问题
I want to put markers (circle) on my map render defined in cartocss tilemill. But on zoom levels 4-5-6 I have problem that render displays markers without city name, because there is no enough space for city name. Is there an option that forces to display both marker and city name or none of them?
回答1:
Use shield instead of text + marker combo. Note that for text offset you would need to use shield-text-dx, not shield-dx.
来源：https://stackoverflow.com/questions/23406923/cartocss-markers