tecio.szl

Read and write Tecplot SZL (.szplt) files.

Tecplot SZL is a subzone-loadable binary format. Data is stored in compressed subzones so Tecplot 360 can load only the portions of the dataset it needs, making it the preferred format for large files.

Key behaviours:

• Variable data is read lazily from disk on first access via zone.

• Variable sharing across zones (var_sharing) avoids duplicating grid coordinates for time-series data, significantly reducing file size for transient datasets.

• The writer uses a lazy-open strategy: the file is not created on disk until the first write_ijk_zone() or write_fe_zone() call.

• Auxiliary data is buffered and flushed automatically before the first zone is written.

• Multiple SZL files can be open simultaneously since each read/write handle is independent.

Example

>>> with tecio.open("out.szplt", "w") as w:
...     w.write_ijk_zone(
...         data=[x, y, p],
...         variables=["x", "y", "pressure"],
...         strand_id=1,
...         solution_time=t,
...     )

Classes

Read	Reader for Tecplot .szplt files.
Write	Write Tecplot SZL (.szplt) files with a lazy-open file handle.