59 lines
1.8 KiB
Go
59 lines
1.8 KiB
Go
// MIT License
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// Copyright (c) 2021 Tree Xie
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package charts
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import "github.com/wcharczuk/go-chart/v2"
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type BarSeries struct {
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BaseSeries
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}
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func (bs BarSeries) Render(r chart.Renderer, canvasBox chart.Box, xrange, yrange chart.Range, defaults chart.Style) {
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if bs.Len() == 0 {
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return
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}
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style := bs.Style.InheritFrom(defaults)
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style.FillColor = style.StrokeColor
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if !style.ShouldDrawStroke() {
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return
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}
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cb := canvasBox.Bottom
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cl := canvasBox.Left
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for i := 0; i < bs.Len(); i++ {
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vx, vy := bs.GetValues(i)
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x := cl + xrange.Translate(vx)
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y := cb - yrange.Translate(vy)
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chart.Draw.Box(r, chart.Box{
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Left: x,
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Top: y,
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// TODO 计算宽度
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Right: x + 10,
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Bottom: canvasBox.Bottom - 1,
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}, style)
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}
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}
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