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I'm working on a qgis project, where I have shapefiles : one is a polygon of the area of interest, the other one is a point type file.

I need to split the polygon file based on a number of points. For example, every 2000 points will cover one tile of the polygon. So for 10000 points, I'll divide my polygon into 5 tiles each covering an area of 2000 points.

How can I perform this task automatically, instead of drawing lines to cut polygon everytime ?

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  • I guess there's a myriad of ways to split a polygon by taking clusters of 2000 points... If you need regular geographic divisions, consider using a grid.
    – wiltomap
    May 7, 2018 at 12:51
  • Thank you for your brief answer, but i'm kind of new to GIS, especially Qgis, so could you provide me with a bit more detailled guide ? Thank you again.
    – Issa C
    May 7, 2018 at 13:27
  • What is the distribution of your points spatially? Are they clustered or uniformly dispersed? Does that 2000 points per tile need to be really close or is a range, say 1500 to 2500 acceptable?
    – ZrSiO4
    May 7, 2018 at 13:41
  • Here's a screenshot of my shapefiles : (drive.google.com/open?id=1o6zzOEy5oFU6mH4GFalPLajsWdNpoyBb) As you can see there's no special distrubition, and also the polygon LAL69-plaque is the one i need to split in different tiles.
    – Issa C
    May 7, 2018 at 13:55
  • Also i can't use the grid because i don't need the tiles to be spatially uniform as this won't give me the desired result
    – Issa C
    May 7, 2018 at 14:00

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