/// <summary>
/// Projects this vector onto other vector.
/// </summary>
/// <param name="other">The vector being projected onto</param>
/// <returns></returns>
public DoubleVector2 ProjectOnto(DoubleVector2 other)
{
var numerator = other.Dot(this);
var denominator = other.SquaredNorm2D();
return(new DoubleVector2(
(other.X * numerator) / denominator,
(other.Y * numerator) / denominator));
}
private void InsertInternal(ref IntLineSegment2 s, double insertionThetaLower, double insertionThetaUpper, bool supportOverlappingLines)
{
if (insertionThetaLower == insertionThetaUpper)
{
return;
}
// Console.WriteLine($"InsertInternal: {s}, {thetaLower} {thetaUpper}");
// cull if wall faces away from origin
var sperp = new DoubleVector2(s.Y2 - s.Y1, -(s.X2 - s.X1));
var os1 = _origin.To(s.First.ToDoubleVector2());
if (sperp.Dot(os1) < 0)
{
//return;
}
var rangeId = rangeIdCounter++;
InsertInternalInternal(s, rangeId, insertionThetaLower, insertionThetaUpper, supportOverlappingLines, false);
}
/// <summary>
/// result * other ~= Proj(this onto other)
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public double ProjectOntoComponentD(DoubleVector2 other)
{
return(other.Dot(this) / other.SquaredNorm2D());
}