gvsig-vectorediting / org.gvsig.vectorediting / trunk / org.gvsig.vectorediting / org.gvsig.vectorediting.lib / org.gvsig.vectorediting.lib.prov / org.gvsig.vectorediting.lib.prov.polyline / src / main / java / org / gvsig / vectorediting / lib / prov / polyline / PolylineEditingProvider.java @ 159
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2014 gvSIG Association
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.vectorediting.lib.prov.polyline; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.Geometry.TYPES; |
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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.aggregate.MultiCurve; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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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.primitive.Curve; |
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import org.gvsig.fmap.geom.primitive.Line; |
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import org.gvsig.fmap.geom.primitive.OrientablePrimitive; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.primitive.Surface; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.i18n.I18nManager; |
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import org.gvsig.tools.service.spi.ProviderServices; |
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import org.gvsig.vectorediting.lib.api.DrawingStatus; |
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import org.gvsig.vectorediting.lib.api.EditingServiceParameter; |
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import org.gvsig.vectorediting.lib.api.EditingServiceParameter.TYPE; |
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import org.gvsig.vectorediting.lib.api.exceptions.DrawServiceException; |
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import org.gvsig.vectorediting.lib.api.exceptions.FinishServiceException; |
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import org.gvsig.vectorediting.lib.api.exceptions.InvalidEntryException; |
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import org.gvsig.vectorediting.lib.api.exceptions.StartServiceException; |
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import org.gvsig.vectorediting.lib.api.exceptions.VectorEditingException; |
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import org.gvsig.vectorediting.lib.spi.AbstractEditingProvider; |
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import org.gvsig.vectorediting.lib.spi.DefaultDrawingStatus; |
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import org.gvsig.vectorediting.lib.spi.DefaultEditingServiceParameter; |
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import org.gvsig.vectorediting.lib.spi.EditingProvider; |
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import org.gvsig.vectorediting.lib.spi.EditingProviderFactory; |
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import org.gvsig.vectorediting.lib.spi.EditingProviderServices; |
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public class PolylineEditingProvider extends AbstractEditingProvider implements |
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EditingProvider {
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protected EditingProviderServices editingProviderServices =
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(EditingProviderServices) getProviderServices(); |
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protected I18nManager i18nManager = ToolsLocator.getI18nManager();
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private EditingServiceParameter points =
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new DefaultEditingServiceParameter("Points", |
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i18nManager.getTranslation("indicate_new_point"),
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TYPE.LIST_POSITIONS, TYPE.OPTION); |
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private boolean arcMode = false; |
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private List<MyPolyLinePoint> values; |
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protected FeatureStore featureStore;
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public PolylineEditingProvider(ProviderServices providerServices,
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DynObject parameters) {
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super(providerServices);
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this.featureStore =
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(FeatureStore) parameters |
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.getDynValue(EditingProviderFactory.FEATURE_STORE_FIELD); |
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} |
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/**
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* @param angle1
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* @param angle2
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* @return
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*/
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private static double angleDistance(double angle1, double angle2) { |
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if (angle1 < angle2) {
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return angle2 - angle1;
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} else {
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return ((Math.PI * 2) - angle1) + angle2; |
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} |
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} |
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/**
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*
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*
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* @param lastPosition
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* @return
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* @throws VectorEditingException
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*/
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private DrawingStatus calculatePolyline(Point lastPosition) |
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throws VectorEditingException {
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DrawingStatus geometries = new DefaultDrawingStatus();
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Double antm = null; |
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Double antb = null; |
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Double m = null; |
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Double b = null; |
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Point center = null; |
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double radius = 0.0; |
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double startAngle = 0.0; |
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double endAngle = 0.0; |
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double angleExt = 0.0; |
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boolean right = false; |
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boolean addGeom = false; |
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GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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Curve lineAntPointToPoint = null;
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if (values.size() >= 1) { |
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for (int i = 0; i < values.size(); i++) { |
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MyPolyLinePoint polyLinePoint = values.get(i); |
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MyPolyLinePoint polyLineNextPoint = getNextPoint(i); |
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Point point = polyLinePoint.getPoint();
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Point nextPoint;
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if (polyLineNextPoint == null) { |
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nextPoint = lastPosition; |
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addGeom = true;
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} else {
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nextPoint = polyLineNextPoint.getPoint(); |
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} |
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if (nextPoint == null) { |
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return geometries;
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} |
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if (polyLinePoint.isArcMode()) {
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try {
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lineAntPointToPoint = |
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editingProviderServices.createLine(point.getX(), |
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point.getY(), nextPoint.getX(), |
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nextPoint.getY(), featureStore); |
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Double[] lineParams = getLineParams(point, nextPoint); |
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m = lineParams[0];
