Dot maps: Mapping data collected at each location, attempting to show the spatial density of various places.

点子图：绘画由各位置收集得来的收据，用以显示事件于不同地方出现的密度。

youdao

Dot maps: Mapping data collected at each location, attempting to show the spatial density of various places.

点子图：绘画由各位置收集得来的收据，用以显示事件于不同地方出现的密度。

youdao