Revision 20098 trunk/libraries/libFMap/src/com/iver/cit/gvsig/fmap/tools/AreaListenerImpl.java
| AreaListenerImpl.java | ||
|---|---|---|
| 61 | 61 |
|
| 62 | 62 |
|
| 63 | 63 |
/** |
| 64 |
* Implementaci?n de la interfaz MeasureListener como herramienta para medir el |
|
| 65 |
* ?rea. |
|
| 64 |
* <p>Listener for calculating the area of a polygon, defined in the associated {@link MapControl MapControl}
|
|
| 65 |
* object.</p> |
|
| 66 |
* |
|
| 67 |
* <p>If the view port of the associated <code>MapControl</code> isn't projected gets the area according the |
|
| 68 |
* geographical coordinates.</p> |
|
| 66 | 69 |
* |
| 67 | 70 |
* @author Vicente Caballero Navarro |
| 68 | 71 |
*/ |
| 69 | 72 |
public class AreaListenerImpl implements PolylineListener {
|
| 73 |
/** |
|
| 74 |
* The image to display when the cursor is active. |
|
| 75 |
*/ |
|
| 70 | 76 |
private final Image iarea = new ImageIcon(MapControl.class.getResource( |
| 71 | 77 |
"images/AreaCursor.gif")).getImage(); |
| 78 |
|
|
| 79 |
/** |
|
| 80 |
* The cursor used to work with this tool listener. |
|
| 81 |
* |
|
| 82 |
* @see #getCursor() |
|
| 83 |
*/ |
|
| 72 | 84 |
private Cursor cur = Toolkit.getDefaultToolkit().createCustomCursor(iarea, |
| 73 | 85 |
new Point(16, 16), ""); |
| 86 |
|
|
| 87 |
/** |
|
| 88 |
* Reference to the <code>MapControl</code> object that uses. |
|
| 89 |
*/ |
|
| 74 | 90 |
protected MapControl mapCtrl; |
| 91 |
|
|
| 92 |
/** |
|
| 93 |
* Information about all vertexes and {@link GeneralPathX GeneralPathX}s of the polyline.
|
|
| 94 |
*/ |
|
| 75 | 95 |
protected MeasureEvent event; |
| 76 | 96 |
|
| 77 | 97 |
/** |
| 78 |
* Crea un nuevo AreaListenerImpl.
|
|
| 98 |
* <p>Creates a new listener for calculating the area of a polygon.</p>
|
|
| 79 | 99 |
* |
| 80 |
* @param mc MapControl.
|
|
| 100 |
* @param mc the <code>MapControl</code> where is calculated the area
|
|
| 81 | 101 |
*/ |
| 82 | 102 |
public AreaListenerImpl(MapControl mc) {
|
| 83 | 103 |
this.mapCtrl = mc; |
| 84 | 104 |
} |
| 85 | 105 |
|
| 86 |
/** |
|
| 106 |
/* |
|
| 107 |
* (non-Javadoc) |
|
| 87 | 108 |
* @see com.iver.cit.gvsig.fmap.tools.Listeners.PolylineListener#points(com.iver.cit.gvsig.fmap.tools.Events.MeasureEvent) |
| 88 | 109 |
*/ |
| 89 | 110 |
public void points(MeasureEvent event) {
|
| ... | ... | |
| 113 | 134 |
event.getXs()[event.getXs().length - 2].doubleValue(), |
| 114 | 135 |
event.getYs()[event.getYs().length - 2].doubleValue()))))); |
| 115 | 136 |
} |
| 137 |
|
|
| 116 | 138 |
/** |
| 117 |
* Calcula el ?rea de un pol?gono simple, no de multipol?gonos,
|
|
| 118 |
* para estos ?ltimos se tendr? que dividir en poligonos simples
|
|
| 119 |
* y sumar los resultados.
|
|
| 139 |
* <p>Returns the area of the polygon, using {@link #returnCoordsArea(Double[], Double[], Point2D) returnCoordsArea}
|
|
| 140 |
* if the <code>ViewPort</code> of the associated <code>MapControl</code> is projected, or using
|
|
| 141 |
* {@link #returnGeoCArea(Double[], Double[], Point2D) returnGeoCArea} if isn't.</p>
|
|
| 120 | 142 |
* |
| 121 |
* @param point ?ltimo punto.
