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examples / src / main / java / org / distorted / examples / dynamic / DynamicSurfaceView.java @ b041d424

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.examples.dynamic;
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import android.content.Context;
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import android.opengl.GLSurfaceView;
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import android.os.Build;
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import android.view.MotionEvent;
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import android.util.AttributeSet;
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import android.graphics.Canvas;
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import android.graphics.Paint.Style;
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import android.graphics.Paint;
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import org.distorted.library.type.Dynamic1D;
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import org.distorted.library.type.Dynamic2D;
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import org.distorted.library.type.Dynamic3D;
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import org.distorted.library.type.Static1D;
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import org.distorted.library.type.Static2D;
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import org.distorted.library.type.Static3D;
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///////////////////////////////////////////////////////////////////
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public class DynamicSurfaceView extends GLSurfaceView
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    {
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    public static final int DIM_1D   = 0; 
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    public static final int DIM_2D   = 1; 
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    public static final int DIM_3DXY = 2; 
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    public static final int DIM_3DXZ = 3; 
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    private static final int NUM_POINTS = 250;
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    private static final int MAX_POINTS =   6;
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    private static final Object lock = new Object();
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    private Dynamic1D di1D;
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    private Dynamic2D di2D;
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    private Dynamic3D di3D;
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    private Paint mPaint;
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    private int moving;
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    private int mDuration;
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    private int mPosition;
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    private long mDiffTime, mLastTime;
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    private float mNoise0, mNoise1, mNoise2;
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    private int mSize1, mSize2, mSizeT, mAvg;
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    private int currentDim= DIM_2D;
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    private Static1D p1D;
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    private Static2D p2D;
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    private Static3D p3D;
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    private Static1D p1N;
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    private Static2D p2N;
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    private Static3D p3N;
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    private float[] mPoints = new float[3*NUM_POINTS];
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///////////////////////////////////////////////////////////////////
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    public DynamicSurfaceView(Context c, AttributeSet attrs)
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      {
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      super(c, attrs);
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      mPaint = new Paint();
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      mPaint.setStyle(Style.FILL);
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      mPaint.setAntiAlias(true);
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      moving    = -1;
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      mDuration = 10000;
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      mPosition = 0;
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      mNoise0   = 0.0f;
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      mNoise1   = 0.0f;
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      mNoise2   = 0.0f;
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      mDiffTime = -1;
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      mLastTime = -1;
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      di1D = new Dynamic1D(mDuration,0.0f);
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      p1N  = new Static1D(mNoise0);
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      di2D = new Dynamic2D(mDuration,0.0f);
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      p2N  = new Static2D(mNoise0,mNoise1);
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      di3D = new Dynamic3D(mDuration,0.0f);
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      p3N  = new Static3D(mNoise0,mNoise1,mNoise2);
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      if(!isInEditMode())
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        {
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        setFocusable(true);
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        setFocusableInTouchMode(true);
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        setEGLContextClientVersion(2);
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        if( Build.FINGERPRINT.startsWith("generic") ) // when running on the emulator, insert a magic line that is
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          {                                           // supposed to cure the 'no config chosen' crash on emulator startup
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          setEGLConfigChooser(8, 8, 8, 8, 16, 0);   
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          }
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        DynamicRenderer mRenderer = new DynamicRenderer(this);
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        setRenderer(mRenderer);
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        }
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      }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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    public void onSurfaceChanged(int width,int height)
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      {
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      mAvg = (width+height)/2;
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      mSize1 = mAvg/150;
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      mSize2 = mAvg/60;
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      mSizeT = mAvg/30;
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      mPaint.setTextSize(mSizeT);
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      clearPoints();
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      }
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///////////////////////////////////////////////////////////////////
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    public void setMode(int mode)
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      {
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      di1D.setMode(mode);  
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      di2D.setMode(mode);
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      di3D.setMode(mode);
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      }
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///////////////////////////////////////////////////////////////////
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    public void setDuration(int duration)
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      {
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      mDuration = duration;
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      di1D.setDuration(duration);
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      di2D.setDuration(duration);
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      di3D.setDuration(duration);
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      }
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///////////////////////////////////////////////////////////////////
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    public void setNoise(float noise0, float noise1, float noise2)
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      {
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      mNoise0 = noise0;
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      mNoise1 = noise1;
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      mNoise2 = noise2;
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      p1N.set(mNoise0);
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      p2N.set(mNoise0,mNoise1);
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      p3N.set(mNoise0,mNoise1,mNoise2);
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      di1D.setNoise(p1N);
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      di2D.setNoise(p2N);
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      di3D.setNoise(p3N);
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      }
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///////////////////////////////////////////////////////////////////
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    public void setDimension(int dim)
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      {
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      if( currentDim != dim )
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        {
