Mercurial > dive4elements > river
changeset 3247:638b1da85450
New ChartHelper method to expand bounds added.
flys-artifacts/trunk@4880 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
|---|---|
| date | Fri, 06 Jul 2012 09:36:03 +0000 |
| parents | 229e9b27ce15 |
| children | 4eb91fb1e73e |
| files | flys-artifacts/ChangeLog flys-artifacts/src/main/java/de/intevation/flys/exports/ChartHelper.java |
| diffstat | 2 files changed, 28 insertions(+), 1 deletions(-) [+] |
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--- a/flys-artifacts/ChangeLog Fri Jul 06 09:34:51 2012 +0000 +++ b/flys-artifacts/ChangeLog Fri Jul 06 09:36:03 2012 +0000 @@ -1,3 +1,8 @@ +2012-07-07 Felix Wolfsteller <felix.wolfsteller@intevation.de> + + * src/main/java/de/intevation/flys/exports/ChartHelper.java + (expandBounds): New, expand bounds by given percentage. + 2012-07-07 Felix Wolfsteller <felix.wolfsteller@intevation.de> * src/main/java/de/intevation/flys/artifacts/math/Distance.java:
--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/ChartHelper.java Fri Jul 06 09:34:51 2012 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/ChartHelper.java Fri Jul 06 09:36:03 2012 +0000 @@ -155,12 +155,34 @@ /** + * Expand bounds by percent. + * + * @param bounds The bounds to expand. + * @param percent The percentage to expand. + * + * @param a new, expanded bounds. + */ + public static Bounds expandBounds(Bounds bounds, double percent) { + if (bounds == null) { + return null; + } + + double value = (Double) bounds.getLower(); + double expand = Math.abs(value / 100 * percent); + + return expand != 0 + ? new DoubleBounds(value-expand, value+expand) + : new DoubleBounds(-0.01 * percent, 0.01 * percent); + } + + + /** * Expand range by percent. * * @param range The range to expand. * @param percent The percentage to expand. * - * @param an expanded range. + * @param a new, expanded range. */ public static Range expandRange(Range range, double percent) { if (range == null) {