public override List <SolverPreviewObject> InterestingShapeAroundPoint(gpPln planeOfTheView, Point3D point)
{
var qosLock = QosFactory.Instance.Get(QosNames.EdgeMatchLock);
qosLock.Begin();
foreach (var edge in Geometry.SelectMany(geometricObject => geometricObject.Edges))
{
// Calculate the distance from the point to the curve
GeomCurve curve;
var first = 0.0;
var last = 0.0;
unsafe
{
curve = BRepTool.Curve(edge.Edge, ref first, ref last);
}
if (curve == null)
{
continue;
}
// Add a curve domain protection
if (first > last)
{
continue;
}
ExtremaExtPC extrema = null;
try
{
var adaptor = new GeomAdaptorCurve(curve, first, last);
extrema = new ExtremaExtPC(point.GpPnt, adaptor, Precision.Confusion);
}
catch
{
Log.Debug("Exception on generate extrema points");
}
if (extrema == null)
{
continue;
}
if (!extrema.IsDone)
{
continue;
}
if (extrema.NbExt < 1)
{
continue;
}
// The point is on edge
if (extrema.SquareDistance(1) >= CoreGlobalPreferencesSingleton.Instance.ZoomLevel * _precision)
{
continue;
}
// Generate a point on the edge by projecting
var projectionPoint = new GeomAPIProjectPointOnCurve(point.GpPnt, curve);
if (projectionPoint.NbPoints <= 0)
{
continue;
}
List <SolverGeometricObject> selectedEdge = Geometry.Where(geomObj => geomObj.Edges.Contains(edge)).ToList();
//LastGeometry.Clear();
//LastGeometry.AddRange(selectedEdge);
var originPoint = new SolverGeometricObject(null);
originPoint.AddPoint(new SolverDataPoint(new Point3D()));
var result = GeomUtils.ProjectPointOnPlane(new Point3D().GpPnt, planeOfTheView, Precision.Confusion);
//if(result == new gpPnt(0,0,0))
//{
// LastGeometry.Add(originPoint);
//}
if (selectedEdge.Count > 0 && selectedEdge.First().Edges.Count > 0)
{
return new List <SolverPreviewObject>()
{
new SolverPointResult(new Point3D(projectionPoint.NearestPoint), selectedEdge.First().Edges.First().ParentIndex)
}
}
; // {Text = "On Edge"};
else
{
return new List <SolverPreviewObject>()
{
new SolverPointResult(new Point3D(projectionPoint.NearestPoint))
}
};
}
qosLock.End();
return(new List <SolverPreviewObject>());
}
}
/// <summary>
/// Detects if the point is on the curve that describes the edge.
/// </summary>
/// <param name = "planeOfTheView"></param>
/// <param name = "point"></param>
/// <returns></returns>
public override List <SolverPreviewObject> InterestingShapeAroundPoint(gpPln planeOfTheView, Point3D point)
{
var qosLock = QosFactory.Instance.Get(QosNames.EdgeContinuationMatchLock);
qosLock.Begin();
foreach (var edge in LastGeometry.SelectMany(geometricObject => geometricObject.Edges))
{
// Calculate the distance from the point to the curve
GeomCurve curve;
double first = 0;
double last = 0;
// unsafe
{
curve = BRepTool.Curve(edge.Edge, ref first, ref last);
}
if (curve == null)
{
continue;
}
ExtremaExtPC extrema = null;
try
{
var adaptor = new GeomAdaptorCurve(curve);
extrema = new ExtremaExtPC(point.GpPnt, adaptor, Precision.Confusion);
}
catch (Exception)
{
Log.Debug("Exception on extract paralel axis");
}
if (extrema == null)
{
continue;
}
if (!extrema.IsDone)
{
continue;
}
if (extrema.NbExt < 1)
{
continue;
}
// The point is on edge
if (extrema.SquareDistance(1) >= _precision)
{
continue;
}
// Generate a point on the edge by projecting
var projectionPoint = new GeomAPIProjectPointOnCurve(point.GpPnt, curve);
if (projectionPoint.NbPoints <= 0)
{
continue;
}
var lastPoint = curve.Value(last);
return(new List <SolverPreviewObject>()
{
new SolverEdgeTwoPointsResult(new Point3D(projectionPoint.NearestPoint), new Point3D(lastPoint))
{
Type = "Line Continuation"
}
});
}
qosLock.End();
return(new List <SolverPreviewObject>());
}