Fine Dust Data Visualization

Application to visualize fine dust data on a world map and offer graphs to analyze the data. Group project in the university.

A students guide to QML

Since some of you guys havent developed with Qt and QML we will collect examples and pitfalls of Qt/QML in this Readme.

Don't panic!

Type
Rectangle(https://doc.qt.io/archives/qt-5.10/qml-qtquick-rectangle.html)
Text (https://doc.qt.io/archives/qt-5.10/qml-qtquick-text.html)
Image (https://doc.qt.io/archives/qt-5.10/qml-qtquick-image.html)
AnimatedSprite](https://doc.qt.io/archives/qt-5.10/qml-qtquick-animatedsprite.html)
Map (https://doc.qt.io/qt-5/qml-qtlocation-map.html)

A few non-obvious things about QML:

• The Z-Index (i.e. how visible objects are stacked and how they cover each other) is determined by the order of the elements in the QML file. (Top in the file is furthest away / at the bottom of the stack.)
  Update: I just found out that the z property also exists.
• Anchors can be your friend when positioning elements relative to each other. anchors.centerIn and anchors.fill are nice shortcuts.
• QML does not have variables but properties. It is very easy and common to create bound properties, e.g. width: Math.max(somerec.width, otherrec.width) This means that changes are automatically propagated to all dependent properties. This is very convenient most of the times but can cause headaches in some cases.
• Child elements coordinate system has its origin at the top left corner of the parent.
• You might stumble upon childrenRect but I would not recommend using it, since it does not shrink in size, e.g. when the aspect ratio or user editable text changes.