private static void AddFaceFilletVertex(TopoDSShape face, int filletChamferType, double radius,
SceneSelectedEntity firstEntity, SceneSelectedEntity secondEntity,
BRepFilletAPIMakeFillet2d fillet)
{
var firstWire = GeomUtils.ExtractShapeType(face, firstEntity.ShapeType, firstEntity.ShapeCount);
var secondWire = GeomUtils.ExtractShapeType(face, secondEntity.ShapeType, secondEntity.ShapeCount);
var listOfCommonVertex = GeomUtils.CommonVertexes(firstWire, secondWire);
if (listOfCommonVertex.Count >= 1)
{
// If operation type is fillet
if (filletChamferType == (int)FilletChamferTypes.SimpleFillet2D)
{
foreach (var vertex in listOfCommonVertex)
{
fillet.AddFillet(vertex, radius);
}
}
else
{
// If operation type is chamfer
fillet.AddChamfer(TopoDS.Edge(firstWire), listOfCommonVertex[0], radius,
GeomUtils.DegreesToRadians(45));
}
}
else
{
return;
}
return;
}
/// <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);
}
/// <summary>
/// Applies fillet on the edges of a Face generated from a wire.
/// </summary>
private static TopoDSFace ApplyFilletOnFace(IList <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);
}
// There should be at least two edges to apply fillet on them
if (filletNodes.Count < 2)
{
return(null);
}
// Check that the list contains only edges
foreach (var node in filletNodes)
{
if (node.ShapeType != TopAbsShapeEnum.TopAbs_EDGE)
{
return(null);
}
}
try
{
var fillet = new BRepFilletAPIMakeFillet2d();
// Initialize a fillet with the parent face of the edges
var face = TopoDS.Face(filletNodes[0].Node.Get <TopoDsShapeInterpreter>().Shape);
fillet.Init(face);
// Fillet the common vertexes
SceneSelectedEntity previousNode = null;
foreach (var node in filletNodes)
{
if (previousNode != null)
{
AddFaceFilletVertex(face, filletChamferType, radius, previousNode, node, fillet);
}
previousNode = node;
}
// Add also the last and first edges if they have a common node in the case there are more than 2 edges
if ((previousNode != null) && (filletNodes.Count > 2))
{
AddFaceFilletVertex(face, filletChamferType, radius, previousNode, filletNodes[0], fillet);
}
// Test if the operation succeeded
if (fillet.Status != ChFi2dConstructionError.ChFi2d_IsDone)
{
return(null);
}
var shape = fillet.Shape;
if ((shape == null) || (shape.IsNull))
{
return(null);
}
return(shape.ShapeType == TopAbsShapeEnum.TopAbs_FACE ? TopoDS.Face(shape) : null);
}
catch (Exception ex)
{
Log.Info("Apply Fillet2D error: " + ex.Message);
}
return(null);
}
