tags/2.3.1/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          * @param i_factor\r
  68          * NyARCameraDistortionFactorにセットする配列を指定する。要素数は4であること。\r
  69          * @param i_projection\r
  70          * NyARPerspectiveProjectionMatrixセットする配列を指定する。要素数は12であること。\r
  71          */\r
  72         public void setValue(double[] i_factor,double[] i_projection)\r
  73         {\r
  74                 this._dist.setValue(i_factor);\r
  75                 this._projection_matrix.setValue(i_projection);\r
  76                 return;\r
  77         }\r
  78 \r
  79         /**\r
  80          * ARToolKit標準ファイルから1個目の設定をロードする。\r
  81          * \r
  82          * @param i_filename\r
  83          * @throws NyARException\r
  84          */\r
  85         public void loadARParamFromFile(String i_filename) throws NyARException\r
  86         {\r
  87                 try {\r
  88                         loadARParam(new FileInputStream(i_filename));\r
  89                 } catch (Exception e) {\r
  90                         throw new NyARException(e);\r
  91                 }\r
  92         }\r
  93 \r
  94         /**\r
  95          * int arParamChangeSize( ARParam *source, int xsize, int ysize, ARParam *newparam );\r
  96          * 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
  97          * @param i_xsize\r
  98          * @param i_ysize\r
  99          * @param newparam\r
 100          * @return\r
 101          * \r
 102          */\r
 103         public void changeScreenSize(int i_xsize, int i_ysize)\r
 104         {\r
 105                 final double scale = (double) i_xsize / (double) (this._screen_size.w);// scale = (double)xsize / (double)(source->xsize);\r
 106                 //スケールを変更\r
 107                 this._dist.changeScale(scale);\r
 108                 this._projection_matrix.changeScale(scale);\r
 109                 this._screen_size.w = i_xsize;// newparam->xsize = xsize;\r
 110                 this._screen_size.h = i_ysize;// newparam->ysize = ysize;\r
 111                 return;\r
 112         }\r
 113 \r
 114 \r
 115         /**\r
 116          * int arParamLoad( const char *filename, int num, ARParam *param, ...);\r
 117          * 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
 118          * \r
 119          * @param i_stream\r
 120          * @throws Exception\r
 121          */\r
 122         public void loadARParam(InputStream i_stream)throws NyARException\r
 123         {\r
 124                 try {\r
 125                         byte[] buf = new byte[SIZE_OF_PARAM_SET];\r
 126                         i_stream.read(buf);\r
 127                         double[] tmp=new double[12];\r
 128 \r
 129                         // バッファを加工\r
 130                         ByteBuffer bb = ByteBuffer.wrap(buf);\r
 131                         bb.order(ByteOrder.BIG_ENDIAN);\r
 132                         this._screen_size.w = bb.getInt();\r
 133                         this._screen_size.h = bb.getInt();\r
 134                         //double値を12個読み込む\r
 135                         for(int i=0;i<12;i++){\r
 136                                 tmp[i]=bb.getDouble();\r
 137                         }\r
 138                         //Projectionオブジェクトにセット\r
 139                         this._projection_matrix.setValue(tmp);\r
 140                         //double値を4個読み込む\r
 141                         for (int i = 0; i < 4; i++) {\r
 142                                 tmp[i]=bb.getDouble();\r
 143                         }\r
 144                         //Factorオブジェクトにセット\r
 145                         this._dist.setValue(tmp);\r
 146                 } catch (Exception e) {\r
 147                         throw new NyARException(e);\r
 148                 }\r
 149                 return;\r
 150         }\r
 151 \r
 152         public void saveARParam(OutputStream i_stream)throws Exception\r
 153         {\r
 154                 NyARException.trap("未チェックの関数");\r
 155                 byte[] buf = new byte[SIZE_OF_PARAM_SET];\r
 156                 // バッファをラップ\r
 157                 ByteBuffer bb = ByteBuffer.wrap(buf);\r
 158                 bb.order(ByteOrder.BIG_ENDIAN);\r
 159 \r
 160                 // 書き込み\r
 161                 bb.putInt(this._screen_size.w);\r
 162                 bb.putInt(this._screen_size.h);\r
 163                 double[] tmp=new double[12];\r
 164                 //Projectionを読み出し\r
 165                 this._projection_matrix.getValue(tmp);\r
 166                 //double値を12個書き込む\r
 167                 for(int i=0;i<12;i++){\r
 168                         tmp[i]=bb.getDouble();\r
 169                 }\r
 170                 //Factorを読み出し\r
 171                 this._dist.getValue(tmp);\r
 172                 //double値を4個書き込む\r
 173                 for (int i = 0; i < 4; i++) {\r
 174                         tmp[i]=bb.getDouble();\r
 175                 }\r
 176                 i_stream.write(buf);\r
 177                 return;\r
 178         }\r
 179 }\r