Timeline for Creating vector grid in QGIS for two different polygons without overlapping
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Oct 17, 2023 at 15:49 | history | became hot network question | |||
| Oct 17, 2023 at 12:20 | history | edited | Vince | CC BY-SA 4.0 |
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| Oct 17, 2023 at 11:29 | answer | added | geozelot | timeline score: 3 | |
| Oct 17, 2023 at 10:06 | comment | added | geozelot |
E.g. for an exemplary input Point coordinate pair P[X: -12550035.7, Y: 3798621.8] (in EPSG:3857, which you should not use) and a grid cell edge length CL=1000 [m], the Point P_C[X: Floor(P.X / CL) * CL, Y: Floor(P.Y / CL) * CL] would be the bottom left corner of the grid cell point P falls into. No need to check 100M Polygons for that...
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| Oct 17, 2023 at 9:19 | vote | accept | Arup Chakravorty | ||
| Oct 17, 2023 at 9:09 | history | edited | Arup Chakravorty | CC BY-SA 4.0 |
added 330 characters in body
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| Oct 17, 2023 at 8:58 | comment | added | Arup Chakravorty | @geozelot Client wants to create plots over the whole world so this is the solution I could come up with my limited knowledge as we have done the same thing for north America only. however if you can just elaborate a little on your solution or point me towards a article on it I would be really grateful. | |
| Oct 17, 2023 at 8:33 | comment | added | geozelot | Before anything else, do some math and ask yourself if you really want to generate +100 000 000 Polygons - and if so, how to work with them after. The ad-hoc gridding of coordinates is extremely cheap in comparison. | |
| Oct 17, 2023 at 8:32 | answer | added | Babel | timeline score: 2 | |
| Oct 17, 2023 at 7:49 | history | asked | Arup Chakravorty | CC BY-SA 4.0 |