtransforms = unfold.Maps.Concat(translationTransforms).ToList();
aggregatedtransforms.AddRange(packingtransforms);
// finally create a new unfold object and pass it out
var packedUnfolding = new PlanarUnfolder.PlanarUnfolding <K, T>(unfold.StartingUnfoldableFaces, packedfinalsurfaces, aggregatedtransforms, packedfinalfacelikes, unfold.OriginalGraph);
return(new Dictionary <string, object>
{
{ "packed surfaces", (packedfinalsurfaces) },
{ "unfoldObject", (packedUnfolding) }
});
}
//align all surfaces down, generate new transforms
//
private static Tuple <List <T>, List <PlanarUnfolder.FaceTransformMap> > MoveSurfacesInUnfoldToPlane <K, T>(PlanarUnfolder.PlanarUnfolding <K, T> unfold)
where K : IUnfoldableEdge
where T : IUnfoldablePlanarFace <K>, new()
{
var alignDownTransforms = new List <PlanarUnfolder.FaceTransformMap>();
var translatedFaces = new List <T>();
var faces = unfold.UnfoldedFaces;
foreach (var facelike in faces)
{
var surfaceToAlignDown = facelike.SurfaceEntities;
// get the coordinate system defined by the face normal
var somePointOnSurface = facelike.SurfaceEntities.First().PointAtParameter(.5, .5);
var norm = facelike.SurfaceEntities.First().NormalAtParameter(.5, .5);
var facePlane = Plane.ByOriginNormal(somePointOnSurface, norm);
var startCoordSystem = CoordinateSystem.ByPlane(facePlane);
//TODO need to cleanup planes, coord systems...
// transform surface to horizontal plane at x,y,0 of org surface
var tempSurfaces = surfaceToAlignDown.Select(x => x.Transform(startCoordSystem,
CoordinateSystem.ByPlane(Plane.ByOriginXAxisYAxis(
Point.ByCoordinates(somePointOnSurface.X, somePointOnSurface.Y, 0),
Vector.XAxis(), Vector.YAxis()))) as Surface).ToList();
var flatcoordsystem = CoordinateSystem.ByPlane(Plane.ByOriginXAxisYAxis(
Point.ByCoordinates(somePointOnSurface.X, somePointOnSurface.Y, 0),
Vector.XAxis(), Vector.YAxis()));
// save transformation for each set, this should have all the ids present
//TODO is this incorrect? should we be saving tempSurfaces?
alignDownTransforms.Add(new PlanarUnfolder.FaceTransformMap(startCoordSystem, flatcoordsystem, facelike.IDS));
//alignDownTransforms.Add(new PlanarUnfolder.FaceTransformMap(
//startCoordSystem, facelike.IDS));
//create a new facelike to hold the new surfaces that are aligned to the plane
//the ids are the same though which lets us label these and apply the correct transformations
var newfacelike = new T();
newfacelike.OriginalEntity = facelike.OriginalEntity;
newfacelike.SurfaceEntities = tempSurfaces;
newfacelike.ID = facelike.ID;
newfacelike.IDS = facelike.IDS;
newfacelike.EdgeLikeEntities = facelike.EdgeLikeEntities;
translatedFaces.Add(newfacelike);
}
return(Tuple.Create(translatedFaces, alignDownTransforms));
}