sim-plot-ode

A simple Java project for Dynamic Systems Modelling, simulation, and plotting of Ordinary Differential Equation (ODE) systems using custom solvers and JavaFX visualization.

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✨ Features

• Define custom ODE systems easily
• Simulate them using multiple solvers, including Euler and RK4 (Runge–Kutta 4th Order)
• Visualize time-series trajectories using JavaFX GUI application
• Includes built-in systems like:
  • Solar System Model (N-Body Simulation)
  • FitzHugh-Nagumo neuron model
  • SIR epidemiological model

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📦 Artifact Info

Key	Value
Group ID	io.github.rajveer
Artifact ID	sim-plot-ode
Version	1.0.0

Note: Not published on Maven Central — clone and build locally.

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🚀 Getting Started

🧰 Prerequisites

• Java 22 (or compatible with your JavaFX version)
• Maven installed (mvn -v to check)
• JavaFX SDK is automatically handled via Maven dependencies

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🔧 Build and Run

Clone the repository and run the JavaFX application:

git clone https://github.com/your-username/sim-plot-ode.git
cd sim-plot-ode
mvn clean javafx:run

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📈 Example Output

Lotka-Volterra Simulation

Solar System Model

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🧪 Getting Started with the GUI

You can simulate and visualize your own ODE systems directly in the built-in JavaFX GUI. Here's a step-by-step example using the Lotka–Volterra predator-prey model:

We want to solve the following ODE system:

✅ Step-by-Step Instructions

🔹 Step 1: Add the First Equation (Prey)

• Enter the expression: 1.5*y0 - y0*y1
• Set y₀ to 10
• Click ➕ Add

🔹 Step 2: Add the Second Equation (Predator)

• Enter the expression: y0*y1 - 3.0*y1
• Set y₀ to 5
• Click ➕ Add

🔹 Step 3: Set Time Parameters

Field	Value
t₀	0
dt	0.01
tEnd	20

🔹 Step 4: Select Solver

• Choose RK4 Solver from the dropdown

🔹 Step 5: Solve

• Click ✅ Solve

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GUI