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b = lineParams[1];
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Point[] pointPerpendicular = |
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getPerpendicular(antm, antb, point, featureStore); |
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Line linePointPerpendicular =
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geomManager.createLine(editingProviderServices |
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.getSubType(featureStore)); |
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linePointPerpendicular.setPoints(pointPerpendicular[0],
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pointPerpendicular[1]);
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Point[] bisector = |
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getPerpendicular(m, b, |
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getMidPoint(point, nextPoint, featureStore), |
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featureStore); |
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Line lineBisector =
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geomManager.createLine(editingProviderServices |
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.getSubType(featureStore)); |
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lineBisector.setPoints(bisector[0], bisector[1]); |
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center = |
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getIntersection(bisector, pointPerpendicular, |
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featureStore); |
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if (center != null) { |
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startAngle = getAngle(center, point); |
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endAngle = getAngle(center, nextPoint); |
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radius = center.distance(point); |
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} else {
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String msg =
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String.format(
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"Can't get intersection between bisector"
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+ " [(%1$s,%2$s),(%3$s,%4$s)]"
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+ " and perperdicular"
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+ " [(%5$s,%6$s),(%7$s,%8$s)]",
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bisector[0].getX(), bisector[0].getY(), |
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bisector[1].getX(), bisector[1].getY(), |
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pointPerpendicular[0].getX(),
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pointPerpendicular[0].getY(),
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pointPerpendicular[1].getX(),
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pointPerpendicular[1].getY());
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throw new DrawServiceException(msg, null); |
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} |
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} catch (Exception e) { |
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throw new DrawServiceException(e); |
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} |
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if (right) {
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if (nextPoint.getX() >= point.getX()) {
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if (m >= antm) {
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angleExt = angleDistance(endAngle, startAngle); |
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right = !(nextPoint.getY() >= center.getY()); |
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} else {
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angleExt = -angleDistance(startAngle, endAngle); |
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right = (nextPoint.getY() >= center.getY()); |
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} |
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} else {
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if (m >= antm) {
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angleExt = -angleDistance(startAngle, endAngle); |
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right = (nextPoint.getY() >= center.getY()); |
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} else {
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angleExt = angleDistance(endAngle, startAngle); |
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right = !(nextPoint.getY() >= center.getY()); |
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} |
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} |
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} else {
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if (nextPoint.getX() < point.getX()) {
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if (m >= antm) {
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angleExt = angleDistance(endAngle, startAngle); |
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right = !(nextPoint.getY() >= center.getY()); |
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} else {
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angleExt = -angleDistance(startAngle, endAngle); |
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right = (nextPoint.getY() >= center.getY()); |
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} |
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} else {
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if (m >= antm) {
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angleExt = -angleDistance(startAngle, endAngle); |
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right = (nextPoint.getY() >= center.getY()); |
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} else {
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angleExt = angleDistance(endAngle, startAngle); |
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right = !(nextPoint.getY() >= center.getY()); |
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} |
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} |
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} |
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Curve arco = null;
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try {
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arco = |
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editingProviderServices.createArc(center, radius, |
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startAngle, angleExt, featureStore); |
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Curve inverseArc = |
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(Curve) GeometryLocator.getGeometryManager() |
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.create( |
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TYPES.CURVE, |
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editingProviderServices |
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.getSubType(featureStore)); |
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if (!point.equals(arco.getVertex(0))) { |
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for (int j = arco.getNumVertices() - 1; j >= 0; j--) { |
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inverseArc.addVertex(arco.getVertex(j)); |
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} |
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arco = inverseArc; |
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} |
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} catch (Exception e) { |
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throw new DrawServiceException(e); |
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} |
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antm = |
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-(nextPoint.getX() - center.getX()) |
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/ (nextPoint.getY() - center.getY()); |
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if (antm == Double.POSITIVE_INFINITY) { |
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antb = Double.NEGATIVE_INFINITY;
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if (nextPoint.getX() == 0) { |
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antb = 0.0;
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} |
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} else if (antm == Double.NEGATIVE_INFINITY) { |
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antb = Double.POSITIVE_INFINITY;
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if (nextPoint.getX() == 0) { |
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antb = 0.0;
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} |
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} else {
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antb = nextPoint.getY() - (antm * nextPoint.getX()); |
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} |
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// Draw geometries.
