Mercurial > dive4elements > river
changeset 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 | 6f5fc3de0d48 |
| children | 9e9eb9d97548 |
| files | flys-artifacts/ChangeLog flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Lines.java |
| diffstat | 2 files changed, 15 insertions(+), 0 deletions(-) [+] |
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--- a/flys-artifacts/ChangeLog Thu Apr 26 10:45:25 2012 +0000 +++ b/flys-artifacts/ChangeLog Thu Apr 26 13:38:56 2012 +0000 @@ -1,3 +1,8 @@ +2012-04-26 Sascha L. Teichmann <sascha.teichmann@intevation.de> + + * src/main/java/de/intevation/flys/artifacts/geom/Lines.java: + Add method to calculate length of water lines. + 2012-04-26 Felix Wolfsteller <felix.wolfsteller@intevation.de> Most of issue454: Label waterlevels.
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Lines.java Thu Apr 26 10:45:25 2012 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Lines.java Thu Apr 26 13:38:56 2012 +0000 @@ -24,6 +24,16 @@ protected Lines() { } + public static double length(List<Line2D> lines) { + double sum = 0d; + for (Line2D line: lines) { + double xDiff = line.getX1() - line.getX2(); + double yDiff = line.getY1() - line.getY2(); + sum += Math.sqrt(xDiff*xDiff + yDiff*yDiff); + } + return sum; + } + public static List<Line2D> fillWater(List<Point2D> points, double waterLevel) { boolean debug = log.isDebugEnabled();