Later you changed that such that the minimal distance between 2 points is 5km.
Now I mostly cannot see any point at all because I would have to zoom out.
My wish would be:
- Ensure that always at least one such symbol is visible.
- if the distance between current position and that symbol is greater than 1km, make sure that at least 2 symbols are shown, one before and one after the current position
Side remark: Showing km values 1000km or more does not work very well. If I remember correctly, the first digit is suppressed.