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comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/IsoPolygonSeriesProducer.java @ 448:3cb2bea50456

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Generate iso line classes according gnv-issues/issue108 gnv-artifacts/trunk@496 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 03 Jan 2010 12:16:55 +0000
parents 92b7ccbf6163
children f7038820df2e
comparison
equal deleted inserted replaced
447:92b7ccbf6163 448:3cb2bea50456
25 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) 25 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
26 */ 26 */
27 public class IsoPolygonSeriesProducer 27 public class IsoPolygonSeriesProducer
28 implements RingsHandler 28 implements RingsHandler
29 { 29 {
30 private static Logger log = Logger.getLogger( 30 private static Logger log = Logger.getLogger(
31 IsoPolygonSeriesProducer.class); 31 IsoPolygonSeriesProducer.class);
32 32
33 public static final Float LINE_WIDTH = Float.valueOf(0.1f); 33 public static final Float LINE_WIDTH = Float.valueOf(0.1f);
34 34
35 public interface LabelGenerator { 35 public interface AttributeGenerator {
36 36
37 String generateLabel(int neighbor1, int neighbor2); 37 Object generateAttribute(int neighbor1, int neighbor2);
38 38
39 } // interface LabelGenerator 39 } // interface AttributeGenerator
40 40
41 protected HashMap<Edge, Integer> open; 41 protected HashMap<Edge, Integer> open;
42 protected HashMap<IJKey, TIntObjectHashMap> commonOpen; 42 protected HashMap<IJKey, TIntObjectHashMap> commonOpen;
43 protected HashMap<IJKey, ArrayList<Edge>> complete; 43 protected HashMap<IJKey, ArrayList<Edge>> complete;
44 44
135 135
136 public Collection<PolygonSeries> getSeries() { 136 public Collection<PolygonSeries> getSeries() {
137 return getSeries(null); 137 return getSeries(null);
138 } 138 }
139 139
140 public Collection<PolygonSeries> getSeries(LabelGenerator labelGenerator) { 140 public Collection<PolygonSeries> getSeries(
141 141 AttributeGenerator attributeGenerator
142 ) {
142 ArrayList<PolygonSeries> series = new ArrayList<PolygonSeries>(); 143 ArrayList<PolygonSeries> series = new ArrayList<PolygonSeries>();
143 144
144 double b1 = minX; 145 double b1 = minX;
145 double m1 = width != 1 146 double m1 = width != 1
146 ? (maxX - minX)/(width-1) 147 ? (maxX - minX)/(width-1)
185 186
186 // process open 187 // process open
187 TIntObjectHashMap map = commonOpen.get(key); 188 TIntObjectHashMap map = commonOpen.get(key);
188 189
189 if (map != null) { 190 if (map != null) {
190 final ArrayList<Edge> headList = new ArrayList<Edge>(); 191 final ArrayList<Edge> headList = new ArrayList<Edge>();
191 map.forEachValue(new TObjectProcedure() { 192 map.forEachValue(new TObjectProcedure() {
192 TIntHashSet headSet = new TIntHashSet(); 193 TIntHashSet headSet = new TIntHashSet();
193 public boolean execute(Object value) { 194 public boolean execute(Object value) {
194 Edge head = ((Edge)value).head(); 195 Edge head = ((Edge)value).head();
195 if (headSet.add(head.a)) { 196 if (headSet.add(head.a)) {
196 headList.add(head); 197 headList.add(head);
197 } 198 }
198 return true; 199 return true;
199 } 200 }
200 }); 201 });
201 202
202 for (Edge head: headList) { 203 for (Edge head: headList) {
203 204
204 head = Vectorizer.simplify(head, width); 205 head = Vectorizer.simplify(head, width);
205 Edge current = head, last = head; 206 Edge current = head, last = head;
215 ps.addRing(new CompactXYItems(vertices.toNativeArray())); 216 ps.addRing(new CompactXYItems(vertices.toNativeArray()));
216 vertices.clear(); 217 vertices.clear();
217 } // for all in common open 218 } // for all in common open
218 } // if map defined for key 219 } // if map defined for key
219 220
220 int itemCount = ps.getItemCount(); 221 if (ps.getItemCount() > 0) {
221
222 if (itemCount > 0) {
223 series.add(ps); 222 series.add(ps);
224 if (labelGenerator != null) { 223 if (attributeGenerator != null) {
225 ps.setAttribute( 224 Object attribute = attributeGenerator
226 "label", 225 .generateAttribute(key.i, key.j);
227 labelGenerator.generateLabel(key.i, key.j)); 226
227 if (attribute != null) {
228 ps.setAttribute("label", attribute);
229 }
228 } 230 }
229 ps.setAttribute("line.width", LINE_WIDTH); 231 ps.setAttribute("line.width", LINE_WIDTH);
230 } 232 }
231 } // for all pairs 233 } // for all pairs
232 234
233 return series; 235 return series;
234 } 236 }
237
238 public void clear() {
239 open.clear();
240 complete.clear();
241 commonOpen.clear();
242 }
235 } 243 }
236 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: 244 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
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