This is an example of Vue Chart Logarithmic Spline Area. The type of the seriesGroup is splinerangearea. You can see how to set opacity to the spline area.
Logarithmic Spline Area Range
logarithmic scale with base 2
0
1
2
3
4
5
6
7
from A to B
Value
0.125
0.250
0.500
1.000
2.000
4.000
8.000
16.000
32.000
64.000
128.000
256.000
512.000
1024.000