import org.locationtech.jts.geom.*;
import org.locationtech.jts.io.*;
import org.locationtech.jts.geom.Coordinate;
import org.locationtech.jts.geom.GeometryFactory;
import org.locationtech.jts.geom.Polygon;
import org.locationtech.jts.awt.ShapeWriter;
import org.locationtech.jts.awt.GeometryCollectionShape;
import org.locationtech.jts.awt.ShapeReader;
import com.vividsolutions.jts.util.GeometricShapeFactory;
import java.awt.*;
import javax.swing.*;
private static Geometry createPolygon() {
GeometryFactory geometryFactory = new GeometryFactory();
Coordinate[] coordinates = new Coordinate[] {
new Coordinate(0, 0),
new Coordinate(0, 10),
new Coordinate(10, 10),
new Coordinate(10, 0),
new Coordinate(0, 0)
};
LinearRing linearRing = geometryFactory.createLinearRing(coordinates);
return geometryFactory.createPolygon(linearRing, null);
}
public static void main(String[] args) {
GeometryFactory geometryFactory = new GeometryFactory();
Geometry polygon = createPolygon();
GeometryCollectionShape geometryCollectionShape = new GeometryCollectionShape(polygon, null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400, 400);
JPanel panel = new JPanel() {
protected void paintComponent(Graphics graphics) {
super.paintComponent(graphics);
Graphics2D g2d = (Graphics2D) graphics;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setStroke(new BasicStroke(2));
g2d.setColor(Color.BLUE);
ShapeWriter.write(g2d, geometryCollectionShape);
}
};
frame.add(panel);
frame.setVisible(true);
}
