Refine chinamap chart
Merge pull request #102 from JacksonTian/refinechinamap

Refine chinamap chart
Refine chinamap coding style
Merge pull request #103 from JacksonTian/refinechinamap

Refine chinamap coding style
Clean coding style
fix map example
Merge pull request #105 from JacksonTian/refinechinamap

Refinechinamap