zeni/go-chart
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This commit is contained in:
Will Charczuk 2016-07-29 16:36:29 -07:00
parent b3386853bb
commit d84d6790c0
25 changed files with 526 additions and 287 deletions
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8
pie_chart.go
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@ -99,14 +99,14 @@ func (pc PieChart) Render(rp RendererProvider, w io.Writer) error {
}
func (pc PieChart) drawBackground(r Renderer) {
DrawBox(r, Box{
Draw.Box(r, Box{
Right: pc.GetWidth(),
Bottom: pc.GetHeight(),
}, pc.getBackgroundStyle())
}
func (pc PieChart) drawCanvas(r Renderer, canvasBox Box) {
DrawBox(r, canvasBox, pc.getCanvasStyle())
Draw.Box(r, canvasBox, pc.getCanvasStyle())
}
func (pc PieChart) drawTitle(r Renderer) {
@ -138,7 +138,7 @@ func (pc PieChart) drawSlices(r Renderer, canvasBox Box, values []Value) {
var rads, delta, delta2, total float64
var lx, ly int
for index, v := range values {
v.Style.InheritFrom(pc.stylePieChartValue(index)).PersistToRenderer(r)
v.Style.InheritFrom(pc.stylePieChartValue(index)).WriteToRenderer(r)
r.MoveTo(cx, cy)
rads = PercentToRadians(total)
@ -155,7 +155,7 @@ func (pc PieChart) drawSlices(r Renderer, canvasBox Box, values []Value) {
// draw the labels
total = 0
for index, v := range values {
v.Style.InheritFrom(pc.stylePieChartValue(index)).PersistToRenderer(r)
v.Style.InheritFrom(pc.stylePieChartValue(index)).WriteToRenderer(r)
if len(v.Label) > 0 {
delta2 = PercentToRadians(total + (v.Value / 2.0))
delta2 = RadianAdd(delta2, _pi2)