Mercurial > dive4elements > river
diff flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java @ 720:d60cc6453d45
#161 Include the 0 on the second y axis (the Q axis) in longitudinal section charts intially.
flys-artifacts/trunk@2194 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 22 Jun 2011 06:51:36 +0000 |
parents | 035c0095b427 |
children | 56d70e546800 |
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--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java Tue Jun 21 21:41:49 2011 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java Wed Jun 22 06:51:36 2011 +0000 @@ -10,6 +10,7 @@ import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.chart.title.TextTitle; +import org.jfree.data.Range; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; @@ -159,6 +160,23 @@ /** + * This method overrides the XYChartGenerators zoomY method to include the 0 + * value on the Q axis. + */ + @Override + protected boolean zoomY(XYPlot plot, ValueAxis axis, Range range, Range x) { + boolean zoomin = super.zoomY(plot, axis, range, x); + + // we want the Q axis to start at 0 if no zooming has been done + if (!zoomin && plot.getRangeAxisIndex(axis) == 1) { + axis.setLowerBound(0d); + } + + return zoomin; + } + + + /** * This method inverts the x-axis based on the kilometer information of the * selected river. If the head of the river is at kilometer 0, the axis is * not inverted, otherwise it is.