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Sparkline

Sizing

Section titled “Sizing”

Sparkline fills whatever space it is given. Use a tview.Flex fixed-width cell to constrain it — e.g., a 20-cell-wide column inside a MetricCard.

Sparkline preview

Sparkline renders a compact trend line with no axes or labels. It fills its allocated space; constrain it with a fixed-width flex cell.

Constructor func NewSparkline() *Sparkline

Usage

spark := components.NewSparkline().
  SetValues([]float64{12, 18, 15, 22, 19, 25, 30}).
  SetLabel("req/s")


fmt.Println(spark != nil)

Methods

Method Signature Description
AddValue func (s *Sparkline) AddValue(value float64, maxLen int) *Sparkline AddValue appends a value and maintains max length.
GetFieldHeight func (s *Sparkline) GetFieldHeight() int GetFieldHeight returns the preferred height.
SetLabel func (s *Sparkline) SetLabel(label string) *Sparkline SetLabel sets the label.
SetMaxValue func (s *Sparkline) SetMaxValue(max float64) *Sparkline SetMaxValue sets the maximum value for scaling.
SetValues func (s *Sparkline) SetValues(values []float64) *Sparkline SetValues sets the data points.