splat-transform API Reference - v1.6.0
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    Class DataTable

    A table of columnar data representing Gaussian splat properties.

    DataTable is the core data structure for splat data. Each column represents a property (e.g., position, rotation, color) as a typed array, and all columns must have the same number of rows.

    Standard columns include:

    • Position: x, y, z
    • Rotation: rot_0, rot_1, rot_2, rot_3 (quaternion)
    • Scale: scale_0, scale_1, scale_2 (log scale)
    • Color: f_dc_0, f_dc_1, f_dc_2 (spherical harmonics DC)
    • Opacity: opacity (logit)
    • Spherical Harmonics: f_rest_0 through f_rest_44
    const table = new DataTable([
        new Column('x', new Float32Array([0, 1, 2])),
        new Column('y', new Float32Array([0, 0, 0])),
        new Column('z', new Float32Array([0, 0, 0]))
    ]);
    console.log(table.numRows);    // 3
    console.log(table.numColumns); // 3
    Index

    Methods

    permuteRowsInPlace

    Methods

    • Permutes the rows of this DataTable in-place according to the given indices. After calling, row i will contain the data that was previously at row indices[i].

      This is a memory-efficient alternative to permuteRows that modifies the table in-place rather than creating a copy. It reuses ArrayBuffers between columns to minimize memory allocations.

      Parameters

      • indices: Uint32Array<ArrayBufferLike> | number[]

        Array of indices defining the permutation. Must have the same length as the number of rows, and must be a valid permutation (each index 0 to n-1 appears exactly once).

      Returns void

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