KADIS HMI SW Development

Overview

• Developed military software that overlays symbols on video and maps to convey situational awareness to users in aircraft.

Key Tasks

• Display live video received via UDP and overlay maps and symbols on the video signal.
• Extract coordinates (latitude and longitude) based on mouse position.
• Created transparent forms to overlay maps and symbols when direct overlay on video data was not possible.
• Implemented methods to calculate actual latitude and longitude based on screen scale and map ratio.

Challenges & Solutions

• Realized the need for creative solutions, like using transparent forms when direct data insertion was not possible.
• Solved mathematical problems, such as calculating real-world coordinates from mouse positions.

Lessons Learned

• Creativity is often required in software development.
• Mathematical approaches can simplify complex problems.

Symbol Implementation

• Implemented various symbols and adaptive symbols that change shape and size based on user input coordinates, complying with US DoD standard MIL-STD-2525D and additional customer symbols.

Challenges & Solutions

• Classified symbols with similar properties and essential attributes using interfaces and parent classes, leveraging inheritance.
• Found and implemented the Bezier curve algorithm for drawing curved symbols based on user input coordinates.

Lessons Learned

• Inheritance helps reduce development volume and makes maintenance easier.
• Many problems can be solved by researching similar cases and algorithms.