zeni/go-chart
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adding validation.

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This commit is contained in:
Will Charczuk 2017-02-03 11:26:53 -08:00
parent 3ea3c9ac10
commit e735797037
20 changed files with 285 additions and 7 deletions
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2
stacked_bar_chart.go
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@ -94,7 +94,7 @@ func (sbc StackedBarChart) GetBarSpacing() int {
// Render renders the chart with the given renderer to the given io.Writer.
func (sbc StackedBarChart) Render(rp RendererProvider, w io.Writer) error {
if len(sbc.Bars) == 0 {
return errors.New("Please provide at least one bar.")
return errors.New("please provide at least one bar")
}
r, err := rp(sbc.GetWidth(), sbc.GetHeight())