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color maps

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This commit is contained in:
Will Charczuk 2017-04-14 17:43:52 -07:00
parent 4f15ced303
commit fdb1b191b2
11 changed files with 577 additions and 170 deletions
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19
_examples/scatter/main.go
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@ -14,18 +14,19 @@ func drawChart(res http.ResponseWriter, req *http.Request) {
Series: []chart.Series{
chart.ContinuousSeries{
Style: chart.Style{
Show: true,
StrokeWidth: chart.Disabled,
DotWidth: 3,
Show: true,
StrokeWidth: chart.Disabled,
DotWidthProvider: func(rx, ry, x, y float64) float64 { return 10 * (y / ry) },
DotColorProvider: chart.Vidris,
},
XValues: chart.Sequence.Random(8192, 1024),
YValues: chart.Sequence.Random(8192, 1024),
XValues: chart.Sequence.Random(128, 1024),
YValues: chart.Sequence.Random(128, 1024),
},
},
}
res.Header().Set("Content-Type", chart.ContentTypeSVG)
err := graph.Render(chart.SVG, res)
res.Header().Set("Content-Type", chart.ContentTypePNG)
err := graph.Render(chart.PNG, res)
if err != nil {
log.Println(err.Error())
}
@ -49,8 +50,8 @@ func unit(res http.ResponseWriter, req *http.Request) {
},
}
res.Header().Set("Content-Type", chart.ContentTypeSVG)
err := graph.Render(chart.SVG, res)
res.Header().Set("Content-Type", chart.ContentTypePNG)
err := graph.Render(chart.PNG, res)
if err != nil {
log.Println(err.Error())
}