Circle.java

/*
 *  Copyright (C) 2014  Alfons Wirtz  
 *   website www.freerouting.net
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 General Public License at <http://www.gnu.org/licenses/> 
 *   for more details.
 *
 * Circle.java
 *
 * Created on 20. Mai 2004, 09:22
 */

package designformats.specctra;

import geometry.planar.IntPoint;
import datastructures.IndentFileWriter;
import datastructures.IdentifierType;

/**
 * Class for reading and writing circle scopes from dsn-files.
 *
 * @author  alfons
 */
public class Circle extends Shape
{
    /**
     * Creates a new circle from the input parameters.
     * p_coor is an array of dimension 3.
     * p_coor [0] is the radius of the circle,
     * p_coor [1] is the x coordinate of the circle,
     * p_coor [2] is the y coordinate of the circle.
     */
    public Circle(Layer p_layer, double []  p_coor)
    {
        super(p_layer);
        coor = p_coor;
    }
    
    public Circle(Layer p_layer, double p_radius, double p_center_x, double p_center_y)
    {
        super(p_layer);
        coor = new double[3];
        coor[0] = p_radius;
        coor[1] = p_center_x;
        coor[2] = p_center_y;
    }
    
    public geometry.planar.Shape transform_to_board(CoordinateTransform p_coordinate_transform)
    {
        double [] location = new double[2];
        location[0] = coor[1];
        location[1] = coor[2];
        IntPoint center  = p_coordinate_transform.dsn_to_board(location).round();
        int radius = (int) Math.round(p_coordinate_transform.dsn_to_board(coor[0]) / 2);
        return new geometry.planar.Circle(center, radius);
    }
    
    public geometry.planar.Shape transform_to_board_rel(CoordinateTransform p_coordinate_transform)
    {
        int [] new_coor = new int[3];
        new_coor[0] = (int) Math.round(p_coordinate_transform.dsn_to_board(coor[0]) / 2);
        for (int i = 1; i < 3; ++i)
        {
            new_coor[i] = (int) Math.round(p_coordinate_transform.dsn_to_board(coor[i]));
        }
        return new geometry.planar.Circle(new IntPoint(new_coor[1], new_coor[2]), new_coor[0]);
    }
    
    public Rectangle bounding_box()
    {
        double[]  bounds = new double[4];
        bounds[0] = coor[1] - coor[0];
        bounds[1] = coor[2] - coor[0];
        bounds[2] = coor[1] + coor[0];
        bounds[3] = coor[2] + coor[0];
        return new Rectangle(layer, bounds);
    }
    
    public void write_scope(IndentFileWriter p_file, IdentifierType p_identifier_type) throws java.io.IOException
    {
        p_file.new_line();
        p_file.write("(circle ");
        p_identifier_type.write(this.layer.name, p_file);
        for (int i = 0; i < coor.length; ++i)
        {
            p_file.write(" ");
            p_file.write(new Double(coor[i]).toString());
        }
        p_file.write(")");
    }
    
    public void write_scope_int(IndentFileWriter p_file, IdentifierType p_identifier_type) throws java.io.IOException
    {
        p_file.new_line();
        p_file.write("(circle ");
        p_identifier_type.write(this.layer.name, p_file);
        for (int i = 0; i < coor.length; ++i)
        {
            p_file.write(" ");
            Integer curr_coor = (int) Math.round(coor[i]);
            p_file.write(curr_coor.toString());
        }
        p_file.write(")");
    }
    
    public final double[] coor;
}