Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/LinearRemap.java @ 636:58276db49b16

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Generate fields for w/q input depend on flow direction. flys-artifacts/trunk@2012 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 26 May 2011 15:55:48 +0000
parents 343f248e4c8c
children f0c1250d1e7b
rev   line source
427
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.artifacts.math;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
452
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
3 import org.apache.log4j.Logger;
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
4
427
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 public class LinearRemap
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 {
452
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
7 private static Logger logger = Logger.getLogger(LinearRemap.class);
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
8
427
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 public static class Segment {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 protected Segment next;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13 protected double from;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 protected double to;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 protected double m;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 protected double b;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 public Segment() {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 public Segment(
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 double from, double to,
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 double m, double b,
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25 Segment next
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26 ) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27 this.from = from;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 this.to = to;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 this.m = m;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30 this.b = b;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 public double eval(double x) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34 return m*x + b;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
35 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36 } // class Segment
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38 protected Segment head;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
39
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40 public LinearRemap() {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
42
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 public void add(
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44 double from, double to,
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45 double x1, double y1,
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46 double x2, double y2
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 ) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48 // y1 = m*x1 + b <=> b = y1 - m*x1
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 // y2 = m*x2 + b
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50 // y2 - y1 = m*(x2 - x1)
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51 // m = (y2 - y1)/(x2 - x1)
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
53 double m, b;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
54
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55 if (x2 == x1) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56 m = 0.0;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57 b = 0.5*(y2 + y1);
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
58 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
59 else {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
60 m = (y2 - y1)/(x2 - x1);
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
61 b = y1 - m*x1;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
62 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
63
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
64 head = new Segment(from, to, m, b, head);
452
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
65
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
66 if (logger.isDebugEnabled()) {
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
67 logger.debug("LinearRemap.add --------- enter");
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
68 logger.debug(" range: [" + from + ", " + to + "]");
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
69 logger.debug(" " + x1 + " -> " + y1 + " (" + head.eval(x1) + ")");
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
70 logger.debug(" " + x2 + " -> " + y2 + " (" + head.eval(x2) + ")");
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
71 logger.debug("LinearRemap.add --------- leave");
343f248e4c8c use correct kms and step width now now
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 427
diff changeset
72 }
427
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
73 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
74
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
75 public double eval(double pos, double x) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
76 Segment current = head;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
77
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
78 while (current != null) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
79
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
80 if (pos >= current.from && pos <= current.to) {
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
81 return current.eval(x);
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
82 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84 current = current.next;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
85 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
86
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
87 return Double.NaN;
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
88 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
89 }
909196be11a0 First step to calculate "W fuer ungleichwertige Abfluesse" correctly. flys/issue55
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
90 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org