2 * PROJECT: NyARToolkit
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3 * --------------------------------------------------------------------------------
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4 * This work is based on the original ARToolKit developed by
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7 * HITLab, University of Washington, Seattle
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8 * http://www.hitl.washington.edu/artoolkit/
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10 * The NyARToolkit is Java edition ARToolKit class library.
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11 * Copyright (C)2008-2009 Ryo Iizuka
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13 * This program is free software: you can redistribute it and/or modify
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14 * it under the terms of the GNU General Public License as published by
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15 * the Free Software Foundation, either version 3 of the License, or
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16 * (at your option) any later version.
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18 * This program is distributed in the hope that it will be useful,
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19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 * GNU General Public License for more details.
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23 * You should have received a copy of the GNU General Public License
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24 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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26 * For further information please contact.
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27 * http://nyatla.jp/nyatoolkit/
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28 * <airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp>
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31 package jp.nyatla.nyartoolkit.core.types;
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34 * 0=dx*x+dy*y+cのパラメータを格納します。
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35 * x,yの増加方向は、x=L→R,y=B→Tです。
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38 public class NyARLinear
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40 public double dx;//dx軸の増加量
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41 public double dy;//dy軸の増加量
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42 public double c;//切片
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43 public static NyARLinear[] createArray(int i_number)
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45 NyARLinear[] ret=new NyARLinear[i_number];
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46 for(int i=0;i<i_number;i++)
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48 ret[i]=new NyARLinear();
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52 public final void copyFrom(NyARLinear i_source)
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54 this.dx=i_source.dx;
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55 this.dy=i_source.dy;
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66 public final static boolean crossPos(NyARLinear l_line_i,NyARLinear l_line_2,NyARDoublePoint2d o_point)
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68 final double w1 = l_line_2.dy * l_line_i.dx - l_line_i.dy * l_line_2.dx;
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72 o_point.x = (l_line_2.dx * l_line_i.c - l_line_i.dx * l_line_2.c) / w1;
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73 o_point.y = (l_line_i.dy * l_line_2.c - l_line_2.dy * l_line_i.c) / w1;
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