studyrangedlabel.java~2~

CreateMyFirstMap

package secondstudy;
import com.mapinfo.mapj.MapJ;
import com.mapinfo.unit.Distance;
import com.mapinfo.util.DoublePoint;
import com.mapinfo.util.DoubleRect;
import com.mapinfo.unit.LinearUnit;
import com.mapinfo.mapj.FeatureLayer;
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.Image;
import java.awt.Graphics;
import com.mapinfo.mapxtreme.client.MapXtremeImageRenderer;
import com.mapinfo.xmlprot.mxtj.ImageRequestComposer;
import java.awt.Color;
import java.awt.BorderLayout;
import com.mapinfo.mapj.LabelProperties;
public class StudyRangedLabel  extends JFrame
{  private String mdfFilePath="e:\\MapInfo\\study\\mapmdf";
  private  String mdfFileName="states.mdf";
  private String mapxtremeURL="http://901-32:8083/mapxtreme47/mapxtreme";
  String TARGET_COLUMN_NAME = "POP_1990";
  int NUMBER_OF_BREAKPOINTS = 10;
  String TARGET_LAYER_NAME = "STATES";

  public StudyRangedLabel()
  {
  }
public void implRangedLabel()
  {
    MapJ mapj=new MapJ();
    DoublePoint centerPoint=new DoublePoint(-108.8,42.5);
    LinearUnit unit=LinearUnit.kilometer ;
    mapj.setDistanceUnits(unit) ;
    mapj.setDeviceBounds(new DoubleRect(0,0,800,600)) ;
    FeatureLayer featureLayer=null;
    DoubleRect bounds=null;
    LabelProperties labelProperties=null;
    try
    {
      mapj.setCenter(centerPoint) ;
      mapj.loadMapDefinition(mdfFilePath + "\\" + mdfFileName);
      featureLayer=(FeatureLayer)mapj.getLayers() .get(0) ;
      DoubleRect rect=featureLayer.getBounds() ;
      double width=rect.xmax -rect.xmin ;
      double height=rect.ymax -rect.ymin ;
      bounds=new DoubleRect(centerPoint,width/4,height/4);
      mapj.setBounds(bounds) ;

      featureLayer.setAutoLabel(true) ;
      MapXtremeImageRenderer render=new MapXtremeImageRenderer(mapxtremeURL);
      ImageRequestComposer imageRC=ImageRequestComposer.create(mapj,256,Color.white ,"image/png");
      render.render(imageRC) ;
      Image image=render.toImage() ;
      DrawImage drawImage=new DrawImage(image);
      drawImage.repaint() ;
      this.getContentPane().add(drawImage,BorderLayout.CENTER );
      this.setSize(800,600) ;
      this.setVisible(true) ;
      this.show() ;
    }catch(Exception e)
    {
      System.out.println("get a "+e.getClass() +"\nwith message "+e.getMessage() ) ;
    }
  }//end this function
  public static void main(String[] args)
  {
    StudyRangedLabel srl=new StudyRangedLabel();
    srl.implRangedLabel() ;
  }
public class DrawImage extends JPanel
  {
    private Image m_img;
    public DrawImage(Image img)
    {
      m_img=img;
    }
    public void paint(Graphics g)
    {
      g.drawImage(m_img,0,0,this) ;
    }
  }
}