Last update: July 2026
IDAT, the ISM Data Analysis Toolbox, provides a suite of tools for
analyzing and visualizing data produced by the codes of the ISM Services Platform.
It can be used both with data generated by running the codes locally and with data downloaded from ISMDB.
IDAT allows users to extract selected computed quantities into text files and to generate plots showing the spatial profiles of the computed data. Version 2.3.2 is compatible with a wider range of operating systems and Python versions.
IDAT requires ismpy to run (see the documentation).
Once ismpy is installed, launch the IDAT graphical interface with:
./idat dataanalysis.
Note: IDAT can also be used from the command line to efficiently process large numbers of models.
Last update: July 2026
The Chemistry Analyser is a tool for performing detailed analyses of chemical reaction pathways. Through an intuitive graphical user interface, it provides schematic visualizations of the formation and destruction pathways of any chemical species and displays all the information required to analyse a given chemical state.
The Chemistry Analyser is compatible with all codes that produce output files in the HDF5 format used by this platform.
The Chemistry Analyser requires ismpy to run (see the documentation).
Once ismpy is installed, launch the Chemistry Analyser graphical interface as follows:
1 – Run sh chemanalyser.sh
2 – Open start.html in your web browser.
Date : November 2025
IDAT 2.2.8 is compatible with more OS and python versions than previous IDAT versions.
Date : December 2025
The Chemistry Analyzer version 2.0.5 supports Python 3.12 when used with the ismpy environment provided with IDAT.
This new version of the Chemistry Analyzer allows visualization of formation and destruction routes throughout the entire cloud.
Date : September 20th 2024
IDAT 2.2.5 is compatible with more OS and python versions than IDAT 2.1.4. In particular, it should run on systems using
python 3.12 thanks to its virtual environment ismpy.
Date : September 20th 2024
The Chemistry Analyzer version 2.0.3 supports Python 3.12 when used with the ismpy environment provided with IDAT.
This new version of the Chemistry Analyzer allows visualization of formation and destruction routes throughout the entire cloud.
Date : August 18th 2021
IDAT version 2.1.4 was released in August 2021. This version was the first version that should be compatible with any
versions of the Meudon PDR code and Paris-Durham shock code. In particular, this is the version that was provided with
the Meudon PDR code 1.5.4.
Date : May 30th 2020
Old version of the chemistry analyser released in 2020. This version was the first version that should be compatible with any
versions of the Meudon PDR code and Paris-Durham shock code. In particular, this is the version that was provided with
the Meudon PDR code 1.5.4.
Date : February 15th 2021
IDAT version 1.1.1 compatible with PDR code 1.5.4 before August 2021 and the Paris-Durham Shock code.
codes of the ISM Services Platform.
IDAT allows to extract some desired computed quantities into text files and to produce graphs to visualize the spatial profile of the data
Last update: June 25th 2017
The Extractor is a tool to read the HDF5 output files produced by PDR 1.5.2, PDRLight and
the shock code. The Extractor allows to navigate in the quantities computed by these codes, to
select some of them and extract them in ASCII or VO-Table format. Results can be sent directly
to VO plotting softwares.
Note: The Extractor can be used either with a graphical interface or in script mode. When the same quantities have to be extracted for a large number of models, it is recommended to use it in script mode.
The PDRAnalyser tool is a java program used to read the outputs of the PDR code versions 1.4.x that are in XML and FITS formats. Versions 1.4.x of the Meudon PDR code are no longer maintained as well as the PDRAnalyser tool. We recommend to use more recent versions of the PDR code with the Extractor tool.
