33 lines
773 B
Go
33 lines
773 B
Go
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package chart
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// ConcatSeries is a special type of series that concatenates its `InnerSeries`.
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type ConcatSeries []Series
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// Len returns the length of the concatenated set of series.
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func (cs ConcatSeries) Len() int {
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total := 0
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for _, s := range cs {
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if typed, isValueProvider := s.(ValueProvider); isValueProvider {
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total += typed.Len()
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}
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}
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return total
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}
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// GetValue returns the value at the (meta) index (i.e 0 => totalLen-1)
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func (cs ConcatSeries) GetValue(index int) (x, y float64) {
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cursor := 0
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for _, s := range cs {
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if typed, isValueProvider := s.(ValueProvider); isValueProvider {
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len := typed.Len()
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if index < cursor+len {
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x, y = typed.GetValue(index - cursor) //FENCEPOSTS.
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return
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}
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cursor += typed.Len()
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}
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}
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return
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}
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