gnss-tool-kit/src/render/api/util.js

export function filterNonNumber (array) {
  return array.filter(n => typeof n === 'number')
}

export function mulAdd (nums) {
  nums = filterNonNumber(nums)

  return nums.reduce((all, num) => all + num, 0)
}

export function getTwoPointDistance (pointOne, pointTwo) {
  const minusX = Math.abs(pointOne[0] - pointTwo[0])

  const minusY = Math.abs(pointOne[1] - pointTwo[1])

  return Math.sqrt(minusX * minusX + minusY * minusY)
}

export function getPolylineLength(points) {
	const lineSegments = new Array(points.length - 1)
    .fill(0)
    .map((foo, i) => [points[i], points[i + 1]])

  const lengths = lineSegments.map(item => getTwoPointDistance(...item))

  return mulAdd(lengths)
}

export function get_in_positioning_id(GSAArr) {
	let in_positioning_id = []
	GSAArr.forEach(({ satellites }) => {
		in_positioning_id.push(...satellites)
	});

	return in_positioning_id
}