public BoxFace GetBoxFaceWhichFacesNormal(Vector3 normal)
{
List <Plane> facePlanes = GetBoxFacePlanes();
int planeIndex;
PlaneExtensions.GetPlaneWhichFacesNormal(facePlanes, normal, out planeIndex);
return((BoxFace)planeIndex);
}
public BoxFace GetBoxFaceMostAlignedWithNormal(Vector3 normal)
{
List <Plane> facePlanes = GetBoxFacePlanes();
int planeIndex;
PlaneExtensions.GetPlaneMostAlignedWithNormal(facePlanes, normal, out planeIndex);
return((BoxFace)planeIndex);
}
private void CalculateIndexOfStrokeAlignmentSegmentPlane()
{
int indexOfPointClosestToStrokeSurfacePickPoint = _pivotPointsOfLastPlacedHierarchy.GetIndexOfPointClosestToPoint(_strokeSurface.MouseCursorPickPoint);
if (indexOfPointClosestToStrokeSurfacePickPoint != ProjectedBoxFacePivotPoints.IndexOfPointInCenter)
{
Vector3 pivotPointClosestToStrokeSurfacePickPoint = _pivotPointsOfLastPlacedHierarchy.GetPointByIndex(indexOfPointClosestToStrokeSurfacePickPoint);
// Now identify the segment whose center point is closest to the calculated pivot point
List <Segment3D> segments = _pivotPointsOfLastPlacedHierarchy.GetAllBoundarySegments();
int indexOfBestSegment = -1;
float minDistance = float.MaxValue;
for (int segmentIndex = 0; segmentIndex < segments.Count; ++segmentIndex)
{
Segment3D segment = segments[segmentIndex];
Vector3 segmentMidPoint = segment.GetPoint(0.5f);
float distanceFromPivotPoint = (segmentMidPoint - pivotPointClosestToStrokeSurfacePickPoint).magnitude;
if (distanceFromPivotPoint < minDistance)
{
minDistance = distanceFromPivotPoint;
indexOfBestSegment = segmentIndex;
}
}
_indexOfStrokeAlignmentSegmentPlane = indexOfBestSegment;
}
else
{
Vector3 fromCenterToStrokeSurfacePickPoint = _strokeSurface.MouseCursorPickPoint - _pivotPointsOfLastPlacedHierarchy.CenterPoint;
List <Plane> pivotPointBoundarySegmentPlanes = _pivotPointsOfLastPlacedHierarchy.GetAllBoundarySegmentPlanes();
_indexOfStrokeAlignmentSegmentPlane = PlaneExtensions.GetIndexOfPlaneWhoseNormalIsMostAlignedWithDir(pivotPointBoundarySegmentPlanes, fromCenterToStrokeSurfacePickPoint);
}
/* Left here for reference. This is the way in which it was initially done.
* if(indexOfPointClosestToStrokeSurfacePickPoint != ProjectedBoxFacePivotPoints.IndexOfPointInCenter)
* {
* Vector3 pivotPointClosestToStrokeSurfacePickPoint = _pivotPointsOfLastPlacedHierarchy.GetPointByIndex(indexOfPointClosestToStrokeSurfacePickPoint);
* Vector3 fromCenterPivotToCalculatedClosestPoint = pivotPointClosestToStrokeSurfacePickPoint - _pivotPointsOfLastPlacedHierarchy.CenterPoint;
*
* pivotPointBoundarySegmentPlanes = _pivotPointsOfLastPlacedHierarchy.GetAllBoundarySegmentPlanes();
* _indexOfStrokeAlignmentSegmentPlane = PlaneExtensions.GetIndexOfPlaneWhoseNormalIsMostAlignedWithDir(pivotPointBoundarySegmentPlanes, fromCenterPivotToCalculatedClosestPoint);
* }
* else
* {
* fromClosestPointToStrokeSurfacePickPoint = _strokeSurface.MouseCursorPickPoint - _pivotPointsOfLastPlacedHierarchy.CenterPoint;
* pivotPointBoundarySegmentPlanes = _pivotPointsOfLastPlacedHierarchy.GetAllBoundarySegmentPlanes();
* _indexOfStrokeAlignmentSegmentPlane = PlaneExtensions.GetIndexOfPlaneWhoseNormalIsMostAlignedWithDir(pivotPointBoundarySegmentPlanes, fromCenterPivotToStrokeSurfacePickPoint);
* }
*/
}
public bool AreAllBoxPointsOnOrInFrontOfAnyFacePlane(OrientedBox otherBox)
{
List <Vector3> otherBoxPoints = otherBox.GetCenterAndCornerPoints();
List <Plane> allFacePlanes = GetBoxFacePlanes();
foreach (Plane plane in allFacePlanes)
{
if (PlaneExtensions.AreAllPointsInFrontOrOnPlane(plane, otherBoxPoints))
{
return(true);
}
}
return(false);
}