//--------------------------------------------------------------------------------------------------
void _OnActionFinished(ToolAction toolAction)
{
bool finished = false;
var selectAction = toolAction as SelectSubshapeAction;
Debug.Assert(selectAction != null);
if (selectAction.SelectedSubshapeType == SubshapeTypes.Face)
{
var face = TopoDS.Face(selectAction.SelectedSubshape);
var brepAdaptor = new BRepAdaptor_Surface(face, true);
if (brepAdaptor.GetGeomType() != GeomAbs_SurfaceType.GeomAbs_Plane)
{
StatusText = "Selected face is not a plane type surface.";
}
else
{
double centerU = brepAdaptor.FirstUParameter() + (brepAdaptor.LastUParameter() - brepAdaptor.FirstUParameter()) / 2;
double centerV = brepAdaptor.FirstVParameter() + (brepAdaptor.LastVParameter() - brepAdaptor.FirstVParameter()) / 2;
var centerPnt = brepAdaptor.Value(centerU, centerV);
WorkspaceController.Workspace.WorkingPlane = new Pln(centerPnt, brepAdaptor.Plane().Axis.Direction);
finished = true;
}
}
else if (selectAction.SelectedSubshapeType == SubshapeTypes.Edge)
{
var edge = TopoDS.Edge(selectAction.SelectedSubshape);
double firstParam = 0, lastParam = 0;
var curve = BRep_Tool.Curve(edge, ref firstParam, ref lastParam);
if (curve != null)
{
var midpoint = curve.Value(firstParam + (lastParam - firstParam) / 2);
WorkspaceController.Workspace.WorkingPlane = new Pln(midpoint, WorkspaceController.Workspace.WorkingPlane.Axis.Direction);
finished = true;
}
}
else if (selectAction.SelectedSubshapeType == SubshapeTypes.Vertex)
{
var vertex = TopoDS.Vertex(selectAction.SelectedSubshape);
WorkspaceController.Workspace.WorkingPlane = new Pln(BRep_Tool.Pnt(vertex), WorkspaceController.Workspace.WorkingPlane.Axis.Direction);
finished = true;
}
if (finished)
{
selectAction.Stop();
Stop();
}
else
{
selectAction.Reset();
}
WorkspaceController.Invalidate();
}
public static TopoDSShape ExtractSubShape(
TopoDSShape originalShape,
int facePosition,
TopAbsShapeEnum shapeType)
{
if (originalShape == null)
{
return(null);
}
// Find the face
var baseEx = new TopExpExplorer();
baseEx.Init(originalShape, shapeType, TopAbsShapeEnum.TopAbs_SHAPE);
while (baseEx.More && (facePosition != 1))
{
baseEx.Next();
facePosition--;
}
//if (!baseEx.More())
// return null;
TopoDSShape shape = null;
switch (shapeType)
{
case TopAbsShapeEnum.TopAbs_VERTEX:
shape = TopoDS.Vertex(baseEx.Current);
break;
case TopAbsShapeEnum.TopAbs_EDGE:
shape = TopoDS.Edge(baseEx.Current);
break;
case TopAbsShapeEnum.TopAbs_WIRE:
shape = TopoDS.Wire(baseEx.Current);
break;
case TopAbsShapeEnum.TopAbs_FACE:
shape = TopoDS.Face(baseEx.Current);
break;
case TopAbsShapeEnum.TopAbs_SOLID:
case TopAbsShapeEnum.TopAbs_COMPOUND:
return(originalShape);
}
return(shape);
}
//--------------------------------------------------------------------------------------------------
#endregion
#region Property List
void _InitProperties()
{
if (_Properties != null)
{
return;
}
_Properties = new List <BRepTopologyTreeProperty>();
try
{
_AddDefaultProperties();
switch (BrepShape.ShapeType())
{
case TopAbs_ShapeEnum.TopAbs_SHELL:
_AddShellProperties(BrepShape as TopoDS_Shell ?? TopoDS.Shell(BrepShape));
break;
case TopAbs_ShapeEnum.TopAbs_FACE:
