1.全球视角

//全球视角

        private void button16_Click(object sender, EventArgs e)

        {

            GSOCameraState camestate = new GSOCameraState();

            camestate.Longitude = 109.07286491474;

            camestate.Latitude = 37.3716091749733;

            camestate.Distance = 20732473.52;

            globeControl1.Globe.JumpToCameraState(camestate);

        }

//正北方向

        private void button17_Click(object sender, EventArgs e)

        {

            GSOCameraState camestate = globeControl1.Globe.CameraState;

            camestate.Heading = 0.0;

            globeControl1.Globe.JumpToCameraState(camestate);

        }

//垂直视角

        private void button18_Click(object sender, EventArgs e)

        {

            GSOCameraState camestate = globeControl1.Globe.CameraState;

            camestate.Tilt = 0.0;

            globeControl1.Globe.FlyToCameraState(camestate);

        }

//锁定垂直视角

        bool isLockVerticalCamera = false;

        private void button20_Click(object sender, EventArgs e)

        {

            isLockVerticalCamera = !isLockVerticalCamera;

        }

//地上视角

        private void button21_Click(object sender, EventArgs e)

        {

            if (globeControl1.Globe.CameraMode==EnumCameraMode.UnderGround||globeControl1.Globe.CameraMode==EnumCameraMode.Walk)

                {

                globeControl1.Globe.CameraMode = EnumCameraMode.Navigation;

                GSOCameraState state = globeControl1.Globe.CameraState;

                if (globeControl1.Globe.CameraState.Tilt < 95 &&globeControl1.Globe.CameraState.Tilt > 85)

                {

                    state.Tilt = 85;

                }

                else

                {

                    state.Tilt = 180 - globeControl1.Globe.CameraState.Tilt;

                }

                //跳转

                globeControl1.Globe.JumpToCameraState(state);

            }

            else

            {

                globeControl1.Globe.CameraMode = EnumCameraMode.Navigation;

            }

        }

//地下视角

        private void button22_Click(object sender, EventArgs e)

        {

            globeControl1.Globe.CameraMode = EnumCameraMode.UnderGround;

            GSOCameraState state = globeControl1.Globe.CameraState;

            if (globeControl1.Globe.CameraState.Tilt < 95 &&

          globeControl1.Globe.CameraState.Tilt > 85)

            {

                state.Tilt = 95;

            }

            else

            {

                state.Tilt = 180 - globeControl1.Globe.CameraState.Tilt;

            }

            globeControl1.Globe.JumpToCameraState(state);

        }

//行走视角

        private void button23_Click(object sender, EventArgs e)

        {

            globeControl1.Globe.CameraMode = EnumCameraMode.Walk;

        }