fix(radar): respect axisName width and overflow

[jesco-absolut]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Allow radar indicator axis names to respect configured axisName.width and axisName.overflow instead of always using the internal truncate fallback.

Fixed issues

• Radar 'width' and 'overflow' are not in effect #14449: Radar indicator name width and overflow settings were not taking effect.

Details

Before: What was the problem?

Radar indicator names are rendered through the shared axis-name builder. That builder always passed overflow: 'truncate' and width: maxWidth as fixed style values for axis names, so user-provided radar axisName text style options such as:

radar: {
    axisName: {
        width: 50,
        overflow: 'break'
    }
}

were overwritten before reaching the ZRender text element. In an SSR reproduction, long radar indicator labels remained a single SVG <text> element even with width: 50 and overflow: 'break'.

After: How does it behave after the fixing?

Axis-name rendering now uses nameTextStyle / radar axisName overflow and width when they are provided, while preserving the existing truncate fallback when they are not. With width: 50 and overflow: 'break', the SSR output now emits multiple text lines for long radar indicator labels.

A focused visual case was added to test/radar-axis.html to cover long radar indicator names wrapping within 50px.

Document Info

One of the following should be checked.

• This PR doesn't relate to document changes
• The document should be updated later
• The document changes have been made in apache/echarts-doc#xxx

Misc

Security Checking

• This PR uses security-sensitive Web APIs.

ZRender Changes

• This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

• test/radar-axis.html

Merging options

• Please squash the commits into a single one when merging.

Other information

Validation run locally:

• npx eslint src/component/axis/AxisBuilder.ts
• npm run checktype
• git diff --check
• npm run build:lib && npm run build

npm run build:lib && npm run build generated build outputs locally for validation only; generated files were reverted and are not included in this PR.

[echarts-bot]

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