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cffview

CFF is an abbreviation for Ansys Common Fluids Format.

A command-line tool for viewing Ansys Fluent .cas.h5 / .msh.h5 / .dat.h5 files without opening Fluent.

  • Read solver settings, materials, boundary conditions, discretisation schemes, and more directly from the HDF5 file.
  • Browse the parsed settings in an interactive terminal UI (--tui).
  • Visualise mesh or data with PyVista.

Installation

PyPI

pip install cffview

From source

git clone https://github.com/aiwaonly/cffview.git
cd cffview
pip install .

Usage

cffview <file> [options]

Options

Option Description
--version Print the Fluent version of file
--extract Dump raw Scheme settings to general.scm / boundary.scm / cortex.scm
--plotmesh Visualise the mesh interactively with PyVista
--plotdata Visualise the data interactively with PyVista (may not work, depending on vtkFLUENTCFFReader)
-t, --tui Browse the parsed settings in a terminal UI instead of printing them
--solver Solver type, time, dimension, precision, turbulence model, energy, radiation, gravity, ...
--mat [TYPE ...], --materials Material properties grouped by material type (fluid / solid); filters match a material type or a material name (e.g. --mat fluid, --mat air)
--bd [TYPE ...], --boundary Boundary condition settings; filters match a boundary type (vi for velocity-inlet, whole word for single-word types) or a zone name (e.g. --bd vi wall po, --bd shadow)
--interfaces Mesh interfaces settings
--ne, --named-expressions Named expressions
--cff, --custom-field-functions Custom field functions
--units [KEYWORD ...] Show changed units (filtered by one or more keywords; empty means default SI units)
--solution Solution methods and controls
--rd, --report-definitions Report definitions
--residuals Residual settings
--monitorsets Monitor sets
--plotsets Plot sets
--convergencesets Convergence sets
--cell, --cell-registers Cell registers settings
--iter Iteration / time-step settings
--surfaces Surfaces settings
--mesh Graphics mesh settings
--contours Graphics contours settings
--vectors Graphics vectors settings
--pathlines Graphics pathlines settings
--xy-plot Graphics xy-plot settings
--scene Graphics scene settings
--parameters Input / output parameters
--save Save the output to file_name.json (if file_name not specified, it is the same as input file)
--plot [out|xy|dat] Plot a data file; without TYPE, infer from the file extension

Multiple flags can be combined freely. Case settings flags (--solver, --mat, etc.) apply to .cas.h5 files only.

Examples

# Show all settings and save to JSON
cffview case.cas.h5 --save

# Show solver configuration and boundary conditions
cffview case.cas.h5 --solver --bd

# Visualise the mesh
cffview case.cas.h5 --plotmesh
cffview mesh.msh.h5

# Visualise the data
cffview case.cas.h5 --plotdata

# Check the Fluent version of file
cffview case.cas.h5 --version

# Extract raw Scheme strings for manual inspection
cffview case.cas.h5 --extract

TUI

cffview case.cas.h5 --tui

The parsed settings are shown in a terminal UI instead of being printed: the case structure as a tree on the left, the selected entry as 4-space JSON on the right. Keys are coloured by nesting level, and the detail panel's border title shows the path and key count of the current entry.

Key Action
↑ / ↓ Move in the tree
enter Select the entry: expands / collapses it when it has children, shows it on the right when it is a leaf
space Expand or collapse the selected entry
shift+← / shift+→ Go to the parent / first child
shift+↑ / shift+↓ Previous / next sibling
shift+space Expand or collapse all entries
pageup / pagedown, home / end Scroll the focused pane
d Toggle the dark / light theme
q Quit

Clicking an entry selects it, and toggles it as well when it has children; either pane can also be scrolled with the mouse wheel.

Demo

https://github.com/user-attachments/assets/7f97b559-87fa-4822-be9f-4e82b8c5cab6

License

BSD-3-Clause

Metadata

Release files for cffview 0.6.0

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Source distribution for cffview 0.6.0
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