[charts] Improve axis grouping logic #19067
Description
You mapped the new groups structure to generate getGrouping and keep this internal logic. BU tit might be simpler to directly use groups
const maxGroupIndex = groups.length -1
const allTickItems = []
for (let groupIndex = 0; groupIndex < groups.length; groupIndex+=1){
// No need to sort anymore
tickValues.forEach((tickValue, dataIndex) => {
const groupValue = groups[groupIndex].getValue(tickValue, dataIndex);
// ....
if(isNew){
// Add a new item
allTickItems.push( ... )
} else {
// Merge it with the last item
allTickItems[allTickItems.length -1].size += itemSize
}
})
}Originally posted by @alexfauquette in #18766 (comment)