_AddFaceProperties(BrepShape as TopoDS_Face ?? TopoDS.Face(BrepShape));
break;
case TopAbs_ShapeEnum.TopAbs_WIRE:
_AddWireProperties(BrepShape as TopoDS_Wire ?? TopoDS.Wire(BrepShape));
break;
case TopAbs_ShapeEnum.TopAbs_EDGE:
_AddEdgeProperties(BrepShape as TopoDS_Edge ?? TopoDS.Edge(BrepShape));
break;
case TopAbs_ShapeEnum.TopAbs_VERTEX:
_AddVertexProperties(BrepShape as TopoDS_Vertex ?? TopoDS.Vertex(BrepShape));
break;
}
}
catch (Exception e)
{
Messages.Exception($"Error getting properties for B-Rep shape {Name}", e);
}
}
//--------------------------------------------------------------------------------------------------
public static List <TopoDS_Vertex> Vertices(this TopoDS_Shape shape, bool distinct = true)
{
var faces = new List <TopoDS_Vertex>();
var exp = new TopExp_Explorer(shape, TopAbs_ShapeEnum.TopAbs_VERTEX, TopAbs_ShapeEnum.TopAbs_SHAPE);
while (exp.More())
{
var vertex = TopoDS.Vertex(exp.Current());
exp.Next();
if (distinct)
{
if (faces.Any(e => e.IsSame(vertex)))
{
continue;
}
}
faces.Add(vertex);
}
return(faces);
}
/// <summary>
/// Apply fillet on a list of wires. The common endpoints of wires are considered the fillet vertexes.
/// </summary>
private static TopoDSWire ApplyFilletOnWires(IEnumerable <SceneSelectedEntity> filletNodes, double radius,
int filletChamferType)
{
// This method processes only fillet2D and chamfer2D operations
if ((filletChamferType != (int)FilletChamferTypes.SimpleFillet2D) &&
(filletChamferType != (int)FilletChamferTypes.SimpleChamfer2D))
{
return(null);
}
try
{
// Make a face fom the wires
var wires = new List <SceneSelectedEntity>();
foreach (var node in filletNodes)
{
wires.Add(node);
}
var face = MakeFaceFunction.ComposeWires(wires, true);
if ((face == null) || (face.IsNull))
{
return(null);
}
var fillet = new BRepFilletAPIMakeFillet2d();
// Initialize a fillet with the face made from the 2 wires
fillet.Init(face);
// Fillet the common vertexes
Node previousNode = null;
foreach (var node in filletNodes)
{
if (previousNode != null)
{
var wire1 = previousNode.Get <NamedShapeInterpreter>().Shape;
var wire2 = node.Node.Get <NamedShapeInterpreter>().Shape;
var listOfCommonVertex = GeomUtils.CommonVertexes(wire1, wire2);
if (listOfCommonVertex.Count >= 1)
{
foreach (var vertex in listOfCommonVertex)
{
if (filletChamferType == (int)FilletChamferTypes.SimpleFillet2D)
{
// If the operation is a fillet
fillet.AddFillet(vertex, radius);
}
else
{
// Map all edges to faces
var map = new TopToolsIndexedDataMapOfShapeListOfShape(1);
TopExp.MapShapesAndAncestors(wire1, TopAbsShapeEnum.TopAbs_VERTEX,
TopAbsShapeEnum.TopAbs_EDGE, map);
// Locate an ancestor face
for (var i = 1; i <= map.Extent; i++)
{
var localVertex = TopoDS.Vertex(map.FindKey(i));
if (!vertex.IsSame(localVertex))
{
continue;
}
// We found an ancestor edge
var edge = TopoDS.Edge(map.FindFromIndex(i).First);
// Add the vertex and edge on the chamfer algorithm
//fillet.AddChamfer(TopoDS.Edge(edge), TopoDS.Edge(edge2), radius, radius);
fillet.AddChamfer(TopoDS.Edge(edge), vertex, radius,
GeomUtils.DegreesToRadians(45));
}
}
}
}
else
{
return(null);
}
}
previousNode = node.Node;
}
// Test if the operation succeeded
