Jas2042

Related: https://github.com/ecomfe/vue-echarts/issues/707

A quick look and where `tryConvertExpr()` is called seems to indicate the returned `Function()` is dynamically called on the 3D Scene. (Not really sure tho) The code above would not...

Also an approach like the following libs use may be feasible: - https://github.com/akira-cn/js-expression - https://github.com/bugwheels94/math-expression-evaluator