Named annotations in *meta_[clihf].dat files

Hi ladies and gentlemen,

I was wondering how the *.dat files were generated, and if it would be possible to annotate some of them with their names in some standardized format. For instance, for countries, we could append another field after the #bytes value that contains the ISO2 name of the country of the coordinates listed. Then one could build LineCollections for each country and do fun per-country graphing.

Otherwise, we need to use shapefiles -- not all that bad except they might not match the specified resolution or even the data included in basemap.

I'd love to submit patches, but unfortunately there's no rhyme or reason to the internal organization of the *.dat files. I hypothesize having their source will facilitate such a transformation.

Thoughts?

首先追踪 meta_[clihf].dat 文件的生成方式并了解其内部组织结构，然后审查 #bytes 值之后提议的标准化字段。结合现有的 shapefile 方法，考虑 country ISO2 和 LineCollection 的使用场景。完成意味着项目已经确定并记录了格式，并且有明确的源或转换路径。