ValueGridCellInfo.java

/*
  Copyright 2006 by Sean Luke and George Mason University
  Licensed under the Academic Free License version 3.0
  See the file "LICENSE" for more information
*/

package sim.portrayal3d.grid.quad;
import sim.field.grid.*;
import sim.portrayal3d.grid.*;
import sim.util.*;

/**
 * Used by ValueGrid2DPortrayal3D to send needed value information to
 * underlying QuadPortrayals.  Specifically, ValueGridCellInfo contains
 * the x,y,z dimensions of the current value point, plus a value() method
 * which returns the current value at that point.
 *
 * @author Catalin Gabriel Balan
 */
public class ValueGridCellInfo {
    /* This could be Grid2D or Grid3D */
    Object grid;
    ValueGrid2DPortrayal3D fieldPortrayal;
    public int x = 0;
    public int y = 0;
    
    public ValueGridCellInfo(ValueGrid2DPortrayal3D fieldPortrayal, Grid2D g)
        {
        grid = g;
        this.fieldPortrayal = fieldPortrayal;
        } 
        
    public double value()
        {
        if (grid instanceof DoubleGrid2D)
            { return ((DoubleGrid2D)grid).field[x][y]; }
        else if (grid instanceof IntGrid2D)
            { return ((IntGrid2D)grid).field[x][y]; }
        else if (grid instanceof ObjectGrid2D)
            { return fieldPortrayal.doubleValue(((ObjectGrid2D)grid).field[x][y]); }
        else return 0;  // an error
        }
    }