Builds the layers for one pie, funnel or gauge series.
A pie and a funnel are one layer each; a gauge is one per pointer.
ECharts draws a pointer for every entry in a gauge's data -- measured, a
two-entry gauge reports count() === 2 and puts two needles on one dial --
and GaugePoint is a single reading, so two of them are two layers rather
than one reading and one silently dropped. What that loses is that they
share a dial; nothing in the grammar carries it, and both min and max come
out the same on each, which is as close as it gets.
Builds the layers for one pie, funnel or gauge series.
A pie and a funnel are one layer each; a gauge is one per pointer. ECharts draws a pointer for every entry in a gauge's
data-- measured, a two-entry gauge reportscount() === 2and puts two needles on one dial -- andGaugePointis a single reading, so two of them are two layers rather than one reading and one silently dropped. What that loses is that they share a dial; nothing in the grammar carries it, and both min and max come out the same on each, which is as close as it gets.