|
|
| 143 |
* @param point unused parameter
|
|
| 122 | 144 |
* |
| 123 |
* @return ?rea. |
|
| 145 |
* @return area from the vertexes stored at the measure event in real coordinates, or, if the <code>MapControl</code> |
|
| 146 |
* isn't projected, in geographical coordinates |
|
| 147 |
* |
|
| 148 |
* @see #returnCoordsArea(Double[], Double[], Point2D) |
|
| 149 |
* @see #returnGeoCArea(Double[], Double[], Point2D) |
|
| 124 | 150 |
*/ |
| 125 | 151 |
protected double returnArea(Point2D point) {
|
| 126 | 152 |
Double[] xs=event.getXs(); |
| ... | ... | |
| 132 | 158 |
} |
| 133 | 159 |
|
| 134 | 160 |
/** |
| 135 |
* Calcula el ?rea de un pol?gono simple de una proyecci?n, no de multipol?gonos,
|
|
| 136 |
* para estos ?ltimos se tendr? que dividir en poligonos simples
|
|
| 137 |
* y sumar los resultados.
|
|
| 161 |
* <p>Returns the area of the polygon using <i>point</i> as initial, in
|
|
| 162 |
* real values with the current measure unit, according the projection in the <code>ViewPort</code>
|
|
| 163 |
* of the <code>MapControl</code>.</p>
|
|
| 138 | 164 |
* |
| 139 |
* @param aux ?ltimo punto. |
|
| 165 |
* @param xs abscissa coordinate of all vertexes of the polygon |
|
| 166 |
* @param ys ordinate coordinate of all vertexes of the polygon |
|
| 167 |
* @param point point 2D used as first vertex in the calculation of the area |
|
| 140 | 168 |
* |
| 141 |
* @return ?rea.
|
|
| 169 |
* @return the area of the polygon
|
|
| 142 | 170 |
*/ |
| 143 | 171 |
public double returnCoordsArea(Double[] xs,Double[] ys, Point2D point) {
|
| 144 | 172 |
Point2D aux=point; |
| ... | ... | |
| 163 | 191 |
elArea = Math.abs(elArea / 2.0); |
| 164 | 192 |
return (elArea*(Math.pow(MapContext.CHANGEM[vp.getMapUnits()],2))); |
| 165 | 193 |
} |
| 166 |
public static void main(String[] args) {
|
|
| 167 |
IProjection projectionUTM = CRSFactory.getCRS("EPSG:23030");
|
|
| 168 |
ViewPort vpUTM = new ViewPort(projectionUTM); |
|
| 169 |
MapControl mcUTM=new MapControl(); |
|
| 170 |
mcUTM.setMapContext(new MapContext(vpUTM)); |
|
| 171 |
AreaListenerImpl areaListenerUTM=new AreaListenerImpl(mcUTM); |
|
| 172 |
IProjection projectionGeo = CRSFactory.getCRS("EPSG:4230");
|
|
| 173 |
ViewPort vpGeo = new ViewPort(projectionGeo); |
|
| 174 |
MapControl mcGeo=new MapControl(); |
|
| 175 |
mcGeo.setMapContext(new MapContext(vpGeo)); |
|
| 176 |
AreaListenerImpl areaListenerGeo=new AreaListenerImpl(mcGeo); |
|
| 194 |
public static void main(String[] args) {
|
|
| 195 |
IProjection projectionUTM = CRSFactory.getCRS("EPSG:23030");
|
|
| 196 |
ViewPort vpUTM = new ViewPort(projectionUTM); |
|
| 197 |
MapControl mcUTM=new MapControl(); |
|
| 198 |
mcUTM.setMapContext(new MapContext(vpUTM)); |
|
| 199 |
AreaListenerImpl areaListenerUTM=new AreaListenerImpl(mcUTM); |
|
| 200 |
IProjection projectionGeo = CRSFactory.getCRS("EPSG:4230");
|
|
| 201 |
ViewPort vpGeo = new ViewPort(projectionGeo); |
|
| 202 |
MapControl mcGeo=new MapControl(); |
|
| 203 |
mcGeo.setMapContext(new MapContext(vpGeo)); |
|
| 204 |
AreaListenerImpl areaListenerGeo=new AreaListenerImpl(mcGeo); |
|
| 205 |
|
|
| 206 |
Double[] xsUTMCaseta=new Double[] {new Double(547508.77),new Double(547517.73),new Double(547512.65)};
|
|
| 207 |
Double[] ysUTMCaseta=new Double[] {new Double(4704333.97),new Double(4704331.3),new Double(4704315.2)};
|
|
| 208 |
double areaUTMCaseta=areaListenerUTM.returnCoordsArea(xsUTMCaseta,ysUTMCaseta,new Point2D.Double(547512.65,4704315.2)); |
|
| 209 |
