Mercurial > dive4elements > river
comparison flys-artifacts/ChangeLog @ 343:f165c7d5d6db
Implementation of the "Ruecksprungkorrektur" to be done in "W fuer angepassten Abflusslaengschnitt".
flys-artifacts/trunk@1743 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Fri, 22 Apr 2011 09:57:27 +0000 |
| parents | f72c63713099 |
| children | 79401797f4e1 |
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| 342:f72c63713099 | 343:f165c7d5d6db |
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| 1 2011-04-22 Sascha L. Teichmann <sascha.teichmann@intevation.de> | |
| 2 | |
| 3 * src/main/java/de/intevation/flys/artifacts/math/BackJumpCorrector.java: | |
| 4 | |
| 5 Implementation of the "Ruecksprungkorrektur" to be done in | |
| 6 "W fuer angepassten Abflusslaengschnitt". | |
| 7 | |
| 8 All tests show the expected results. In some corner cases the | |
| 9 algorithm described in the "Anwenderhandbuch" chapter 3.3.4.3 "Korrektur" | |
| 10 has some definition shortcomings: | |
| 11 | |
| 12 a - What should happend when you cannot find point 2 because | |
| 13 you cannot step back one quarter from point 3 because there | |
| 14 is no data there any more (river too short in this direction)? | |
| 15 The implemented algorithm raises point 3' only to an | |
| 16 according factor. E.g. If you can step back the whole quarter | |
| 17 distance the elevation is the full quarter. If you can | |
| 18 step back only the half of the quarter the elevation is | |
| 19 only an eighth. | |
| 20 | |
| 21 b - If the water heights between point 2 and 3 are constant then | |
| 22 the algorithm will produce a spline interpolation that | |
| 23 lowers those values. Is this intended? | |
| 24 | |
| 25 For real data the back jumps are expected to be more in the middle | |
| 26 of the distance ranges so the corner cases are maybe not so | |
| 27 important. | |
| 28 | |
| 29 * src/main/java/de/intevation/flys/artifacts/states/RiverSelect.java: | |
| 30 Removed superfluous import. | |
| 31 | |
| 1 2011-04-21 Ingo Weinzierl <ingo@intevation.de> | 32 2011-04-21 Ingo Weinzierl <ingo@intevation.de> |
| 2 | 33 |
| 3 * src/main/java/de/intevation/flys/themes/ThemeFactory.java: Removed debug | 34 * src/main/java/de/intevation/flys/themes/ThemeFactory.java: Removed debug |
| 4 code that has been commited by accident. | 35 code that has been commited by accident. |
| 5 | 36 |