Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/raster/ExternalIndexConverter.java @ 1052:b30361464775
The pdf format depends on the chart's aspect ratio (issue290).
gnv-artifacts/trunk@1126 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 26 May 2010 06:45:03 +0000 |
parents | feae2f9d6c6f |
children | f953c9a559d8 |
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package de.intevation.gnv.raster; import org.apache.log4j.Logger; /** * Converts the interal color index of a polygon to the external index * defined by the corresponding palette entry. * * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> */ public class ExternalIndexConverter implements JTSMultiPolygonProducer.ValueConverter { private static Logger log = Logger.getLogger( ExternalIndexConverter.class); /** * The palette where to find the color indices. */ protected Palette palette; /** * Default constructor. */ public ExternalIndexConverter() { } /** * Constrcutor to create an ExternalIndexConverter with * a given palette. * @param palette The palette where to find the color indices. */ public ExternalIndexConverter(Palette palette) { this.palette = palette; } /** * Maps the color index of a polygon to the external index * defined by the corresponing palette entry. * @param value The value to convert * @return The mapped value or the original value if * no corresponing palette entry was found. */ public Integer convert(Integer value) { if (value == null) { return value; } int v = value.intValue(); if (v == -1) { return value; } Palette.Entry entry = palette.getEntryByIndex(v); if (entry == null) { log.warn("cannot find palette entry for index: " + v); return value; } return Integer.valueOf(entry.getExternalIndex()); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :