TrafficControl: Adding QML Components Dynamically

To be useful, TrafficControl needs to present the stations on an interactive map. The program logic is currently implemented in C++ with some Qt Graphical User interfaces using model-view relations.

The original presentation of the stations and tracks, that were imported from a KML file.

A part of the user interface will be based on QML, that imports a map from OpenStreet maps. QML is a design language where one can add graphical elements easily. I will describe a simple QML demo program later and publish it on my github account. 

The challenge for me has been to add components in QML dynamically from C++, when stations or tracks are found. The placemarks below are from Google Earth/KML.

The yellow placemarks are representing stations.

The stations has been identified and their coordinate has been sent to the QML part of the program,

The stations has been identified by trafficControl and dynamically added as circles

Some of the next steps will be:

• Modifying the different stations individually
• Adding tracks
• Adding trains
• Showing status when hovering the mouse pointer over the items
• Modifying the components regarding their statuses
• Investigating model/view for QML map items