/// <summary>
/// Basic collision detection routine for single item placement.
/// </summary>
/// <param name="room">Room currently being populated.</param>
/// <param name="candidate">PlacementPackaged being checked for fidelity.</param>
/// <param name="pm"></param>
/// <returns></returns>
public static bool PlacementIsValid(RoomPackage room, PlacementPackage candidate, ProgramManifest pm)
{
//Verify placed item does not clash with previously placed items.
foreach (PlacementPackage placedItem in room.PlacedItems)
{
if (Confirm.CurvesIntersect(placedItem.Bounds, candidate.Bounds, true))
{
if (Confirm.CurvesIntersect(placedItem.Bounds, candidate.Bounds, false))
{
return(false);
}
CurveIntersections ccx = Intersection.CurveCurve(placedItem.Bounds, candidate.Bounds, 0.1, 0.1);
if (ccx.Count(x => x.IsOverlap) > 1)
{
return(false);
}
}
PointContainment insideCheck = placedItem.Bounds.Contains(candidate.Bounds.GetBoundingBox(Plane.WorldXY).Center);
if (insideCheck == PointContainment.Inside || insideCheck == PointContainment.Coincident)
{
return(false);
}
}
//Verify item is completely within boundary of room.
foreach (Curve edgeCurve in room.AllEdgeCurves)
{
if (Confirm.CurvesIntersect(candidate.Bounds, edgeCurve, false))
{
return(false);
}
/*
* if (!Confirm.PointInRegion(room.Region, new CurveBounds(candidate.Bounds).Center))
* {
* return false;
* }
*/
}
//Verify program area is not larger than total room area.
if (room.Region.GetArea() < pm.ProgramPackages[candidate.ProgramIndex].OccupationArea)
{
return(false);
}
return(true);
}
public static Curve TrimWithClosedCurve(Curve trimRegion, Curve curve)
{
//TODO: Confirm that persistent error with Curve.Trim is my fault and not Rhino Compute. Seems to always return null, like Offset.
bool curvesIntersect = Confirm.CurvesIntersect(trimRegion, curve, false);
if (curve.Degree > 1)
{
//Current stopgap to compensate for Curve.Trim rebuilds from intersection points. Output is incorrect for nonlinear curves.
return(curve);
}
Console.WriteLine("Curves intersect!");
Console.WriteLine(curve.PointAtStart.ToString());
if (!curvesIntersect)
{
Console.WriteLine("Trim region and curve do not intersect. Returning original curve.");
return(curve);
}
List <Point3d> trimPoints = new List <Point3d>();
Rhino.Geometry.Intersect.CurveIntersections ccx = Rhino.Geometry.Intersect.Intersection.CurveCurve(trimRegion, curve, 0.1, 0.1);
if (ccx.Count != 2)
{
Console.WriteLine("Not exactly two intersection events. Circulation axis placement is invalid. Returning original curve.");
return(curve);
}
for (int i = 0; i < ccx.Count; i++)
{
trimPoints.Add(ccx[i].PointB);
}
Curve trimmedCurve = new LineCurve(trimPoints[0], trimPoints[1]);
/*
* if (trimmedCurve == null)
* {
* Console.WriteLine("Damn.");
* return curve;
* }
*/
return(trimmedCurve);
}
