public void RunCase(CaseArgs selectedCase)
{
Welds.Clear();
Shell = selectedCase.Shell;
Neck = selectedCase.Neck;
if (!SetIntersectionCurves(selectedCase))
{
return;
}
DefinePadFlushPlane(_intersectOrigin, new Region(_innerIntersectionCurve).ConvertToSurface(), out var norm);
var center = FindCenter(selectedCase.CutRegion.ContourList.ToArray());
var trimBrep = OffsetRevolvedShell(_intersectedSurfaces, selectedCase.FilletLength,
_flipNorm, true, _relOrigin);
if (!DifferenceShells(trimBrep, ref Neck))
{
return;
}
BuildSetInNozzleWeld(selectedCase, trimBrep, center);
Shell.ExtrudeRemove(selectedCase.CutRegion, selectedCase.ExtrudeLength);
}
private bool SetIntersectionCurves(CaseArgs args)
{
if (!GetIntersectionCurves(args.Shell, args.Neck, out var tmpCurves))
{
return(false);
}
tmpCurves = UtilityEx.GetConnectedCurves(tmpCurves, 0.0001).ToList();
var ordered = tmpCurves.OrderByDescending(c => c.StartPoint.X);
_intersectionCurves.Add(ordered.Last());
if (tmpCurves.Count > 1)
{
_intersectionCurves.Add(ordered.First());
}
_intersectOrigin = FindCenter(_innerIntersectionCurve.GetIndividualCurves());
_relOrigin = new Point3D(0, 0, _intersectOrigin.Z);
return(true);
}
/*
*
* Various Helper methods
*
*/
private bool BuildSetInNozzleWeld(CaseArgs args, Brep offsetBrep, Point3D center)
{
/*
* INTERNAL FILLET
*
* The curve 'rail' is solved for by extruding the shell cut region, and intersecting it with
* the offset internal surface of the shell.
*
* The point 'topCorner' is determined by taking the point along the XZ Plane with the largest Z value
* off of the rail curve, internalTopPoint and bottomPoint are solved for using the Normal and planar axis.
*
*
* | |
* | |
* ----------------- SHELL -----------------------------------
* bottomPoint ----- topCorner
* - | |----------------------------------
* - | | NECK
* - | |
* internalTopPoint |
* |
* |----------------------------------
*
*/
var topCornerNeck = args.CutRegion.ExtrudeAsBrep(args.ExtrudeLength);
Brep.IntersectionLoops(topCornerNeck, offsetBrep, out var topCornerCurves);
if (!topCornerCurves.Any())
{
return(false);
}
var topCornerCurve = topCornerCurves.OrderByDescending(c => c.EndPoint.Z).First();
var approximatePoint = new Point3D(args.ReferencePoint.X + args.FilletLength, args.ReferencePoint.Y,
args.ReferencePoint.Z + args.NeckRadius + args.NeckThickness);
topCornerCurve.ClosestPointTo(approximatePoint, out var t);
var topCorner = topCornerCurve.PointAt(t);
var internalTopPoint = topCorner + -args.FilletLength * args.ExtrudePlane.AxisY;
var bottomPoint = topCorner + -args.FilletLength * args.Normal;
var weldFaceCurves = new List <ICurve>
{
new Line(topCorner, internalTopPoint),
new Line(internalTopPoint, bottomPoint),
new Line(bottomPoint, topCorner)
};
var weldFace = new Region(new CompositeCurve(weldFaceCurves, 0.0001, true));
switch (args.DisplayCase)
{
case Case.RegionAndRail:
Welds.Add(weldFace.ConvertToSurface().ConvertToBrep(0.0001));
Welds.Add(new Region(topCornerCurve).ConvertToSurface().ConvertToBrep(0.0001));
break;
case Case.Rotational:
Welds.Add(weldFace.RevolveAsBrep(0.0, 2 * Math.PI, args.Normal, center, 0.0001));
break;
case Case.Sweep:
Welds.Add(weldFace.SweepAsBrep(topCornerCurve, 0.0001, sweepMethodType.FrenetSerret));
break;
default:
throw new ArgumentException("Unknown display case.");
}
return(true);
}
public Nozzle(CaseArgs args)
{
RunCase(args);
}