private void offsetSegment(Segment seg, OffsetDir dir)
{
//simple version:
XYZ vector = seg.OutsideRoomVector;
if (dir == OffsetDir.Inward)
{
vector = vector.Negate();
}
// see online help for Curve.CreateOffset.
// we don't specify the direction, we specify the up direction so that the curve is offset to the right.
Transform t = seg.Curve.ComputeDerivatives(0.5, true);
XYZ forward = t.BasisX;
XYZ cross = vector.CrossProduct(forward).Normalize();
// then use the cross product (presumably up or down) as the reference vector
seg.Curve = seg.Curve.CreateOffset(seg.Thickness / 2.0, cross);
}
private void adjustByRules(RoomObject ro)
{
// remove any column type boundaries
var columns = ro.Boundaries.Where(b => b.ElementType == "Columns").ToList();
foreach (var col in columns)
{
ro.Boundaries.Remove(col);
}
bool isCorridor = (ro.Name.ToUpper().Contains("CORR"));
if (isCorridor)
{
ignoreRoom(ro);
return;
}
// go through the boundaries and offset.
foreach (var seg in ro.Boundaries)
{
if (isCorridor)
{
// we skip it unless it doesn't have an opposite
if (seg.OppositeRoom != null)
{
continue;
}
}
OffsetDir offset = OffsetDir.None;
// determine whether to offset inwards, outwards, or leave
if (seg.IsExterior)
{
if (seg.WallKind != WallKind.Curtain)
{
offset = OffsetDir.Inward;
}
}
else
{
// compare against an opposite room
if (seg.OppositeRoom != null)
{
if (seg.OppositeRoom.Score > ro.Score)
{
offset = OffsetDir.Inward;
}
if (seg.OppositeRoom.Score < ro.Score)
{
offset = OffsetDir.Outward;
}
}
}
// offset the segment:
if (offset != OffsetDir.None)
{
offsetSegment(seg, offset);
}
}
}