svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / primitive / curve / arc / AbstractArc.java @ 42356
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/* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2015 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.fmap.geom.jts.primitive.curve.arc; |
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import java.awt.Shape; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.PathIterator; |
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import org.cresques.cts.ICoordTrans; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.jts.gputils.DefaultGeneralPathX; |
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import org.gvsig.fmap.geom.jts.primitive.curve.AbstractCurve; |
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import org.gvsig.fmap.geom.jts.primitive.point.PointJTS; |
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import org.gvsig.fmap.geom.jts.util.UtilFunctions; |
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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.GeneralPathX; |
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import org.gvsig.fmap.geom.primitive.Point; |
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/**
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* @author fdiaz
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*
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*/
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public abstract class AbstractArc extends AbstractCurve implements Arc { |
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/**
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*
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*/
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private static final long serialVersionUID = 454301669807892457L; |
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/**
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* @param type
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* @param subtype
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*/
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protected AbstractArc(int subtype) { |
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super(Geometry.TYPES.ARC, subtype);
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} |
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protected Point init; |
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/**
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* This is the middle point (belongs to the arc), not the center
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* of the circle/ellipse
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*/
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protected Point middle; |
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protected Point end; |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Curve#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
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*/
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public void setPoints(Point initialPoint, Point endPoint) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getCoordinateAt(int, int)
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*/
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public double getCoordinateAt(int index, int dimension) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setCoordinateAt(int, int, double)
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*/
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public void setCoordinateAt(int index, int dimension, double value) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(org.gvsig.fmap.geom.primitive.Point)
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*/
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public void addVertex(Point point) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double)
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*/
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public void addVertex(double x, double y) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double, double)
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*/
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public void addVertex(double x, double y, double z) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#removeVertex(int)
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*/
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public void removeVertex(int index) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getVertex(int)
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*/
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public Point getVertex(int index) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getNumVertices()
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*/
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public int getNumVertices() { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#insertVertex(int, org.gvsig.fmap.geom.primitive.Point)
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*/
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public void insertVertex(int index, Point p) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setVertex(int, org.gvsig.fmap.geom.primitive.Point)
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*/
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public void setVertex(int index, Point p) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#setGeneralPath(org.gvsig.fmap.geom.primitive.GeneralPathX)
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*/
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public void setGeneralPath(GeneralPathX generalPathX) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addMoveToVertex(org.gvsig.fmap.geom.primitive.Point)
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*/
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public void addMoveToVertex(Point point) { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#closePrimitive()
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*/
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public void closePrimitive() { |
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String message = "Calling deprecated method setPoints of a arc"; |
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notifyDeprecated(message); |
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throw new UnsupportedOperationException(message); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#ensureCapacity(int)
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*/
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public void ensureCapacity(int capacity) { |
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// TODO Auto-generated method stub
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#reProject(org.cresques.cts.ICoordTrans)
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*/
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public void reProject(ICoordTrans ct) { |
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//FIXME: Esto solo ser?a correcto para transformaciones de traslaci?n, rotaci?n y escala
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// Ser?a incorrecto para las de deformaci?n en cizallamiento
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init.reProject(ct); |
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middle.reProject(ct); |
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end.reProject(ct); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#transform(java.awt.geom.AffineTransform)
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*/
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public void transform(AffineTransform at) { |
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//FIXME: Esto solo ser?a correcto para transformaciones de traslaci?n, rotaci?n y escala
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// Ser?a incorrecto para las de deformaci?n en cizallamiento
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init.transform(at); |
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middle.transform(at); |
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end.transform(at); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#getDimension()
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*/
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public int getDimension() { |
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return init.getDimension();
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#getShape(java.awt.geom.AffineTransform)
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*/
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public Shape getShape(AffineTransform affineTransform) { |
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return new DefaultGeneralPathX(getPathIterator(affineTransform),false,0); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#getShape()
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*/
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public Shape getShape() { |
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return getShape(null); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.jts.GeometryJTS#is3D()
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*/
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public boolean is3D() { |
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return ((PointJTS)init).is3D();
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} |
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/**
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* @param initialPoint
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* @return
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*/
