Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/KMIndex.java @ 4798:39885bdfc6fc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added calculation of the "Umhuellende" to calculation of "W fuer ungleichwertige Abfluesse". This is done by figuring out the WST columns that imfold the data and then do simple "gleichwertige" calculations from the start of the interval. This is too much because only the Qs are needed for the "Umhuellende".
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 13 Jan 2013 16:18:28 +0100
parents 46511b4d8357
children
rev   line source
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.utils;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 import java.util.ArrayList;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4 import java.util.Collections;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 import java.util.List;
3026
65b6e27c6f25 FixA: Use new data structures in Delta W(t) exporter. Removed obsolete code.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3013
diff changeset
6 import java.util.Iterator;
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 import java.io.Serializable;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9
4318
46511b4d8357 KMIndex: Minor doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 3158
diff changeset
10 /** km to value, searchable. Tolerance is at 10cm. */
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 public class KMIndex<A>
3026
65b6e27c6f25 FixA: Use new data structures in Delta W(t) exporter. Removed obsolete code.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3013
diff changeset
12 implements Serializable, Iterable<KMIndex.Entry<A>>
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13 {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 public static final double EPSILON = 1e-4;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 public static class Entry<A>
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 implements Serializable, Comparable<Entry<A>>
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18 {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 protected double km;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 protected A value;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 public Entry(double km) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 this.km = km;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26 public Entry(double km, A value) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27 this.km = km;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 this.value = value;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31 public double getKm() {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32 return km;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
35 public A getValue() {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36 return value;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
39 public void setValue(A value) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40 this.value = value;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
42
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 @Override
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44 public int compareTo(Entry<A> other) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45 double diff = km - other.km;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46 if (diff < -EPSILON) return -1;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 if (diff > +EPSILON) return +1;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48 return 0;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51 public boolean epsilonEquals(double km) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52 return Math.abs(this.km - km) < EPSILON;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
53 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
54 } // class Entry
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57 protected List<Entry<A>> entries;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
58
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
59 public KMIndex() {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
60 this(10);
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
61 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
62
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
63 public KMIndex(int capacity) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
64 entries = new ArrayList<Entry<A>>(capacity);
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
65 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
66
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
67 public void add(double km, A value) {
3158
0e8929d5e9e3 Use generics more correctly
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3026
diff changeset
68 entries.add(new Entry<A>(km, value));
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
69 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
70
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
71 public void sort() {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
72 Collections.sort(entries);
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
73 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
74
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
75 public Entry<A> search(double km) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
76 for (Entry<A> entry: entries) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
77 if (entry.epsilonEquals(km)) {
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
78 return entry;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
79 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
80 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
81 return null;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
82 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84 public Entry<A> binarySearch(double km) {
3158
0e8929d5e9e3 Use generics more correctly
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3026
diff changeset
85 int index = Collections.binarySearch(entries, new Entry<A>(km));
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
86 return index >= 0 ? entries.get(index) : null;
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
87 }
3026
65b6e27c6f25 FixA: Use new data structures in Delta W(t) exporter. Removed obsolete code.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3013
diff changeset
88
65b6e27c6f25 FixA: Use new data structures in Delta W(t) exporter. Removed obsolete code.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3013
diff changeset
89 public Iterator<Entry<A>> iterator() {
65b6e27c6f25 FixA: Use new data structures in Delta W(t) exporter. Removed obsolete code.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3013
diff changeset
90 return entries.iterator();
65b6e27c6f25 FixA: Use new data structures in Delta W(t) exporter. Removed obsolete code.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3013
diff changeset
91 }
3013
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
92 }
ba62c1751f07 FixA: Added new serializable km inedx structure.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
93 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org