pyvista_wasm.PolyDataReader

class pyvista_wasm.PolyDataReader(path: str | Path)

Bases: object

Reader for legacy VTK PolyData files (.vtk).

Reads a legacy VTK ASCII file and produces a Mesh that delegates parsing to VTK.wasm’s vtkPolyDataReader at render time. Python extracts only the point coordinates so that camera framing and bounding-sphere queries work before rendering.

Parameters:

path (str or Path) – Path to the .vtk file.

Examples

Try it with JupyterLite!

>>> import pyvista_wasm as pv
>>> reader = pv.PolyDataReader("sphere.vtk")
>>> mesh = reader.read()

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__init__(path: str | Path) → None

Initialize the reader with a file path.

Methods

__init__(path)	Initialize the reader with a file path.
read()	Read the VTK file and return a Mesh.

Attributes

path	Return the file path.

property path: Path

Return the file path.

Returns:

The path to the VTK file.

Return type:

Path

read() → _PolyDataMesh

Read the VTK file and return a Mesh.

The full file content is stored so that VTK.wasm can parse it at render time. Point coordinates are extracted on the Python side for bounding-sphere and camera-framing calculations.

Returns:

A mesh backed by the VTK file content.

Return type:

Mesh

Raises:

ValueError – If the file format is invalid or unsupported.