Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/utils/GeometryUtils.java @ 1774:092e1e5020bc
Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
flys-artifacts/trunk@3095 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Fri, 28 Oct 2011 05:54:25 +0000 |
| parents | eb3ab28d1c21 |
| children | cbeeaaad1056 |
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| 1773:9be01e2e6897 | 1774:092e1e5020bc |
|---|---|
| 10 import java.util.Map; | 10 import java.util.Map; |
| 11 | 11 |
| 12 import org.apache.log4j.Logger; | 12 import org.apache.log4j.Logger; |
| 13 | 13 |
| 14 import com.vividsolutions.jts.geom.Coordinate; | 14 import com.vividsolutions.jts.geom.Coordinate; |
| 15 import com.vividsolutions.jts.geom.Envelope; | |
| 15 import com.vividsolutions.jts.geom.Geometry; | 16 import com.vividsolutions.jts.geom.Geometry; |
| 16 | 17 |
| 17 import org.opengis.feature.simple.SimpleFeature; | 18 import org.opengis.feature.simple.SimpleFeature; |
| 18 import org.opengis.feature.simple.SimpleFeatureType; | 19 import org.opengis.feature.simple.SimpleFeatureType; |
| 19 import org.opengis.referencing.FactoryException; | 20 import org.opengis.referencing.FactoryException; |
| 42 | 43 |
| 43 private GeometryUtils() { | 44 private GeometryUtils() { |
| 44 } | 45 } |
| 45 | 46 |
| 46 | 47 |
| 47 public static String getRiverBounds(String rivername) { | 48 public static Envelope getRiverBoundary(String rivername) { |
| 48 RiverAxis axis = RiverAxis.getRiverAxis(rivername); | 49 RiverAxis axis = RiverAxis.getRiverAxis(rivername); |
| 49 if (axis != null) { | 50 if (axis != null) { |
| 50 // TODO Take the correct EPSG into account. Maybe, we need to | 51 // TODO Take the correct EPSG into account. Maybe, we need to |
| 51 // reproject the geometry. | 52 // reproject the geometry. |
| 52 Geometry geom = axis.getGeom().getBoundary(); | 53 return axis.getGeom().getEnvelopeInternal(); |
| 53 return jtsBoundsToOLBounds(geom); | |
| 54 } | 54 } |
| 55 | 55 |
| 56 return null; | 56 return null; |
| 57 } | 57 } |
| 58 | 58 |
| 59 | 59 |
| 60 public static String getRiverBounds(String rivername) { | |
| 61 Envelope env = getRiverBoundary(rivername); | |
| 62 | |
| 63 if (env == null) { | |
| 64 return jtsBoundsToOLBounds(env); | |
| 65 } | |
| 66 | |
| 67 return null; | |
| 68 } | |
| 69 | |
| 70 | |
| 60 /** | 71 /** |
| 61 * Returns the boundary of Geometry <i>geom</i> in OpenLayers | 72 * Returns the boundary of Envelope <i>env</i> in OpenLayers |
| 62 * representation. | 73 * representation. |
| 63 * | 74 * |
| 64 * @param geom The geometry. | 75 * @param env The envelope of a geometry. |
| 65 * | 76 * |
| 66 * @return the OpenLayers boundary of <i>geom</i>. | 77 * @return the OpenLayers boundary of <i>env</i>. |
| 67 */ | 78 */ |
| 68 public static String jtsBoundsToOLBounds(Geometry geom) { | 79 public static String jtsBoundsToOLBounds(Envelope env) { |
| 69 Coordinate[] c = geom != null ? geom.getCoordinates() : null; | 80 return "" + |
| 70 | 81 env.getMinX() + " " + |
| 71 if (c == null || c.length < 2) { | 82 env.getMinY() + " " + |
| 72 return null; | 83 env.getMaxX() + " " + |
| 73 } | 84 env.getMaxY(); |
| 74 | |
| 75 return "" + c[0].x + " " + c[1].y + " " + c[1].x + " " + c[0].y; | |
| 76 } | 85 } |
| 77 | 86 |
| 78 | 87 |
| 79 public static String createOLBounds(Geometry a, Geometry b) { | 88 public static String createOLBounds(Geometry a, Geometry b) { |
| 80 Coordinate[] ca = a.getCoordinates(); | 89 Coordinate[] ca = a.getCoordinates(); |