if (fillet.Status != ChFi2dConstructionError.ChFi2d_IsDone)
{
return(null);
}
var shape = fillet.Shape;
if ((shape == null) || (shape.IsNull))
{
return(null);
}
var aMap = new TopToolsIndexedMapOfShape(1);
TopExp.MapShapes(fillet.Shape, TopAbsShapeEnum.TopAbs_WIRE, aMap);
if (aMap.Extent != 1)
{
return(null);
}
var newWire = new BRepBuilderAPIMakeWire();
var ex = new BRepToolsWireExplorer(TopoDS.Wire(aMap.FindKey(1)));
for (; ex.More; ex.Next())
{
newWire.Add(ex.Current);
}
return(newWire.Wire);
}
catch (Exception ex)
{
Log.Error("Apply Fillet2D error: " + ex.Message);
}
return(null);
}
//--------------------------------------------------------------------------------------------------
public SnapInfo Snap(MouseEventData mouseEvent)
{
if (!InteractiveContext.Current.EditorState.SnappingEnabled)
{
return(null);
}
SnapInfo info = null;
if (mouseEvent.DetectedShapes.Count == 1)
{
var detectedShape = mouseEvent.DetectedShapes[0];
if (SupportedSnapModes.HasFlag(SnapMode.Vertex) &&
InteractiveContext.Current.EditorState.SnapToVertexSelected &&
(detectedShape.ShapeType() == TopAbs_ShapeEnum.TopAbs_VERTEX))
{
// On Vertex
var vertex = TopoDS.Vertex(detectedShape);
info = new SnapInfo()
{
Point = BRep_Tool.Pnt(vertex),
SnapMode = SnapMode.Vertex
};
}
else if (SupportedSnapModes.HasFlag(SnapMode.Edge) &&
InteractiveContext.Current.EditorState.SnapToEdgeSelected &&
(detectedShape.ShapeType() == TopAbs_ShapeEnum.TopAbs_EDGE))
{
// On Edge
var edge = TopoDS.Edge(detectedShape);
double umin = 0, umax = 0;
var curve = BRep_Tool.Curve(edge, ref umin, ref umax);
if (curve != null)
{
var extrema = new GeomAPI_ExtremaCurveCurve(curve,
new Geom_Line(_WorkspaceController.ActiveViewport.ViewAxis(Convert.ToInt32(mouseEvent.ScreenPoint.X), Convert.ToInt32(mouseEvent.ScreenPoint.Y))));
if (extrema.NbExtrema() >= 1)
{
Pnt p1 = new Pnt();
Pnt p2 = new Pnt();
if (extrema.TotalNearestPoints(ref p1, ref p2))
{
info = new SnapInfo()
{
Point = p1,
SnapMode = SnapMode.Edge
};
}
}
}
}
}
else if (mouseEvent.DetectedAisInteractives.Count == 1)
{
if (SupportedSnapModes.HasFlag(SnapMode.Vertex) &&
InteractiveContext.Current.EditorState.SnapToVertexSelected &&
(mouseEvent.DetectedAisInteractives[0] is AIS_Point aisPoint))
{
// On Vertex
info = new SnapInfo()
{
Point = aisPoint.Component().Pnt(),
SnapMode = SnapMode.Vertex
};
}
}
else if (SupportedSnapModes.HasFlag(SnapMode.Grid) &&
InteractiveContext.Current.EditorState.SnapToGridSelected &&
_WorkspaceController.Workspace.V3dViewer.Grid().IsActive())
{
// On Grid
info = new SnapInfo()
{
Point = _WorkspaceController.ActiveViewport.ProjectToGrid(Convert.ToInt32(mouseEvent.ScreenPoint.X), Convert.ToInt32(mouseEvent.ScreenPoint.Y)),
SnapMode = SnapMode.Grid
};
}
if (info != null)
{
_WorkspaceController.CursorPosition = info.Point;
}
return(info);
}
//--------------------------------------------------------------------------------------------------
public static TopoDS_Vertex ToVertex(this TopoDS_Shape shape)
{
return(shape == null ? null : TopoDS.Vertex(shape));
}
public static gpPnt ConvertShapeToPoint(TopoDSShape shape)
{
return(shape == null ? null : BRepTool.Pnt(TopoDS.Vertex(shape)));
}