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if (addGeom) {
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geometries.addGeometry(lineAntPointToPoint); |
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geometries.addGeometry(center); |
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} |
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geometries.addGeometry(arco); |
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} else {
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try {
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Curve geometry = |
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editingProviderServices.createLine(point.getX(), |
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point.getY(), nextPoint.getX(), |
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nextPoint.getY(), featureStore); |
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geometries.addGeometry(geometry); |
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} catch (Exception e) { |
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throw new DrawServiceException(e); |
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} |
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Double[] antLineParams = getLineParams(point, nextPoint); |
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antm = antLineParams[0];
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antb = antLineParams[1];
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right = (nextPoint.getX() >= point.getX()); |
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} |
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} |
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return geometries;
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} |
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return null; |
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} |
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/**
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* @param surface
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* @return
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*/
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protected Surface closeSurfaceIfNecessary(Surface surface) {
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if (!isClose(surface) && surface != null) { |
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Point firstp = surface.getVertex(0); |
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firstp = (Point) firstp.cloneGeometry();
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surface.addVertex(firstp); |
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} |
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return surface;
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} |
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public DrawingStatus getDrawingStatus(Point mousePosition) |
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throws DrawServiceException {
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try {
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return calculatePolyline(mousePosition);
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} catch (Exception e) { |
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throw new DrawServiceException(e); |
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} |
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} |
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public void finishAndStore() throws FinishServiceException { |
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try {
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Geometry geometry = finish(); |
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if (geometry != null) { |
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editingProviderServices.insertGeometryIntoFeatureStore( |
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geometry, featureStore); |
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} |
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} catch (Exception e) { |
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throw new FinishServiceException(e); |
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} |
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} |
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public Geometry finish() throws FinishServiceException { |
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try {
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GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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GeometryType storeGeomType = |
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editingProviderServices.getGeomType(featureStore); |
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Line line = geomManager.createLine(storeGeomType.getSubType());
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calculateFinalGeometry(storeGeomType, line); |
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if (storeGeomType.isTypeOf(MULTICURVE)) {
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MultiCurve multiCurve = |
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geomManager.createMultiCurve(storeGeomType.getSubType()); |
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multiCurve.addCurve((Curve) line); |
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return multiCurve;
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} else {
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return line;
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} |
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} catch (BaseException e) {
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throw new FinishServiceException(e); |
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} |
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} |
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/**
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* Calculate the final geometry reversing the geometries of the
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* drawingStatus if needed.
