public override void QueryOffset(Pnt point, out double offset, out double along)
{
along = 0;
offset = 0;
bool rightSide = false;
QPoint.PutCoords(point.X, point.Y);
InnerSegment.QueryPointAndDistance(esriSegmentExtension.esriExtendTangents, QPoint,
true, QPoint, ref along, ref offset, ref rightSide);
}
