Timeline for Geotransformation for polar stereographic?
Current License: CC BY-SA 3.0
37 events
| when toggle format | what | by | license | comment | |
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| Apr 3, 2017 at 21:13 | answer | added | glaroc | timeline score: 2 | |
| Oct 18, 2016 at 5:56 | history | edited | PolyGeo♦ | CC BY-SA 3.0 |
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| S Oct 5, 2015 at 8:14 | history | bounty ended | PolyGeo♦ | ||
| S Oct 5, 2015 at 8:14 | history | notice removed | PolyGeo♦ | ||
| Oct 1, 2015 at 18:51 | answer | added | yanes | timeline score: 2 | |
| Oct 1, 2015 at 11:02 | comment | added | Farid Cheraghi | Where can we download the vector layer to testing? | |
| Sep 29, 2015 at 20:29 | comment | added | mkennedy | @Matej, It didn't query me. Is your browser set up to send user: anonymous, password: email_address? If you still can't access it, send me an email (mkennedy at esri dot com) and I'll send them to you. | |
| Sep 29, 2015 at 20:22 | comment | added | Matej | @mkennedy: The link above requires authentication. | |
| Sep 29, 2015 at 20:16 | comment | added | mkennedy | I may be wrong about the coordinate system because readme2.txt and the files that list the cell coordinates show an origin at approximately: 40.0451N 129.8530W, yet projection is "true" at 60N. | |
| Sep 29, 2015 at 20:13 | comment | added | mkennedy | @Matej ftp.ccrs.nrcan.gc.ca/ad/EMS/Anita/DATA/CANGRID/original_files (be sure to read readme2.txt) | |
| Sep 29, 2015 at 18:58 | answer | added | Matej | timeline score: 1 | |
| Sep 29, 2015 at 17:40 | comment | added | Matej | the metadata file refers to the grid_pnt_lls.txt. Where can I see this file? | |
| S Sep 29, 2015 at 7:52 | history | bounty started | PolyGeo♦ | ||
| S Sep 29, 2015 at 7:52 | history | notice added | PolyGeo♦ | Draw attention | |
| S Oct 17, 2014 at 22:42 | history | bounty ended | CommunityBot | ||
| S Oct 17, 2014 at 22:42 | history | notice removed | CommunityBot | ||
| Oct 10, 2014 at 15:54 | comment | added | jsnider | @user30184 - thanks, yes, the linear unit in the projection is 50000m. Alternatively, you could modify the linear unit in the projection to be "Meters, 1.0" and then set the cell size in the geotransform to 50000. | |
| Oct 10, 2014 at 14:25 | comment | added | user30184 | Just a detail because I do not understand the whole picture. I suppose that instead of xres = 1 and yres = -1 you should give GDAL the pixel size, xres = 50000 yres = -50000. | |
| Oct 9, 2014 at 22:42 | history | edited | jsnider | CC BY-SA 3.0 |
edit for accuracy
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| Oct 9, 2014 at 22:04 | history | tweeted | twitter.com/#!/StackGIS/status/520334010996629504 | ||
| Oct 9, 2014 at 21:25 | comment | added | jsnider | Thanks @whuber.To be clear, you're suggesting the Warp from File approach in ArcGIS Desktop, and that I should calculate to and from coordinates for each grid location? | |
| Oct 9, 2014 at 21:22 | history | edited | jsnider | CC BY-SA 3.0 |
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| Oct 9, 2014 at 21:02 | comment | added | whuber | The metadata note that "The file grid_pnt_lls.txt lists the lat/longs for each x/y (0,0 = SW corner of grid)." With this file in hand you could reproject this grid to any coordinate system you want and go on from there. | |
| S Oct 9, 2014 at 20:56 | history | bounty started | jsnider | ||
| S Oct 9, 2014 at 20:56 | history | notice added | jsnider | Draw attention | |
| Oct 9, 2014 at 20:50 | history | edited | jsnider | CC BY-SA 3.0 |
Updated to add info on extent
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| Oct 4, 2014 at 1:14 | history | edited | jsnider | CC BY-SA 3.0 |
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| Oct 3, 2014 at 20:57 | comment | added | jsnider | No luck so far by modifying the standard parallel on either WKID 3995 or 3413, unfortunately. Any other suggestions would be hugely appreciated! | |
| Oct 3, 2014 at 20:41 | comment | added | mkennedy | No, you need one where the projection (method) is Stereographic_North_Pole. I don't think we have the exact PCS; try modifying from 3995 or 3413. | |
| Oct 3, 2014 at 20:33 | comment | added | jsnider | Thanks @mkennedy - do you mean the "North Pole Stereographic" proj (WKID 102018)? I've set the latitude of origin and central meridian values using this projection and still have the same issue. Perhaps you are referring to another projection? | |
| Oct 3, 2014 at 19:52 | comment | added | mkennedy | If you're using ArcGIS, switch to Stereographic North Pole and set the standard parallel to 60.0. The ArcGIS stereographic implementation uses a scale factor rather than a standard parallel because the proj can be centered anywhere. | |
| Oct 3, 2014 at 18:10 | history | edited | jsnider | CC BY-SA 3.0 |
Added link to data file
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| Oct 3, 2014 at 14:08 | history | edited | jsnider | CC BY-SA 3.0 |
Added projection info input geotransform values
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| Oct 3, 2014 at 1:51 | history | edited | jsnider | CC BY-SA 3.0 |
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| Oct 3, 2014 at 1:39 | history | edited | jsnider | CC BY-SA 3.0 |
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| Oct 2, 2014 at 22:40 | history | edited | PolyGeo♦ |
edited tags
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| Oct 2, 2014 at 22:26 | history | asked | jsnider | CC BY-SA 3.0 |