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*
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* @param geometryType
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* @param orientablePrimitive
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* @throws DataException
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* @throws CreateGeometryException
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* @throws VectorEditingException
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*/
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protected void calculateFinalGeometry(GeometryType geometryType, |
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OrientablePrimitive orientablePrimitive) throws DataException,
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CreateGeometryException, VectorEditingException {
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DrawingStatus drawingStatus = calculatePolyline(null);
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Point vertexAnt = null; |
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for (Geometry geometry : drawingStatus.getGeometries()) {
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if (geometry instanceof Curve) { |
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Curve curve = (Curve) geometry; |
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for (int i = 0; i < curve.getNumVertices(); i++) { |
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if (vertexAnt == null |
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|| !vertexAnt.equals(curve.getVertex(i))) {
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orientablePrimitive.addVertex((Point) curve
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.getVertex(i)); |
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vertexAnt = curve.getVertex(i); |
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} |
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} |
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} |
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} |
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} |
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|
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/**
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* @param start
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* @param end
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* @return
|
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* @throws GeometryOperationNotSupportedException
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* @throws GeometryOperationException
|
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*/
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private static double getAngle(Point start, Point end) |
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throws GeometryOperationNotSupportedException,
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GeometryOperationException {
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double angle =
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Math.acos((end.getX() - start.getX()) / start.distance(end));
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|
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if (start.getY() > end.getY()) {
|
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angle = -angle; |
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} |
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|
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if (angle < 0) { |
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angle += (2 * Math.PI); |
| 418 |
} |
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|
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return angle;
|
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} |
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|
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/**
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* @param bisector
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* @param perpendicular
|
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* @param featureStore
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* @return
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* @throws CreateGeometryException
|
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* @throws DataException
|
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*/
|
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private Point getIntersection(Point[] bisector, Point[] perpendicular, |
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FeatureStore featureStore) throws CreateGeometryException,
|
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DataException {
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Point p1 = bisector[0]; |
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Point p2 = bisector[1]; |
