root / trunk / extensions / extSymbology / src / org / gvsig / symbology / fmap / labeling / placements / PolygonPlacementOnCentroid.java @ 20768
History | View | Annotate | Download (2.7 KB)
| 1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
|
| 4 |
*
|
| 5 |
* This program is free software; you can redistribute it and/or
|
| 6 |
* modify it under the terms of the GNU General Public License
|
| 7 |
* as published by the Free Software Foundation; either version 2
|
| 8 |
* of the License, or (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This program is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
* GNU General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU General Public License
|
| 16 |
* along with this program; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 18 |
*
|
| 19 |
* For more information, contact:
|
| 20 |
*
|
| 21 |
* Generalitat Valenciana
|
| 22 |
* Conselleria d'Infraestructures i Transport
|
| 23 |
* Av. Blasco Ib??ez, 50
|
| 24 |
* 46010 VALENCIA
|
| 25 |
* SPAIN
|
| 26 |
*
|
| 27 |
* +34 963862235
|
| 28 |
* gvsig@gva.es
|
| 29 |
* www.gvsig.gva.es
|
| 30 |
*
|
| 31 |
* or
|
| 32 |
*
|
| 33 |
* IVER T.I. S.A
|
| 34 |
* Salamanca 50
|
| 35 |
* 46005 Valencia
|
| 36 |
* Spain
|
| 37 |
*
|
| 38 |
* +34 963163400
|
| 39 |
* dac@iver.es
|
| 40 |
*/
|
| 41 |
package org.gvsig.symbology.fmap.labeling.placements; |
| 42 |
|
| 43 |
import java.util.ArrayList; |
| 44 |
|
| 45 |
import com.iver.cit.gvsig.fmap.core.FPoint2D; |
| 46 |
import com.iver.cit.gvsig.fmap.core.FShape; |
| 47 |
import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
| 48 |
import com.iver.cit.gvsig.fmap.rendering.styling.labeling.IPlacementConstraints; |
| 49 |
import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelClass; |
| 50 |
import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelLocationMetrics; |
| 51 |
import com.iver.utiles.swing.threads.Cancellable; |
| 52 |
import com.vividsolutions.jts.geom.Geometry; |
| 53 |
import com.vividsolutions.jts.geom.Point; |
| 54 |
/**
|
| 55 |
*
|
| 56 |
* PolygonPlacementOnCentroid.java
|
| 57 |
*
|
| 58 |
*
|
| 59 |
* @author jaume dominguez faus - jaume.dominguez@iver.es Apr 1, 2008
|
| 60 |
*
|
| 61 |
*/
|
| 62 |
public class PolygonPlacementOnCentroid extends MarkerCenteredAtPoint implements ILabelPlacement { |
| 63 |
|
| 64 |
public ArrayList<LabelLocationMetrics> guess(LabelClass lc, FShape shp, |
| 65 |
IPlacementConstraints placementConstraints, |
| 66 |
double cartographicSymbolSize, Cancellable cancel) {
|
| 67 |
|
| 68 |
if (cancel.isCanceled()) return CannotPlaceLabel.NO_PLACES; |
| 69 |
|
| 70 |
Geometry geo = FConverter.java2d_to_jts(shp); |
| 71 |
|
| 72 |
if (geo == null) { |
| 73 |
return CannotPlaceLabel.NO_PLACES;
|
| 74 |
} |
| 75 |
|
| 76 |
Point pJTS = geo.getCentroid();
|
| 77 |
return super.guess(lc, new FPoint2D(pJTS.getX(), pJTS.getY()), placementConstraints, cartographicSymbolSize, cancel); |
| 78 |
} |
| 79 |
|
| 80 |
public boolean isSuitableFor(IPlacementConstraints placementConstraints, |
| 81 |
int shapeType) {
|
| 82 |
if (shapeType == FShape.POLYGON) {
|
| 83 |
return placementConstraints.isHorizontal();
|
| 84 |
} |
| 85 |
return false; |
| 86 |
} |
| 87 |
|
| 88 |
} |