splat-transform API Reference - v1.10.2
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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

    clone permuteRowsInPlace

    Methods

    • Creates a copy of this DataTable, optionally selecting specific rows and/or columns.

      Parameters

      • Optionaloptions: { columns?: string[]; rows?: Uint32Array<ArrayBufferLike> | number[] }

        Optional selection criteria.

        • Optionalcolumns?: string[]

          Column names to include. If omitted, all columns are copied.

        • Optionalrows?: Uint32Array<ArrayBufferLike> | number[]

          Row indices to include (and their order). If omitted, all rows are copied.

      Returns DataTable

      A new DataTable with copied data.

      const full = table.clone();
      const subset = table.clone({ rows: [0, 2, 4], columns: ['x', 'y', 'z'] });

    • 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 clone({ rows }) 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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