Leonardo needed to show Imola as an “ichnographic” map, an idea that Vitruvius—a Roman engineer and the guy who inspired this—had described.

列奥纳多需要把伊莫拉描绘成一幅“平面图”，这是维特鲁维——一位罗马工程师，同时也是他的灵感来源——所描述的。

All these early ichnographic maps have asterisks, this one was spotted with its own inaccuracies and artistic flourishes, a reflection of the scope of the project.

所有这些早期的平面图都有星号，这张图有其自身的不准确性和艺术性，反映了项目的范围。