MatthiasMert
MatthiasMert
[Here](https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=MYewdgzgLgBAJgQygmBeGBtAugbgFCiSwQCmATgJYkQAyF0amuB4DYdY1jATAGz6E2AESQIADiApgoEHgAYF-AGYgyMABQAbErAqo5OGBRgAeGOynVDFANQ2AlDADeeGDEGxNlxtnxuPMGQIYHAgALaMALJIABYAdEEh4er2fjAqalo6MABW-oY5puYiyBJSMgV2ji5ubl6ccWIArhAx6hg5ADSBwaFhWKmuMAC-Q4jIjS1t9SSDbqSU1HTQk63qTlAAnmIkAFwwAOQzB93jCPtnGBRY3SRhYjEIEPT7TirALfsHC1QQB8PdCCbMIAIxAmi-YHAJH-g1GeBAYigFHAjBqMCgIHBYIAHq8hm4lCQkE0yHtnATamcAFpYsKvAGUxluZkwHEAQRxL2crM2nO5TlZP2o-2FtHoUDww3weG0sBiFAA5jEvMqoCQ4ABJEIkHGMAx4MKbADCjzIUDi4HUB0VmhAIIQmg-ZAgqmQAGsSGAThpHKgAHwUtxG00Ic1xOD0MRIYAxdnAZFW9FuLY7L4K5WqmJQE6UsXauC6_YZlVK7Magu6obDexDIYlrPqrU6nF2NIUJQaBtlpuVvWoAfmDjUaqU7tqist_VpUY1nBAA) is a minimal reproducable example to play around with and pinpoint the issue. The zoom button can be used to switch through the lines.
You can just pass html to the [tooltip formatter](https://echarts.apache.org/en/option.html#tooltip.formatter) function: [Example](https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=MYewdgzgLgBAlgWwOYwLwwEoHksBUD6ACgIK4ASMA1DAOQD0AJgIZRN1MQQCmUdiSdAO5cWACy4AnOhACuYMAE98ARgBMADgB0ABzBIaAbgBQRkNqhxwaGAG8jMGAA9ijuBABct-w5hQF2rk8aYBYuJBAJBRoAGm8HZlZPAG0aAFlwGNpcGS5MmgB1LgY83FEZPIAxCTg8gGUWOrkaAF1vAF9YhwUXN087H19_QNoANyYAGxyads7fEBBxi20-uJgAMwiEFihJTwYQWqhRWY7vbmquDxgk1f6BmASmZOUAVgAGaJhVAGYPr9UACyfVTKdSfZTfF7ggEAdmBADY3s1ZgM_AEguM4GBcqs2t5Wm1jCY1nJgBYrPtDqIABTaJgSJgICAASi8DgkPBkEjAtAAPAw4CMAHwwXkAIxkUCgVmgCnGXFQACJQOMIp4OQwDIqRRAQAguL4uI5YLy6BKpeAReKJFbtDq9QaEBEDTtjaK6HbRQLhTQqDBVjRefwYBAJMBUL7qMHqDQhdM2kA)
It would be helpful if you provided an example link. As you can see it is working in the one I provided.
Best I could come up with right now is [this](https://echarts.apache.org/examples/en/editor.html?c=area-pieces&code=PYBwLglsB2AEC8sDeAoWsAeBBDEDOAXMmurGAJ4gCmRA5AMYCGYVA5sAE7m0A0J6AI2ABXaABNGXAOKMQRAGaMANniokAvn3Tkc-IqlJlKNWLQBuy4VV79YQ0ROmyiAbQAMPUwGY3AUloAuhpasGb4wsoAss7EhhTUdCAQVPRUAO741iHoeAAWwGkKyqrZsGIQALZU0HhQ0EQetqocyXgAkuJUGEQAjKVJKVSEsC626AaGpKxgDaWGSjOwfWOk9MBKnHRpuRAstCuaKxOTsNNEXnOkC0QArJfoaxscWzt7B5fHk2ewAOz3sI9NqZtrtrAdbEF0IcclQWkNXLZPuh4iZaEoINAsis8BVgMAwLkGgA6ABslzw5AqQiUdGgMCxJ3RmIAyhQlCYkat1kDaABiG4AFh-