Function transform_selected_nodes 

pub fn transform_selected_nodes(
    original_nodes: &[[f64; 3]],
    node_ids: &[usize],
    transform_matrix: &[[f64; 4]; 4],
    origin: &[f64; 3],
) -> Vec<[f64; 3]>

Creates a new set of nodes by applying a transformation to a specified subset.

This function is non-mutating; it returns a new vector with the transformed points.

Arguments

• original_nodes: A slice of the initial node positions.
• node_ids: A slice of indices specifying which nodes to transform.
• transform_matrix: The 4x4 affine transformation matrix to apply.
• origin: The point around which the transformation (e.g., rotation) should occur.

Returns

A new Vec<[f64; 3]> containing the full set of nodes with the specified subset transformed.