県別データ活用 - 経済統計練習帳

import java.io.*;
 
public class pro {
 
      int s,datanumber;
    String[] data=new String[60000];
   String[] city=new String[60000];
    String[] code=new String[60000];
 String[] dic=new String[60000];
    double[][] lat=new double[3020][300];
    double[][] lon=new double[3020][300];
 
    String[] geo=new String[30000];
 int dicnumber;
  int[] number=new int[2000];
 
   int[] point=new int[2000];
 
    public static void main(String[] args) {
        pro t=new pro();
    }
    pro(){
 
        readx("23.txt");
 
        for(s=1;s<datanumber+1;s++){
        String[] x=data[s].split(",");
        code[s]=x[0];    
        }
 
        int sx;
        dicnumber=0;
         for(s=1;s<datanumber+1;s++){
         int h=0;    
        for(sx=1;sx<dicnumber+1;sx++){
        if(code[s].equals(dic[sx]))h=100;    
        }  
        if(h<50)dicnumber=dicnumber+1;
        if(h<50)dic[dicnumber]=code[s];
        }
 
        System.out.println(dicnumber);
 
        for(sx=1;sx<dicnumber+1;sx++){
        city[sx]="";
        }  
 
        for(s=1;s<datanumber+1;s++){
        int sxs=0;    
        String[] x1=data[s].split(",");
        for(sx=1;sx<dicnumber+1;sx++){
        if(code[s].equals(dic[sx]))sxs=sx;    
        }  
       int n=number[sxs];
       lat[sxs][n+1]=num_double(x1[3]);
       lon[sxs][n+1]=num_double(x1[2]);; 
       number[sxs]=n+1;
       if(x1.length>4)city[sxs]=x1[4];
       }
 
 
        for(s=1;s<dicnumber+1;s++){
        if(city[s].indexOf("23211")>-1)point[s]=100;
        }
 
 
 
        graph sub=new graph();
        sub.lonx=lon;
        sub.latx=lat;
        sub.point=point;
        sub.number=number;
        sub.dicnumber=dicnumber;
        sub.makedata("ren.jpg");
 
 
 
 
 
 
    }
 
     double num_double(String str){
 
    double nx;
 
    nx=0;
 
 try{
 
    nx=Double.parseDouble(str);
 
 }catch (Exception e) {}
 
 return nx;
 
      }
 
 
      void readx(String file){
 
String str;
BufferedReader br;  
int s;
s=0;
try {
br = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"));  
while((str = br.readLine()) != null) {  
s=s+1;
data[s]=str;  
}
br.close();
} catch (IOException e) {System.out.println(e);}  
 
datanumber=s;
 
} 
 
}
 
 
package map;
 
import java.awt.Polygon;
import java.awt.*; 
import java.awt.Color;   
import java.awt.image.*;   
import java.awt.image.BufferedImage;   
import java.io.*;   
import javax.imageio.ImageIO;   
import java.awt.Polygon;
import java.util.HashMap;
 
class graph{
 
 
       int number_adm;
    int h=700;
    int w=700;
 
 
 
String maxg;  
 
 
 
 
 double z;
 
 int dicnumber;
 String[] dic=new String[20000];
  double[][] lonx=new double[5000][501];
   double[][] latx=new double[5000][501];
     int[] number=new int[6000];
  int[] point=new int[6000];
 
void makedata(String file){
 
    int w1,h1,mx,nx;
 
 
w1=700;
h1=700;    
BufferedImage off = new BufferedImage(w1, h1, BufferedImage.TYPE_INT_BGR);   
Graphics offsc = off.getGraphics();  
 
offsc.setColor(Color.WHITE);
offsc.fillRect(0,0,700,700);
 
double maxy,maxx,minx,miny;
maxy=0;
maxx=0;
int sx,s;
for(s=1;s<dicnumber+1;s++){
for(sx=1;sx<number[s]+1;sx++){
if(lonx[s][sx]>maxy)maxy=lonx[s][sx];
if(latx[s][sx]>maxx)maxx=latx[s][sx];
}}
 
minx=99999;
miny=99999;
for(s=1;s<dicnumber+1;s++){
for(sx=1;sx<number[s]+1;sx++){
if(lonx[s][sx]<miny)miny=lonx[s][sx];
if(latx[s][sx]<minx)minx=latx[s][sx];
}}
 
int x1,y1;
 
for(s=1;s<dicnumber+1;s++){
int[] px=new int[600];
int[] py=new int[600]; 
for(sx=1;sx<number[s]+1;sx++){
px[sx-1]=(int)(500*(latx[s][sx]-minx)/(maxx-minx));
py[sx-1]=500-(int)((500*(lonx[s][sx]-miny)/(maxy-miny)));
}
offsc.setColor(Color.BLUE); 
if(point[s]>50)offsc.setColor(Color.RED); 
Polygon po = new Polygon(px,py,number[s]);
offsc.fillPolygon(po);
}
 
offsc.dispose(); 
 
try { 
ImageIO.write(off, "jpeg", new File(file)); 
} catch (IOException exception) { exception.printStackTrace(); }     
}   
 
}