Timeline for Overlay problem when importing a CSV file into QGIS
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Apr 10 at 12:33 | answer | added | elia | timeline score: 0 | |
| Apr 8 at 18:57 | comment | added | user30184 | The last decimal in lat/lon values means about 10 cm on the ground. It feels normal that several plant species grows on the same 10 by 10 cm square. | |
| Apr 8 at 13:52 | comment | added | elia | The "Point Displacement" solution allows us to correct the problem, but does not allow us to fix it at its origin. It's still a solution! | |
| Apr 8 at 13:51 | comment | added | elia | It would appear that the data has quality problems: in terms of completeness, topological consistency and positional accuracy. In fact, observers probably lack rigor when filling in their observations. This is a major source of error. For other entities, the superposition is unexplained, as data observed by different observers and at different observation dates are superimposed. It's these problems that we can't correct because we can't find their origin. | |
| Apr 8 at 12:04 | comment | added | J.R | You could use the "Point Displacement" renderer to visualize the superposed point | |
| Apr 8 at 11:08 | history | edited | Vince | CC BY-SA 4.0 |
naming; removed thanks
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| Apr 8 at 10:59 | comment | added | Nil | I was able to open the csv both with Notepad++ and Excell. The dataset has entities with same coordinates | |
| Apr 8 at 9:58 | history | edited | elia | CC BY-SA 4.0 |
added 158 characters in body
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| Apr 8 at 9:14 | comment | added | elia | Thanks for your replies, I've made some changes to the post where you'll find an image. I can't open the .csv file because it's too large, but it's impossible for two entities to have the same coordinates since these are wildlife observations and each observation has its own coordinates. For the record, these are data collected on the GBIF API. | |
| Apr 8 at 9:12 | history | edited | elia | CC BY-SA 4.0 |
added 183 characters in body
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| Apr 8 at 8:22 | comment | added | Pointdump | Sharing screenshots and a sample of data would help to see what you see. | |
| Apr 8 at 8:20 | comment | added | dimfalk | Can you share a subset of your data in order to be able to reproduce this? The dataset could have duplicate coordinates, you probably have issues choosing the correct separator. Hard to tell with the information provided. | |
| S Apr 8 at 7:49 | review | First questions | |||
| Apr 8 at 8:20 | |||||
| S Apr 8 at 7:49 | history | asked | elia | CC BY-SA 4.0 |