How to use

calcObserPosition

method

in

org.deegree.rendering.r3d.ViewFrustum

/**
 * Create a view Frustum by using the given roll, pitch, yaw and distance to the point of interest (looking at), to
 * calculate the eye and the up vector.
 * 
 * @param pitch
 * @param yaw
 * @param roll
 * @param distance
 * @param lookingAt
 * @param fovy
 *            the field-of-view in y direction
 * @param aspect
 * @param zNear
 * @param zFar
 */
public ViewFrustum( double pitch, double yaw, double roll, double distance, Point3d lookingAt, double fovy,
          double aspect, double zNear, double zFar ) {
  Point3d calculatedEye = calcObserPosition( lookingAt, pitch, yaw, distance );
  Vector3d calculatedUp = calcUp( roll, calculatedEye, lookingAt );
  setPerspectiveParams( fovy, aspect, zNear, zFar );
  setCameraParams( calculatedEye, lookingAt, calculatedUp );
}