public override void OnMouseMove(MouseEventArgs mouseEvent)
{
mouseOver = false;
// find the ray for this control
// check what face it hits
// mark that face to draw a highlight
base.OnMouseMove(mouseEvent);
// rotate the view
if (MouseDownOnWidget)
{
trackballTumbleWidgetExtended.DoRotateAroundOrigin(mouseEvent.Position);
}
else if (world != null &&
cubeTraceData != null) // Make sure we don't use the trace data before it is ready
{
Ray ray = world.GetRayForLocalBounds(mouseEvent.Position);
IntersectInfo info = cubeTraceData.GetClosestIntersection(ray);
if (info != null)
{
mouseOver = true;
DrawMouseHover(GetHitData(info.HitPosition));
}
else
{
ResetTextures();
}
}
}
public override void OnMouseMove(MouseEventArgs mouseEvent)
{
// find the ray for this control
// check what face it hits
// mark that face to draw a highlight
base.OnMouseMove(mouseEvent);
// rotate the view
if (MouseDownOnWidget)
{
var movePosition = mouseEvent.Position;
Quaternion activeRotationQuaternion = TrackBallController.GetRotationForMove(new Vector2(Width / 2, Height / 2), world, Width, lastMovePosition, movePosition, false);
if (activeRotationQuaternion != Quaternion.Identity)
{
lastMovePosition = movePosition;
interactionLayer.World.RotationMatrix = interactionLayer.World.RotationMatrix * Matrix4X4.CreateRotation(activeRotationQuaternion);
interactionLayer.Invalidate();
}
}
else if (world != null &&
cubeTraceData != null) // Make sure we don't use the trace data before it is ready
{
Ray ray = world.GetRayForLocalBounds(mouseEvent.Position);
IntersectInfo info = cubeTraceData.GetClosestIntersection(ray);
if (info != null)
{
var uV = ((TriangleShapeUv)info.closestHitObject).GetUv(info);
}
}
}
public override void OnMouseMove(MouseEventArgs mouseEvent)
{
mouseOver = false;
// find the ray for this control
// check what face it hits
// mark that face to draw a highlight
base.OnMouseMove(mouseEvent);
// rotate the view
if (MouseDownOnWidget)
{
var movePosition = mouseEvent.Position;
Quaternion activeRotationQuaternion = TrackBallController.GetRotationForMove(new Vector2(Width / 2, Height / 2), Width, lastMovePosition, movePosition, false);
if (activeRotationQuaternion != Quaternion.Identity)
{
lastMovePosition = movePosition;
object3DControlLayer.World.RotationMatrix = object3DControlLayer.World.RotationMatrix * Matrix4X4.CreateRotation(activeRotationQuaternion);
object3DControlLayer.Invalidate();
}
}
else if (world != null &&
cubeTraceData != null) // Make sure we don't use the trace data before it is ready
{
Ray ray = world.GetRayForLocalBounds(mouseEvent.Position);
IntersectInfo info = cubeTraceData.GetClosestIntersection(ray);
if (info != null)
{
mouseOver = true;
DrawMouseHover(GetHitData(info.HitPosition));
}
else
{
ResetTextures();
}
}
}
public void WorldViewPerspectiveProjectionTests()
{
var world = new WorldView(1, 1);
Assert.IsTrue(world.EyePosition.Equals(Vector3.UnitZ * 7, 1e-3));
world.CalculatePerspectiveMatrixOffCenter(567, 123, -200, 5, 55);
Assert.IsTrue(world.GetScreenPosition(new Vector3(0, 0, 0)).Equals(new Vector2((567 - 200) / 2.0, 123 / 2.0), 1e-3));
Assert.AreEqual(5, world.NearZ, 1e-3);
Assert.AreEqual(55, world.FarZ, 1e-3);
Assert.AreEqual(4.14213562373095, world.NearPlaneHeightInViewspace, 1e-3);
var ray = world.GetRayForLocalBounds(new Vector2((567 - 200) / 2.0, 123)); // top center
Assert.AreEqual(WorldView.DefaultPerspectiveVFOVDegrees / 2, MathHelper.RadiansToDegrees(Math.Atan2(ray.directionNormal.Y, -ray.directionNormal.Z)), 1e-3);
Assert.IsTrue((Vector3.UnitZ * 7).Equals(ray.origin, 1e-3));
Assert.AreEqual(world.NearPlaneHeightInViewspace * 2, world.GetViewspaceHeightAtPosition(new Vector3(1, 1, -10)), 1e-3);
world.Scale = 3;
Assert.AreEqual(world.NearPlaneHeightInViewspace * 2 / 3, world.GetWorldUnitsPerScreenPixelAtPosition(new Vector3(1, 1, (7 - 10) / 3.0)) * 123, 1e-3);
}
public void WorldViewOrthographicProjectionTests()
{
var world = new WorldView(1, 1);
Assert.IsTrue(world.EyePosition.Equals(Vector3.UnitZ * 7, 1e-3));
world.CalculateOrthogrphicMatrixOffCenterWithViewspaceHeight(680, 240, -200, 128, 5, 55);
Assert.IsTrue(world.GetScreenPosition(new Vector3(0, 0, 0)).Equals(new Vector2((680 - 200) / 2.0, 240 / 2.0), 1e-3));
Assert.IsTrue(world.GetScreenPosition(new Vector3(128, 64, 0)).Equals(new Vector2(680 - 200, 240), 1e-3));
Assert.IsTrue(world.GetScreenPosition(new Vector3(-128, -64, 0)).Equals(new Vector2(0, 0), 1e-3));
Assert.AreEqual(5, world.NearZ, 1e-3);
Assert.AreEqual(55, world.FarZ, 1e-3);
Assert.AreEqual(128, world.NearPlaneHeightInViewspace, 1e-3);
var ray = world.GetRayForLocalBounds(new Vector2((680 - 200) / 2.0, 240)); // top center
Assert.IsTrue(Vector3.UnitZ.Equals(-ray.directionNormal.GetNormal(), 1e-3));
Assert.IsTrue(new Vector3(0, 64, 2).Equals(ray.origin, 1e-3));
Assert.AreEqual(world.NearPlaneHeightInViewspace, world.GetViewspaceHeightAtPosition(new Vector3(1, 1, -10)), 1e-3);
world.Scale = 3;
Assert.AreEqual(world.NearPlaneHeightInViewspace / 3, world.GetWorldUnitsPerScreenPixelAtPosition(new Vector3(1, 1, (7 - 10) / 3.0)) * 240, 1e-3);
}
public Ray GetRay(double screenX, double screenY)
{
return(world.GetRayForLocalBounds(new Vector2(screenX, screenY)));
}
