TrafficControl: Adding Trains to the QML Map - Background

The trains will be visualized as a rectangle QML type or possibly a QML polyline with two coordinates.

The color should reflect the type of train that is used. Initially, I'll use the color used in the most common trains in Skåne:

• Pågatågen are using X61 trains that are 74.3 m long and 3.26 m wide, with a top speed of 160 km/h and the engines have a power of 2000 kW. It has a seat capacity of 234 passengers and a weight of 155 tonnes.

https://commons.wikimedia.org/wiki/File:X61.jpg CC by SA 3.0

• Öresundståg are using X31 trains that are 78,9 m long and 2.97 m wide, with a top speed of 180 km/h and the engines has a power of 2300 kW. The seat capacity is 229 and the weight is 156 metric tonnes. The color will be gray.

https://commons.wikimedia.org/wiki/File:X31-Boras.JPG CC by SA 3.0  

It is possible to import a QtQuickItem to a map:

http://doc.qt.io/qt-5/qml-qtlocation-mapquickitem.html

A MapCircle will be used for visualising the train. The initial proposal for visualising the train will be:

• border.width : ceiling(Number of passengers / 100)  
• border.color : Delay status (Green/Yellow/Red)
• center : Location of the train
• color : Color of the train
• opacity : 1
• radius : Indicator of train length. Radius = length / 2

It should be possible to animate that item. Check https://doc.qt.io/qt-5/qtlocation-planespotter-example.html