tags/2.0.0/src/jp/nyatla/nyartoolkit/core/param/NyARParam.java

   1 /* \r
   2  * PROJECT: NyARToolkit\r
   3  * --------------------------------------------------------------------------------\r
   4  * This work is based on the original ARToolKit developed by\r
   5  *   Hirokazu Kato\r
   6  *   Mark Billinghurst\r
   7  *   HITLab, University of Washington, Seattle\r
   8  * http://www.hitl.washington.edu/artoolkit/\r
   9  *\r
  10  * The NyARToolkit is Java version ARToolkit class library.\r
  11  * Copyright (C)2008 R.Iizuka\r
  12  *\r
  13  * This program is free software; you can redistribute it and/or\r
  14  * modify it under the terms of the GNU General Public License\r
  15  * as published by the Free Software Foundation; either version 2\r
  16  * of the License, or (at your option) any later version.\r
  17  * \r
  18  * This program is distributed in the hope that it will be useful,\r
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  21  * GNU General Public License for more details.\r
  22  * \r
  23  * You should have received a copy of the GNU General Public License\r
  24  * along with this framework; if not, write to the Free Software\r
  25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
  26  * \r
  27  * For further information please contact.\r
  28  *      http://nyatla.jp/nyatoolkit/\r
  29  *      <airmail(at)ebony.plala.or.jp>\r
  30  * \r
  31  */\r
  32 package jp.nyatla.nyartoolkit.core.param;\r
  33 \r
  34 import java.io.*;\r
  35 import java.nio.*;\r
  36 \r
  37 import jp.nyatla.nyartoolkit.NyARException;\r
  38 import jp.nyatla.nyartoolkit.core.types.*;\r
  39 \r
  40 /**\r
  41  * typedef struct { int xsize, ysize; double mat[3][4]; double dist_factor[4]; } ARParam;\r
  42  * NyARの動作パラメータを格納するクラス\r
  43  *\r
  44  */\r
  45 public class NyARParam\r
  46 {\r
  47         protected NyARIntSize _screen_size=new NyARIntSize();\r
  48         private static final int SIZE_OF_PARAM_SET = 4 + 4 + (3 * 4 * 8) + (4 * 8);\r
  49         private NyARCameraDistortionFactor _dist=new NyARCameraDistortionFactor();\r
  50         private NyARPerspectiveProjectionMatrix _projection_matrix=new NyARPerspectiveProjectionMatrix();\r
  51 \r
  52         public NyARIntSize getScreenSize()\r
  53         {\r
  54                 return this._screen_size;\r
  55         }\r
  56 \r
  57         public NyARPerspectiveProjectionMatrix getPerspectiveProjectionMatrix()\r
  58         {\r
  59                 return this._projection_matrix;\r
  60         }\r
  61         public NyARCameraDistortionFactor getDistortionFactor()\r
  62         {\r
  63                 return this._dist;\r
  64         }\r
  65 \r
  66         /**\r
  67          * ARToolKit標準ファイルから1個目の設定をロードする。\r
  68          * \r
  69          * @param i_filename\r
  70          * @throws NyARException\r
  71          */\r
  72         public void loadARParamFromFile(String i_filename) throws NyARException\r
  73         {\r
  74                 try {\r
  75                         loadARParam(new FileInputStream(i_filename));\r
  76                 } catch (Exception e) {\r
  77                         throw new NyARException(e);\r
  78                 }\r
  79         }\r
  80 \r
  81         /**\r
  82          * int arParamChangeSize( ARParam *source, int xsize, int ysize, ARParam *newparam );\r
  83          * 関数の代替関数 サイズプロパティをi_xsize,i_ysizeに変更します。\r
  84          * @param i_xsize\r
  85          * @param i_ysize\r
  86          * @param newparam\r
  87          * @return\r
  88          * \r
  89          */\r
  90         public void changeScreenSize(int i_xsize, int i_ysize)\r
  91         {\r
  92                 final double scale = (double) i_xsize / (double) (this._screen_size.w);// scale = (double)xsize / (double)(source->xsize);\r
