Mercurial > dive4elements > gnv-client
diff gnv-artifacts/src/main/java/de/intevation/gnv/raster/ExternalIndexConverter.java @ 484:823e4f808418
Generate JTS geometries (multi polygons and multi linestrings) from
interpolation with external palette indices.
gnv-artifacts/trunk@559 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
---|---|
date | Mon, 18 Jan 2010 11:25:52 +0000 |
parents | |
children | c4156275c1e1 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/raster/ExternalIndexConverter.java Mon Jan 18 11:25:52 2010 +0000 @@ -0,0 +1,44 @@ +package de.intevation.gnv.raster; + +import org.apache.log4j.Logger; + +/** + * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) + */ +public class ExternalIndexConverter +implements JTSMultiPolygonProducer.ValueConverter +{ + private static Logger log = Logger.getLogger( + ExternalIndexConverter.class); + + protected Palette palette; + + public ExternalIndexConverter() { + } + + public ExternalIndexConverter(Palette palette) { + this.palette = palette; + } + + 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 :