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Will Charczuk 2016-07-12 22:19:49 -07:00
parent da41605882
commit 92edbcad44
1 changed files with 66 additions and 65 deletions
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README.md
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@ -103,75 +103,76 @@ In order to map the series to an alternate axis make sure to set the `YAxis` pro
```go ```go
graph := chart.Chart{ graph := chart.Chart{
Title: stock.Name, Title: stock.Name,
TitleStyle: chart.Style{ TitleStyle: chart.Style{
Show: false, Show: false,
}, },
Width: width, Width: width,
Height: height, Height: height,
XAxis: chart.XAxis{ XAxis: chart.XAxis{
Style: chart.Style{ Style: chart.Style{
Show: true, Show: true,
}, },
}, },
YAxis: chart.YAxis{ YAxis: chart.YAxis{
Style: chart.Style{ Style: chart.Style{
Show: true, Show: true,
}, },
}, },
Series: []chart.Series{ Series: []chart.Series{
chart.TimeSeries{ chart.TimeSeries{
Name: "vea", Name: "vea",
XValues: vx, XValues: vx,
YValues: vy, YValues: vy,
Style: chart.Style{ Style: chart.Style{
Show: true, Show: true,
StrokeColor: chart.GetDefaultSeriesStrokeColor(0), StrokeColor: chart.GetDefaultSeriesStrokeColor(0),
FillColor: chart.GetDefaultSeriesStrokeColor(0).WithAlpha(64), FillColor: chart.GetDefaultSeriesStrokeColor(0).WithAlpha(64),
}, },
}, },
chart.TimeSeries{ chart.TimeSeries{
Name: "spy", Name: "spy",
XValues: cx, XValues: cx,
YValues: cy, YValues: cy,
YAxis: chart.YAxisSecondary, // key (!) YAxis: chart.YAxisSecondary, // key (!)
Style: chart.Style{ Style: chart.Style{
Show: true, Show: true,
StrokeColor: chart.GetDefaultSeriesStrokeColor(1), StrokeColor: chart.GetDefaultSeriesStrokeColor(1),
FillColor: chart.GetDefaultSeriesStrokeColor(1).WithAlpha(64), FillColor: chart.GetDefaultSeriesStrokeColor(1).WithAlpha(64),
},
},
chart.AnnotationSeries{
Name: fmt.Sprintf("%s - Last Value", "vea"),
Style: chart.Style{
Show: true,
StrokeColor: chart.GetDefaultSeriesStrokeColor(0),
},
Annotations: []chart.Annotation{
chart.Annotation{
X: float64(vx[len(vx)-1].Unix()),
Y: vy[len(vy)-1],
Label: fmt.Sprintf("%s - %s", "vea", chart.FloatValueFormatter(vy[len(vy)-1])),
}, },
}, },
chart.AnnotationSeries{ },
Name: fmt.Sprintf("%s - Last Value", "vea"), chart.AnnotationSeries{
Style: chart.Style{ Name: fmt.Sprintf("%s - Last Value", "goog"),
Show: true, Style: chart.Style{
StrokeColor: chart.GetDefaultSeriesStrokeColor(0), Show: true,
}, StrokeColor: chart.GetDefaultSeriesStrokeColor(1),
Annotations: []chart.Annotation{ },
chart.Annotation{ YAxis: chart.YAxisSecondary, // key (!)
X: float64(vx[len(vx)-1].Unix()), Annotations: []chart.Annotation{
Y: vy[len(vy)-1], chart.Annotation{
Label: fmt.Sprintf("%s - %s", "vea", chart.FloatValueFormatter(vy[len(vy)-1])), X: float64(cx[len(cx)-1].Unix()),
}, Y: cy[len(cy)-1],
}, Label: fmt.Sprintf("%s - %s", "goog", chart.FloatValueFormatter(cy[len(cy)-1])),
},
chart.AnnotationSeries{
Name: fmt.Sprintf("%s - Last Value", "goog"),
Style: chart.Style{
Show: true,
StrokeColor: chart.GetDefaultSeriesStrokeColor(1),
},
YAxis: chart.YAxisSecondary, // key (!)
Annotations: []chart.Annotation{
chart.Annotation{
X: float64(cx[len(cx)-1].Unix()),
Y: cy[len(cy)-1],
Label: fmt.Sprintf("%s - %s", "goog", chart.FloatValueFormatter(cy[len(cy)-1])),
},
}, },
}, },
}, },
} },
}
graph.Render(chart.PNG, buffer)
``` ```
# Design Philosophy # Design Philosophy