threejs-math/types/interpolants/DiscreteInterpolant.js

Stand-alone version of three.js math with TypeScript support

import { Interpolant } from '../Interpolant.js';
/**
 * Interpolant that evaluates to the sample value at the position preceding
 * the parameter.
 *
 * @examples
 * ```
 * const interpolant = new DiscreteInterpolant(
 * new Float32Array( 2 ),
 * new Float32Array( 2 ),
 * 1,
 * new Float32Array( 1 )
 * );
 *
 * interpolant.evaluate( 0.5 );
 * ```
 */
export class DiscreteInterpolant extends Interpolant {
    /**
     * Create a new instance.
     * @param parameterPositions - array of positions
     * @param sampleValues - array of samples
     * @param sampleSize - number of samples
     * @param resultBuffer - buffer to store the interpolation results.
     */
    // eslint-disable-next-line @typescript-eslint/no-useless-constructor
    constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
        super(parameterPositions, sampleValues, sampleSize, resultBuffer);
    }
    interpolate_(i1) {
        return this.copySampleValue_(i1 - 1);
    }
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    intervalChanged_(i1, t0, t1) {
        // do nothing
    }
}
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