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protected abstract Point fixPoint(Point point); |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
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*/
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public void setPoints(Point startPoint, Point midPoint, Point endPoint) { |
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init = fixPoint(startPoint); |
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middle = fixPoint(midPoint); |
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end = fixPoint(endPoint); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#getInitPoint()
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*/
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public Point getInitPoint() { |
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return init;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#getEndPoint()
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*/
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public Point getEndPoint() { |
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return end;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#getMiddlePoint()
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*/
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public Point getMiddlePoint() { |
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return middle;
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} |
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/**
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* Leaves the angle between PI and -PI
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* @param angle (radians)
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* @return
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*/
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protected double normalizeAngle(double angle) { |
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if (angle > -Math.PI && angle <= Math.PI) { |
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return angle;
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} |
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if (angle == Double.NEGATIVE_INFINITY || angle == Double.POSITIVE_INFINITY) { |
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return 0; |
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} |
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double abs_ang = Math.abs(angle); |
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double remove = Math.floor(abs_ang / (2 * Math.PI)); |
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remove = remove * 2 * Math.PI; |
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double resp = 0; |
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if (angle > 0) { |
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resp = angle - remove; |
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if (resp > Math.PI) { |
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// final adjustment
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resp = resp - 2 * Math.PI; |
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} |
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} else {
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resp = angle + remove; |
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if (resp <= -Math.PI) { |
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// final adjustment
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resp = resp + 2 * Math.PI; |
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} |
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} |
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return resp;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartExt(org.gvsig.fmap.geom.primitive.Point, double, double, double)
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*/
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public void setPointsStartExt(Point center, double radius, double startAngle, double angleExt) { |
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setPoints(center, radius, startAngle, angleExt); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartEnd(org.gvsig.fmap.geom.primitive.Point, double, double, double)
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*/
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public void setPointsStartEnd(Point center, double radius, double startAngle, double endAngle) { |
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if (startAngle == endAngle) {
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setPointsStartExt(center, radius, startAngle, 0);
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} else {
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/*
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* Normalize then force clockwise:
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*/
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double norm_start = normalizeAngle(startAngle);
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double norm_end = normalizeAngle(endAngle);
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double ang_ext = 0; |
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// clockwise
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// ang_ext must be positive
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if (norm_start >= norm_end) {
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ang_ext = norm_start - norm_end; |
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} else {
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ang_ext = 2 * Math.PI - (norm_end - norm_start); |
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} |
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setPointsStartExt(center, radius, startAngle, ang_ext); |
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// finally call other method with ang_ext
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} |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#getGeneralPath()
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*/
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public GeneralPathX getGeneralPath() {
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GeneralPathX gp = new DefaultGeneralPathX(getPathIterator(null, getManager().getFlatness()), is3D(), 0.0); |
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return gp;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform)
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*/
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public PathIterator getPathIterator(AffineTransform at) { |
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return getPathIterator(at, getManager().getFlatness());
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform, double)
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*/
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public PathIterator getPathIterator(AffineTransform at, double flatness) { |
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java.awt.geom.Point2D.Double p1 = new java.awt.geom.Point2D.Double(init.getX(), init.getY());
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java.awt.geom.Point2D.Double p2 = new java.awt.geom.Point2D.Double(middle.getX(), middle.getY());
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java.awt.geom.Point2D.Double p3 = new java.awt.geom.Point2D.Double(end.getX(), end.getY());
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(p1, p2, p3); |
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if (arco == null) { |
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logger.info("Did not set arc points (probably aligned points): " + p1.getX() + " " + p1.getY() + " :: " |
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+ p2.getX() + " " + p2.getY() + " :: " + p3.getX() + " " + p3.getY()); |
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throw new IllegalArgumentException("Did not set arc points (probably aligned points)."); |
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} |
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return arco.getPathIterator(at, flatness);
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.jts.GeometryJTS#flip()
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*/
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public void flip() throws GeometryOperationNotSupportedException, GeometryOperationException { |
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Point aux = init;
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init = end; |
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end = aux; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#getStartAngle()
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*/
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public double getStartAngle() throws GeometryOperationNotSupportedException, GeometryOperationException { |
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return getAngle(getCenterPoint(), getInitPoint());
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#getEndAngle()
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*/
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public double getEndAngle() throws GeometryOperationNotSupportedException, GeometryOperationException { |
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return getAngle(getCenterPoint(), getEndPoint());
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} |
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private double getAngle(Point start, Point end) throws GeometryOperationNotSupportedException, GeometryOperationException { |
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double angle = 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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} |