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title: CylinderGeometry category: Core layout: docs

CylinderGeometry

A geometry class for representing a cylinder.

Code Example

const geometry = new THREE.CylinderGeometry( 5, 5, 20, 32 );
const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
const cylinder = new THREE.Mesh( geometry, material );
scene.add( cylinder );

Constructor

new CylinderGeometry( radiusTop : number, radiusBottom : number, height : number, radialSegments : number, heightSegments : number, openEnded : boolean, thetaStart : number, thetaLength : number )

Constructs a new cylinder geometry.

radiusTop | Radius of the cylinder at the top. Default is 1.
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radiusBottom | Radius of the cylinder at the bottom. Default is 1.
height | Height of the cylinder. Default is 1.
radialSegments | Number of segmented faces around the circumference of the cylinder. Default is 32.
heightSegments | Number of rows of faces along the height of the cylinder. Default is 1.
openEnded | Whether the base of the cylinder is open or capped. Default is false.
thetaStart | Start angle for first segment, in radians. Default is 0.
thetaLength | The central angle, often called theta, of the circular sector, in radians. The default value results in a complete cylinder. Default is Math.PI*2.

Properties

.parameters : Object

Holds the constructor parameters that have been used to generate the geometry. Any modification after instantiation does not change the geometry.

Static Methods

.fromJSON( data : Object ) : CylinderGeometry

Factory method for creating an instance of this class from the given JSON object.

data | A JSON object representing the serialized geometry.
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Returns: A new instance.

Source

src/geometries/CylinderGeometry.js