QTriangulator crashes when using large numbers as coordinates in a ShapePath

Short description:  When large numbers are used as coordinates for a PathLine or a PathPolyLine in a ShapePath the app crashes

Long description: In my application I want to draw a dynamic spectrum with data from a hardware sensor. The returned fft values of the vibration sensor have nearly the whole range of 32 bit unsigned integers. I calculate either a logarithmic scale or draw raw linear data.

The used PathPolyLine should show the single amplitudes as Y where X are the frequencies. The plot should be filled. With mid range values (about 10.000.000) several warnings

Inconsistent polygon. (#3)

are printed. With higher values the app crashed.

With the help of the debugger i figured out the responsible code is in QTriangulator<T>::ComplexToSimple::removeUnwantedEdgesAndConnect()

On my Linux machine this minimal snipped already crashes:

ShapePath {
    strokeColor: "red"
    fillColor: "blue"
//  fillColor: "transparent"

    PathLine { x: 200; y: 200 }
    PathLine { x: 30; y: 100000000 }
    PathLine { x: 10000000; y: 30 }
}

Is the fillColor set to transparent everything works fine.