N-D Lookup tables for Modelica
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This document introduces a new approach using HDF5 for storing N-dimensional lookup table data in a structured format called the Scientific Data Format (SDF). SDF aims to address problems with current data storage solutions by supporting N-dimensional data with dimension scales and metadata, as well as physical quantities and units. It uses an open source HDF5 backend and provides native tool support and interoperability between tools like Modelica, Python, MATLAB, and Simulink. The document demonstrates SDF usage through an N-dimensional table block in Modelica and functions for reading and writing SDF files.
N-D Lookup tables for Modelica
- 1. A new approach with HDF5 N-D LOOKUP TABLES FOR MODELICA
- 2. OVERVIEW • (table) data formats today • the “Scientific Data Format” • Demo: Modelica blocks & functions • tooling
- 4. Problems with the current solutions • Different file formats conversions • Proprietary • Not suitable for N-D data • No support for meta data • No support for physical quantities & units • Not structurable STATUS QUO
- 5. SCIENTIFIC DATA FORMAT .sdf SDF Editor Python MATLABDymola Simulink • support for N-D data & dimension scales • physical quantities & units • custom metadata • structurable • open source • native tool support
- 6. SCIENTIFIC DATA FORMAT emachine.sdf tau n u P_loss QUANTITY=Power UNIT=W … AUTHOR=John Doe Attribute Dataset File Structure
- 7. SCIENTIFIC DATA FORMAT emachine.sdf tau n u P_v Data Dimension Scales <61x26x7> double <61> double <26> double Dimension Scale Link <7> double
- 8. ARCHITECTURE HDF5 C-API HDF5 Table Modelica Functions Modelica NDTable Python SDF for Python SDF Editor Java / EMF Simulink NDTable MATLAB SDF for MATLAB
- 10. Demo!
- 13. READ / WRITE FUNCTIONS
- 14. SDF EDITOR
- 15. SCRIPTING