/**
 * Utilities used by uk.ac.leeds.ccg.andyt.gws library that might be more generally useful.
 * Copyright (C) 2005 Andy Turner, CCG, University of Leeds, UK.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
package uk.ac.leeds.ccg.andyt.gws.utilities;
// java dependencies
import java.awt.geom.Point2D;
import java.math.BigDecimal;
// uk.ac.leeds.ccg.andyt.ext dependencies
import uk.ac.leeds.ccg.andyt.ext.math.BigDecimal0;

/**
 * A class like Point2D but with coordinates stored as BigDecimals.
 */
public class Point2DBigDecimal {
    
    private BigDecimal x;
    private BigDecimal y;
    
    /** Creates a new instance of BigDecimalPoint */
    public Point2DBigDecimal( BigDecimal x, BigDecimal y ) {
        this.x = x;
        this.y = y;        
    }
    
    /** Creates a new instance of BigDecimalPoint */
    public Point2DBigDecimal( Point2D.Double point2DDouble ) {
        this.x = new BigDecimal( point2DDouble.getX() );
        this.y = new BigDecimal( point2DDouble.getY() );
    }
    
    public BigDecimal getX() {
        return this.x;
    }
    
    public BigDecimal getY() {
        return this.y;
    }
    
    /**
     * Returns the distance form Point2DBigDecimal to this as a BigDecimal
     */
    public BigDecimal distance( Point2DBigDecimal point2DBigDecimal, int decimalPlaces ) {
        BigDecimal xdiff = this.x.subtract( point2DBigDecimal.getX() );
        BigDecimal ydiff = this.y.subtract( point2DBigDecimal.getY() );
        //return BigDecimal0.sqrt0( ( xdiff.multiply( xdiff ) ).add( ydiff.multiply( ydiff ) ), Math.max( xdiff.scale(), ydiff.scale() ) + 10 );
        return BigDecimal0.sqrt0( ( xdiff.multiply( xdiff ) ).add( ydiff.multiply( ydiff ) ), decimalPlaces );
    }
}