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67 lines
1.7 KiB
Java
67 lines
1.7 KiB
Java
package com.verictas.pos.simulator.mathUtils;
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import javax.vecmath.Vector3d;
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public class AU {
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/**
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* Helper class for working with astronomical units
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*/
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/**
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* Converts AU to meters
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* @param input Vector3d with values in AU
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* @return Vector3d with values in meter
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*/
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public static Vector3d convertToMeter(Vector3d input) {
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Vector3d output = new Vector3d(input);
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// Convert AU to m by NASA
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output.scale(149597870.700); // Number to large when multiplied with 1000
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output.scale(1000);
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return output;
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}
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/**
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* Converts AU/day to m/s
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* @param input Vector3d with values in AU/day
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* @return Vector3d with values in m/s
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*/
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public static Vector3d convertToMetersPerSecond(Vector3d input) {
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Vector3d output = new Vector3d(input);
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// 1 AU/day to M/s
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output.scale(1731456.84);
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return output;
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}
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/**
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* Converts meters to AU for data collection
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* @param input Vector3d with values in meters
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* @return Vector3d with values in AU
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*/
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public static Vector3d convertFromMeter(Vector3d input) {
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Vector3d output = new Vector3d(input);
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// Convert m to AU by NASA
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output.scale(6.6845871E-12);
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return output;
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}
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/**
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* Converts m/s to AU/day for data collection
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* @param input Vector3d with values in m/s
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* @return Vector3d with values in AU/day
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*/
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public static Vector3d convertFromMetersPerSecond(Vector3d input) {
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Vector3d output = new Vector3d(input);
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// Convert seconds to days by NASA
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output.scale(5.77548327E-7);
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return output;
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}
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}
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