Function decompressPositions3WithAABB3

  • decompressPositions3WithAABB3(
        positions: FloatArrayParam,
        aabb: FloatArrayParam,
        dest?: FloatArrayParam,
    ): FloatArrayParam

  • Decompresses a flat array of quantized 3D positions using an axis-aligned bounding box (AABB) to scale and offset.

    This function restores the original 3D positions by scaling and offsetting the quantized values using the provided AABB. It calculates the scale and offset for each axis based on the AABB and the maximum quantization value (65535).

    Parameters

    • positions: FloatArrayParam

      The quantized positions array to be decompressed. Each position is a 3D point (x, y, z).

    • aabb: FloatArrayParam

      The AABB used for decompressing. The AABB contains 6 values: [xmin, ymin, zmin, xmax, ymax, zmax].

    • Optionaldest: FloatArrayParam = ...

      The destination array to store the decompressed positions.

    Returns FloatArrayParam

    • The decompressed positions array.

    Example

    const quantizedPositions = new Uint16Array([1000, 2000, 3000, 4000, 5000, 6000]);
    const aabb = new Float32Array([0, 0, 0, 10000, 10000, 10000]);
    const decompressed = decompressPositions3WithAABB3(quantizedPositions, aabb);
    console.log(decompressed); // [0.015, 0.03, 0.045, 0.06, 0.075, 0.09]

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