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package com.mapbox.mapboxsdk.style.light;
/**
* Position of the light source relative to lit (extruded) geometries.
* <p>
* The position is constructed out of a radial coordinate, an azimuthal angle and a polar angle.
* where the radial coordinate indicates the distance from the center of the base of an object to its light, the
* azimuthal angle indicates the position of the light relative to 0° (0° when
* {@link com.mapbox.mapboxsdk.style.layers.Property.ANCHOR} is set to viewport corresponds to the top of the
* viewport, or 0° when {@link com.mapbox.mapboxsdk.style.layers.Property.ANCHOR} is set to map corresponds to due
* north, and degrees proceed clockwise), and polar indicates the height of the light
* (from 0°, directly above, to 180°, directly below).
*/
public class Position {
private float radialCoordinate;
private float azimuthalAngle;
private float polarAngle;
/**
* Creates a Position from a radial coordinate, an azimuthal angle and a polar angle.
*
* @param radialCoordinate the distance from the center of the base of an object to its light
* @param azimuthalAngle the position of the light relative to 0°
* @param polarAngle the height of the light
*/
public Position(float radialCoordinate, float azimuthalAngle, float polarAngle) {
this.radialCoordinate = radialCoordinate;
this.azimuthalAngle = azimuthalAngle;
this.polarAngle = polarAngle;
}
/**
* Returns a Position from a radial coordinate, an azimuthal angle and a polar angle
*
* @param radialCoordinate the radial coordinate
* @param azimuthalAngle the azimuthal angle
* @param polarAngle the polar angle
* @return the created Position object
*/
public static Position fromPosition(float radialCoordinate, float azimuthalAngle, float polarAngle) {
return new Position(radialCoordinate, azimuthalAngle, polarAngle);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Position position = (Position) o;
if (Float.compare(position.radialCoordinate, radialCoordinate) != 0) {
return false;
}
if (Float.compare(position.azimuthalAngle, azimuthalAngle) != 0) {
return false;
}
return Float.compare(position.polarAngle, polarAngle) == 0;
}
@Override
public int hashCode() {
int result = (radialCoordinate != +0.0f ? Float.floatToIntBits(radialCoordinate) : 0);
result = 31 * result + (azimuthalAngle != +0.0f ? Float.floatToIntBits(azimuthalAngle) : 0);
result = 31 * result + (polarAngle != +0.0f ? Float.floatToIntBits(polarAngle) : 0);
return result;
}
@Override
public String toString() {
return "Position{"
+ "radialCoordinate=" + radialCoordinate
+ ", azimuthalAngle=" + azimuthalAngle
+ ", polarAngle=" + polarAngle
+ '}';
}
}
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