Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/math/AreaInterpolation.java @ 808:2e951160c43d
Finished the javadoc of the math package.
gnv-artifacts/trunk@890 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Thu, 08 Apr 2010 16:35:02 +0000 |
| parents | d766fe2d917a |
| children | 22c18083225e |
comparison
equal
deleted
inserted
replaced
| 807:a645bd23c1c8 | 808:2e951160c43d |
|---|---|
| 13 import java.util.List; | 13 import java.util.List; |
| 14 | 14 |
| 15 import org.apache.log4j.Logger; | 15 import org.apache.log4j.Logger; |
| 16 | 16 |
| 17 /** | 17 /** |
| 18 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | 18 * Does an area interpolation for "Horizontalschnitte". |
| 19 * | |
| 20 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 19 */ | 21 */ |
| 20 public class AreaInterpolation | 22 public class AreaInterpolation |
| 21 implements Serializable | 23 implements Serializable |
| 22 { | 24 { |
| 23 private static Logger log = Logger.getLogger(AreaInterpolation.class); | 25 private static Logger log = Logger.getLogger(AreaInterpolation.class); |
| 24 | 26 |
| 27 /** | |
| 28 * The generated raster. | |
| 29 */ | |
| 25 protected double [] raster; | 30 protected double [] raster; |
| 26 | 31 |
| 32 /** | |
| 33 * The width of the raster. | |
| 34 */ | |
| 27 protected int width; | 35 protected int width; |
| 36 /** | |
| 37 * The height of the raster. | |
| 38 */ | |
| 28 protected int height; | 39 protected int height; |
| 29 | 40 |
| 41 /** | |
| 42 * Default constructor. | |
| 43 */ | |
| 30 public AreaInterpolation() { | 44 public AreaInterpolation() { |
| 31 } | 45 } |
| 32 | 46 |
| 47 /** | |
| 48 * Returns the width of the generated raster. | |
| 49 * @return the width of the raster. | |
| 50 */ | |
| 33 public int getWidth() { | 51 public int getWidth() { |
| 34 return width; | 52 return width; |
| 35 } | 53 } |
| 36 | 54 |
| 55 /** | |
| 56 * Returns the height of the raster. | |
| 57 * @return The height of the raster. | |
| 58 */ | |
| 37 public int getHeight() { | 59 public int getHeight() { |
| 38 return height; | 60 return height; |
| 39 } | 61 } |
| 40 | 62 |
| 63 /** | |
| 64 * The generated raster. | |
| 65 * @return | |
| 66 */ | |
| 41 public double [] getRaster() { | 67 public double [] getRaster() { |
| 42 return raster; | 68 return raster; |
| 43 } | 69 } |
| 44 | 70 |
| 71 /** | |
| 72 * Epsilon for numerical stability. | |
| 73 */ | |
| 45 public static final double EPS = 1e-6d; | 74 public static final double EPS = 1e-6d; |
| 46 | 75 |
| 47 | 76 |
| 77 /** | |
| 78 * Fills a raster by interpolating the input values. | |
| 79 * @param points The attributed input values. | |
| 80 * @param boundingBox The world area where to interpolate. | |
| 81 * @param samples The width and height of the raster. | |
| 82 * @param depth The callback to query the depth at a given point. | |
| 83 * @param extrapolationRounds Number of extrapolation point layers | |
| 84 * to generate before doing the interpolation. | |
| 85 * @return true if the interpolation succeeds else false. | |
| 86 */ | |
| 48 public boolean interpolate( | 87 public boolean interpolate( |
| 49 List<? extends Point2d> points, | 88 List<? extends Point2d> points, |
| 50 Envelope boundingBox, | 89 Envelope boundingBox, |
| 51 Dimension samples, | 90 Dimension samples, |
| 52 XYDepth depth, | 91 XYDepth depth, |