Double[] xsGeoCaseta=new Double[] {new Double(-2.42192383),new Double(-2.42181545),new Double(-2.42187771)};
|
|
| 210 |
Double[] ysGeoCaseta=new Double[] {new Double(42.48914909),new Double(42.48912295),new Double(42.48897922)};
|
|
| 211 |
double areaGeoCCaseta=areaListenerGeo.returnGeoCArea(xsGeoCaseta,ysGeoCaseta,new Point2D.Double(-2.42187771,42.48897922)); |
|
| 212 |
|
|
| 213 |
System.out.println("AreaUTMCaseta = "+ areaUTMCaseta);
|
|
| 214 |
System.out.println("AreaGeoCCaseta = "+ areaGeoCCaseta);
|
|
| 215 |
|
|
| 216 |
|
|
| 217 |
Double[] xsUTM=new Double[] {new Double(731292),new Double(731901),new Double(730138)};
|
|
| 218 |
Double[] ysUTM=new Double[] {new Double(4351223),new Double(4350768),new Double(4349232)};
|
|
| 219 |
double areaUTM=areaListenerUTM.returnCoordsArea(xsUTM,ysUTM,new Point2D.Double(730138,4349232)); |
|
| 220 |
Double[] xsGeo=new Double[] {new Double(-0.31888183),new Double(-0.31173131),new Double(-0.33268401)};
|
|
| 221 |
Double[] ysGeo=new Double[] {new Double(39.27871741),new Double(39.27464327),new Double(39.26117368)};
|
|
| 222 |
double areaGeoC=areaListenerGeo.returnGeoCArea(xsGeo,ysGeo,new Point2D.Double(-0.33268401,39.26117368)); |
|
| 223 |
|
|
| 224 |
System.out.println("AreaUTM = "+ areaUTM);
|
|
| 225 |
System.out.println("AreaGeoC = "+ areaGeoC);
|
|
| 226 |
|
|
| 227 |
Double[] xsUTMspain=new Double[] {new Double(-12806),new Double(1025790),new Double(-31353.14)};
|
|
| 228 |
Double[] ysUTMspain=new Double[] {new Double(4793276.43),new Double(4719090.94),new Double(4125607.02)};
|
|
| 229 |
double areaUTMspain=areaListenerUTM.returnCoordsArea(xsUTMspain,ysUTMspain,new Point2D.Double(730138,4349232)); |
|
| 230 |
Double[] xsGeospain=new Double[] {new Double(-9.22743872),new Double(3.33087936),new Double(-9.01458587),new Double(-9.22743872)};
|
|
| 231 |
Double[] ysGeospain=new Double[] {new Double(43.02384666),new Double(42.38528811),new Double(37.06396689),new Double(43.02384666)};
|
|
| 232 |
double areaGeospainC=areaListenerGeo.returnGeoCArea(xsGeospain,ysGeospain,new Point2D.Double(-9.01458587,37.06396689)); |
|
| 233 |
|
|
| 234 |
System.out.println("AreaUTMSpain = "+ areaUTMspain);
|
|
| 235 |
System.out.println("AreaGeoSpainC = "+ areaGeospainC);
|
|
| 236 |
} |
|
| 177 | 237 |
|
| 178 |
Double[] xsUTMCaseta=new Double[] {new Double(547508.77),new Double(547517.73),new Double(547512.65)};
|
|
| 179 |
Double[] ysUTMCaseta=new Double[] {new Double(4704333.97),new Double(4704331.3),new Double(4704315.2)};
|
|
| 180 |
double areaUTMCaseta=areaListenerUTM.returnCoordsArea(xsUTMCaseta,ysUTMCaseta,new Point2D.Double(547512.65,4704315.2)); |
|
| 181 |
Double[] xsGeoCaseta=new Double[] {new Double(-2.42192383),new Double(-2.42181545),new Double(-2.42187771)};
|
|
| 182 |
Double[] ysGeoCaseta=new Double[] {new Double(42.48914909),new Double(42.48912295),new Double(42.48897922)};
|
|
| 183 |
double areaGeoCCaseta=areaListenerGeo.returnGeoCArea(xsGeoCaseta,ysGeoCaseta,new Point2D.Double(-2.42187771,42.48897922)); |
|
| 184 |
|
|
| 185 |
System.out.println("AreaUTMCaseta = "+ areaUTMCaseta);
|
|
| 186 |
System.out.println("AreaGeoCCaseta = "+ areaGeoCCaseta);
|
|
| 187 |
|
|
| 188 |
|
|
| 189 |
Double[] xsUTM=new Double[] {new Double(731292),new Double(731901),new Double(730138)};
|
|
| 190 |
Double[] ysUTM=new Double[] {new Double(4351223),new Double(4350768),new Double(4349232)};
|
|
| 191 |
double areaUTM=areaListenerUTM.returnCoordsArea(xsUTM,ysUTM,new Point2D.Double(730138,4349232)); |
|
| 192 |
