zeni/go-chart
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This commit is contained in:
Will Charczuk 2016-07-10 01:11:47 -07:00
parent 7bb82ae691
commit e9a36274ac
23 changed files with 551 additions and 445 deletions
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46
continuous_series.go
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@ -1,16 +1,11 @@
package chart
import (
"fmt"
"github.com/blendlabs/go-util"
)
// ContinuousSeries represents a line on a chart.
type ContinuousSeries struct {
Name string
Style Style
FinalValueLabel Style
Name string
Style Style
YAxis YAxisType
XValues []float64
YValues []float64
@ -36,35 +31,8 @@ func (cs ContinuousSeries) GetValue(index int) (float64, float64) {
return cs.XValues[index], cs.YValues[index]
}
// GetXFormatter returns the xs value formatter.
func (cs ContinuousSeries) GetXFormatter() Formatter {
return func(v interface{}) string {
if typed, isTyped := v.(float64); isTyped {
return fmt.Sprintf("%0.2f", typed)
}
return util.StringEmpty
}
}
// GetYFormatter returns the y value formatter.
func (cs ContinuousSeries) GetYFormatter() Formatter {
return cs.GetXFormatter()
}
// Render renders the series.
func (cs ContinuousSeries) Render(c *Chart, r Renderer, canvasBox Box, xrange, yrange Range) error {
DrawLineSeries(c, r, canvasBox, xrange, yrange, cs)
if cs.FinalValueLabel.Show {
asw := 0
if c.Axes.Show {
asw = int(c.Axes.GetStrokeWidth(DefaultAxisLineWidth))
}
_, lv := cs.GetValue(cs.Len() - 1)
ll := yrange.Format(lv)
lx := canvasBox.Right + asw
ly := yrange.Translate(lv) + canvasBox.Top
DrawAnnotation(c, r, canvasBox, xrange, yrange, cs.FinalValueLabel, lx, ly, ll)
}
func (cs ContinuousSeries) Render(r Renderer, canvasBox Box, xrange, yrange Range, defaults Style) {
style := cs.Style.WithDefaultsFrom(defaults)
DrawLineSeries(r, canvasBox, xrange, yrange, style, cs)
}