Timeline for Mean coordinate issue with multipart polygons
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 28, 2015 at 13:39 | comment | added | AhmadKhan | Thanks for your help. In the end I just took out the centroids of each county and worked with those. | |
| Jul 28, 2015 at 7:27 | comment | added | GIS-Jonathan | @AhmadKhan - coastline may affect it because as I said, it's probably super detailed compared to the inland bits. Take a look at your data while you have editing mode turned on. You'll probably see lots more vertices on the coastline than there are on the rest of the data. That may be influencing the calculation. | |
| Jul 27, 2015 at 18:28 | comment | added | AhmadKhan | I can not delete the islands easily because each island is part of the feature which is the entire county. Is there a way to select parts of a feature by size? | |
| Jul 27, 2015 at 18:11 | comment | added | MAJ742 | Most likely because each island has a centre point that's included in the calculations so the average of all those islands pulls the centre away from the 'geographical' centre of the state | |
| Jul 27, 2015 at 18:05 | comment | added | AhmadKhan | How would coastline effect a mean coordinate calculation? I would prefer not to simplify the shapes for other calculations I have to do from this. | |
| Jul 27, 2015 at 14:56 | history | answered | GIS-Jonathan | CC BY-SA 3.0 |