Mercurial > dive4elements > river

comparison artifacts/src/main/java/org/dive4elements/river/utils/DoubleUtil.java @ 8856:5e38e2924c07 3.2.x

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Fix code style.
author Tom Gottfried <tom@intevation.de>
date Thu, 18 Jan 2018 20:12:01 +0100
parents b486812f4f14
children 8aa1605e58f1 0a5239a1e46e
comparison
equal deleted inserted replaced
8855:d7c005e12af0 8856:5e38e2924c07
47 public static final double EPSILON = 1e-4; 47 public static final double EPSILON = 1e-4;
48 48
49 private DoubleUtil() { 49 private DoubleUtil() {
50 } 50 }
51 51
52 public static final double [] explode(double from, double to, double step) { 52 public static final double [] explode(
53 double from,
54 double to,
55 double step
56 ) {
53 return explode(from, to, step, DEFAULT_STEP_PRECISION); 57 return explode(from, to, step, DEFAULT_STEP_PRECISION);
54 } 58 }
55 59
56 public static final double round(double x, double precision) { 60 public static final double round(double x, double precision) {
57 return Math.round(x * precision)/precision; 61 return Math.round(x * precision)/precision;
60 public static final double round(double x) { 64 public static final double round(double x) {
61 return Math.round(x * DEFAULT_STEP_PRECISION)/DEFAULT_STEP_PRECISION; 65 return Math.round(x * DEFAULT_STEP_PRECISION)/DEFAULT_STEP_PRECISION;
62 } 66 }
63 67
64 /** 68 /**
65 * Returns array with values from parameter from to to with given step width. 69 * Returns array with values from parameter from to to
70 * with given step width.
66 * from and to are included. 71 * from and to are included.
67 */ 72 */
68 public static final double [] explode( 73 public static final double [] explode(
69 double from, 74 double from,
70 double to, 75 double to,
314 } 319 }
315 320
316 /** Convieniance function for results to get an interpolator. 321 /** Convieniance function for results to get an interpolator.
317 * This is basically a static wrapper to for LinearInterpolator.interpolate 322 * This is basically a static wrapper to for LinearInterpolator.interpolate
318 * with error handling. Returns null on error.*/ 323 * with error handling. Returns null on error.*/
319 public static PolynomialSplineFunction getLinearInterpolator(double[] x, double[] y) { 324 public static PolynomialSplineFunction getLinearInterpolator(
320 /* We want copies here to remove NaNs but don't change the original data. */ 325 double[] x,
326 double[] y
327 ) {
328 /* We want copies here to remove NaNs but don't
329 * change the original data. */
321 TDoubleArrayList tX = new TDoubleArrayList(); 330 TDoubleArrayList tX = new TDoubleArrayList();
322 TDoubleArrayList tY = new TDoubleArrayList(); 331 TDoubleArrayList tY = new TDoubleArrayList();
323 for (int i = 0; i < x.length; i++) { 332 for (int i = 0; i < x.length; i++) {
324 if (!Double.isNaN(y[i])) { 333 if (!Double.isNaN(y[i])) {
325 tX.add(x[i]); 334 tX.add(x[i]);
328 } 337 }
329 LinearInterpolator lpol = new LinearInterpolator(); 338 LinearInterpolator lpol = new LinearInterpolator();
330 try { 339 try {
331 return lpol.interpolate(tX.toNativeArray(), tY.toNativeArray()); 340 return lpol.interpolate(tX.toNativeArray(), tY.toNativeArray());
332 } catch (DimensionMismatchException e) { 341 } catch (DimensionMismatchException e) {
333 log.error("KMs and Result values have different sizes. Failed to interpolate: " + 342 log.error("KMs and Result values have different sizes. "
334 e.getMessage()); 343 + "Failed to interpolate: "
344 + e.getMessage());
335 } catch (NonMonotonousSequenceException e) { 345 } catch (NonMonotonousSequenceException e) {
336 log.error("KMs are not monotonous. Failed to interpolate: " + e.getMessage()); 346 log.error("KMs are not monotonous. Failed to interpolate: "
347 + e.getMessage());
337 } catch (NumberIsTooSmallException e) { 348 } catch (NumberIsTooSmallException e) {
338 log.error("Result is to small. Failed to interpolate: " + e.getMessage()); 349 log.error("Result is to small. Failed to interpolate: "
350 + e.getMessage());
339 } 351 }
340 return null; 352 return null;
341 } 353 }
342 354
343 public static PolynomialSplineFunction getLinearInterpolator(TDoubleArrayList x, TDoubleArrayList y) { 355 public static PolynomialSplineFunction getLinearInterpolator(
356 TDoubleArrayList x,
357 TDoubleArrayList y
358 ) {
344 return getLinearInterpolator(x.toNativeArray(), y.toNativeArray()); 359 return getLinearInterpolator(x.toNativeArray(), y.toNativeArray());
345 } 360 }
346 } 361 }
347 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : 362 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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