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updates + tests

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This commit is contained in:
Will Charczuk 2018-09-07 12:52:30 -07:00
parent 1144b80a46
commit 1555902fc4
13 changed files with 207 additions and 2 deletions
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19
time_series.go
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@ -7,6 +7,14 @@ import (
util "github.com/wcharczuk/go-chart/util"
)
// Interface Assertions.
var (
_ Series = (*TimeSeries)(nil)
_ FirstValuesProvider = (*TimeSeries)(nil)
_ LastValuesProvider = (*TimeSeries)(nil)
_ ValueFormatterProvider = (*TimeSeries)(nil)
)
// TimeSeries is a line on a chart.
type TimeSeries struct {
Name string
@ -33,14 +41,21 @@ func (ts TimeSeries) Len() int {
return len(ts.XValues)
}
// GetValues gets a value at a given index.
// GetValues gets x, y values at a given index.
func (ts TimeSeries) GetValues(index int) (x, y float64) {
x = util.Time.ToFloat64(ts.XValues[index])
y = ts.YValues[index]
return
}
// GetLastValues gets the last value.
// GetFirstValues gets the first values.
func (ts TimeSeries) GetFirstValues() (x, y float64) {
x = util.Time.ToFloat64(ts.XValues[0])
y = ts.YValues[0]
return
}
// GetLastValues gets the last values.
func (ts TimeSeries) GetLastValues() (x, y float64) {
x = util.Time.ToFloat64(ts.XValues[len(ts.XValues)-1])
y = ts.YValues[len(ts.YValues)-1]