File: LatheGeometry.md | Updated: 11/15/2025
Creates meshes with axial symmetry like vases. The lathe rotates around the Y axis.
const points = [];
for ( let i = 0; i < 10; i ++ ) {
points.push( new THREE.Vector2( Math.sin( i * 0.2 ) * 10 + 5, ( i - 5 ) * 2 ) );
}
const geometry = new THREE.LatheGeometry( points );
const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
const lathe = new THREE.Mesh( geometry, material );
scene.add( lathe );
Constructs a new lathe geometry.
points | An array of points in 2D space. The x-coordinate of each point must be greater than zero.
---|---
segments | The number of circumference segments to generate. Default is 12.
phiStart | The starting angle in radians. Default is 0.
phiLength | The radian (0 to 2PI) range of the lathed section 2PI is a closed lathe, less than 2PI is a portion. Default is Math.PI*2.
Holds the constructor parameters that have been used to generate the geometry. Any modification after instantiation does not change the geometry.
Factory method for creating an instance of this class from the given JSON object.
data | A JSON object representing the serialized geometry.
---|---
Returns: A new instance.