Timeline for How to make a 3D globe?
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
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| Dec 23, 2019 at 14:48 | history | edited | Mark McClure | CC BY-SA 4.0 |
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| Dec 23, 2019 at 14:41 | history | edited | Mark McClure | CC BY-SA 4.0 |
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| Apr 16, 2014 at 16:57 | history | edited | Mark McClure | CC BY-SA 3.0 |
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| Apr 30, 2012 at 2:23 | comment | added | Mark McClure | @Istvan Thanks! I do hope that you find it useful. While I believe it to be essentially the correct approach, there is, of course, one weakness in use of third party software. If you happen to use Macintosh, I'd be happy to assist with that issue. | |
| Apr 29, 2012 at 23:33 | history | bounty ended | István Zachar | ||
| Apr 29, 2012 at 23:33 | vote | accept | István Zachar | ||
| Apr 29, 2012 at 23:32 | comment | added | István Zachar | This is a really detailed and heavyweight solution, thank you for all the effort you put into it! One solution for @Heike's concern would be to triangulate full continents, and later add simplified lines for inland borders. This way of course one cannot color countries independently but if that is not important (like for me) the outcome might be even smaller in filesize than your result. Anyway, it definitely worths the bounty, thanks again! | |
| Apr 26, 2012 at 16:53 | comment | added | Mark McClure | @Heike Clearly, an important consideration. Assuming that bordering regions in the initial description refer to the same vertex set (a requirement for ESRI Shapefiles), you can start the iteration from a state that includes branch points. This is certainly more complicated and seemed unnecessary for this problem, so I did not consider it. | |
| Apr 26, 2012 at 15:49 | comment | added | Heike | @MarkMcClure I like the polygon coarsening algorithm. How would you make sure that neighbouring countries still match after the process? | |
| Apr 25, 2012 at 17:01 | history | edited | Mark McClure | CC BY-SA 3.0 |
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| Apr 25, 2012 at 16:48 | comment | added | Mark McClure | @Istvan Please see the massive re-write. | |
| Apr 25, 2012 at 16:48 | history | edited | Mark McClure | CC BY-SA 3.0 |
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| Apr 9, 2012 at 21:03 | comment | added | Mark McClure |
@Mr.Wizard I've not tried that package. I'd be a bit surprised though if it does work. The obvious polygon to try it on is First[CountryData["Norway", "Coordinates"]].
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| Apr 9, 2012 at 0:21 | comment | added | Mr.Wizard | Mark, does the PolygonTriangulation work? Will you include full code to use it if it does? | |
| Mar 30, 2012 at 19:13 | comment | added | Mark McClure |
@Istvan The FullPolygon version is rotatable, but barely. It's jerky and has crashed my computer twice in four tries. The compressed Graphics3D object is 32Mb. If you really need something finer than SchematicPolygons, then you could possibly take the FullPolygons and run them through a point reduction algorithm. The problem there is that it can be difficult to preserve the topological properties, i.e. the polygon may end up intersecting itself.
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| Mar 30, 2012 at 17:43 | comment | added | István Zachar | This is a promising approach! Could you please tell something about the performance of the FullPolygon-ed globe, whether it is fast to rotate, or does it lag? | |
| Mar 30, 2012 at 11:15 | history | edited | Mark McClure | CC BY-SA 3.0 |
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| Mar 30, 2012 at 5:20 | history | answered | Mark McClure | CC BY-SA 3.0 |