removing example

This commit is contained in:
Will Charczuk 2018-09-10 13:14:46 -07:00
parent a7ff82d63f
commit 872b97b99f
5 changed files with 34 additions and 103 deletions

View file

@ -1,46 +0,0 @@
package main
import (
"net/http"
"github.com/wcharczuk/go-chart"
"github.com/wcharczuk/go-chart/seq"
"github.com/wcharczuk/go-chart/util"
)
func drawChart(res http.ResponseWriter, req *http.Request) {
start := util.Date.Date(2016, 7, 01, util.Date.Eastern())
end := util.Date.Date(2016, 07, 21, util.Date.Eastern())
xv := seq.Time.MarketHours(start, end, util.NYSEOpen(), util.NYSEClose(), util.Date.IsNYSEHoliday)
yv := seq.New(seq.NewRandom().WithLen(len(xv)).WithAverage(200).WithScale(10)).Array()
graph := chart.Chart{
XAxis: chart.XAxis{
Style: chart.StyleShow(),
TickPosition: chart.TickPositionBetweenTicks,
ValueFormatter: chart.TimeHourValueFormatter,
Range: &chart.MarketHoursRange{
MarketOpen: util.NYSEOpen(),
MarketClose: util.NYSEClose(),
HolidayProvider: util.Date.IsNYSEHoliday,
},
},
YAxis: chart.YAxis{
Style: chart.StyleShow(),
},
Series: []chart.Series{
chart.TimeSeries{
XValues: xv,
YValues: yv,
},
},
}
res.Header().Set("Content-Type", "image/png")
graph.Render(chart.PNG, res)
}
func main() {
http.HandleFunc("/", drawChart)
http.ListenAndServe(":8080", nil)
}

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@ -2,7 +2,6 @@ package util
import (
"math"
"time"
)
const (
@ -58,27 +57,6 @@ func (m mathUtil) MinAndMax(values ...float64) (min float64, max float64) {
return
}
// MinAndMaxOfTime returns the min and max of a given set of times
// in one pass.
func (m mathUtil) MinAndMaxOfTime(values ...time.Time) (min time.Time, max time.Time) {
if len(values) == 0 {
return
}
min = values[0]
max = values[0]
for _, v := range values[1:] {
if max.Before(v) {
max = v
}
if min.After(v) {
min = v
}
}
return
}
// GetRoundToForDelta returns a `roundTo` value for a given delta.
func (m mathUtil) GetRoundToForDelta(delta float64) float64 {
startingDeltaBound := math.Pow(10.0, 10.0)

View file

@ -2,7 +2,6 @@ package util
import (
"testing"
"time"
"github.com/blend/go-sdk/assert"
)
@ -31,40 +30,6 @@ func TestMinAndMaxEmpty(t *testing.T) {
assert.Equal(0.0, max)
}
func TestMinAndMaxOfTime(t *testing.T) {
assert := assert.New(t)
values := []time.Time{
time.Now().AddDate(0, 0, -1),
time.Now().AddDate(0, 0, -2),
time.Now().AddDate(0, 0, -3),
time.Now().AddDate(0, 0, -4),
}
min, max := Math.MinAndMaxOfTime(values...)
assert.Equal(values[3], min)
assert.Equal(values[0], max)
}
func TestMinAndMaxOfTimeReversed(t *testing.T) {
assert := assert.New(t)
values := []time.Time{
time.Now().AddDate(0, 0, -4),
time.Now().AddDate(0, 0, -2),
time.Now().AddDate(0, 0, -3),
time.Now().AddDate(0, 0, -1),
}
min, max := Math.MinAndMaxOfTime(values...)
assert.Equal(values[0], min)
assert.Equal(values[3], max)
}
func TestMinAndMaxOfTimeEmpty(t *testing.T) {
assert := assert.New(t)
values := []time.Time{}
min, max := Math.MinAndMaxOfTime(values...)
assert.Equal(time.Time{}, min)
assert.Equal(time.Time{}, max)
}
func TestGetRoundToForDelta(t *testing.T) {
assert := assert.New(t)

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@ -28,3 +28,37 @@ func TestTimeDiffHours(t *testing.T) {
assert.Equal(68, Time.DiffHours(t2, t1))
assert.Equal(24, Time.DiffHours(t1, t3))
}
func TestTimeStartAndEnd(t *testing.T) {
assert := assert.New(t)
values := []time.Time{
time.Now().AddDate(0, 0, -1),
time.Now().AddDate(0, 0, -2),
time.Now().AddDate(0, 0, -3),
time.Now().AddDate(0, 0, -4),
}
min, max := Time.StartAndEnd(values...)
assert.Equal(values[3], min)
assert.Equal(values[0], max)
}
func TestTimeStartAndEndReversed(t *testing.T) {
assert := assert.New(t)
values := []time.Time{
time.Now().AddDate(0, 0, -4),
time.Now().AddDate(0, 0, -2),
time.Now().AddDate(0, 0, -3),
time.Now().AddDate(0, 0, -1),
}
min, max := Time.StartAndEnd(values...)
assert.Equal(values[0], min)
assert.Equal(values[3], max)
}
func TestTimeStartAndEndEmpty(t *testing.T) {
assert := assert.New(t)
values := []time.Time{}
min, max := Time.StartAndEnd(values...)
assert.Equal(time.Time{}, min)
assert.Equal(time.Time{}, max)
}