termui/_examples/linechart.go

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// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
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// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
// +build ignore
package main
import (
"math"
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ui "github.com/gizak/termui"
)
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
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defer ui.Close()
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sinps := (func() map[string][]float64 {
n := 220
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ps := make(map[string][]float64)
ps["first"] = make([]float64, n)
ps["second"] = make([]float64, n)
for i := 0; i < n; i++ {
ps["first"][i] = 1 + math.Sin(float64(i)/5)
ps["second"][i] = 1 + math.Cos(float64(i)/5)
}
return ps
})()
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lc0 := ui.NewLineChart()
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lc0.BorderLabel = "braille-mode Line Chart"
lc0.Data = sinps
lc0.Width = 50
lc0.Height = 12
lc0.X = 0
lc0.Y = 0
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lc0.AxesColor = ui.ColorWhite
lc0.LineColor["first"] = ui.ColorGreen | ui.AttrBold
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lc1 := ui.NewLineChart()
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lc1.BorderLabel = "dot-mode Line Chart"
lc1.Mode = "dot"
lc1.Data = sinps
lc1.Width = 26
lc1.Height = 12
lc1.X = 51
lc1.DotStyle = '+'
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lc1.AxesColor = ui.ColorWhite
lc1.LineColor["first"] = ui.ColorYellow | ui.AttrBold
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lc2 := ui.NewLineChart()
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lc2.BorderLabel = "dot-mode Line Chart"
lc2.Mode = "dot"
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lc2.Data["first"] = sinps["first"][4:]
lc2.Data["second"] = sinps["second"][4:]
lc2.Width = 77
lc2.Height = 16
lc2.X = 0
lc2.Y = 12
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lc2.AxesColor = ui.ColorWhite
lc2.LineColor["first"] = ui.ColorCyan | ui.AttrBold
ui.Render(lc0, lc1, lc2)
uiEvents := ui.PollEvents()
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for {
e := <-uiEvents
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switch e.ID {
case "q", "<C-c>":
return
}
}
}