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annotate gnv-artifacts/src/main/java/de/intevation/gnv/raster/IsoAttributeGenerator.java @ 605:e8ebdbc7f1e3

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First step of removing the cache blob. The static part of the describe document will be created by using the input data stored at each state. Some TODOs left (see ChangeLog). gnv-artifacts/trunk@671 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 09 Feb 2010 14:27:55 +0000
parents f7038820df2e
children c4156275c1e1
rev   line source
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3cb2bea50456 Generate iso line classes according gnv-issues/issue108
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.gnv.raster;
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2
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3 /**
f7038820df2e Added support to trace rasters to JTS multi polygons and multi line strings.
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4 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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5 */
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6 public class IsoAttributeGenerator
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7 implements IsoProducer.AttributeGenerator
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8 {
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9 protected Palette palette;
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10
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11 public IsoAttributeGenerator() {
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12 }
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13
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14 public IsoAttributeGenerator(Palette palette) {
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15 this.palette = palette;
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16 }
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17
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18 public Object generateAttribute(int neighbor1, int neighbor2) {
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19 Palette.Entry e1 = palette.getEntryByIndex(neighbor1);
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20 Palette.Entry e2 = palette.getEntryByIndex(neighbor2);
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21
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22 if (e1 == null || e2 == null) {
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23 return null;
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24 }
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25
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26 double e1t = e1.getFrom();
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27 double e2f = e2.getTo();
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28
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29 return Double.valueOf(e2f >= e1t
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30 ? 0.5d*(e1t+e2f)
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31 : 0.5d*(e2.getTo()+e1.getFrom()));
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32 }
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33 }
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34 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org