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        if( !(currentDim==DIM_3DXY && dim==DIM_3DXZ) && !(currentDim==DIM_3DXZ && dim==DIM_3DXY) )
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          {
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          synchronized(lock)
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            {
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            di1D.removeAll();
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            di2D.removeAll();
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            di3D.removeAll();
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            clearPoints();
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            }
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          }
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        currentDim = dim;
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        }
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      }
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///////////////////////////////////////////////////////////////////
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    public void drawCurve(Canvas c, long time)
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      {
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      if ( ++mPosition >= NUM_POINTS ) mPosition=0;
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      if( mLastTime<0 )
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        {
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        mLastTime = time;
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        }
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      else
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        {
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        mDiffTime = time - mLastTime;
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        }
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      synchronized(lock)
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        {
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        switch(currentDim)
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          {
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          case DIM_1D: drawCurve1D(c,time); break;
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          case DIM_2D: drawCurve2D(c,time); break;
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          default    : drawCurve3D(c,time); break;
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          }
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        }
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      mLastTime = time;
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      }
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///////////////////////////////////////////////////////////////////
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    private void clearPoints()
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      {
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      for(int i=0; i<3*NUM_POINTS; i++)
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         {
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         mPoints[i] = -10.0f;
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         }
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      }
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///////////////////////////////////////////////////////////////////
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    private void drawCurve1D(Canvas c, long time)
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      {
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      int len = di1D.getNumPoints();   
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      mPaint.setColor(0xff000000);
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      c.drawLine(0, DynamicRenderer.texH/2, DynamicRenderer.texW, DynamicRenderer.texH/2, mPaint);
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      c.drawText("x", 0.95f*DynamicRenderer.texW, DynamicRenderer.texH /2 + mSizeT , mPaint);
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      if( len>=2 )
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        {
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        di1D.interpolateMain(mPoints,3*mPosition, time, mDiffTime);
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        for(int i=0; i<NUM_POINTS; i++)
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          {
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          int color = i<=mPosition ? 0xff - (mPosition           -i)*0xff/(NUM_POINTS-1)
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                                   : 0xff - (mPosition+NUM_POINTS-i)*0xff/(NUM_POINTS-1);
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          mPaint.setColor( 0xffffff + ((color&0xff)<<24) ); 
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          c.drawCircle(mPoints[3*i], DynamicRenderer.texH/2 , mSize1, mPaint );
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          }
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        }
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      mPaint.setColor(0xffff0000);
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      for(int curr=0; curr<len; curr++)
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        {      
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        p1D = di1D.getPoint(curr);
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        c.drawCircle(p1D.getX(), DynamicRenderer.texH/2 , mSize2, mPaint);
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        }   
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      }
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///////////////////////////////////////////////////////////////////
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    private void drawCurve2D(Canvas c, long time)
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      {
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      int len = di2D.getNumPoints();   
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      mPaint.setColor(0xff000000);
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      c.drawLine(0, DynamicRenderer.texH/2, DynamicRenderer.texW, DynamicRenderer.texH/2, mPaint);
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      c.drawLine(DynamicRenderer.texW/2, 0, DynamicRenderer.texW/2, DynamicRenderer.texH, mPaint);
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      c.drawText("x", 0.95f* DynamicRenderer.texW    , DynamicRenderer.texH/2+mSizeT , mPaint);
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      c.drawText("y", DynamicRenderer.texW/2 + mSizeT,                        mSizeT , mPaint);
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      if( len>=2 )
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        {
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        di2D.interpolateMain(mPoints,3*mPosition, time, mDiffTime);
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        for(int i=0; i<NUM_POINTS; i++)
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          {
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          int color = i<=mPosition ? 0xff - (mPosition           -i)*0xff/(NUM_POINTS-1)
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                                   : 0xff - (mPosition+NUM_POINTS-i)*0xff/(NUM_POINTS-1);
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          mPaint.setColor( 0xffffff + ((color&0xff)<<24) );
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          c.drawCircle(mPoints[3*i], mPoints[3*i+1], mSize1, mPaint );
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          }
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        }
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292
      mPaint.setColor(0xffff0000);
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      for(int curr=0; curr<len; curr++)
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        {      
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        p2D = di2D.getPoint(curr);
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        c.drawCircle(p2D.getX(),p2D.getY(), mSize2, mPaint);
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        }
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      }
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///////////////////////////////////////////////////////////////////
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    private void drawCurve3D(Canvas c, long time)
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      {
305
      int len = di3D.getNumPoints();   
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      mPaint.setColor(0xff000000);
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      c.drawLine(0, DynamicRenderer.texH/2, DynamicRenderer.texW  , DynamicRenderer.texH/2, mPaint);
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      c.drawLine(DynamicRenderer.texW/2, 0, DynamicRenderer.texW/2, DynamicRenderer.texH  , mPaint);
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      c.drawText( "x"                             , 0.95f* DynamicRenderer.texW    , DynamicRenderer.texH/2 + mSizeT , mPaint);
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      c.drawText( currentDim==DIM_3DXY ? "y" : "z", DynamicRenderer.texW/2 + mSizeT,                          mSizeT , mPaint);
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314
      if( len>=2 )
315
        {
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        di3D.interpolateMain(mPoints, 3*mPosition, time, mDiffTime);
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        for(int i=0; i<NUM_POINTS; i++)
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          {
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          int color = i<=mPosition ? 0xff - (mPosition           -i)*0xff/(NUM_POINTS-1)
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                                   : 0xff - (mPosition+NUM_POINTS-i)*0xff/(NUM_POINTS-1);
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          mPaint.setColor( 0xffffff + ((color&0xff)<<24) ); 
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          c.drawCircle(mPoints[3*i], mPoints[3*i + (currentDim==DIM_3DXY ? 1:2) ], mSize1, mPaint );
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          }
326
        }
327
     