bgAwiSbCd0BkxATbu8VhVJABrAAyGI5KxylOprlodMxvFM-usAX-SkYAioNOQsDyBSKKiosGhkokYEYriQmF0wx6zs8XuwuGGXn9NqDelgNzDgZ9RB-zshkxdhkkVEYrPI7P0moB3OesExaVgKVykjAeCJrA4sh29CJasxkikNfK1TAAAoPLBu92-iNc-NB6RgPJ5KpFo1JZNAQXaBxWAIOwAmG53JY3AAcnhJm4AlPtp1D_kOjyOxxPeieuU86Aul6v18LPD0vD0D8P1LmAnv5Sc3R6A7Ti4tDLm4PQAJwALQ9G4MFuIaYFuKauYgWBkHwTBPSGjcJLIf8aHgdBsEwcuho_Dc-GoaBRGYa-OGblRwE0RhJE9AKiGUShzHocRcE9Dcho-ExkqEax_Hip4ApcQRLF8TBPxCW4IknGJ8k9JuhqwchKxJseiIrCidBMgykw4niso9qS5LaustL0hKkwmZm2axJKs50PyQqipJubSpZNx_pMaYZmyHIpqQAEIjxtFsQhnhIdxolyXR2GeLhKmTGpdFkZ4FGZYY2VsV4DEFaQRX8RxCUydRvF0YJnjCUlqkpWxkmwNJZXoBVClKV1IytfxmkvspemkGNX7oEE6gANxAA). Note, that you can apply multiple series with white visualMap: [Example](https://echarts.apache.org/examples/en/editor.html?c=area-pieces&code=PYBwLglsB2AEC8sDeAoWsAeBBDEDOAXMmurGAJ4gCmRA5AMYCGYVA5sAE7m0A0J6AI2ABXaABNGXAOKMQRAGaMANniokAvn3Tkc-IqlJlKNWLQBuy4VV79YQ0ROmyiAbQAMPUwGY3AUloAuhpasGb4wsoAss7EhhTUdCAQVPRUAO741iHoeAAWwGkKyqrZsGIQALZU0HhQ0EQetqocyXgAkuJUGK4AjDwATDxeAaVJKVSEsC626AaGpKxgDaWGSkuwfTOk9MBKnHRpuRAstFuaW3PzsItEXiuka0QArPfoO3scB0cnZ_eX8zdYAB2V6wd77UyHY7WM62ILoc45KgtCauWz_dDxEy0JQQaBZLZ4CrAYBgXINAB0ADZ7nhyBUhEo6NAYASrrj8QBlChKEwY7a7CG0ADETwALEC3ABhKk2K7oDJiMnPX5bCqSADWABk8Xytjl6YzXLQWfjeKZTdYRvrYEpGAIqEzkLA8gUiioqLBEfKJGBGK4kJhdJMel7PIHsLhJl4w87I3pYE9YxHg0QgV74fNvYZJFRGNzyLz9DbwZ9YPi0rAUrlJGA8BTWBxZEd6BSdfjJFIm-VqmAABQeWCDwd9KY22bj0jAeTyVTrRry-alugcVgCPv9J4vDZPAAcnipu4AlKdFwjQROz1OZ3OiJsr29BWXaKv15vt5LPD0vD0T5P1DaARHqqVy-v6Y6Li4tD9G4PQAJwALQ9G4SFuOaMFuNakHQbBiHIUhPTmk8VKYaCUEwfBqFIf05pAk8pE2uRuFUd-RG7gx2EUXhKE9GK6H0Vh8pMZR-E9E85o-BxQk4SJPGyp4YoCWRMncUhQISW4UlXMJqk9Lu5rIZhWyZue6JbFidAcmy8xEiSypDtStKGrszKsnK8xWQWRaxPKy6mKKErSvJNqKvZTwgfMub5jyfLZqQYFopxzGiWhngYYJ2kqSxhGeMRWnzDpLE0Z4dH5YYhWiV4bFlaQFU8XxaVKYxWWieJniSRlBUtXJ5qKTV6B1WpGn9VM3VIfpX6aSZpDTXF_IWaYVnuYYtmkuSDk0oSzlOiabn3J5MXFoufkiuKkoyst8yhet4VXHF6BRV5sX3AlEHSVxLGpbA6XKR9ok5YmJGdeVY09MVwJNUlslIVVuXscDtWgw132Q-9yU8W1sAdb96NIfJsB9QjA2g-p7VTTj0N6QZU3GbYc3mcYlm6pdOTEmtlKbVcdIMi5Fp7VsB2Fnqx1PnQAXncFi7XSqd33I9h3IPdZTMOB0xQ7pX0_c1f08QDeVE6NOvUbRqOZUbrFwyNg28fxVug5j2Pa7jPT44TFO6aTWPk07lMTRsNNXLNJBBOoADcQA)
