VglRingGeometry

This is a simple shape component of Euclidean geometry, corresponding THREE.RingGeometry. It is contructed 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.

Properties of VglGeometry are also available as mixin.

props

• inner-radius float (optional) default: 0.5

  Inner radius of the ring.

• outer-radius float (optional) default: 1

  Outer radius of the ring.

• theta-segments int (optional) default: 8

  Number of segments along to the tangential direction.

• phi-segments int (optional) default: 1

  Number of segments along to the radial direction.

• theta-start float (optional)

  The starting angle.

• theta-length float (optional) default: [object Object]

  The central angle.

computed properties

• inst

  dependencies: innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength

Example

<template>
  <div>
    <vgl-renderer
      antialias
      camera="camera"
      scene="scene"
    >
      <vgl-scene name="scene">
        <vgl-ring-geometry
          name="ring"
          :inner-radius="innerRadius"
          :outer-radius="outerRadius"
        />
        <vgl-mesh-standard-material name="std" />
        <vgl-mesh
          geometry="ring"
          material="std"
        />
        <vgl-ambient-light color="#ffeecc" />
        <vgl-directional-light position="0 1 2" />
      </vgl-scene>
      <vgl-perspective-camera
        orbit-position="250 1 0.5"
        name="camera"
      />
    </vgl-renderer>

    <aside class="control-panel">
      <label>Inner radius<input
        v-model="innerRadius"
        type="range"
      ></label>
      <label>Outer radius<input
        v-model="outerRadius"
        type="range"
      ></label>
    </aside>
  </div>
</template>

<script>
export default {
  data: () => ({
    innerRadius: 25,
    outerRadius: 50,
  }),
};
</script>