Struct VtkWriter 

pub struct VtkWriter;

Stateless collection of higher-level VTK writing helpers.

Implementations

impl VtkWriter

pub fn write_unstructured_vector_field( path: &str, points: &[[f64; 3]], cells: &[Vec<usize>], cell_types: &[VtkCellTypeW], field_name: &str, vectors: &[[f64; 3]], ) -> Result<()>

Write an unstructured mesh with an attached vector field to a VTU file.

Arguments

• path – output file path (.vtu)
• points – node coordinates
• cells – connectivity (each element is a list of 0-based point indices)
• cell_types – VTK cell type for each cell (parallel to cells)
• field_name – name of the vector field (e.g. "velocity")
• vectors – one [vx, vy, vz] per node (point data)

pub fn write_streamlines( path: &str, streamlines: &[Vec<[f64; 3]>], ) -> Result<()>

Write a set of streamlines as VTK PolyData in legacy ASCII format.

Each streamline is a polyline: a sequence of 3-D points. The output is a valid legacy VTK file containing one POLYDATA dataset.

Arguments

• path – output file path (.vtk)
• streamlines – each inner Vec is one polyline (≥ 2 points each)

pub fn write_rectilinear_grid( path: &str, x_coords: &[f64], y_coords: &[f64], z_coords: &[f64], field_name: Option<&str>, scalars: &[f64], ) -> Result<()>

Write a rectilinear grid to a legacy VTK ASCII file.

A rectilinear grid is defined by three 1-D coordinate arrays x_coords, y_coords, z_coords. The grid dimensions are nx × ny × nz where nx = x_coords.len() etc.

Optionally attach a scalar point-data field scalars of length nx * ny * nz (pass an empty slice to omit).