Limits Opacity
This controls the opacity/transparency of the range area chart used to display the limit value, using fields Low and High as thresholds.
Chart interpolation
The main sparkline chart and the limit chart are each interpolated :
- Line interpolate : interpolation method used for the main sparkline chart
- Limits interpolate : interpolation method used for the limits range chart
Available interpolation methods are :
basis
A cubic basis spline
The result is a smooth curve which doesn’t exactly pass through the data points themselves.
linear
A series of interconnected lines.
The result is that of a line chart.
monotone
A cubic spline that preserves monotonicity in y, assuming monotonicity in x.
The result is a smooth curve which goes through all data points and doesn’t overshoot.
step
A step line centered on the data point.
The result is a step line which is constant around the data points.
step-after
A step line starting on the data point.
The result is a step line which is constant after the data points.
step-before
A step line ending on the data point.
The result is a step line which is constant before the data points.
Chart colors
The color of each sparkline chart is picked from an indexed palette defined under Color > Tags.
You can add/remove colors and customize them.
If there is more Tags than colors, the colors are cycled.
Trail
The sparkline charts can be configured to be drawn with a variable line thickness depending on the value.
Check Use Trail and define :
- Trail Size Low : the line thickness when the value is low
- Trail Size High : the line thickness when the value is high
Overlap Lines
This completely changes the display : instead of showing separate sparkline charts side-by-side, they are all superimposed on the same chart.
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