Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/DoubleUtil.java @ 3428:842b7b635701

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use a new state - specific for SQ relation - for the period input in the SQ relation. flys-artifacts/trunk@5086 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 20 Jul 2012 10:22:38 +0000
parents 0dd58ab7e118
children 1ddbf66a2b0a
rev   line source
655
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.utils;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
1666
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
3 import java.util.Arrays;
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
4
1671
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
5 import de.intevation.flys.artifacts.math.Linear;
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
6
1666
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
7
655
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 public class DoubleUtil
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 public static final double DEFAULT_STEP_PRECISION = 1e6;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12 private DoubleUtil() {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15 public static final double [] explode(double from, double to, double step) {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 return explode(from, to, step, DEFAULT_STEP_PRECISION);
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 public static final double round(double x, double precision) {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 return Math.round(x * precision)/precision;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 public static final double round(double x) {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 return Math.round(x * DEFAULT_STEP_PRECISION)/DEFAULT_STEP_PRECISION;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27 public static final double [] explode(
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 double from,
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 double to,
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30 double step,
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31 double precision
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32 ) {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 double lower = from;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
35 double diff = to - from;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36 double tmp = diff / step;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37 int num = (int)Math.abs(Math.ceil(tmp)) + 1;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
39 double [] values = new double[num];
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 if (from > to) {
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
42 step = -step;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44
1666
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
45 double max = Math.max(from, to);
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
46
655
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 for (int idx = 0; idx < num; idx++) {
1666
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
48 if (lower > max) {
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
49 return Arrays.copyOfRange(values, 0, idx);
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
50 }
09c1292cf36d Bugfix: #351 Modified determination of single values specified by min/max values and an interval.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 655
diff changeset
51
655
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52 values[idx] = round(lower, precision);
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
53 lower += step;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
54 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56 return values;
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57 }
1671
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
58
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
59 public static final double interpolateSorted(
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
60 double [] xs,
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
61 double [] ys,
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
62 double x
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
63 ) {
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
64 int lo = 0, hi = xs.length-1;
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
65
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
66 int mid = -1;
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
67
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
68 while (lo <= hi) {
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
69 mid = (lo + hi) >> 1;
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
70 double mx = xs[mid];
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
71 if (x < mx) hi = mid - 1;
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
72 else if (x > mx) lo = mid + 1;
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
73 else return ys[mid];
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
74 }
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
75 if (mid < lo) {
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
76 return lo >= xs.length
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
77 ? Double.NaN
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
78 : Linear.linear(x, xs[mid], xs[mid+1], ys[mid], ys[mid+1]);
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
79 }
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
80 return hi < 0
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
81 ? Double.NaN
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
82 : Linear.linear(x, xs[mid-1], xs[mid], ys[mid-1], ys[mid]);
da872168a899 Added code to interpolate double values in a sorted array
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1666
diff changeset
83 }
1672
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
84
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
85 public static final boolean isIncreasing(double [] array) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
86 int inc = 0;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
87 int dec = 0;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
88 int sweet = (array.length-1)/2;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
89 for (int i = 1; i < array.length; ++i) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
90 if (array[i] > array[i-1]) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
91 if (++inc > sweet) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
92 return true;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
93 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
94 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
95 else if (++dec > sweet) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
96 return false;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
97 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
98 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
99 return inc > sweet;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
100 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
101
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
102 public static final double [] swap(double [] array) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
103 int lo = 0;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
104 int hi = array.length-1;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
105 while (hi > lo) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
106 double t = array[lo];
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
107 array[lo] = array[hi];
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
108 array[hi] = t;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
109 ++lo;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
110 --hi;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
111 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
112
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
113 return array;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
114 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
115
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
116 public static final double [] swapClone(double [] in) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
117 double [] out = new double[in.length];
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
118
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
119 for (int j = out.length-1, i = 0; j >= 0;) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
120 out[j--] = in[i++];
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
121 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
122
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
123 return out;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
124 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
125
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
126 public static final double [] sumDiffs(double [] in) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
127 double [] out = new double[in.length];
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
128
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
129 for (int i = 1; i < out.length; ++i) {
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
130 out[i] = out[i-1] + Math.abs(in[i-1] - in[i]);
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
131 }
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
132
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
133 return out;
0b6dac664bbb Moved some generic double array code from BackjumpCorrector to DoubleUtil
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1671
diff changeset
134 }
2569
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1672
diff changeset
135
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1672
diff changeset
136 public static final double [] fill(int N, double value) {
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1672
diff changeset
137 double [] result = new double[N];
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1672
diff changeset
138 Arrays.fill(result, value);
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1672
diff changeset
139 return result;
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1672
diff changeset
140 }
655
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
141 }
913b52064449 Refactored version of "Berechnung 4"
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org