Interface OBJ_Sphere

Sphere shape options object that extends OBJ_Generic3All and OBJ_FigurePrimitive

By default, a sphere with its center at the origin will be created.

sides number — number of sides around sphere's half great circle (10)
radius number — radius of sphere (1)
normals flat | curve — flat normals will make light shading across a face cone constant. curve will gradiate the shading. Use curve to make a surface look more round with fewer number of sides. (flat)
center TypeParsablePoint — center position of sphere ([0, 0])
lines boolean — if true then points representing the edes of the faces will be returned. If false, then points representing two triangles per face and an associated normal for each point will be returned.

See

To test examples, append them to the boilerplate

Example

figure.add({
  make: 'sphere',
  radius: 0.5,
  color: [1, 0, 0, 1],
});

Example

// Sphere with 'curve' normals
figure.add({
  make: 'sphere',
  radius: 0.5,
  normals: 'curve',
  color: [1, 0, 0, 1],
});

Example

// Wire mesh sphere
figure.add({
  make: 'sphere',
  radius: 0.5,
  sides: 30,
  lines: true,
  normals: 'curve',
  color: [1, 0, 0, 1],
});

Example

// Ring of spheres, rotated to by in xz plane
figure.add({
  make: 'sphere',
  radius: 0.1,
  color: [1, 0, 0, 1],
  center: [0.3, 0, 0],
  normals: 'curve',
  copy: [
    { along: 'rotation', num: 10, step: Math.PI * 2 / 10 },
  ],
  transform: ['r', Math.PI / 2, 1, 0, 0],
});
@interface

Interface OBJ_Sphere

See

Example

Example

Example

Example

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