OneUnitSimV

WPF desktop application for visualizing a simple flight trajectory simulation in 3D. The project demonstrates C# desktop development, MVVM, dependency injection, numerical calculations, asynchronous execution, and JSON persistence.

Tech Stack

• C# and WPF
• .NET 6 Windows
• MVVM with CommunityToolkit.Mvvm
• HelixToolkit.Wpf for 3D visualization
• Microsoft.Extensions.DependencyInjection
• System.Text.Json

Features

• 3D trajectory visualization in a WPF window
• Start/stop simulation controls
• RK4-based numerical integration
• Basic flight dynamics model with position, velocity, gamma, and psi parameters
• MVVM structure with commands and observable properties
• Dependency injection for simulation and storage services
• Save and load simulation parameters and trajectory data as JSON
• Separate settings window for simulation parameters

Project Structure

OneUnitSimV/
  Models/       Simulation parameters, state, vector, and flight dynamics
  Services/     Simulation engine and JSON storage abstractions
  ViewModels/   Main and settings view models
  Views/        WPF windows and XAML UI

Architecture

The application keeps UI logic in view models and moves calculation/storage logic into services:

WPF View -> ViewModel Command -> ISimulationEngine / IStorageService -> Models

Main services:

• ISimulationEngine / RungeKuttaEngine - calculates trajectory points asynchronously
• IStorageService / JsonStorageService - saves and loads trajectory data

Running Locally

dotnet restore
dotnet build OneUnitSimV.sln
dotnet run --project OneUnitSimV

This is a Windows desktop project and requires a Windows environment with WPF support.

What This Project Demonstrates

• C# desktop development beyond CRUD applications
• MVVM structure and command binding
• Dependency injection in a WPF application
• Async simulation flow with cancellation
• Numerical methods and 3D visualization