Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Parameters.java @ 3061:49baebb39305
FixA: Add interpolation of parameters that better suits the instantiation real functions.
flys-artifacts/trunk@4641 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Tue, 12 Jun 2012 08:11:36 +0000 |
| parents | 4f7171ac6153 |
| children | 5642a83420f2 |
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| 3060:94d78e0dc5e9 | 3061:49baebb39305 |
|---|---|
| 175 double [] values | 175 double [] values |
| 176 ) { | 176 ) { |
| 177 return interpolate(columnIndex(columnName), key, values); | 177 return interpolate(columnIndex(columnName), key, values); |
| 178 } | 178 } |
| 179 | 179 |
| 180 public double [] interpolate(int columnIndex, double key, double [] values) { | 180 public double [] interpolate( |
| 181 | 181 int columnIndex, |
| 182 double key, | |
| 183 double [] values | |
| 184 ) { | |
| 182 int row = binarySearch(columnIndex, key, EPSILON); | 185 int row = binarySearch(columnIndex, key, EPSILON); |
| 183 | 186 |
| 184 if (row >= 0) { | 187 if (row >= 0) { |
| 185 for (int i = 0; i < values.length; ++i) { | 188 for (int i = 0; i < values.length; ++i) { |
| 186 values[i] = columns[i].getQuick(row); | 189 values[i] = columns[i].getQuick(row); |
| 202 } | 205 } |
| 203 } | 206 } |
| 204 return values; | 207 return values; |
| 205 } | 208 } |
| 206 | 209 |
| 210 | |
| 211 public double [] interpolate( | |
| 212 String keyName, | |
| 213 double key, | |
| 214 String [] columnNames | |
| 215 ) { | |
| 216 int keyIndex = columnIndex(keyName); | |
| 217 return keyIndex < 0 | |
| 218 ? null | |
| 219 : interpolate(keyIndex, key, columnNames); | |
| 220 } | |
| 221 | |
| 222 public double [] interpolate( | |
| 223 int keyIndex, | |
| 224 double key, | |
| 225 String [] columnNames | |
| 226 ) { | |
| 227 int row = binarySearch(keyIndex, key, EPSILON); | |
| 228 | |
| 229 if (row >= 0) { // direct match | |
| 230 double [] values = new double[columnNames.length]; | |
| 231 for (int i = 0; i < values.length; ++i) { | |
| 232 int ci = columnIndex(columnNames[i]); | |
| 233 values[i] = ci < 0 | |
| 234 ? Double.NaN | |
| 235 : columns[ci].getQuick(row); | |
| 236 } | |
| 237 return values; | |
| 238 } | |
| 239 | |
| 240 row = -row - 1; | |
| 241 if (row < 1 || row >= size()) { // out of bounds | |
| 242 return null; | |
| 243 } | |
| 244 | |
| 245 double v1 = columns[keyIndex].getQuick(row-1); | |
| 246 double v2 = columns[keyIndex].getQuick(row); | |
| 247 double factor = Linear.factor(key, v1, v2); | |
| 248 | |
| 249 double [] values = new double[columnNames.length]; | |
| 250 | |
| 251 for (int i = 0; i < values.length; ++i) { | |
| 252 int ci = columnIndex(columnNames[i]); | |
| 253 values[i] = ci < 0 | |
| 254 ? Double.NaN | |
| 255 : Linear.weight( | |
| 256 factor, | |
| 257 columns[ci].getQuick(row-1), | |
| 258 columns[ci].getQuick(row)); | |
| 259 } | |
| 260 | |
| 261 return values; | |
| 262 } | |
| 263 | |
| 207 public boolean isSorted(String columnName) { | 264 public boolean isSorted(String columnName) { |
| 208 return isSorted(columnIndex(columnName)); | 265 return isSorted(columnIndex(columnName)); |
| 209 } | 266 } |
| 210 | 267 |
| 211 public boolean isSorted(int columnIndex) { | 268 public boolean isSorted(int columnIndex) { |