Andreas Trantidis

I developed a small app using the Flight framework by Twitter and jQuery that utilizes the unofficial Hacker News JSON Processing (JSON-P) API and displays the latest posts and comments. To view it, a user has to open the index.html file in a browser.

Mapflash WebGIS platform is a custom WebGIS platform developed in 2004 and maintained and updated up to the middle of 2007. The platform was developed using a number of open source GIS libraries and was compatible with any spatial vector and raster format, providing a gridded interactive map. The platform was mainly competing with products from UMN MapServer, ESRI, and Autodesk. Its reach features and capabilities list combined with its low price made it popular in Greece, as it was used in more than 5 major projects by 5 big municipalities and prefectures across the country.
The technologies used were Python, Java, MySQL spatial, GDAL/OGR, PROJ.4, EPSG, and ActionScript 3.

CongressValue is a tool for monitoring conference participation. Combined with a bar-code or RFID scanner for scanning participants' ID tags, CongressValue records the time of entrance and exit of each participant. The software automatically calculates the duration between two subsequent scans and stores information about the total amount of time the participant has spent in various conference rooms. It additionally maintains a log of all scans, presents the data in real-time, and stores it for subsequent analysis.
Technologies used include Node.js, MongoDB, offline HTML5 API, WebSockets, and Backbone.js.

MedSchool is a webinar / educational platform providing a complete series of classes to doctors of various specialities.
Each class consists of a number of video courses, tests, and a final exam that each participant should take in order to gain the graduation certificate. The system embeds an online payment system through PayPal, and uses an ad banner management system, a test and question management system, and more. It is fully responsive and mobile friendly.
Technologies used: Node.js, MongoDB, Twitter Flight, Bootstrap

j-congress is a custom Joomla conference management component. It was developed on behalf of the Hellenic Cardiological Society and has been serving its conference needs since 2008.
The system supports a number of access levels:
- Super Admin
- Conference Admin
- Secretariat
- Tourist Agent
- Abstracts Judge
- Participant
- Organization
- Visitor
and provides a number of capabilities including:
- Fully customizable conference creation
- Online registration
- Online abstract submission and evaluation
- Accommodation and reservations management
- Online payments
- Data presentation and manipulation (program, venue etc)

Technologies used: PHP, JavaScript, MySQL

JustKnock™ is a WebRTC video collaboration service. We designed JustKnock to serve as a mobile professional’s virtual office. Functioning just like a physical office, when someone “Knocks”, users can see who is behind the door and decide whether to speak with them right away or park them in a (virtual) waiting room. With our Defined Availability feature, only select people will know that users are “available”.
Here are just a few of its amazing features:
-100% browser-based real-time video communications (compatible with Chrome or FireFox at the moment)
-No downloads
-Crystal clear, echo free audio combined with HD video
-Instant on/off
-Virtual Waiting Room: See who is waiting to video chat with you
-Defined Availability lets you decide in real-time who gets to see if you are online. For example: Family and co-workers can Knock on your door, but the general public sees you as offline.
-Integrated whiteboard allows you to share PowerPoints and other documents
-Extremely user friendly

The Posters Project provides an alternative way of presenting posters on scientific conferences in a digital format.
The project consists of two distinct parts:
- The poster management system
- The poster presentation system
The poster management system is a web based application by which the administrator can add, edit, and manage all the posters of a conference. Each poster may consist of more than one slide and supports video. Each poster belongs to one or more categories supported by the conference.
Besides the poster management tools provided by the application's UI, the Posters Project is designed and developed to (both) provide and support web services. Any web based conference management system can be "chained" with the Posters Project by a two-legs authorization mechanism.
The second part of of the project is the poster presentation system. All the approved posters are presented and made available on the conference through a number of different interfaces that the Posters Project supports:.
- Large (main) monitors iterating through the posters
- Touch screen optimized UI that provides full search capabilities and control of the main monitors
- Mobile-optimized web page with full search capabilities
- PC-optimized interface available to the users through the conference's network

MotorCortex is an open source project/library that makes web animations easy, providing the ability to describe them through CSS-like syntax and stop messing animation logic with the actual javascript code.