Struct Intersection

path_intersection_util.go:91–97

Intersection is an intersection between two path segments, e.g. Line x Line. Note that an intersection is tangent also when it is at one of the endpoints, in which case it may be tangent for this segment but may or may not cross the path depending on the adjacent segment. Notabene: for quad/cube/ell

// for this segment but may or may not cross the path depending on the adjacent segment.
// Notabene: for quad/cube/ellipse aligned angles at the endpoint for non-overlapping curves are deviated slightly to correctly calculate the value for Into, and will thus not be aligned
type Intersection struct {
	Point              // coordinate of intersection
	T       [2]float64 // position along segment [0,1]
	Dir     [2]float64 // direction at intersection [0,2*pi)
	Tangent bool       // intersection is tangent (touches) instead of secant (crosses)
	Same    bool       // intersection is of two overlapping segments (tangent is also true)
}

// Into returns true if first path goes into the left-hand side of the second path,
// i.e. the second path goes to the right-hand side of the first path.