https://github.com/ntnu-ihb/fmi4j

FMI4j is a software package for dealing with Functional Mockup Units (FMUs) on the JVM
https://github.com/ntnu-ihb/fmi4j

co-simulation fmi fmi-standard fmu java kotlin model-exchange

Last synced: about 1 month ago
JSON representation

FMI4j is a software package for dealing with Functional Mockup Units (FMUs) on the JVM

• Host: GitHub
• URL: https://github.com/ntnu-ihb/fmi4j
• Owner: NTNU-IHB
• License: mit
• Created: 2017-11-24T14:07:34.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2023-01-04T15:56:55.000Z (almost 2 years ago)
• Last Synced: 2024-11-13T10:37:44.870Z (about 1 month ago)
• Topics: co-simulation, fmi, fmi-standard, fmu, java, kotlin, model-exchange
• Language: Java
• Homepage:
• Size: 59.2 MB
• Stars: 33
• Watchers: 4
• Forks: 17
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# FMI4j

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

[![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/NTNU-IHB/FMI4j/issues)

[![CI](https://github.com/NTNU-IHB/FMI4j/workflows/Build/badge.svg)](https://github.com/NTNU-IHB/FMI4j/actions)

[![Gitter](https://badges.gitter.im/NTNU-IHB/FMI4j.svg)](https://gitter.im/NTNU-IHB/FMI4j?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)

FMI4j is a software package for dealing with Functional Mock-up Units (FMUs) on the Java Virtual Machine (JVM), written in [Kotlin](https://kotlinlang.org/). 

FMI4j supports import of both [FMI](http://fmi-standard.org/) 1.0 and 2.0 for **Co-simulation**. For  **Model Exchange** version 2.0 is supported. 


Compared to other FMI libraries targeting the JVM, FMI4j is **considerably faster** due to the fact that we use JNI instead of JNA. 

Considering FMI-import, a significant speedup (2-5x) compared to other open-source FMI implementations for the JVM should be expected. 

Maven artifacts are available through [Central](https://search.maven.org/search?q=g:info.laht.fmi4j)

***

###  FMI import

```java

class Demo {

    

    void main(String[] args) {

        

        Fmu fmu = Fmu.from(new File("path/to/fmu.fmu")); //URLs are also supported

        FmuSlave slave = fmu.asCoSimulationFmu().newInstance();

        slave.simpleSetup();

        

        double t = 0;

        double stop = 10;

        double stepSize = 1.0/100;

        while(t <= stop) {

            if (!slave.doStep(t, stepSize)) {

                break;

            }

            t += stepSize;

        }

        slave.terminate(); //or close, try with resources is also supported

        fmu.close();

        

    }

    

}

```

Would you rather build FMUs using a JVM language? Check out [FMU4j](https://github.com/markaren/FMU4j)! 


Or maybe build FMUs using Python? Check out [PythonFMU](https://github.com/NTNU-IHB/PythonFMU)! 


Or would you rather simulate FMUs using C++? Check out [FMI4cpp](https://github.com/NTNU-IHB/FMI4cpp)! 


Need to distribute your FMUs? [FMU-proxy](https://github.com/NTNU-IHB/FMU-proxy) to the rescue! 


Need a complete co-simulation framework with SSP support? Check out [Vico](https://github.com/NTNU-IHB/Vico)