helgasoft

The **z** value for markers is constant and not incremented with its parent z-value. - markArea default z is 1, [source](https://github.com/apache/echarts/blob/fbee94d5dd3fe8a957524620eb3657145670bd50/src/component/marker/MarkAreaModel.ts#L84) - markPoint default z is 5, [source](https://github.com/apache/echarts/blob/fbee94d5dd3fe8a957524620eb3657145670bd50/src/component/marker/MarkPointModel.ts#L73) - **markLine**...

duplicate of #14706 legend item buttons are keyboard accessible - [Demo](https://echarts.apache.org/examples/en/editor.html?helgasoft=keydown+keyboard&code=PTAEGMHsDsBcCcCWAjArrRNTIJ6gBYCmANgOYCGAzpAGawB0UAtgFCQAOGWAvKAN4tQoDLGKEAXP1CVUyWIQAesSQHJ28QpUqhAXaShI8UIBHSYZFCEm7fFUQAvQtnLwANKACC-wwCFQNA6DFSQmgAExVQAF9nQVNIYgx2ST4omIU3BURKJOEcdglQFXByeVIDHHCUoRx0zKTK0BDiqkJlfhihalR4cHyAbXahUF6ABlcARlHQACYpgF1owcHesdcpgFZxuYXFoanXAGYN0H39-YGhXv3XABYjsYA2M52h69WADlXr2YHvoXrA4IhJJIUj4ZQqGYAUhU9UohCQmkk_UWAmesFy-RUyCcKm2i2g5CYmLcuPO5ks1kotSkiHkTAAyuixNkoMQDKoNGFIpEBvUhKidui8qpsfBSc8CUTVF5xTsLFYbFkaXTGThmVJWeyCpyKjzFhEYt8IgBuFgsRAhBSgXhTU1w2AAFUQRMg6AAFDRUNBwFxoKA3QBKNpCJg4ADC1ngDBCmXYxXA-DcPsw0DdAqEQsx-EQoOIObBsqEjVg5AAkqFFJILQo8dJ4YhNOWQpXQKMYhEA6aoqAxr3OywAO6IUKQAf0cghEIAUQAbsFYAAZTLyaDwt0qADWhBwIVH0Fxvi9yawbvY7CDAsQNH9vRUbng8FHC8IdAPd4fo4ASvnYCpZvRh3AYhUGbShT3YRhIGbAMLwGK9_TPSDm2tXh30fAdn1fINq2tUAAFlinwegmHIBQ3RwgBaHtXGGftFng8CkIcbhUPvdDv1BX9sMtXCCNgIimGHcieIAamo_ROBTehi2aBhOm6Qh6DEaBSH40AqLGOjBlDCMnGjWN40TY9Uz4HJhQKXcB2gdhiHIcpXDhBFKCbFthkiLSQ3DSN9MoONYATJNfTTMys3zPNOIPGSXIUKtLQc-tGwrGLW3c00_hiBjEKgZCWIKABpbcSSDHTvOkgz_KMoLTMzVQAVCB1IFIUgxHpEhCB9A9JQkO8YS0zKIOy5jUIKnAZWKry9LK3zDMClNgpqgo6pCBqmpatqOtcLrxBUGUOy7fsWAAEjdXdwFQIk4ADegNAnHAPSPX1_VgoRwBnKhcOOlQAGIEz0iioDgchh3hFQAxGWY0ogN7KHoEtkGi3DezGSHXqoeg_DOsDO0WEAIG80BV0IEJfEgTHTFAJgYFpfwtx3PdzDnOAWD2oA) 📌 please close issue if problem solved.

When the Demo is run in the Editor, there is a top button "Render" to toggle between Canvas and SVG. There is no difference in behavior, both work the same...

@meganthecoder, do you have a code example for SVG or some inner element (path, rect, text, etc) being defined as ```role='button'``` ? There are [other tags available](https://www.unimelb.edu.au/accessibility/techniques/accessible-svgs), but I could...

@meganthecoder, thank you for the example. It proves that SVG paths can indeed become buttons for screen readers. Which means ECharts legend items (SVG paths) could be made accessible by...

I'm a voluteer not involved in development, so cannot provide an estimate, sorry. To recap - legend items in SVG should get the following additional parameters: ``` ```

[Demo Code](https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=PYBwLglsB2AEC8sDeAoWtJgDYFMBcya6GOAHmAQOQDGWE1A1rHdDrCMBNGAM4bCwc0AIYAjXAHoAJhB5jcsAF7BgAW0oAaIuh4BXUWDIVYlIfJxTKRAL5b0pAIKlZBANrbCxYlOFhhbygBZGE0TABVdHFDKAHULaLCAC11ogDEAJwhogGVfHN1oSgBdD1sPJB5E4AB3PAAzYSweHGsiIrtYAE8nF2RYMp0cTJweN3KPdB8_NwBGAFYABg1YACYAZiXVlYAWZZWZgA5lmbW54-2Adj2ANgX2iYxOkHwTFijlnk7VUWAsbIhFC8ZjNSm0OlNhAAtFSqMYASDhqARcLATxeACIeHQpEN0VpkRIJOiZHJxBZ0QQwOlIigEa04SVrABuFBgADmWAQsAaTRwTPQhK5ZjJUiUMJQTEQFTwm3wMwWC2ZKFUnQAwolhOkwAA6GAACkoEOhalCepAmuEqgAlAgAHyeWAQOqwPUAQnZWCtE0lyFG7Atqm1PD8WuWL3N6Ut2qEUiV1itLJV6s1Ov1NDojFNNvg9tQ6A9CHdHJZ6AgUlIXILAH5YDNYAQFiXYKAwFy88RMLgCO2vHoDEZKRzYDXDbJzJZ6yZhbhLB1e_pDORsqiu8hqL9gOlB5yR-l4pPKOJhJnWl4Bt5fFCYW4e8RHM4eABJaA40gEMukOfEYMpggMINhi-f7RqUJToEq6BJhqWpBjgYAAPLgFA0B6i2CYoPGTJAA) - workaround to disable _dataZoom_ **functionality**. It does not visually downplay the dataZoom control. On toggle it switches back to latest (saved) zoom range.

Why have two identical maps superimposed ? Usually one map is sufficient - [Demo](https://echarts.apache.org/examples/en/editor.html?c=gauge-grade&code=PYBwLglsB2AEC8sDeAoWszGAG0iAXMgL4A0asAzgKYBOEVFhA2uequhxgJ4hWEDkAWwCGIfmU7oRBWPwDuwGtgAm41h2XCww5us5JY0YYL6yAqtAhgqy2AGVt1iuNgA3YdgCupgIwAGP1hSPQ4DIxMBAGFhI00Xdy9TACYAoIlJNkNjU35IgAsII3iPb0IAZlTgjMzwnIBJaGUIYWLEwgAWSpCAXXUicm701wgKTw8AWVFdfRCwHhyQegBjKjkRqjUMxaoVxlgWauRYQULCPxJj4QAPQhTz2GxhACMqbAEAQRclnEUBAGIAKx-YRlJ4tNIhTInaC3Pw-C4iG6wTr3R4vN6yABCXx-NH-ygAnO0qADVEEeulOMBPGAAPIAMwASjEAOamAzVb7YX77fh_JYC_jdDL9Tii2C9IgAbiAA).

I seriously doubt ECharts allows more than a **single map** on a chart. Simple experiment is to set a different [center](https://echarts.apache.org/en/option.html#series-map.center) on each map. And with a single series there...

I think your last example is a good illustration of the **bug**. There are two map series defined, but their data is **auto-merged** into one (=bug!). The first _visualMap_ controls...