/// <summary>
/// Creates a new instance of <see cref="LinePointUVAndSegment"/> based on the starting point <paramref name="linePoint"/> and filling in segment information based on the <paramref name="otherPoint"/>.
/// </summary>
/// <param name="linePoint">The line point which is the start of the line segment.</param>
/// <param name="otherPoint">The other point in the line segment.</param>
public LinePointUVAndSegment(LinePointUV linePoint, Vector2 otherPoint)
{
Parameter = linePoint.Parameter;
Point = linePoint.Point;
UV = linePoint.UV;
OtherPoint = otherPoint;
var segmentVector = otherPoint - linePoint.Point;
SegmentTangent = segmentVector.normalized;
SegmentNormal = NormalUtil.NormalFromTangent(SegmentTangent);
SegmentLength = segmentVector.magnitude;
}
/// <summary>
/// Get an intersection point along an extruded segment, due to a neighbouring segment, given the extrusion amount and fraction along the segment where the intersection occurs.
/// </summary>
/// <param name="pointVector"></param>
/// <param name="segmentDirection">Segment direction vector</param>
/// <param name="extrusionMagnitudeFractionAlongSegment">Fraction of extrusion distance along the segment</param>
/// <param name="extrusionAmount">The extrusion amount</param>
internal static Vector2 GetExtrudedSegmentNeighbouringIntersectionPoint(Vector2 pointVector, Vector2 segmentDirection, double extrusionMagnitudeFractionAlongSegment, float extrusionAmount)
{
var normal = NormalUtil.NormalFromTangent(segmentDirection);
return(pointVector + extrusionAmount * normal + Mathf.Abs(extrusionAmount) * segmentDirection * (float)extrusionMagnitudeFractionAlongSegment);
}
