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comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/JTSMultiLineStringProducer.java @ 802:4abe172be970

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Finished Javadoc of the raster package. gnv-artifacts/trunk@884 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 07 Apr 2010 07:49:12 +0000
parents c4156275c1e1
children feae2f9d6c6f
comparison
equal deleted inserted replaced
801:d766fe2d917a 802:4abe172be970
20 import java.util.List; 20 import java.util.List;
21 21
22 import org.apache.log4j.Logger; 22 import org.apache.log4j.Logger;
23 23
24 /** 24 /**
25 * Vectorizer backend to generated iso lines in form of
26 * JTS multi linestrings.
27 *
25 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> 28 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
26 */ 29 */
27 public class JTSMultiLineStringProducer 30 public class JTSMultiLineStringProducer
28 extends IsoProducer 31 extends IsoProducer
29 { 32 {
30 private static Logger log = Logger.getLogger( 33 private static Logger log = Logger.getLogger(
31 JTSMultiLineStringProducer.class); 34 JTSMultiLineStringProducer.class);
32 35
36 /**
37 * The JTS geometry factory of this producer.
38 */
33 protected GeometryFactory geometryFactory; 39 protected GeometryFactory geometryFactory;
34 40
41 /**
42 * The polygon used to clip the produced multe line strings.
43 */
35 protected Polygon clip; 44 protected Polygon clip;
36 45
46 /**
47 * Constructor to create a JTSMultiLineStringProducer with
48 * a given clipping polygon and a world bounding box.
49 * @param clip The clipping polygon.
50 * @param minX Min x coord of the world.
51 * @param minY Min y coord of the world.
52 * @param maxX Max x coord of the world.
53 * @param maxY Max y coord of the world.
54 */
37 public JTSMultiLineStringProducer( 55 public JTSMultiLineStringProducer(
38 Polygon clip, 56 Polygon clip,
39 double minX, double minY, 57 double minX, double minY,
40 double maxX, double maxY 58 double maxX, double maxY
41 ) { 59 ) {
45 JTSMultiPolygonProducer.createDefaultGeometryFactory(3), 63 JTSMultiPolygonProducer.createDefaultGeometryFactory(3),
46 minX, minY, 64 minX, minY,
47 maxX, maxY); 65 maxX, maxY);
48 } 66 }
49 67
68 /**
69 * Constructor to create a JTSMultiLineStringProducer with
70 * a given clipping polygon, a geometry factory
71 * and a world bounding box.
72 * @param clip The clipping polygon.
73 * @param geometryFactory The geometry factory.
74 * @param minX Min x coord of the world.
75 * @param minY Min y coord of the world.
76 * @param maxX Max x coord of the world.
77 * @param maxY Max y coord of the world.
78 */
50 public JTSMultiLineStringProducer( 79 public JTSMultiLineStringProducer(
51 Polygon clip, 80 Polygon clip,
52 GeometryFactory geometryFactory, 81 GeometryFactory geometryFactory,
53 double minX, double minY, 82 double minX, double minY,
54 double maxX, double maxY 83 double maxX, double maxY
56 super(minX, minY, maxX, maxY); 85 super(minX, minY, maxX, maxY);
57 this.clip = clip; 86 this.clip = clip;
58 this.geometryFactory = geometryFactory; 87 this.geometryFactory = geometryFactory;
59 } 88 }
60 89
90 /**
91 * Clips a given line string against the clippin polygon. The
92 * result is stored in the given list of line strings.
93 * @param lineString The line string to be clipped.
94 * @param lineStrings The result line string list.
95 */
61 protected void clipLineString( 96 protected void clipLineString(
62 LineString lineString, 97 LineString lineString,
63 ArrayList<LineString> lineStrings 98 ArrayList<LineString> lineStrings
64 ) { 99 ) {
65 if (clip == null) { 100 if (clip == null) {
97 log.error(te.getLocalizedMessage(), te); 132 log.error(te.getLocalizedMessage(), te);
98 lineStrings.add(lineString); 133 lineStrings.add(lineString);
99 } 134 }
100 } 135 }
101 136
137 /**
138 * Returns a list of pairs attribute -&gt; multi line string.
139 * All line strings produced are grouped by there attribute
140 * which is generated with the given attribute generator.
141 * @param attributeGenerator The attribute generator.
142 * @return The list of attribute/multi line strings.
143 */
102 public List<Pair<Object, MultiLineString>> getMultiLineStrings( 144 public List<Pair<Object, MultiLineString>> getMultiLineStrings(
103 AttributeGenerator attributeGenerator 145 AttributeGenerator attributeGenerator
104 ) { 146 ) {
105 ArrayList<Pair<Object, MultiLineString>> multiLineStrings = 147 ArrayList<Pair<Object, MultiLineString>> multiLineStrings =
106 new ArrayList<Pair<Object, MultiLineString>>(); 148 new ArrayList<Pair<Object, MultiLineString>>();
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