Here is an example of a QPolarChart with both radial and angular axis.

I implemented the Arrow Class in the example here and it works well, I am now trying to replace the line to be a polyline where the line only moves in the x & y directions.

In the below code the frameheight is 10000 and the width is 3000. This image is generated in half second therefore i need to process and convert this much of data display in my Qt gui graphics view.