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Point p3 = perpendicular[0]; |
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Point p4 = perpendicular[1]; |
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|
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double m1 = Double.POSITIVE_INFINITY; |
| 440 |
|
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if ((p2.getX() - p1.getX()) != 0) { |
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m1 = (p2.getY() - p1.getY()) / (p2.getX() - p1.getX()); |
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} |
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|
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double m2 = Double.POSITIVE_INFINITY; |
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|
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if ((p4.getX() - p3.getX()) != 0) { |
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m2 = (p4.getY() - p3.getY()) / (p4.getX() - p3.getX()); |
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} |
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|
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if ((m1 == Double.POSITIVE_INFINITY) |
| 452 |
&& (m2 == Double.POSITIVE_INFINITY)) {
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return null; |
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} |
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double b1 = p2.getY() - (m1 * p2.getX());
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double b2 = p4.getY() - (m2 * p4.getX());
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|
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if ((m1 != Double.POSITIVE_INFINITY) |
| 461 |
&& (m2 != Double.POSITIVE_INFINITY)) {
|
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if (m1 == m2) {
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return null; |
| 464 |
} |
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|
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double x = (b2 - b1) / (m1 - m2);
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|
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return editingProviderServices.createPoint(x, (m1 * x) + b1,
|
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featureStore); |
| 470 |
} else if (m1 == Double.POSITIVE_INFINITY) { |
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double x = p1.getX();
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|
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return editingProviderServices.createPoint(x, (m2 * x) + b2,
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featureStore); |
| 475 |
} else if (m2 == Double.POSITIVE_INFINITY) { |
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double x = p3.getX();
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|
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return editingProviderServices.createPoint(x, (m1 * x) + b1,
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featureStore); |
| 480 |
} |
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|
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return null; |
| 483 |
} |
| 484 |
|
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/**
|
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* @param point
|
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* @param nextPoint
|
| 488 |
* @return
|
| 489 |
*/
|
| 490 |
private Double[] getLineParams(Point point, Point nextPoint) { |
| 491 |
Double[] lineParams = new Double[2]; |
| 492 |
double denom = nextPoint.getX() - point.getX();
|
| 493 |
if (denom != 0) { |
| 494 |
lineParams[0] = (nextPoint.getY() - point.getY()) / denom;
|
| 495 |
lineParams[1] = point.getY() - (lineParams[0] * point.getX()); |
| 496 |
} else {
|
| 497 |
if (nextPoint.getY() >= point.getY()) {
|
| 498 |
lineParams[0] = Double.POSITIVE_INFINITY; |
| 499 |
lineParams[1] = Double.NEGATIVE_INFINITY; |
| 500 |
if (point.getX() == 0) { |
| 501 |
lineParams[1] = 0.0; |
| 502 |
} |
| 503 |
} else {
|
| 504 |
lineParams[0] = Double.NEGATIVE_INFINITY; |
| 505 |
lineParams[1] = Double.POSITIVE_INFINITY; |
| 506 |
if (point.getX() == 0) { |
| 507 |
lineParams[1] = 0.0; |
| 508 |
} |
| 509 |
} |
| 510 |
} |
| 511 |
return lineParams;
|
| 512 |
} |
| 513 |
|
| 514 |
/**
|
| 515 |
* @param p1
|
| 516 |
* @param p2
|
| 517 |
* @param featureStore
|
| 518 |
* @return
|
| 519 |
* @throws CreateGeometryException
|
| 520 |
* @throws DataException
|
| 521 |
*/
|
| 522 |
private Point getMidPoint(Point p1, Point p2, FeatureStore featureStore) |
| 523 |
throws CreateGeometryException, DataException {
|
| 524 |
double x = (p1.getX() + p2.getX()) / 2; |
| 525 |
double y = (p1.getY() + p2.getY()) / 2; |
| 526 |
return editingProviderServices.createPoint(x, y, featureStore);
|
| 527 |
} |
| 528 |
|
| 529 |
public String getName() { |
| 530 |
return PolylineEditingProviderFactory.PROVIDER_NAME;
|
| 531 |
} |
| 532 |
|
| 533 |
/**
|
| 534 |
* @param i
|
| 535 |
* @return
|
| 536 |
*/
|
| 537 |
