Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
For example, the city of Rotterdam represented as a hexagonal grid.
The MMQGIS plugin has a Create Grid Layer Tool. You can use that to create a vector grid layer and then intersect it with your city boundaries polygon.
Required, but never shown