#66: Experimenting.

Author: jenetics

jpx/src/main/java/io/jenetics/jpx/Filter.java

@@ -20,6 +20,7 @@
 package io.jenetics.jpx;
 
 import java.util.List;
+import java.util.function.BinaryOperator;
 import java.util.function.Function;
 import java.util.function.Predicate;
 
@@ -85,4 +86,9 @@ public interface Filter<T, R> {
 	 */
 	public R build();
 
+
+	public static <T> Function<List<T>, List<T>> listMaps(final BinaryOperator<T> op) {
+		return null;
+	}
+
 }

jpx/src/test/java/io/jenetics/jpx/GPXTest.java

@@ -45,12 +45,16 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.stream.XMLStreamException;
 
 import org.testng.Assert;
 import org.testng.annotations.DataProvider;
 import org.testng.annotations.Test;
 import org.w3c.dom.Document;
+import org.w3c.dom.Element;
 
 import io.jenetics.jpx.GPX.Reader.Mode;
 import io.jenetics.jpx.GPX.Version;
@@ -61,6 +65,37 @@
  */
 public class GPXTest extends XMLStreamTestBase<GPX> {
 
+@Test
+public void extensions() throws ParserConfigurationException {
+	final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+	final DocumentBuilder db = dbf.newDocumentBuilder();
+	final Document doc = db.newDocument();
+
+	GPX gpx = GPX.builder()
+		.extensions(doc)
+		.build();
+}
+
+	@Test
+	public void foo1() throws ParserConfigurationException, IOException {
+		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+		DocumentBuilder db = dbf.newDocumentBuilder();
+		Document doc = db.newDocument();
+		Element ext = doc.createElement("extesions");
+		Element elem = doc.createElement( "property");
+		elem.setAttribute("name", "my_attribute");
+		elem.setTextContent("Some Attribute Value");
+
+		ext.appendChild(elem);
+		doc.appendChild(ext);
+
+		GPX gpx = GPX.builder()
+			.extensions(doc)
+			.build();
+
+		GPX.writer("    ").write(gpx, System.out);
+	}
+
 	@Override
 	public Supplier<GPX> factory(Random random) {
 		return () -> nextGPX(random);

jpx/src/test/java/io/jenetics/jpx/geom/GeoidTest.java

@@ -19,7 +19,10 @@
  */
 package io.jenetics.jpx.geom;
 
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.List;
+import java.util.Optional;
 import java.util.Random;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -28,7 +31,13 @@
 import org.testng.annotations.DataProvider;
 import org.testng.annotations.Test;
 
+import io.jenetics.jpx.GPX;
+import io.jenetics.jpx.GPX.Reader.Mode;
 import io.jenetics.jpx.Point;
+import io.jenetics.jpx.Speed;
+import io.jenetics.jpx.Speed.Unit;
+import io.jenetics.jpx.Track;
+import io.jenetics.jpx.TrackSegment;
 import io.jenetics.jpx.WayPoint;
 import io.jenetics.jpx.WayPointTest;
 
@@ -134,4 +143,36 @@ public void parallelPointStream() {
 			.collect(GEOID.toPathLength());
 	}
 
+	@Test
+	public void speed() throws IOException  {
+		final String resource = "/io/jenetics/jpx/geom/Track_1.gpx";
+
+		final GPX gpx;
+		try (InputStream in = getClass().getResourceAsStream(resource)) {
+			gpx = GPX.reader(Mode.LENIENT).read(in);
+		}
+
+		GPX.writer("    ").write(gpx, System.out);
+
+		final List<WayPoint> points = gpx.tracks()
+			.flatMap(Track::segments)
+			.flatMap(TrackSegment::points)
+			.collect(Collectors.toList());
+
+		/*
+		Point p0 = points.get(0);
+		for (int i = 1; i < points.size(); ++i) {
+			final Point p1 = points.get(i);
+			final Optional<Speed> speed = Geoid.DEFAULT.speed(p0, p1);
+			speed
+				.map(s -> s.to(Unit.KILOMETERS_PER_HOUR))
+				.ifPresent(System.out::println);
+
+			p0 = p1;
+		}
+
+		 */
+
+	}
+
 }