# Points between two vector3 points?

Hi there,

i am wondering what would be the best way to calculate points between two vector3 points with a defined distance?

Thanks a lot for ideas!!!

Cheers

Vector maths is the way to go

Let A and B be two points, let P be any point lying along the line through AB, let the displacement of P from A be d.

Let U be the unit vector = (B.subtract(A)).normalize()

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Hi, i am doing something like this now

``````    for (let tupleIndex = 0; tupleIndex < pointTuple.length; tupleIndex++) {
// get the division count based on length per side
const distance = Vector3.Distance(
pointTuple[tupleIndex][0],
pointTuple[tupleIndex][1]
);
const divisions = Math.round(distance / gridSize);

//divide all edges.. push to sensorpoints
for (let index = 0; index < divisions; index++) {
const newSensorPoint = Vector3.Lerp(
pointTuple[tupleIndex][0],
pointTuple[tupleIndex][1],
(1 / divisions) * index
);

sensorPoints.push(newSensorPoint);
}
}
``````

does using Vector3.Lerp makes sense there? i am trying to make this usable for hundereds/thousands of points, so speed may be importandâ€¦ (i actually have no idea wether this is slow or notâ€¦)

Thanks a lot!

If you didnâ€™t use Vector3.Lerp you would have to write your own Lerp. Best way is to do a simple simulation in a playground with manually or randomly generated points and see how it goes.

If point are evenly spaced on the line subtract end points and scale by 1/count. Like this:

1 Like

Thanks! that seems to be way cleaner!
ill give it a try