Geometries

Built-in Geometries

Here are described how to use built-in geometries. All examples are for the complex constructors and all images are given for Mesh objects. Simple constructors are available also.

More documentation see in the API Reference

All the following classes are inherited from the Geometry class.

Circle

// In this example will be drawn a full circle. 
CircleGeometry geometry = new CircleGeometry(
    50    // Sets the radius for circle.
    30,   // The number of segments of a circle. The more segments 
          // a circle contains, the smoother its contour will be.
    0,    // Start angle.
    Math.PI * 2.0   // The length of the angle. 
);

Plane

// Lets draw a square plane
PlaneGeometry geometry = new PlaneGeometry(
    10,   // Sets the width of a plane
    10,   // Sets the height of a plane
     1,   // The number of segments in a width
     1    // The number of segments in a height
);

Cube

CubeGeometry geometry = new CubeGeometry(
    10,   // Sets the width of a cube
    10,   // Sets the height of a cube
    10,   // Sets the depth of a cube
     1,   // The number of segments in a width
     1,   // The number of segments in a height
     1    // The number of segments in a depth
);

Cylinder

CylinderGeometry geometry = new CylinderGeometry(
    20,   // Sets the top radius.
    20,   // Sets the bottom radius.
    20,   // Sets the height of a cylinder.
    30,   // The number of segments of top and bottom circles. The more segments 
          // a circle contains, the smoother its contour will be. 
    1,    // The number of segments in a height.
    false // If true, top and bottom circles will not be drawn.
);

Sphere

SphereGeometry geometry = new SphereGeometry(
    30,   // Sets the radius for sphere
    30,   // The number of segments in a width
    30,   // The number of segments in a height. The more segments 
          // a sphere contains, the smoother its contour will be.
    0,    // Start horizontal angle 
    Math.PI * 2,  // The length of the horizontal angle. 
    0,    // Start vertical angle 
    Math.PI * 2   // The length of the vertical angle. 
);

Torus

TorusGeometry geometry = TorusGeometry(
    30,   // Sets the radius for torus
    10,   // Sets the radius for torus's tube
    20,   // The number of segments in a torus radius.
    20,   // The number of segments in a torus's tube radius.
    Math.PI * 2.0 // The angle of a torus
);

Torus Knot

TorusKnotGeometry geometry = new TorusKnotGeometry(
    30,   // Sets the radius for torus knot.
    10,   // Sets the radius for torus knot's tube.
    20,   // The number of segments in a torus knot radius.
    20,   // The number of segments in a torus knot's tube radius.
    2,    // Sets knot winds times around its axis of rotational symmetry.
    3,    // Sets knot winds times around a circle in the interior of the torus.
    1     // Sets the height scale
);

Polyhedron Geometry

PolyhedronGeometry is abstract class which is inherited from the Geometry class.

This is family of the following classes, which are inherited from the PolyhedronGeometry

Tetrahedron

TetrahedronGeometry geometry = new TetrahedronGeometry(
    30,   // Sets the radius of tetrahedron 
    0     // Sets the frequency of decomposition
);

Octahedron

OctahedronGeometry geometry = new OctahedronGeometry(
    30,   // Sets the radius of octahedron 
    0     // Sets the frequency of decomposition
);

Icosahedron

IcosahedronGeometry geometry = new IcosahedronGeometry(
    30,   // Sets the radius of icosahedron
    0     // Sets the frequency of decomposition
);