Implements ST_LineInterpolatePoint about simplefeatures HOT 3 OPEN

Great suggestion, there are a bunch of other related functions that would be useful too: https://postgis.net/docs/reference.html#Linear_Referencing

I'll consider implementing these as the next major feature.

from simplefeatures.

The reason that LineString isn't implemented as []Point is that Point may optionally be empty (i.e. WKT POINT EMPTY). However, the coordinates that make up a LineString cannot be empty.

That's a good suggestion for exposing a Line object. There is an internal object that is very similar, I'll take a look to see what the implications of exposing it might be.

from simplefeatures.

This is a high-quality spatial geometry analysis package
I have some immature suggestions

1. LineString with []Point may be easier to understand
2. Coordinates are literally multiple points, and Coordinate may be more appropriate
3. line composed of two points is called segment in JTS(https://github.com/locationtech/jts/blob/master/modules/core/src/main/java/org/locationtech/jts/geom/LineSegment.java). export with Line is also very useful

from simplefeatures.