LeapDeveloperKitをダウンロードして、どこか適当なフォルダに置き、 LeapDeveloperKitoのディレクトリ/LeapSDK/lib/x64 にパスを通して(x86環境の場合はx64をx86に置きかえる)、LeapJava.jarをクラスパスに追加する。そしてhttp://www.buildinsider.net/small/leapmotioncs/06をJava用に修正してレッツ実行!とりあえず認識はしてるみたいなので満足
import com.leapmotion.leap.Frame; import com.leapmotion.leap.Finger; import com.leapmotion.leap.Vector; import com.leapmotion.leap.Controller; public class LeapTest{ public static void main(String[] args){ Controller leap = new Controller(); long previousFrameId = -1; while(true){ Frame frame = leap.frame(); if (previousFrameId == frame.id()){ continue; } previousFrameId = frame.id(); int count = 0; Vector average = new Vector(); Finger fingerToAverage = frame.fingers().get(0); for (int i = 0; i < 10; i++){ Finger fingerFromFrame = leap.frame(i).finger(fingerToAverage.id()); if(fingerFromFrame.isValid()) { average = average.plus(fingerFromFrame.tipPosition()); count++; } } if(count > 0){ average = average.divide(count); } System.out.println(average); } } }