.net - WPF、3D カメラが正しく回転しない

Question

編集

あ、それともう一つ、ロングティチュートはいいけど、ラティチュートが1.57くらいになったらひっくり返る…

編集作業！

あ、あと一回転すると回転数だけがたまり始めます。各回転後にtempMouseをリセットする必要があると思います。

    private void mouseWheel(object sender, MouseWheelEventArgs  e)
    {
        if (e.Delta < 0) { distance = distance - 0.5; } else { distance = distance + 0.5; }

        Point3D position = new Point3D
            (
                Math.Cos(longitude) * Math.Cos(latitude) * distance,
                Math.Sin(latitude) * distance,
                Math.Sin(longitude) * Math.Cos(latitude) * distance
            );

       _perspectiveCamera.Position = position;
    }


    private void mouseMove(object sender, MouseEventArgs e)
    {

        if ( e.LeftButton == MouseButtonState.Pressed )
        {
            if (isLeftDown == false)
            {
                isLeftDown = true;
                tempMouseX = this.PointToScreen(Mouse.GetPosition(this)).X;
                tempMouseY = this.PointToScreen(Mouse.GetPosition(this)).Y;
            }
            else
            {
                double currentDelataX = tempMouseX - this.PointToScreen(Mouse.GetPosition(this)).X;
                double currentDelataY = tempMouseY - this.PointToScreen(Mouse.GetPosition(this)).Y;

                longitude = longitude - currentDelataX / 5000;
                latitude = latitude - currentDelataY / 5000;



                Point3D objectPosition = new Point3D(0, 0, 0);

                Point3D position = new Point3D
                    (
                        Math.Cos(longitude) * Math.Cos(latitude) * distance,
                        Math.Sin(latitude) * distance,
                        Math.Sin(longitude) * Math.Cos(latitude) * distance
                    );

                _perspectiveCamera.Position = position;

                Vector3D lookDirection = objectPosition - position;
                _perspectiveCamera.LookDirection = lookDirection;


            }

        }

        /////////////////////////////////////////

        if (e.LeftButton == MouseButtonState.Released)
        {
            isLeftDown = false;
        }


    }