edit

Draw Flattree

DRAW_FLATTREE

SELECT 'RU' as country,'MOS' as city,12 as valueLink,32 as countryValue,50 as cityValue
UNION ALL
SELECT 'RU' as country,'NOV' as city,112 as valueLink,32 as countryValue,12 as cityValue
UNION ALL
SELECT 'RU' as country,'SPB' as city,238 as valueLink,32 as countryValue,30 as cityValue
UNION ALL
SELECT 'RU' as country,'SCH' as city,8 as valueLink,32 as countryValue,10 as cityValue

DRAW_FLATTREE
{
    path:'country.city.valueLink',
}

tabix draw tree

Custom render

DRAW_FLATTREE
{
    path:'country.city.valueLink',

    layout: 'radial',
    symbol: 'emptyCircle',
    symbolSize: 7
}

tabix draw tree

DRAW_FLATTREE
{
    path:'country.city.valueLink',
    symbol: 'emptyCircle',
    orient: 'vertical',

}
tabix draw tree vertical

Echart Docs

http://echarts.baidu.com/examples/editor.html?c=tree-basic

https://ecomfe.github.io/echarts-doc/public/en/option.html#series-tree