Revision 29972 branches/v2_0_0_prep/libraries/libFMap_geometries/src/org/gvsig/fmap/geom/primitive/impl/AbstractPrimitive.java
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.handler.Handler; |
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import org.gvsig.fmap.geom.operation.GeometryOperation; |
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import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
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import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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import org.gvsig.fmap.geom.operation.relationship.DefaultRelationshipGeometryOperationContext; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.FShape; |
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import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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import org.gvsig.fmap.geom.primitive.Primitive; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana |
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* @author Jorge Piera Llodr? (jorge.piera@iver.es) |
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*/ |
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public abstract class AbstractPrimitive implements Primitive, FShape, Serializable {
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private static final Logger logger = LoggerFactory.getLogger(GeometryManager.class); |
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private static final long serialVersionUID = -4334977368955260872L; |
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protected String id = null; |
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protected IProjection projection = null; |
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* @see org.gvsig.fmap.geom.Geometry#fastIntersects(double, double, double, double) |
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*/ |
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public boolean fastIntersects(double x, double y, double w, double h) {
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return intersects(x,y,w,h); |
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boolean resp = true; |
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try {
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resp = intersectsRectangle(this, x, y, w, h); |
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} catch (GeometryOperationException e) {
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logger.error("While doing fastintersects: " + e.getMessage(), e);
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} |
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return resp; |
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} |
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/* |
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} |
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/** |
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* Utility method |
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* @param geometry |
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* @param x |
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* @param y |
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* @return |
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* @throws GeometryOperationException |
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*/ |
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protected boolean containsPoint(Geometry geom, double x, double y) throws GeometryOperationException {
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// exclude disjoint |
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Envelope env = geom.getEnvelope(); |
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if (x > env.getMaximum(0)) return false; |
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if (y > env.getMaximum(1)) return false; |
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if (x < env.getMinimum(0)) return false; |
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if (y < env.getMinimum(1)) return false; |
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// boxes overlap, need long version |
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Geometry geompoint = null; |
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try {
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geompoint = GeometryLocator.getGeometryManager().createPoint(x, y, SUBTYPES.GEOM2D); |
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} catch (Exception e1) {
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throw new GeometryOperationException(geom.getType(), GeometryOperation.OPERATION_CONTAINS_CODE, e1); |
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} |
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DefaultRelationshipGeometryOperationContext drgoc = |
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new DefaultRelationshipGeometryOperationContext(geompoint); |
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Object resp = null; |
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boolean respboolean = true; |
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try {
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resp = geom.invokeOperation(GeometryOperation.OPERATION_CONTAINS_CODE, drgoc); |
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respboolean = ((Boolean) resp).booleanValue(); |
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} catch (Exception e) {
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throw new GeometryOperationException(geom.getType(), GeometryOperation.OPERATION_CONTAINS_CODE, e); |
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} |
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return respboolean; |
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} |
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/** |
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* |
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* @param geometry |
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* @param x |
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* @param y |
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* @param w |
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* @param h |
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* @return |
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*/ |
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protected boolean containsRectangle(Geometry geom, double x, double y, |
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double w, double h) throws GeometryOperationException {
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// exclude disjoint boxes |
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Envelope env = geom.getEnvelope(); |
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if (x > env.getMaximum(0)) return false; |
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if ((x+w) < env.getMinimum(0)) return false; |
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if (y > env.getMaximum(1)) return false; |
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if ((y+h) < env.getMinimum(1)) return false; |
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if (w == 0 && h == 0) {
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return containsPoint(geom, x, y); |
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} |
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// boxes overlap, need long version |
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Geometry rectgeom = null; |
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GeneralPathX gpx = new GeneralPathX(); |
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gpx.moveTo(x, y); |
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gpx.lineTo(x+w, y); |
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gpx.lineTo(x+w, y+h); |
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gpx.lineTo(x, y+h); |
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gpx.lineTo(x, y); |
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try {
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rectgeom = GeometryLocator.getGeometryManager().createSurface(gpx, SUBTYPES.GEOM2D); |
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} catch (Exception e1) {
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throw new GeometryOperationException(geom.getType(), GeometryOperation.OPERATION_CONTAINS_CODE, e1); |
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} |
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DefaultRelationshipGeometryOperationContext drgoc = |
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new DefaultRelationshipGeometryOperationContext(rectgeom); |
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Object resp = null; |
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boolean respboolean = true; |
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try {
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resp = geom.invokeOperation(GeometryOperation.OPERATION_CONTAINS_CODE, drgoc); |
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respboolean = ((Boolean) resp).booleanValue(); |
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} catch (Exception e) {
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throw new GeometryOperationException(geom.getType(), GeometryOperation.OPERATION_CONTAINS_CODE, e); |
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} |
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return respboolean; |
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} |
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/** |
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* |
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* @param geom |
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* @param x |
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* @param y |
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* @param w |
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* @param h |
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* @return |
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*/ |
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protected boolean intersectsRectangle(Geometry geom, double x, double y, |
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double w, double h) throws GeometryOperationException {
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// exclude disjoint boxes |
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Envelope env = geom.getEnvelope(); |
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if (x > env.getMaximum(0)) return false; |
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if ((x+w) < env.getMinimum(0)) return false; |
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if (y > env.getMaximum(1)) return false; |
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if ((y+h) < env.getMinimum(1)) return false; |
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// boxes overlap, need long version |
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Geometry rectgeom = null; |
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GeneralPathX gpx = new GeneralPathX(); |
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gpx.moveTo(x, y); |
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gpx.lineTo(x+w, y); |
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gpx.lineTo(x+w, y+h); |
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gpx.lineTo(x, y+h); |
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gpx.lineTo(x, y); |
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try {
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rectgeom = GeometryLocator.getGeometryManager().createSurface(gpx, SUBTYPES.GEOM2D); |
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} catch (Exception e1) {
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throw new GeometryOperationException(geom.getType(), GeometryOperation.OPERATION_INTERSECTS_CODE, e1); |
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} |
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DefaultRelationshipGeometryOperationContext drgoc = |
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new DefaultRelationshipGeometryOperationContext(rectgeom); |
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Object resp = null; |
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boolean respboolean = true; |
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try {
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resp = geom.invokeOperation(GeometryOperation.OPERATION_INTERSECTS_CODE, drgoc); |
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respboolean = ((Boolean) resp).booleanValue(); |
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} catch (Exception e) {
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throw new GeometryOperationException(geom.getType(), GeometryOperation.OPERATION_INTERSECTS_CODE, e); |
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} |
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return respboolean; |
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} |
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} |
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