  93                 //スケールを変更\r
  94                 this._dist.changeScale(scale);\r
  95                 this._projection_matrix.changeScale(scale);\r
  96                 //for (int i = 0; i < 4; i++) {\r
  97                 //      array34[0 * 4 + i] = array34[0 * 4 + i] * scale;// newparam->mat[0][i]=source->mat[0][i]* scale;\r
  98                 //      array34[1 * 4 + i] = array34[1 * 4 + i] * scale;// newparam->mat[1][i]=source->mat[1][i]* scale;\r
  99                 //      array34[2 * 4 + i] = array34[2 * 4 + i];// newparam->mat[2][i] = source->mat[2][i];\r
 100                 //}\r
 101 \r
 102 \r
 103                 this._screen_size.w = i_xsize;// newparam->xsize = xsize;\r
 104                 this._screen_size.h = i_ysize;// newparam->ysize = ysize;\r
 105                 return;\r
 106         }\r
 107 \r
 108 \r
 109         /**\r
 110          * int arParamLoad( const char *filename, int num, ARParam *param, ...);\r
 111          * i_streamの入力ストリームからi_num個の設定を読み込み、パラメタを配列にして返します。\r
 112          * \r
 113          * @param i_stream\r
 114          * @throws Exception\r
 115          */\r
 116         public void loadARParam(InputStream i_stream)throws NyARException\r
 117         {\r
 118                 try {\r
 119                         byte[] buf = new byte[SIZE_OF_PARAM_SET];\r
 120                         i_stream.read(buf);\r
 121                         double[] tmp=new double[12];\r
 122 \r
 123                         // バッファを加工\r
 124                         ByteBuffer bb = ByteBuffer.wrap(buf);\r
 125                         bb.order(ByteOrder.BIG_ENDIAN);\r
 126                         this._screen_size.w = bb.getInt();\r
 127                         this._screen_size.h = bb.getInt();\r
 128                         //double値を12個読み込む\r
 129                         for(int i=0;i<12;i++){\r
 130                                 tmp[i]=bb.getDouble();\r
 131                         }\r
 132                         //Projectionオブジェクトにセット\r
 133                         this._projection_matrix.setValue(tmp);\r
 134                         //double値を4個読み込む\r
 135                         for (int i = 0; i < 4; i++) {\r
 136                                 tmp[i]=bb.getDouble();\r
 137                         }\r
 138                         //Factorオブジェクトにセット\r
 139                         this._dist.setValue(tmp);\r
 140                 } catch (Exception e) {\r
 141                         throw new NyARException(e);\r
 142                 }\r
 143                 return;\r
 144         }\r
 145 \r
 146         public void saveARParam(OutputStream i_stream)throws Exception\r
 147         {\r
 148                 NyARException.trap("未チェックの関数");\r
 149                 byte[] buf = new byte[SIZE_OF_PARAM_SET];\r
 150                 // バッファをラップ\r
 151                 ByteBuffer bb = ByteBuffer.wrap(buf);\r
 152                 bb.order(ByteOrder.BIG_ENDIAN);\r
 153 \r
 154                 // 書き込み\r
 155                 bb.putInt(this._screen_size.w);\r
 156                 bb.putInt(this._screen_size.h);\r
 157                 double[] tmp=new double[12];\r
 158                 //Projectionを読み出し\r
 159                 this._projection_matrix.getValue(tmp);\r
 160                 //double値を12個書き込む\r
 161                 for(int i=0;i<12;i++){\r
 162                         tmp[i]=bb.getDouble();\r
 163                 }\r
 164                 //Factorを読み出し\r
 165                 this._dist.getValue(tmp);\r
 166                 //double値を4個書き込む\r
 167                 for (int i = 0; i < 4; i++) {\r
 168                         tmp[i]=bb.getDouble();\r
 169                 }\r
 170                 i_stream.write(buf);\r
 171                 return;\r
 172         }\r
 173 }\r