328
      mPaint.setColor(0xffff0000);
329
      
330
      for(int curr=0; curr<len; curr++)
331
        {      
332
        p3D = di3D.getPoint(curr);
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        c.drawCircle(p3D.getX(), currentDim==DIM_3DXY ? p3D.getY():p3D.getZ(), mSize2, mPaint);
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        }   
335
      }
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337
///////////////////////////////////////////////////////////////////
338
339
    private void addNewPoint(int x, int y)
340
      {
341
      float gx,gy,gz;
342
      int len;
343
      
344
      switch(currentDim)
345
        {
346
        case DIM_1D: len = di1D.getNumPoints();
347
                
348
                     for(int g=0; g<len; g++)
349
                       {
350
                       p1D = di1D.getPoint(g);  
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                       gx = p1D.getX();
352
                                    
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                       if( (x-gx)*(x-gx) < (mAvg*mAvg/100) )
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                         {
355
                         moving = g;
356
                         break;
357
                         }
358
                       }
359
                     if( moving<0 )
360
                       {
361
                       synchronized(lock)
362
                         {
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                         if( len>=MAX_POINTS )
364
                           {
365
                           di1D.removeAll();
366
                           clearPoints();
367
                           }
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                         di1D.add(new Static1D(x));
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                         }
370
                       }
371
                     break;
372
        case DIM_2D: len = di2D.getNumPoints();
373
                                 
