Element numbering by placed in 2D grid field


we have to number model elements like doors and windows according to the number of a particular field of a 2D grid the elements are placed in. The 2D grid is indepenedent from the actual building grid in the model and divides the building floor area into n fields according to its longitudinal and perpendicular axes. The 2D grid is referenced into the model as a dwg file. Every single field in the grid has a number. Doors and windows must be numbered according to the number of the field they are placed in. E…g. the yellow element is located inside filed nr. 3 and therefore has to be numbered as 3, accordingly the red one as 1.

Is there any practical solution to derive the number of a 2D grid field a particular element is located in? it

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