CircleGeometry
CircleGeometry is a simple shape of Euclidean geometry. It is constructed from a number of triangular segments that are oriented around a central point and extend as far out as a given radius. It is built counter-clockwise from a start angle and a given central angle. It can also be used to create regular polygons, where the number of segments determines the number of sides.
Code Example
const geometry = new THREE.CircleGeometry( 5, 32 ); const material = new
THREE.MeshBasicMaterial( { color: 0xffff00 } ); const circle = new THREE.Mesh(
geometry, material ); scene.add( circle );
Constructor
CircleGeometry
function CircleGeometry( radius: Float, segments: Integer, thetaStart: Float,
thetaLength: Float ): void;
radius — Radius of the circle, default = 1.
segments — Number of segments (triangles), minimum = 3, default = 32.
thetaStart — Start angle for first segment, default = 0 (three o'clock
position).
thetaLength — The central angle, often called theta, of the circular sector.
The default is 2*Pi, which makes for a complete circle.
Properties
See the base BufferGeometry class for common properties.
parameters
parameters: Object;
An object with a property for each of the constructor parameters. Any modification after instantiation does not change the geometry.
Methods
See the base BufferGeometry class for common methods.