private MyPolyLinePoint getNextPoint(int i) { |
| 538 |
if (!values.isEmpty() && i < values.size() - 1) { |
| 539 |
return values.get(i + 1); |
| 540 |
} |
| 541 |
return null; |
| 542 |
} |
| 543 |
|
| 544 |
public List<EditingServiceParameter> getParameters() { |
| 545 |
List<EditingServiceParameter> list =
|
| 546 |
new ArrayList<EditingServiceParameter>(); |
| 547 |
list.add(points); |
| 548 |
return list;
|
| 549 |
} |
| 550 |
|
| 551 |
/**
|
| 552 |
* @param m
|
| 553 |
* @param b
|
| 554 |
* @param perp
|
| 555 |
* @param featureStore
|
| 556 |
* @return
|
| 557 |
* @throws CreateGeometryException
|
| 558 |
* @throws DataException
|
| 559 |
*/
|
| 560 |
private Point[] getPerpendicular(Double m, Double b, Point perp, |
| 561 |
FeatureStore featureStore) throws CreateGeometryException,
|
| 562 |
DataException {
|
| 563 |
if (m == Double.POSITIVE_INFINITY) { |
| 564 |
Point[] res = new Point[2]; |
| 565 |
res[0] =
|
| 566 |
editingProviderServices.createPoint(0, perp.getY(),
|
| 567 |
featureStore); |
| 568 |
res[1] =
|
| 569 |
editingProviderServices.createPoint(1, perp.getY(),
|
| 570 |
featureStore); |
| 571 |
return res;
|
| 572 |
} else if (m == Double.NEGATIVE_INFINITY) { |
| 573 |
Point[] res = new Point[2]; |
| 574 |
res[0] =
|
| 575 |
editingProviderServices.createPoint(1, perp.getY(),
|
| 576 |
featureStore); |
| 577 |
res[1] =
|
| 578 |
editingProviderServices.createPoint(0, perp.getY(),
|
| 579 |
featureStore); |
| 580 |
return res;
|
| 581 |
} else {
|
| 582 |
// Pendiente de la recta perpendicular
|
| 583 |
Double m1 = -1 / m; |
| 584 |
|
| 585 |
// b de la funcion de la recta perpendicular
|
| 586 |
Double b1 = perp.getY() - (m1 * perp.getX());
|
| 587 |
|
| 588 |
// Obtenemos un par de puntos
|
| 589 |
Point[] res = new Point[2]; |
| 590 |
|
| 591 |
if (Double.isInfinite(m1)) { |
| 592 |
res[0] =
|
| 593 |
editingProviderServices.createPoint(perp.getX(), 0.0,
|
| 594 |
featureStore); |
| 595 |
res[1] =
|
| 596 |
editingProviderServices.createPoint(perp.getX(), |
| 597 |
perp.getY(), featureStore); |
| 598 |
} else {
|
| 599 |
res[0] =
|
| 600 |
editingProviderServices.createPoint(0, 0.0 + b1, |
| 601 |
featureStore); |
| 602 |
res[1] =
|
| 603 |
editingProviderServices.createPoint(perp.getX(), |
| 604 |
(m1 * perp.getX()) + b1, featureStore); |
| 605 |
} |
| 606 |
|
| 607 |
return res;
|
| 608 |
} |
| 609 |
} |
| 610 |
|
| 611 |
/**
|
| 612 |
* @param surface
|
| 613 |
* @return
|
| 614 |
*/
|
| 615 |
private boolean isClose(Surface surface) { |
| 616 |
|
| 617 |
if (surface != null) { |
| 618 |
Point firstPoint = surface.getVertex(0); |
| 619 |
Point lastPoint = surface.getVertex(surface.getNumVertices() - 1); |
| 620 |
if (firstPoint.equals(lastPoint)) {
|
| 621 |
return true; |
| 622 |
} |
| 623 |
} |
| 624 |
return false; |
| 625 |
} |
| 626 |
|
| 627 |
public EditingServiceParameter next() {
|
| 628 |
if (values.size() >= 2) { |
| 629 |
if (arcMode) {
|
| 630 |
points |
| 631 |
.setDescription(i18nManager |
| 632 |
.getTranslation("inserts_L_to_change_to_line_mode_double_click_to_finish_indate_new_point"));
|
| 633 |
|
| 634 |
} else {
|
| 635 |
points |
| 636 |
.setDescription(i18nManager |
| 637 |
.getTranslation("inserts_A_to_change_to_arc_mode_double_click_to_finish_indate_new_point"));
|
| 638 |
} |
| 639 |
} |
| 640 |
return points;
|
| 641 |
} |
| 642 |
|
| 643 |
public void start() throws StartServiceException { |
| 644 |
stop(); |
| 645 |
values = new ArrayList<MyPolyLinePoint>(); |
| 646 |
|
| 647 |
} |
| 648 |
|
| 649 |
public void stop() { |
| 650 |
if (values != null) { |
| 651 |
values.clear(); |
| 652 |
} |
| 653 |
points.setDescription(i18nManager.getTranslation("indicate_new_point"));
|
| 654 |
arcMode = false;
|
| 655 |
} |
| 656 |
|
| 657 |
/**
|
| 658 |
* @param param
|
| 659 |
* @param value
|
| 660 |
*/
|
| 661 |
private void validateAndInsertValue(EditingServiceParameter param, |
| 662 |
Object value) throws InvalidEntryException { |
| 663 |
if (value instanceof String) { |
| 664 |
if (values.size() >= 2) { |
| 665 |
if (((String) value).equalsIgnoreCase("A") |
| 666 |
|| ((String) value).equalsIgnoreCase("L")) { |
| 667 |
if (((String) value).equalsIgnoreCase("A")) { |
| 668 |
arcMode = true;
|
| 669 |
} else if (((String) value).equalsIgnoreCase("L")) { |
| 670 |
arcMode = false;
|
| 671 |
} |
| 672 |
if (values.size() > 0) { |
| 673 |
values.get(values.size() - 1).setArcMode(arcMode);
|
| 674 |
return;
|
| 675 |
} |
| 676 |
} else {
|
| 677 |
throw new InvalidEntryException(null); |
| 678 |
} |
| 679 |
|
| 680 |
} else {
|
| 681 |
throw new InvalidEntryException(null); |
| 682 |
} |
| 683 |
} else if (param == points && value instanceof Point) { |
| 684 |
values.add(new MyPolyLinePoint((Point) value, arcMode)); |
| 685 |
} |
| 686 |
} |
| 687 |
|
| 688 |
public void setValue(Object value) throws InvalidEntryException { |
| 689 |
EditingServiceParameter param = next(); |
| 690 |
validateAndInsertValue(param, value); |
| 691 |
} |
| 692 |
|
| 693 |
} |