snapshot.

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

View file

@ -1,17 +1,13 @@
package chart
import (
"fmt"
"time"
"github.com/blendlabs/go-util"
)
import "time"
// TimeSeries is a line on a chart.
type TimeSeries struct {
Name string
Style Style
FinalValueLabel Style
Name string
Style Style
YAxis YAxisType
XValues []time.Time
YValues []float64
@ -32,6 +28,11 @@ func (ts TimeSeries) Len() int {
return len(ts.XValues)
}
// GetYAxis returns which YAxis the series draws on.
func (ts TimeSeries) GetYAxis() YAxisType {
return ts.YAxis
}
// GetValue gets a value at a given index.
func (ts TimeSeries) GetValue(index int) (x float64, y float64) {
x = float64(ts.XValues[index].Unix())
@ -39,28 +40,8 @@ func (ts TimeSeries) GetValue(index int) (x float64, y float64) {
return
}
// GetXFormatter returns the x value formatter.
func (ts TimeSeries) GetXFormatter() Formatter {
return func(v interface{}) string {
if typed, isTyped := v.(time.Time); isTyped {
return typed.Format(DefaultDateFormat)
}
if typed, isTyped := v.(int64); isTyped {
return time.Unix(typed, 0).Format(DefaultDateFormat)
}
if typed, isTyped := v.(float64); isTyped {
return time.Unix(int64(typed), 0).Format(DefaultDateFormat)
}
return util.StringEmpty
}
}
// GetYFormatter returns the y value formatter.
func (ts TimeSeries) GetYFormatter() Formatter {
return func(v interface{}) string {
if typed, isTyped := v.(float64); isTyped {
return fmt.Sprintf("%0.2f", typed)
}
return util.StringEmpty
}
// Render renders the series.
func (ts TimeSeries) Render(r Renderer, canvasBox Box, xrange, yrange Range, defaults Style) {
style := ts.Style.WithDefaultsFrom(defaults)
DrawLineSeries(r, canvasBox, xrange, yrange, style, ts)
}