Timeline for Arc Raster to polygon mesh?
Current License: CC BY-SA 3.0
24 events
| when toggle format | what | by | license | comment | |
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| Aug 4, 2016 at 19:05 | answer | added | cartoscience | timeline score: 1 | |
| Feb 4, 2016 at 7:21 | answer | added | PolyGeo♦ | timeline score: 2 | |
| Feb 4, 2016 at 7:20 | history | edited | PolyGeo♦ | CC BY-SA 3.0 |
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| Feb 2, 2016 at 6:22 | history | edited | Stu Smith | CC BY-SA 3.0 |
deleted 1 character in body; edited tags
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| Feb 2, 2016 at 6:16 | history | edited | Stu Smith | CC BY-SA 3.0 |
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| Feb 2, 2016 at 6:14 | history | edited | PolyGeo♦ |
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| Feb 2, 2016 at 6:14 | comment | added | PolyGeo♦ | To fit the Q&A format would you be able to cut/paste your solution into an answer, please? It is fine and encouraged to self-answer that way, and we like questions to be just that, rather than a mix of question and answer. | |
| Feb 2, 2016 at 6:10 | history | edited | Stu Smith | CC BY-SA 3.0 |
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| Feb 2, 2016 at 5:45 | history | edited | Stu Smith | CC BY-SA 3.0 |
Added my solution.
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| Feb 2, 2016 at 5:38 | history | edited | Stu Smith | CC BY-SA 3.0 |
Added my solution.
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| Feb 2, 2016 at 4:25 | comment | added | PolyGeo♦ | It's now re-opened. Can you re-scope its tags to one GIS product at the same time as providing your answer, please? | |
| Feb 2, 2016 at 3:42 | history | reopened | PolyGeo♦ | ||
| Feb 2, 2016 at 3:26 | comment | added | Stu Smith | @PolyGeo Thanks for keeping an eye on this question. I have developed my own answer to the question, so please take it off hold and I'll then post the answer. Thanks. | |
| Jan 31, 2016 at 21:40 | comment | added | Vince | A polygon vs polyline fishnet wouldn't make a performance difference at 1.8m features, but using some looping to generate 1365x5 line segments at 1/5th the area width by 1304x5 segments 1/5th the area height will give you 13.5k lines that should render efficiently. | |
| Jan 31, 2016 at 20:47 | comment | added | Tom Dilts | 1) Convert the grid cells to points, 2) use the generate near table to get the distance between points but make sure to set a search radius that ensures 4 cell or 8 cell connectivity, 3) use the XY to line tool to create line segments. As suggested by Vince above be cautious with large datasets, and maybe try testing this approach on a subset. | |
| Jan 31, 2016 at 20:39 | comment | added | Tom Dilts | If you choose to work in ArcGIS here are some thoughts: | |
| Jan 31, 2016 at 20:39 | comment | added | PolyGeo♦ | I'm recommending that you ask it for the GIS software that you are most likely to use. Then, if you do not get an answer that helps, ask it for the other. | |
| Jan 31, 2016 at 20:34 | comment | added | Stu Smith | @Vince you are correct, a polygon layer that large would run pretty slow. Your comments have forced me to rethink my needs. Actually, I only need the output mesh for display purposes, not analysis. So an output polyline mesh might run faster that a polygon mesh. In any event, I need a mesh that displays every cell outline, even if the resulting output runs slow. | |
| Jan 31, 2016 at 20:29 | comment | added | Stu Smith | @PolyGeo are you proposing that I ask the same exact question twice, once for Arc and once for QGIS? | |
| Jan 31, 2016 at 20:01 | comment | added | Vince | The performance of your 1.8m row table is going to be awful, and it isn't likely to be all that useful. It might be worthwhile to stop and evaluate what you're likely to able to do with this undissolved raster as a vector that you can't do with it as a raster or dissolved vector. | |
| Jan 31, 2016 at 19:59 | history | closed | PolyGeo♦ | Needs more focus | |
| Jan 31, 2016 at 19:54 | comment | added | PolyGeo♦ | Please focus your question on one GIS product or the other to prevent it being too broad. You can always research/ask about the other product separately. | |
| Jan 31, 2016 at 19:52 | history | edited | PolyGeo♦ | CC BY-SA 3.0 |
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| Jan 31, 2016 at 19:50 | history | asked | Stu Smith | CC BY-SA 3.0 |