Feature request: point n% of the way between two points about geodesy HOT 3 CLOSED

I suppose one solution that I could use, in lieu of this, is to keep dividing in half, so 1/4 of the way there would be

let midpoint = sourcePoint.midpointTo(destinationPoint);

sourcePoint.midpointTo(midpoint); // 1/4 of the way there
midpoint // 1/2 of the way there
midpoint.midpointTo(destinationPoint); // 3/4 of the way there

from geodesy.

Bryan,

I've added the formula for an intermediate point
http://www.movable-type.co.uk/scripts/latlong.html#intermediate-point at
a fraction along the path between two points.

I'm not sure I'll bother adding it to the library, so I'll leave it to you
to code up...

Chris

On 1 September 2015 at 19:31, Bryan Burgers [email protected]
wrote:

I can't find anywhere on the internet that describes the algorithm to do
this. Your midpoint algorithm is the closest I can find:

Similar to .midpointTo, but where it is an arbitrary percentage (or
distance, either one) along the path from one point to another, where
.midpointTo is exactly halfway.

sourcePoint.midpointToN(destinationPoint, 0.5) == sourcePoint.midpointTo(destinationPoint);
sourcePoint.midpointToN(destinationPoint, 0.1); // 1/10th of the way there.
sourcePoint.midpointToN(destinationPoint, 0.9); // 9/10ths of the way there.
sourcePoint.midpointToN(destinationPoint, 1) == destinationPoint

.midpointToN is a bad name, obviously, since it isn't calculating the
midpoint. .percantageDistanceTo?

—
Reply to this email directly or view it on GitHub
#17.

from geodesy.

LatLon.intermediatePoint() method added.

from geodesy.