Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/ZoomScale.java @ 8723:686d8876edf9
(issue1754) Fix Radius calculation for filtered (smoothed) facets
To know the acutal extend of the Domain axis shown we need
to know all data in the diagram as the acutal extend is
the data point needed to calculate a Radius confusingly configured
in zoom-scales we have to add all data first and
then add the real filtered facets in a postprocessing step.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 29 Apr 2015 11:56:04 +0200 |
parents | 421e5cceac84 |
children | 0a5239a1e46e |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.model; import java.util.HashMap; import java.util.Map; import java.util.Set; import java.util.TreeMap; import org.apache.log4j.Logger; import org.dive4elements.river.artifacts.math.Linear; /** Has to do with adaptive smoothing based on current diagram extent. */ public class ZoomScale { private static Logger log = Logger.getLogger(ZoomScale.class); private HashMap<String, TreeMap<Double, Double>> rivers; public ZoomScale() { this.rivers = new HashMap<String, TreeMap<Double, Double>>(); } public ZoomScale(String river) { this(); rivers.put(river, new TreeMap<Double, Double>()); } public double getRadius(String river, double lower, double upper) { if (lower > upper) { double buf = lower; lower = upper; upper = buf; } double range = Math.abs(upper) - Math.abs(lower); TreeMap<Double, Double> ranges = rivers.get(river); if (ranges == null) { TreeMap<Double, Double> defaultRanges = rivers.get("default"); if (defaultRanges == null) { return 0.001; } ranges = defaultRanges; } Map.Entry<Double, Double> next = ranges.higherEntry(range); Map.Entry<Double, Double> prev = ranges.lowerEntry(range); double x0 = 0d; double x1 = 0d; double y0 = 0d; double y1 = 0d; if (prev == null && next != null) { x1 = next.getKey(); y1 = next.getValue(); } else if (prev != null && next == null) { return prev.getValue(); } else { x0 = prev.getKey(); x1 = next.getKey(); y0 = prev.getValue(); y1 = next.getValue(); } return Linear.linear(range, x0, x1, y0, y1); } public void addRiver(String river) { if (!this.rivers.containsKey(river)) { this.rivers.put(river, new TreeMap<Double, Double>()); } } public Set<String> getRivers() { return this.rivers.keySet(); } public void addRange(String river, double range, double radius) { if (this.rivers.containsKey(river)) { this.rivers.get(river).put(range, radius); } else { this.rivers.put(river, new TreeMap<Double, Double>()); this.rivers.get(river).put(range, radius); } } }