public override bool Execute()
{
var firstShape = Dependency[0].ReferedShape;
var secondShape = Dependency[1].ReferedShape;
if (firstShape.IsSame(secondShape))
{
return(false);
}
NodeUtils.Hide(Dependency[0].Reference);
NodeUtils.Hide(Dependency[1].Reference);
switch (Dependency[2].Integer)
{
case (int)BooleanOperations.Substract:
var cut = new BRepAlgoAPICut(firstShape, secondShape);
if (!cut.IsDone)
{
return(false);
}
if ((cut.HasGenerated == false) && (cut.HasModified == false))
{
return(false);
}
Shape = cut.Shape;
break;
case (int)BooleanOperations.Add:
var fuse = new BRepAlgoAPIFuse(firstShape, secondShape);
if (!fuse.IsDone)
{
return(false);
}
if ((fuse.HasGenerated == false) && (fuse.HasModified == false))
{
return(false);
}
Shape = fuse.Shape;
break;
case (int)BooleanOperations.Intersect:
var common = new BRepAlgoAPICommon(firstShape, secondShape);
if (!common.IsDone)
{
return(false);
}
if ((common.HasGenerated == false) && (common.HasModified == false))
{
return(false);
}
Shape = common.Shape;
break;
}
return(true);
}
/// <summary>
/// Cuts through all childs of the node with the TopoDS_Shape passed as parameter.
/// It returns a compund made from the affected shapes
/// </summary>
/// <param name = "nodes"></param>
/// <param name = "cutPrismShape"></param>
private static TopoDSShape CutThroughAll(IEnumerable <SceneSelectedEntity> nodes, TopoDSShape cutPrismShape)
{
var compoundShape = new TopoDSCompound();
var shapeBuilder = new BRepBuilder();
shapeBuilder.MakeCompound(compoundShape);
var resShape = (TopoDSShape)compoundShape;
foreach (var cutShape in nodes)
{
var childNode = cutShape.Node;
// Try to Cut through the object
var topoShape = childNode.Get <NamedShapeInterpreter>().Shape;
if (topoShape == null)
{
continue;
}
var cut = new BRepAlgoAPICut(topoShape, cutPrismShape);
// Check if the shape was altered by the Cut
if ((cut.HasGenerated == false) && (cut.HasModified == false))
{
continue;
}
TopoDSShape shapeCut = null;
try
{
shapeCut = cut.Shape;
}
catch (Exception)
{
Log.Info("Exception on create cut shape");
}
if ((shapeCut != null) && (!shapeCut.IsNull))
{
// Show the new shape as a new Node
shapeBuilder.Add(resShape, shapeCut);
}
}
return(resShape);
}
/// <summary>
/// Cuts through all childs of the node with the TopoDS_Shape passed as parameter.
/// It returns a compund made from the affected shapes
/// </summary>
/// <param name = "nodes"></param>
/// <param name = "cutPrismShape"></param>
private static TopoDSShape CutThroughShape(TopoDSShape shapeToCut, TopoDSShape cutPrismShape)
{
var cut = new BRepAlgoAPICut(shapeToCut, cutPrismShape);
// Check if the shape was altered by the Cut
//if ((cut.HasGenerated == false) && (cut.HasModified == false))
// return null;
if (cut.Shape == null || GeomUtils.GetSolidVolume(cut.Shape) < Precision.Confusion)
{
return(null);
}
TopoDSShape shapeCut = null;
try
{
shapeCut = cut.Shape;
}
catch (Exception)
{
Log.Info("Exception on create cut shape");
}
return(shapeCut);
}
/// <summary>
/// Cuts through all childs of the node with the TopoDS_Shape passed as parameter.
/// It returns a compund made from the affected shapes
/// </summary>
/// <param name = "root"></param>
/// <param name = "cutPrismShape"></param>
/// <param name = "affectedNodes"></param>
/// <param name = "shapeList"></param>
private static TopoDSShape CutThroughAll(Node root, TopoDSShape cutPrismShape,
ICollection <SceneSelectedEntity> affectedNodes,
IEnumerable <int> shapeList)
{
var compoundShape = new TopoDSCompound();
var shapeBuilder = new BRepBuilder();
shapeBuilder.MakeCompound(compoundShape);
var resShape = (TopoDSShape)compoundShape;
foreach (var childNodeIndex in shapeList)
{
var childNode = new NodeBuilder(root[childNodeIndex]);
var topoShape = childNode.Shape;
if (topoShape == null)
{
continue;
}
BRepAlgoAPICut cut;
var filler = new BOPToolsDSFiller();
try
{
filler.SetShapes(topoShape, cutPrismShape);
if (!filler.IsDone)
{
continue;
}
filler.Perform();
cut = new BRepAlgoAPICut(topoShape, cutPrismShape, filler, true);
if (!cut.IsDone)
{
continue;
}
// Check if the shape was altered by the Cut
//if ((cut.HasGenerated == false) && (cut.HasModified == false))
// continue;
}
catch (Exception)
{
continue;
}
TopoDSShape shapeCut = null;
try
{
shapeCut = cut.Shape;
}
catch (Exception)
{
Log.Info("Exception on create cut shape");
}
if ((shapeCut == null) || (shapeCut.IsNull))
{
continue;
}
// If Cut succeeded hide the original shape
NodeUtils.Hide(childNode.Node);