Double[] xsGeo=new Double[] {new Double(-0.31888183),new Double(-0.31173131),new Double(-0.33268401)};
|
|
| 193 |
Double[] ysGeo=new Double[] {new Double(39.27871741),new Double(39.27464327),new Double(39.26117368)};
|
|
| 194 |
double areaGeoC=areaListenerGeo.returnGeoCArea(xsGeo,ysGeo,new Point2D.Double(-0.33268401,39.26117368)); |
|
| 195 |
|
|
| 196 |
System.out.println("AreaUTM = "+ areaUTM);
|
|
| 197 |
System.out.println("AreaGeoC = "+ areaGeoC);
|
|
| 198 |
|
|
| 199 |
Double[] xsUTMspain=new Double[] {new Double(-12806),new Double(1025790),new Double(-31353.14)};
|
|
| 200 |
Double[] ysUTMspain=new Double[] {new Double(4793276.43),new Double(4719090.94),new Double(4125607.02)};
|
|
| 201 |
double areaUTMspain=areaListenerUTM.returnCoordsArea(xsUTMspain,ysUTMspain,new Point2D.Double(730138,4349232)); |
|
| 202 |
Double[] xsGeospain=new Double[] {new Double(-9.22743872),new Double(3.33087936),new Double(-9.01458587),new Double(-9.22743872)};
|
|
| 203 |
Double[] ysGeospain=new Double[] {new Double(43.02384666),new Double(42.38528811),new Double(37.06396689),new Double(43.02384666)};
|
|
| 204 |
double areaGeospainC=areaListenerGeo.returnGeoCArea(xsGeospain,ysGeospain,new Point2D.Double(-9.01458587,37.06396689)); |
|
| 205 |
|
|
| 206 |
System.out.println("AreaUTMSpain = "+ areaUTMspain);
|
|
| 207 |
System.out.println("AreaGeoSpainC = "+ areaGeospainC);
|
|
| 208 |
} |
|
| 209 |
|
|
| 210 | 238 |
/** |
| 211 |
* Calcula el ?rea de un pol?gono simple en geod?sicas, no de |
|
| 212 |
* multipol?gonos, para estos ?ltimos se tendr? que dividir en poligonos |
|
| 213 |
* simples y sumar los resultados. |
|
| 214 |
* |
|
| 215 |
* @param aux |
|
| 216 |
* ?ltimo punto. |
|
| 217 |
* |
|
| 218 |
* @return ?rea. |
|
| 239 |
* <p>Returns the area in geographical coordinates of the polygon, according the |
|
| 240 |
* <a href="http://en.wikipedia.org/wiki/Haversine_formula">Haversine function</a>.</p> |
|
| 241 |
* |
|
| 242 |
* @see Geo#sphericalPolyArea(double[], double[], int) |
|
| 219 | 243 |
*/ |
| 220 | 244 |
public double returnGeoCArea(Double[] xs, Double[] ys, Point2D point) {
|
| 221 | 245 |
double[] lat = new double[xs.length]; |
| ... | ... | |
| 226 | 250 |
} |
| 227 | 251 |
return (Geo.sphericalPolyArea(lat, lon, xs.length - 1) * Geo.SqM);// /1.29132441;//Esto |
| 228 | 252 |
} |
| 229 |
/** |
|
| 253 |
|
|
| 254 |
/* |
|
| 255 |
* (non-Javadoc) |
|
| 230 | 256 |
* @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#getCursor() |
| 231 | 257 |
*/ |
| 232 | 258 |
public Cursor getCursor() {
|
| 233 | 259 |
return cur; |
| 234 | 260 |
} |
| 235 | 261 |
|
| 236 |
/** |
|
| 262 |
/* |
|
| 263 |
* (non-Javadoc) |
|
| 237 | 264 |
* @see com.iver.cit.gvsig.fmap.tools.Listeners.PolylineListener#pointFixed(com.iver.cit.gvsig.fmap.tools.Events.MeasureEvent) |
| 238 | 265 |
*/ |
| 239 | 266 |
public void pointFixed(MeasureEvent event) {
|
| 240 | 267 |
} |
| 241 | 268 |
|
| 242 |
/** |
|
| 269 |
/* |
|
| 270 |
* (non-Javadoc) |
|
| 243 | 271 |
* @see com.iver.cit.gvsig.fmap.tools.Listeners.PolylineListener#polylineFinished(com.iver.cit.gvsig.fmap.tools.Events.MeasureEvent) |
| 244 | 272 |
*/ |
| 245 | 273 |
public void polylineFinished(MeasureEvent event) {
|
| 246 | 274 |
} |
| 247 | 275 |
|
| 248 |
/** |
|
| 276 |
/* |
|
| 277 |
* (non-Javadoc) |
|
| 249 | 278 |
* @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#cancelDrawing() |
| 250 | 279 |
*/ |
| 251 | 280 |
public boolean cancelDrawing() {
|
Also available in: Unified diff