Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeries.java @ 640:e5f1e868ee3e
Implementedr histogram pdf export.
gnv-artifacts/trunk@726 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 03 Mar 2010 13:44:15 +0000 |
parents | 92b7ccbf6163 |
children | b1f5f2a8840f |
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package de.intevation.gnv.jfreechart; import java.util.Map; import java.util.HashMap; import org.jfree.data.Range; import org.jfree.data.general.Series; /** * @author Sascha Teichmann <sascha.teichmann@intevation.de> * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> */ public class PolygonSeries extends Series { protected CompactXYItems [] rings; protected Map attributes; private static long uniqueKey; protected synchronized static Long createUniqueKey() { return new Long(uniqueKey++); } public PolygonSeries() { this(createUniqueKey(), null); } public PolygonSeries(Comparable key, CompactXYItems [] rings) { this(key, null, rings, new HashMap()); } public PolygonSeries( Comparable key, String description, CompactXYItems[] rings ) { this(key, description, rings, new HashMap()); } public PolygonSeries( Comparable key, String description, CompactXYItems [] rings, Map attributes ) { super(key, description); this.rings = rings; this.attributes = attributes; } public void setRings(CompactXYItems [] rings) { this.rings = rings; } public CompactXYItems [] getRings() { return rings; } public void addRing(CompactXYItems newRing) { if (rings == null) { rings = new CompactXYItems [] { newRing }; } else { CompactXYItems [] nRings = new CompactXYItems[rings.length + 1]; System.arraycopy(rings, 0, nRings, 0, rings.length); nRings[rings.length] = newRing; rings = nRings; } } public void addRings(CompactXYItems [] newRings) { if (newRings == null || newRings.length == 0) { return; } if (rings == null || rings.length == 0) { rings = newRings; } else { CompactXYItems [] both = new CompactXYItems[rings.length + newRings.length]; System.arraycopy(rings, 0, both, 0, rings.length); System.arraycopy(newRings, 0, both, rings.length, newRings.length); rings = both; } } public Object getAttribute(Object key) { return attributes.get(key); } public Object setAttribute(Object key, Object value) { return attributes.put(key, value); } public int getItemCount() { return rings != null ? rings.length : 0; } public CompactXYItems getItem(int idx) { return rings[idx]; } public Object removeAttribute(Object key) { return attributes.remove(key); } public boolean hasAttribute(Object key) { return attributes.containsKey(key); } public Range getDomainBounds() { double upper = Double.NEGATIVE_INFINITY; double lower = Double.POSITIVE_INFINITY; int count = getItemCount(); for (int i = 0; i < count; i++) { CompactXYItems items = getItem(i); double minX = items.getMinX(); double maxX = items.getMaxX(); if (!Double.isNaN(minX)) { lower = Math.min(lower, minX); } if (!Double.isNaN(maxX)) { upper = Math.max(upper, maxX); } } if (lower > upper) { return null; } return new Range(lower, upper); } public Range getRangeBounds() { double upper = Double.NEGATIVE_INFINITY; double lower = Double.POSITIVE_INFINITY; int count = getItemCount(); for (int i = 0; i < count; i++) { CompactXYItems items = getItem(i); double minY = items.getMinY(); double maxY = items.getMaxY(); if (!Double.isNaN(minY)) { lower = Math.min(lower, minY); } if (!Double.isNaN(maxY)) { upper = Math.max(upper, maxY); } } if (lower > upper) { return null; } return new Range(lower, upper); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :