Application: gvSIG desktop

/*

 * Created on 04-may-2004

 */

package org.cresques.px;

import java.awt.Color;

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import org.cresques.io.GeoFile;

/**

 * Paleta de color (en principio para MDT

 * 

 * @author "Luis W. Sevilla" <sevilla_lui@gva.es>

 */

public class Paleta {

        public String fName = null;

        String name = null;

        public Color [] color = null;

        boolean enPaleta = false;

        /**

         * Lee una paleta desde un .lut de ArcView

         * 

         * @param fName

         */

        public void loadLut(String fName) throws IOException {

                BufferedReader fi;

                String buf;

                int l = 0;

                if (fName == null)

                        fName = "C:/ESRI/AV_GIS30/ARCVIEW/averm/LUT/elevation.lut";

                this.fName = fName;

                fi = new BufferedReader(new FileReader(fName));

                while ((buf = fi.readLine()) != null) {

                        //System.out.println(buf);

                        l++;

                        parseLine(buf);

                }

                fi.close();

                //setColorFromLut("          0     0 19200 65280");

        }

        private void parseLine(String buf) {

                //LookUpTable Begin

                //        Version         = "1.0"

                //        Name            = "elevation"

                //        Description     = "one of several std color schemes for color coding elevation data"

                //        NrEntries       = 256

                //        LUT             = {

                //          0     0 19200 65280

                // ...

                //        }

                //LookUpTable End

                buf = GeoFile.filterWS(buf);

                String [] datos = buf.split(" ");

                System.out.println(buf);

                if (enPaleta) {

                        if (buf.length()>4) {

                                int nr = Integer.parseInt(datos[0].trim());

                                int r = Integer.parseInt(datos[1].trim());

                                int g = Integer.parseInt(datos[2].trim());

                                int b = Integer.parseInt(datos[3].trim());

                                setColorFromLut(nr, r, g, b);

                        } else

                                enPaleta = false;

                } else if (buf.length() > 4) {

                        if (buf.substring(0,3).compareTo("LUT") == 0) {

                                enPaleta = true;

                        } else if (buf.substring(0,3).compareTo("NrE") == 0) {

                                int numC = Integer.parseInt(datos[2].trim());

                                color = new Color[numC];

                                System.out.println("hay "+ numC + " colores.");         

                        }

                }

        }

        private void setColorFromLut(int nr, int r, int g, int b) {

                //"          0     0 19200 65280"

                color[nr] = new Color(r/256, g/256, b/256);

                //System.out.println(nr+":["+l.substring(5,10)+","+l.substring(11,16)+","+l.substring(17)+"]");         

                System.out.println(nr+":"+color[nr]);         

        }

}