// Show the new shape as a new Node
shapeBuilder.Add(resShape, shapeCut);
// Add the affceted node into the affectedNodes list
affectedNodes.Add(new SceneSelectedEntity(childNode.Node));
}
return(resShape);
}
public static List <TopoDSShape> BuildAutoFaces(Node sketchNode, Document Document)
{
var results = new List <Node>();
var root = Document.Root;
var circleNodes = new List <int>();
var nodesOnSketch = new List <Node>();
// get all 2D wire-based shapes on the sketch
foreach (var node in root.ChildrenList)
{
var builder = new NodeBuilder(node);
if (builder.FunctionName == FunctionNames.Circle || builder.FunctionName == FunctionNames.Ellipse || builder.FunctionName == FunctionNames.LineTwoPoints || builder.FunctionName == FunctionNames.Arc || builder.FunctionName == FunctionNames.Arc3P)// || builder.FunctionName == FunctionNames.Point)
{
var currentSketchNode = FindSketchNode(node);
if (currentSketchNode.Index == sketchNode.Index)
{
nodesOnSketch.Add(node);
}
}
}
indexesList = new List <List <int> >();
foreach (var node in nodesOnSketch)
{
var builder = new NodeBuilder(node);
if (builder.FunctionName == FunctionNames.Circle || builder.FunctionName == FunctionNames.Ellipse)
{
// ensure the same circle isn't added more than once - if it were, it would be subtracted from itself and would become invisible
if (!circleNodes.Contains(node.Index))
{
circleNodes.Add(node.Index);
}
}
if (builder.FunctionName == FunctionNames.LineTwoPoints ||
builder.FunctionName == FunctionNames.Arc ||
builder.FunctionName == FunctionNames.Arc3P)
{
TryAutoGroup(Document, builder.Node);
}
}
var _candidates = new List <Node>();
foreach (var indexList in indexesList)
{
if (indexList.Count < 3)
{
continue;
}
if (indexList.Distinct().Count() != indexList.Count)
{
continue;
}
//build face
var entities = indexList.Select(index => new SceneSelectedEntity {
Node = Document.Root[index], ShapeType = TopAbsShapeEnum.TopAbs_WIRE
}).ToList();
var nb = new NodeBuilder(Document, FunctionNames.Face);
nb[0].ReferenceList = entities;
nb.ExecuteFunction();
if (nb.Shape != null)
{
if (GeomUtils.GetFaceArea(nb.Shape) > 0)
{
_candidates.Add(nb.Node);
}
else
{
Document.Root.Remove(nb.Node.Index);
}
}
else
{
Document.Root.Remove(nb.Node.Index);
}
}
var generatedFaceNodes = UpdateFaces(Document, _candidates);
if (generatedFaceNodes != null)
{
results.AddRange(generatedFaceNodes);
}
var shapesList = new List <TopoDSShape>();
foreach (var node in circleNodes)
{
var builder = new NodeBuilder(root[node]);
var addedEntiy = new SceneSelectedEntity {
Node = builder.Node, ShapeType = TopAbsShapeEnum.TopAbs_WIRE
};
var builder2 = new NodeBuilder(Document, FunctionNames.Face);
builder2[0].ReferenceList = new List <SceneSelectedEntity> {
addedEntiy
};
if (builder2.ExecuteFunction())
{
results.Add(builder2.Node);
}
else
{
Document.Root.Remove(builder2.Node.Index);
}
}
if (results.Count > 0)
{
var shapes = new Dictionary <int, List <int> >();
for (int i = 0; i < results.Count; i++)
{
shapes.Add(i, new List <int>());
}
for (int i = 0; i < results.Count; i++)
{
for (int j = i + 1; j < results.Count; j++)
{
//var position = ShapeIsInsideShape(new NodeBuilder(results[i]).Shape,
// new NodeBuilder(results[j]).Shape);
var newMethodValue =
RelativePosition(new NodeBuilder(results[i]).Shape, new NodeBuilder(results[j]).Shape);
if (newMethodValue == 2)
{
// first shape is inside second
shapes[j].Add(i);
shapes[i].Add(-1);
}
else
{
if (newMethodValue == 3)
{
// second shape is inside first
shapes[i].Add(j);
shapes[j].Add(-1);
}
}
}
}
var facesList = new Dictionary <int, List <int> >();
for (int i = 0; i < shapes.Count; i++)
{
if (!shapes[i].Contains(-1))
{
facesList.Add(i, shapes[i]);
}
}
// end form list
foreach (int i in facesList.Keys)
{
if (facesList[i].Count == 0)
{
var nb = new NodeBuilder(results[i]);
if (nb.Shape != null)
{
shapesList.Add(nb.Shape);
}
}
else
{
var bigShape = new NodeBuilder(results[i]).Shape;
foreach (var inner in facesList[i])
{
var innerShape = new NodeBuilder(results[inner]).Shape;
var subtract = new BRepAlgoAPICut(bigShape, innerShape);
if (subtract.IsDone)
{
bigShape = subtract.Shape;
}
}
var face = GeomUtils.ExtractFaces(bigShape);
if (face.Count == 1)
{
shapesList.Add(face[0]);
}
}
}
foreach (Node node in results)
{
Document.Root.Remove(node.Index);
}
if (generatedFaceNodes != null)
{
foreach (Node node in generatedFaceNodes)
{
Document.Root.Remove(node.Index);
}
}
foreach (var node in _candidates)
{
Document.Root.Remove(node.Index);
}
}
return(shapesList);
}
