gvsig-vectorediting / org.gvsig.vectorediting / trunk / org.gvsig.vectorediting / org.gvsig.vectorediting.lib / org.gvsig.vectorediting.lib.prov / org.gvsig.vectorediting.lib.prov.editvertex / src / main / java / org / gvsig / vectorediting / lib / prov / editvertex / operation / ArcEditVertexOperation.java @ 575
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package org.gvsig.vectorediting.lib.prov.editvertex.operation; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.gvsig.fmap.geom.Geometry; |
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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.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.Arc; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.Line; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.primitive.Primitive; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
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import org.gvsig.vectorediting.lib.spi.DefaultDrawingStatus; |
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import org.gvsig.vectorediting.lib.spi.EditingProviderLocator; |
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import org.gvsig.vectorediting.lib.spi.EditingProviderManager; |
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public class ArcEditVertexOperation implements EditVertexOperation { |
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public ArcEditVertexOperation() {
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// TODO Auto-generated constructor stub
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} |
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public Geometry insertVertex(Primitive geom, int index) |
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throws CreateGeometryException {
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return null; |
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} |
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public Geometry removeVertex(Primitive geom, int index) |
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throws CreateGeometryException {
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return null; |
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} |
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public Geometry moveVertex(Primitive geom, int index, Point point) |
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throws GeometryOperationNotSupportedException,
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GeometryOperationException, CreateGeometryException { |
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GeometryManager geometryManager = GeometryLocator.getGeometryManager(); |
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Arc arc = (Arc) geom; |
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Arc result = (Arc) arc.cloneGeometry(); |
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Point center = result.getCenterPoint();
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if(center == null){ |
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Envelope envelope = arc.getEnvelope(); |
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center = geometryManager.createPoint(envelope.getCenter(0), envelope.getCenter(1), geom.getGeometryType().getSubType()); |
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} |
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Point initPoint = result.getInitPoint();
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Point middlePoint = result.getMiddlePoint();
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Point endPoint = result.getEndPoint();
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double radius = center.distance(initPoint);
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double angle = getAngle(center, point);
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switch (index) {
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case 0: |
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double dx = point.getX()-center.getX();
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double dy = point.getY()-center.getY();
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initPoint.setX(initPoint.getX()+dx); |
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initPoint.setY(initPoint.getY()+dy); |
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middlePoint.setX(middlePoint.getX()+dx); |
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middlePoint.setY(middlePoint.getY()+dy); |
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endPoint.setX(endPoint.getX()+dx); |
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endPoint.setY(endPoint.getY()+dy); |
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result.setPoints(initPoint, middlePoint, endPoint); |
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break;
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case 1: |
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initPoint.setX(center.getX()+Math.cos(angle)*radius);
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initPoint.setY(center.getY()+Math.sin(angle)*radius);
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result.setPoints(initPoint, middlePoint, endPoint); |
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break;
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case 2: |
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endPoint.setX(center.getX()+Math.cos(angle)*radius);
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endPoint.setY(center.getY()+Math.sin(angle)*radius);
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result.setPoints(initPoint, middlePoint, endPoint); |
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break;
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case 3: |
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middlePoint.setX(center.getX()+Math.cos(angle)*radius);
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middlePoint.setY(center.getY()+Math.sin(angle)*radius);
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result.setPoints(initPoint, middlePoint, endPoint); |
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break;
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default:
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break;
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} |
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return result;
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} |
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public List<Point> getVertexesList(Primitive geom) throws CreateGeometryException { |
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GeometryManager geometryManager = GeometryLocator.getGeometryManager(); |
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ArrayList<Point> vertexList = new ArrayList<Point>(); |
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Arc arc = (Arc) geom; |
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Point center = arc.getCenterPoint();
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if(center == null){ |
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Envelope envelope = arc.getEnvelope(); |
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center = geometryManager.createPoint(envelope.getCenter(0), envelope.getCenter(1), geom.getGeometryType().getSubType()); |
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} |
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vertexList.add(center); |
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vertexList.add(arc.getInitPoint()); |
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vertexList.add(arc.getEndPoint()); |
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vertexList.add(arc.getMiddlePoint()); |
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return vertexList;
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} |
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public int getNumVertex(Primitive geom) { |
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return 4; |
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} |
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public boolean canInsertVertex(Primitive geom, int index) { |
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return false; |
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} |
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public boolean canRemoveVertex(Primitive geom, int index) { |
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return false; |
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} |
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public boolean canMoveVertex(int index, Point point) { |
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return true; |
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} |
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public 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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if (start.getY() > end.getY()) {
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angle = -angle; |
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} |
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if (angle < 0) { |
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angle += (2 * Math.PI); |
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} |
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return angle;
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} |
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public void addToDrawingStatus(DefaultDrawingStatus drawingStatus, |
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Primitive primitive) throws CreateGeometryException,
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GeometryOperationNotSupportedException, GeometryOperationException { |
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GeometryManager geometryManager = GeometryLocator.getGeometryManager(); |
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EditingProviderManager editingProviderManager = |
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EditingProviderLocator.getProviderManager(); |
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ISymbol auxiliaryLineSymbolEditing = |
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editingProviderManager.getSymbol("auxiliary-line-symbol-editing");
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ISymbol lineSymbolEditing = |
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editingProviderManager.getSymbol("line-symbol-editing");
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ISymbol pointSymbolEditing = |
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editingProviderManager.getSymbol("point-symbol-editing");
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Arc arc = (Arc)primitive; |
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Point center = arc.getCenterPoint();
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if(center == null){ |
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Envelope envelope = arc.getEnvelope(); |
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center = geometryManager.createPoint(envelope.getCenter(0), envelope.getCenter(1), primitive.getGeometryType().getSubType()); |
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} |
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Line auxLine = geometryManager.createLine(primitive.getGeometryType().getSubType());
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auxLine.setPoints(center,arc.getInitPoint()); |
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drawingStatus.addStatus(auxLine, auxiliaryLineSymbolEditing, "");
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Line auxLine2 = geometryManager.createLine(primitive.getGeometryType().getSubType());
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auxLine2.setPoints(center,arc.getEndPoint()); |
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drawingStatus.addStatus(auxLine2, auxiliaryLineSymbolEditing, "");
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Line auxLine3 = geometryManager.createLine(primitive.getGeometryType().getSubType());
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auxLine3.setPoints(center,arc.getMiddlePoint()); |
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drawingStatus.addStatus(auxLine3, auxiliaryLineSymbolEditing, "");
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drawingStatus.addStatus(arc.getInitPoint(), pointSymbolEditing, "");
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drawingStatus.addStatus(arc.getEndPoint(), pointSymbolEditing, "");
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drawingStatus.addStatus(arc.getMiddlePoint(), pointSymbolEditing, "");
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drawingStatus.addStatus(primitive, lineSymbolEditing, "");
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} |
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} |