Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/utils/DoubleUtil.java @ 3776:1ddbf66a2b0a
Implemented the access for 'Auslagerung extremer Wasserspiegellagen'
flys-artifacts/trunk@5483 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Sun, 16 Sep 2012 17:55:10 +0000 |
| parents | 0dd58ab7e118 |
| children | a5f65e8983be |
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| 3775:d52c4ca93ffb | 3776:1ddbf66a2b0a |
|---|---|
| 1 package de.intevation.flys.utils; | 1 package de.intevation.flys.utils; |
| 2 | |
| 3 import de.intevation.flys.artifacts.math.Linear; | |
| 4 | |
| 5 import gnu.trove.TDoubleArrayList; | |
| 2 | 6 |
| 3 import java.util.Arrays; | 7 import java.util.Arrays; |
| 4 | 8 |
| 5 import de.intevation.flys.artifacts.math.Linear; | 9 import org.apache.log4j.Logger; |
| 6 | |
| 7 | 10 |
| 8 public class DoubleUtil | 11 public class DoubleUtil |
| 9 { | 12 { |
| 13 private static Logger log = Logger.getLogger(DoubleUtil.class); | |
| 14 | |
| 10 public static final double DEFAULT_STEP_PRECISION = 1e6; | 15 public static final double DEFAULT_STEP_PRECISION = 1e6; |
| 11 | 16 |
| 12 private DoubleUtil() { | 17 private DoubleUtil() { |
| 13 } | 18 } |
| 14 | 19 |
| 136 public static final double [] fill(int N, double value) { | 141 public static final double [] fill(int N, double value) { |
| 137 double [] result = new double[N]; | 142 double [] result = new double[N]; |
| 138 Arrays.fill(result, value); | 143 Arrays.fill(result, value); |
| 139 return result; | 144 return result; |
| 140 } | 145 } |
| 146 | |
| 147 public interface SegmentCallback { | |
| 148 void newSegment(double from, double to, double [] values); | |
| 149 } | |
| 150 | |
| 151 public static final void parseSegments( | |
| 152 String input, | |
| 153 SegmentCallback callback | |
| 154 ) { | |
| 155 TDoubleArrayList vs = new TDoubleArrayList(); | |
| 156 | |
| 157 for (String segmentStr: input.split(":")) { | |
| 158 String [] parts = segmentStr.split(";"); | |
| 159 if (parts.length < 3) { | |
| 160 log.warn("invalid segment: '" + segmentStr + "'"); | |
| 161 continue; | |
| 162 } | |
| 163 try { | |
| 164 double from = Double.parseDouble(parts[0].trim()); | |
| 165 double to = Double.parseDouble(parts[1].trim()); | |
| 166 | |
| 167 vs.resetQuick(); | |
| 168 | |
| 169 for (String valueStr: parts[2].split(",")) { | |
| 170 vs.add(round(Double.parseDouble(valueStr.trim()))); | |
| 171 } | |
| 172 | |
| 173 callback.newSegment(from, to, vs.toNativeArray()); | |
| 174 } | |
| 175 catch (NumberFormatException nfe) { | |
| 176 log.warn("invalid segment: '" + segmentStr + "'"); | |
| 177 } | |
| 178 } | |
| 179 } | |
| 141 } | 180 } |
| 142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 181 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |