File size: 953 Bytes
b797337 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | /**
* Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
*/
class Cylindrical {
constructor( radius = 1, theta = 0, y = 0 ) {
this.radius = radius; // distance from the origin to a point in the x-z plane
this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
this.y = y; // height above the x-z plane
return this;
}
set( radius, theta, y ) {
this.radius = radius;
this.theta = theta;
this.y = y;
return this;
}
copy( other ) {
this.radius = other.radius;
this.theta = other.theta;
this.y = other.y;
return this;
}
setFromVector3( v ) {
return this.setFromCartesianCoords( v.x, v.y, v.z );
}
setFromCartesianCoords( x, y, z ) {
this.radius = Math.sqrt( x * x + z * z );
this.theta = Math.atan2( x, z );
this.y = y;
return this;
}
clone() {
return new this.constructor().copy( this );
}
}
export { Cylindrical };
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