private void BuildScene02()
{
var uri = new Uri("ziyang.ciml", UriKind.Relative);
var map = new TongJi.Gis.Map(XDocument.Load(Application.GetResourceStream(uri).Stream).Root);
var city = new TongJi.City.Analysis3D.CityScene(map);
BuildScene(city.Meshes);
var pos = ToVector3(city.Meshes[0].Bounds.min);
pos.Z = 500;
Camera = new OneAxisLevelFlyCamera(pos, Vector3.UnitX + Vector3.UnitY, GraphicsDevice);
//Camera = new ArcBallCamera(ToVector3(city.Meshes[0].Bounds.min), ToVector3(city.Meshes[0].Bounds.min), -MathHelper.Pi * 100, MathHelper.Pi * 100, 1, 1000, GraphicsDevice);
}
void UpdateCamera()
{
float c1 = 1;
float c2 = 30;
// Get the new keyboard and mouse state
MouseState mouseState = Mouse.GetState();
KeyboardState keyState = Microsoft.Xna.Framework.Input.Keyboard.GetState();
// Determine how much the camera should turn
float deltaX = (float)lastMouseState.X - (float)mouseState.X;
float deltaY = (float)lastMouseState.Y - (float)mouseState.Y;
float vX = 0;
float vY = 0;
if (mouseState.X > 0.9 * width)
{
vX = -1;
}
else if (mouseState.X < 0.1 * width)
{
vX = 1;
}
if (mouseState.Y > 0.9 * height)
{
vY = -1;
}
else if (mouseState.Y < 0.1 * height)
{
vY = 1;
}
//WriteLine(deltaX);
//WriteLine(deltaY);
if (scene.Camera is FreeFlyCamera)
{
FreeFlyCamera camera = scene.Camera as FreeFlyCamera;
// Rotate the camera
camera.RotateLeftRight((c1 * deltaX + c2 * vX) * .0005f);
camera.RotateUpDown(-(c1 * deltaY + c2 * vY) * .0005f);
// Determine in which direction to move the camera
if (keyState.IsKeyDown(Key.W))
{
camera.Move(1, 0);
}
if (keyState.IsKeyDown(Key.S))
{
camera.Move(-1, 0);
}
if (keyState.IsKeyDown(Key.A))
{
camera.Move(0, 1);
}
if (keyState.IsKeyDown(Key.D))
{
camera.Move(0, -1);
}
// Update the camera
camera.Update();
}
else if (scene.Camera is OneAxisLevelFlyCamera)
{
OneAxisLevelFlyCamera camera = scene.Camera as OneAxisLevelFlyCamera;
// Rotate the camera
camera.RotateLeftRight((c1 * deltaX + c2 * vX) * .0005f);
camera.RotateUpDown(-(c1 * deltaY + c2 * vY) * .0005f);
// Determine in which direction to move the camera
if (keyState.IsKeyDown(Key.W))
{
camera.Move(1, 0);
}
if (keyState.IsKeyDown(Key.S))
{
camera.Move(-1, 0);
}
if (keyState.IsKeyDown(Key.A))
{
camera.Move(0, 1);
}
if (keyState.IsKeyDown(Key.D))
{
camera.Move(0, -1);
}
// Update the camera
camera.Update();
}
else if (scene.Camera is TwoAxesLevelFlyCamera)
{
TwoAxesLevelFlyCamera camera = scene.Camera as TwoAxesLevelFlyCamera;
// Rotate the camera
camera.RotateLeftRight((c1 * deltaX + c2 * vX) * .0005f);
camera.RotateUpDown(-(c1 * deltaY + c2 * vY) * .05f);
// Determine in which direction to move the camera
if (keyState.IsKeyDown(Key.W))
{
camera.Move(1, 0);
}
if (keyState.IsKeyDown(Key.S))
{
camera.Move(-1, 0);
}
if (keyState.IsKeyDown(Key.A))
{
camera.Move(0, 1);
}
if (keyState.IsKeyDown(Key.D))
{
camera.Move(0, -1);
}
// Update the camera
camera.Update();
}
// Update the mouse state
lastMouseState = mouseState;
}
