Here is my test code:
public App(String latitude, String longitude, String height) {
lat = Double.parseDouble(latitude);
lon = Double.parseDouble(longitude);
this.height = Double.parseDouble(height);
double[] srcPts = {lon, lat, this.height};
double[] dstPts = new double[3];
try {
MathTransform toECEF = new
GeocentricTransform(DefaultEllipsoid.GRS80, true);
toECEF.transform(srcPts, 0, dstPts, 0, 1);
System.out.println("Latitude: " + srcPts[1]);
System.out.println("Longitude: " + srcPts[0]);
System.out.println("Height: " + srcPts[2]);
System.out.println("Xcentric toward prime meridian : " +
dstPts[0]);
System.out.println("Ycentric toward East: " + dstPts[1]);
System.out.println("Zcentric toward North: " + dstPts[2]);
System.out.println();
//inverse transform
MathTransform toGCS = toECEF.inverse();
toGCS.transform(dstPts,0,srcPts,0,1);
System.out.println("Latitude: " + srcPts[1]);
System.out.println("Longitude: " + srcPts[0]);
System.out.println("Height: " + srcPts[2]);
System.out.println("Xcentric toward prime meridian : " +
dstPts[0]);
System.out.println("Ycentric toward East: " + dstPts[1]);
System.out.println("Zcentric toward North: " + dstPts[2]);
} catch (TransformException e) {
e.printStackTrace();
}
}
Test result:
Latitude: 43.301
Longitude: -77.626667
Height: 0.0
Xcentric toward prime meridian : 996208.9809235458
Ycentric toward East: -4541094.921570469
Zcentric toward North: 4351898.060411415
Latitude: 43.301000041646724
Longitude: -77.62666700000001
Height: 0.0043603163212537766
Xcentric toward prime meridian : 996208.9809235458
Ycentric toward East: -4541094.921570469
Zcentric toward North: 4351898.060411415
Note that the height return from inverse transform is 4mm different from the
input height.
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