polynomial 1 = affine, i.e. translation, rotation and scaling
polynomial n = adds curvature, where n defines how much curvature can be allowed
using polynomial 1 should be rather straighforward, please doublecheck the GCPs, weird results are usually due to them.
Maxim
Вы писали 21 сентября 2009 г., 10:39:41:
| Hi Maxim I wanted to use the helmert method because I know what helmert is doing (or at least I think I know it :-)). Is there any information about polynomial 1,2,3? I used polynomial 1 and I get strange results (but I have to check also my GCPs) Stefan > -----Ursprüngliche Nachricht----- > Von: Maxim Dubinin [mailto:[email protected]] > Gesendet am: Montag, 21. September 2009 17:28 > An: Ziegler Stefan > Betreff: Re: [Qgis-user] Georeferencer plugin and helmert method > > Hi Stefan, > > Are you sure you need it? Please try polynomials, they are > much better. > > Helmert transformation is a leftover from long time before > and need to be removed from Georeferencer. > > Maxim > > ?? ?????? 21 ???????? 2009 ?., 3:58:00: > > ZS> Hi > > ZS> I'm trying to use the helmert transform method in the > ZS> georeferencer plugin. QGIS (code revision 11761) crashes after > ZS> hitting the ok button of the "A Helmert transform requires ...." > ZS> message box. All the other methods are working. > ZS> Is anybody using the helmert method with success? > > ZS> regards > ZS> Stefan > > > ZS> _______________________________________________ > ZS> Qgis-user mailing list > ZS> [email protected] > ZS> http://lists.osgeo.org/mailman/listinfo/qgis-user > > |
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