colormapproperty.java

JAVA 数学程序库 提供常规的数值计算程序包

package jmathlib.core.graphics.properties;


import java.text.DecimalFormat;
import jmathlib.core.graphics.*;
import jmathlib.core.interpreter.*;

public class ColormapProperty extends Property
{
	private double[] red;    // vector for red-color
    private double[] green;  // vector for green-color
    private double[] blue;   // vector for blue-color

    private double[][] c =   // basic color map
        { {0.0000, 0.0000, 0.5625},
          {0.0000, 0.0000, 0.6250},
          {0.0000, 0.0000, 0.6875},
          {0.0000, 0.0000, 0.6875},
          {0.0000, 0.0000, 0.7500},
          {0.0000, 0.0000, 0.8125},
          {0.0000, 0.0000, 0.8750},
          {0.0000, 0.0000, 0.9375},
          {0.0000, 0.0000, 1.0000},
          {0.0000, 0.0625, 1.0000},
          {0.0000, 0.1250, 1.0000},
          {0.0000, 0.1875, 1.0000},
          {0.0000, 0.2500, 1.0000},
          {0.0000, 0.3125, 1.0000},
          {0.0000, 0.3750, 1.0000},
          {0.0000, 0.4375, 1.0000},
          {0.0000, 0.5000, 1.0000},
          {0.0000, 0.5625, 1.0000},
          {0.0000, 0.6250, 1.0000},
          {0.0000, 0.6875, 1.0000},
          {0.0000, 0.7500, 1.0000},
          {0.0000, 0.8125, 1.0000},
          {0.0000, 0.8750, 1.0000},
          {0.0000, 0.9375, 1.0000},
          {0.0000, 1.0000, 1.0000},
          {0.0625, 1.0000, 0.9375},
          {0.1250, 1.0000, 0.8750},
          {0.1875, 1.0000, 0.8125},
          {0.2500, 1.0000, 0.7500},
          {0.3125, 1.0000, 0.6875},
          {0.3750, 1.0000, 0.6250},
          {0.4375, 1.0000, 0.5625},
          {0.5000, 1.0000, 0.5000},
          {0.5625, 1.0000, 0.4375},
          {0.6250, 1.0000, 0.3750},
          {0.6875, 1.0000, 0.3125},
          {0.7500, 1.0000, 0.2500},
          {0.8125, 1.0000, 0.1875},
          {0.8750, 1.0000, 0.1250},
          {0.9375, 1.0000, 0.0625},
          {1.0000, 1.0000, 0.0000},
          {1.0000, 0.9375, 0.0000},
          {1.0000, 0.8750, 0.0000},
          {1.0000, 0.8125, 0.0000},
          {1.0000, 0.7500, 0.0000},
          {1.0000, 0.6875, 0.0000},
          {1.0000, 0.6250, 0.0000},
          {1.0000, 0.5625, 0.0000},
          {1.0000, 0.5000, 0.0000},
          {1.0000, 0.4375, 0.0000},
          {1.0000, 0.3750, 0.0000},
          {1.0000, 0.3125, 0.0000},
          {1.0000, 0.2500, 0.0000},
          {1.0000, 0.1875, 0.0000},
          {1.0000, 0.1250, 0.0000},
          {1.0000, 0.0625, 0.0000},
          {1.0000, 0.0000, 0.0000},
          {0.9375, 0.0000, 0.0000},
          {0.8750, 0.0000, 0.0000},
          {0.8125, 0.0000, 0.0000},
          {0.7500, 0.0000, 0.0000},
          {0.6875, 0.0000, 0.0000},
          {0.6250, 0.0000, 0.0000},
          {0.5625, 0.0000, 0.0000},
          {0.5000, 0.0000, 0.0000}};

    // set up a basic color map
    public ColormapProperty(PropertySet parent, String name)
    {
          super(parent, name);
          try{
              set(c);
          }
          catch (Exception e){
              ErrorLogger.debugLine("ColormapProperty: init error");
          }
   }

    public ColormapProperty(PropertySet parent, String name, 
	                     double[] red, double[] green, double[] blue)
	{
		super(parent, name);
		this.red   = red;
        this.green = green;
        this.blue  = blue;
	}

	public Object get()
	{
		return getArray();
	}

	public void set(Object value) throws PropertyException
	{
	    
	    try
        {
	        
	        double[][] array = (double[][])value;
	    
    	    int n = array.length;
            red   = new double[n];
            green = new double[n];
            blue  = new double[n];
    	    
            for (int i=0; i<n; i++)
            {
                red[i]   = array[i][0];
                green[i] = array[i][1];
                blue[i]  = array[i][2];
                
                if (red[i]  <0 || red[i]  >1 ||
                    green[i]<0 || green[i]>1 ||
                    blue[i] <0 || blue[i] >1   )
                throw new PropertyException("ColormapProperty: invalid array value - ");
            }

        }
        catch (ClassCastException e)
		{
			throw new PropertyException("ColormapProperty: invalid array value - " + value.toString());
		}
        ErrorLogger.debugLine("ColormapProperty: finished");
	}

	public double[][] getArray()
	{
	    double[][] array = new double[red.length][3];
	    
	    for (int i=0; i<red.length; i++)
	    {
	        array[i][0] = red[i];
            array[i][1] = green[i];
            array[i][2] = blue[i];
	    }
		return array;
	}

	public void setArray(double[] a)
	{
		try { set(a); }
		catch (PropertyException e) { }
	}

	//private void setArrayInternal(double[] v)
	//{
	//	array = v;
	//	valueChanged();
	//}

	public String toString()
	{
		
		String s = "[ ";
		DecimalFormat fmt = new DecimalFormat("0.0 ");

		if (red==null)
		    return "";
		
		for (int i=0; i<red.length; i++)
        {
            s += fmt.format(red[i])  + " ";
            s += fmt.format(green[i])+ " ";
            s += fmt.format(blue[i]);
            
            if (i<red.length-1)
                s += "\n";
        }
        s += "]";
        return s;
	}
}