I dont think there is out of the box support for this but you can implement it yourself using [onclick event](https://echarts.apache.org/en/api.html#events.Mouse%20events.click). Here is an [example](https://echarts.apache.org/examples/en/editor.html?c=sunburst-simple&code=G4QwTgBAJiAuIQLwQNoCgIQN4cxAdiALYCmAXBAOQDiYI-UADiJQDS6YDGAFgJYA2UMCXwV0ePDgkTCpCpQCq-TvxIQAMiQD2bDtND8AruQgBGAKztpeHgKEixe61OvTZJygGEthgM698CAApEE4Aa11XfRAjEwAmJ2kAXyso7ETrd3lvPwCIAFlwAE9ItMwDYwpLDOlbQWFRVBrnZtcsqhDw3y18UrKJCvjWiSThiABdVpTWlzL2rx9_QIAhET60wYoAFimayetplqj5gDE4bhIwdYGYyrMABlTrOvtG8TTZtPn8kmvXTYg5imT1cn2OxA8yzAWlgF0gAAUSLBLn9rADTLsovtknpsYd0jIIfIAHL0TglEEvBqOI5tIlUJQqNTE3hhX4giRUhxNMpgulyKg5JYQVawWAUsbo4EzMbzIV5IIifAS_oQAEJMqjLGJLV4PFocYAbjQWkYsF4PSQBIgvkuvBIvgon3FjA8vkM-AARoYwL5YOsAPQBiAkIiMbggfyO62YIPSABmWk4fnkZIdsC0Vz0cfxmBg8Aoydg6hARUuvgAFPmQABKEF0KC8FOoR5UACc9wApJRxiD-CBPSR-E7EtD4Mj5A3eDFKHpdaMksa0MvVLAIMmwA1YMaiEVPBGwLAAHQ9CuUFS8cJsCAV5h0Ii-GtIAB81tXBBIAHcACJwEDGzBeHjG872IXwj3cJBEGQShPVCCIn0-fAv1_eArXjAIoHhcARFgKs_1YdcfS3GsALwICb2Qn8_0QxINy3K0qNQkAIIhMjMCSEN-FtGMbGI3CrQ9KASAw5CoHYvAmL_K1qwk-cuJ4pCUOk5BRKgABRfBYDAIp8PgQjQIfVjSFIvR6IE5BDPA9wyN1XApLQ5AixLMtfQrBzazI3AKIrcytNoiRd33cBj1tWAAHkzQtfAKywW0wHtaMUCwasxCweY4KvQiuTeDzxiSfL8tMjiFLUT4goPUKkUi81Tziu0HTS1KP2o-ACqSYqIDsjqlzQeMPU4WrAjUzTtN06tCPcAKIHfYRYB9fAADVbhIMi_OLUtLhkv8yOQgAPDbXKtFAjVwXBPz4VQK204xpswfbDq25AToksz-K0lzLiPRMwHU0JuArCteGRIgn0QV8-R84HQ2MtRoOQKbeIkOaFuW2IrWhogJORpEFuxrrEkSKGQaPHK7rcEgDs-yAEcpx6wFJnpODgIGSbJ_HdQ4zrMD0ICKxRsAlpW8nMAFwIxbR4w5L0XngPcunqaPVR8AAc1hKDkHuEWIDF6WJDezdcOpxiFc2sBbLQUZl365QhogNTsK3PSQEmiFptm3HBcl1bcHfdbjeQWTfaRD8qbNrzMAugQSGusBbt4h6A9QU79c5d76e-zM_p4QG71wsGIaJuW8600nLtebXMBL48csz37_sBl4C6R6QfJeWGNYIN2W-sCWVqtav8d7z38CHvBOeSbnpBqROzZNsPXMZ5QWersu7AaKeOLnKfZf5kfve1sWdf3la9bwWXKNNxflbV7hO61lvdbnGW08Nj659phfLgtnmrZtwbopEXppWas01OA9D9MfeaXt-7ID9HHQaPoSBQE8PwHoMdQFrQgVoVQSstAqz3tAoWsQazLkAnLPusQ171BEOTShxhqGvDrtnAGFZ-yuTiM3SGct2GXDiIwjePcZpm34bXH6LDAa8LAAAZi4a0KR0iBEiEEgwESARkFjx6jqbetlSq8XoSQZhDc2Fm1MHI6wPkpGmCUfgSuwjXLWLEVnYxUjOEviEeQm8ribF2IkN4px9cc4mNcrI9xfIogKJsSo4SokNFjC0ZqGoCScQjE6nZUWI8oGo1PpbIAA).
A possible workaround can be found [here](https://stackoverflow.com/questions/79047437/different-formatting-for-min-max-label-on-a-time-axis-with-echarts-js/79060790#79060790)