geo

package

v0.0.0-...-62b3f6d Latest Latest Go to latest Published: Dec 30, 2021 License: Apache-2.0 Imports: 1 Imported by: 0

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type Ray struct {
	Origin    r3.Vector
	Direction r3.Vector
}

A parametrized curve (in our case, a straight line) which starts from an origin with direction in R3.

func (r Ray) At(t float64) r3.Vector

At returns the vector (at t) in R3 for a ray parametrized by r = a + tb, where a is `r.Origin` and b is `r.Direction`.