Method getIndices

src/data/DataStore.ts:572–601

()

    }

    getIndices(): ArrayLike<number> {
        let newIndices;

        const indices = this._indices;
        if (indices) {
            const Ctor = indices.constructor as DataArrayLikeConstructor;
            const thisCount = this._count;
            // `new Array(a, b, c)` is different from `new Uint32Array(a, b, c)`.
            if (Ctor === Array) {
                newIndices = new Ctor(thisCount);
                for (let i = 0; i < thisCount; i++) {
                    newIndices[i] = indices[i];
                }
            }
            else {
                newIndices = new (Ctor as DataTypedArrayConstructor)(
                    (indices as DataTypedArray).buffer, 0, thisCount
                );
            }
        }
        else {
            const Ctor = getIndicesCtor(this._rawCount);
            newIndices = new Ctor(this.count());
            for (let i = 0; i < newIndices.length; i++) {
                newIndices[i] = i;
            }
        }

        return newIndices;
    }

    /**
     * [NOTICE]: Performance-sensitive for large data.