38 lines
854 B
JavaScript
38 lines
854 B
JavaScript
import { lineString, bezierSpline } from '@turf/turf'
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export function cartesian32LonLat(cartesian3) {
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const cartographic =
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viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian3)
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const lat = Cesium.Math.toDegrees(cartographic.latitude)
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const lon = Cesium.Math.toDegrees(cartographic.longitude)
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const height = cartographic.height
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return [lon, lat, height]
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}
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export function getPositionFromTime(
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startTime,
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pos,
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totalAnimationTime,
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interval = 100
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) {
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const points = []
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for (let i = 0; i <= totalAnimationTime / interval; i++) {
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const time = Cesium.JulianDate.addSeconds(
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startTime,
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i,
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new Cesium.JulianDate()
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)
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const point = pos.getValue(time)
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point && points.push(point)
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}
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return points
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}
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export function getBezierSpline(points) {
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return bezierSpline(lineString(points))
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}
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