The constructor for com.datastax.driver.dse.geometry.Point is Point(double x, double y)
The documentation says
the X coordinate is the longitude and the Y is the latitude.
Why is the X the longitude and Y the latitude? Seems counter intuitive.
I am just guessing here, but it feels intuitive to me. In mathematics, the Y-axis is usually the vertical one and X-axis is the horizontal one. Latitude lines intersect the Y-axis, so they have a Y-value and they are parallel with the X axis.
All points on equator have coordinate (x=alpha, y=0) for alpha in [-180, 180]
y
^
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+--------------------> x