- Resolves #9325
- Resolves #14106
- Resolves #4771
2) feat: `markLine.symbolRotate` can be an array to specify symbol rotation at the two endpoints.
- Related #12736, #12392
3) feat: add `markLine.symbolKeepAspect` and fix `symbolKeepAspect` doesn't work bug.
4) feat: `symbolOffset` can be a callback function, close #12495.