Base map Zurich grid Grey

The city base map is a grayscale grid map of the city of Zurich, based on the data of the official survey and is optimised for the representation in the scales 1:1 '000 to 1:50 & #x27;000. **Purpose**: Serves as a background map for superimposed themes or as an overview map, both in printed and digital form.本城市底图为苏黎世市的灰度栅格地图（grayscale grid map），基于官方勘测数据制作，并针对1:1000至1:50000的比例尺显示效果进行了优化。 **用途**：可作为叠加专题图层的背景地图，亦可用于印刷与数字形式的概览地图。