374
                     for(int g=0; g<len; g++)
375
                       {
376
                       p2D = di2D.getPoint(g);  
377
                       gx = p2D.getX();
378
                       gy = p2D.getY();
379
                                    
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                       if( (x-gx)*(x-gx) + (y-gy)*(y-gy) < (mAvg*mAvg/100) )
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                         {
382
                         moving = g;
383
                         break;
384
                         }
385
                       }
386
                     if( moving<0 )
387
                       {
388
                       synchronized(lock)
389
                         {
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                         if( len>=MAX_POINTS )
391
                           {
392
                           di2D.removeAll();
393
                           clearPoints();
394
                           }
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                         di2D.add(new Static2D(x,y));
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                         }
397
                       }
398
                     break;
399
        default    : len = di3D.getNumPoints();
400
                                 
401
                     for(int g=0; g<len; g++)
402
                       {
403
                       p3D = di3D.getPoint(g);  
404
                       gx = p3D.getX();
405
                       gy = p3D.getY();
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                       gz = p3D.getZ();
407
                               
408
                     if( currentDim==DIM_3DXY )
409
                       {
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                       if( (x-gx)*(x-gx) + (y-gy)*(y-gy) < (mAvg*mAvg/100) )
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                         {
412
                         moving = g;
413
                         break;
414
                         }
415
                       }
416
                     if( currentDim==DIM_3DXZ )
417
                       {
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                       if( (x-gx)*(x-gx) + (y-gz)*(y-gz) < (mAvg*mAvg/100) )
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                         {
420
                         moving = g;
421
                         break;
422
                         }
423
                       }
424
                     }
425
                   if( moving<0 )
426
                     { 
427
                     synchronized(lock)
428
                       {
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                       if( len>=MAX_POINTS )
430
                         {
431
                         di3D.removeAll();
432
                         clearPoints();
433
                         }
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435
                       if( currentDim==DIM_3DXY )
436
                         {
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                         di3D.add(new Static3D(x,y, DynamicRenderer.texH/2));
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                         }
439
                       if( currentDim==DIM_3DXZ )
440
                         {
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                         di3D.add(new Static3D(x, DynamicRenderer.texH/2,y));
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                         }
443
                       }
444
                     }
445
                   break; 
446
        }
447
      }
448
    
449
///////////////////////////////////////////////////////////////////
450
    
451
    @Override public boolean onTouchEvent(MotionEvent event) 
452
      {
453
      int action = event.getAction();
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      int xDown, yDown;
455
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      switch(action)
457
        {
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        case MotionEvent.ACTION_DOWN: xDown = (int)event.getX();
459
                                      yDown = (int)event.getY();
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461
                                      addNewPoint(xDown,yDown);
462
                                    
463
                                      break;
464
        case MotionEvent.ACTION_MOVE: if( moving>=0 )
465
                                        {
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                                        xDown = (int)event.getX();
467
                                        yDown = (int)event.getY();
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469
                                        switch(currentDim)
470
                                          {
471
                                          case DIM_1D  : di1D.setPoint(moving, xDown); 
472
                                                         break;
473
                                          case DIM_2D  : di2D.setPoint(moving, xDown, yDown);
474
                                                         break;
475
                                          case DIM_3DXY: di3D.setPoint(moving, xDown, yDown, (int)di3D.getPoint(moving).getZ());
476
                                                         break;
477
                                          case DIM_3DXZ: di3D.setPoint(moving, xDown, (int)di3D.getPoint(moving).getY(), yDown);
478
                                                         break;
479
                                          }
480
                                        }                           
481
                                      break;
482
        case MotionEvent.ACTION_UP  : moving = -1;
483
                                      break;
484
        }
485
            
486
      return true;
487
      }
488
 
489
///////////////////////////////////////////////////////////////////
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  }