Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Lines.java @ 2650:a6fa128e4654
Add method to calculate length of water lines.
flys-artifacts/trunk@4311 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Thu, 26 Apr 2012 13:38:56 +0000 |
| parents | a7def20539fb |
| children | 9d2a06c3a134 |
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| 2649:6f5fc3de0d48 | 2650:a6fa128e4654 |
|---|---|
| 20 public static final double EPSILON = 1e-4; | 20 public static final double EPSILON = 1e-4; |
| 21 | 21 |
| 22 public static enum Mode { UNDEF, WET, DRY }; | 22 public static enum Mode { UNDEF, WET, DRY }; |
| 23 | 23 |
| 24 protected Lines() { | 24 protected Lines() { |
| 25 } | |
| 26 | |
| 27 public static double length(List<Line2D> lines) { | |
| 28 double sum = 0d; | |
| 29 for (Line2D line: lines) { | |
| 30 double xDiff = line.getX1() - line.getX2(); | |
| 31 double yDiff = line.getY1() - line.getY2(); | |
| 32 sum += Math.sqrt(xDiff*xDiff + yDiff*yDiff); | |
| 33 } | |
| 34 return sum; | |
| 25 } | 35 } |
| 26 | 36 |
| 27 public static List<Line2D> fillWater(List<Point2D> points, double waterLevel) { | 37 public static List<Line2D> fillWater(List<Point2D> points, double waterLevel) { |
| 28 | 38 |
| 29 boolean debug = log.isDebugEnabled(); | 39 boolean debug = log.isDebugEnabled(); |