| static private GetParametrization ( Vector2 x0, Vector2 x1, Vector2 x2 ) : float | ||
| x0 | Vector2 | |
| x1 | Vector2 | |
| x2 | Vector2 | |
| return | float | |
public static float CalcLineTranslation(Vector2 src, Vector2 dest, Vector3 srcPosition, Vector3 constraintDir)
{
srcPosition = Handles.matrix.MultiplyPoint(srcPosition);
constraintDir = Handles.matrix.MultiplyVector(constraintDir);
float num = 1f;
Vector3 forward = Camera.current.transform.forward;
if (Vector3.Dot(constraintDir, forward) < 0f)
{
num = -1f;
}
Vector3 vector = constraintDir;
vector.y = -vector.y;
Camera current = Camera.current;
Vector2 vector2 = EditorGUIUtility.PixelsToPoints(current.WorldToScreenPoint(srcPosition));
Vector2 vector3 = EditorGUIUtility.PixelsToPoints(current.WorldToScreenPoint(srcPosition + constraintDir * num));
Vector2 x = dest;
Vector2 x2 = src;
float result;
if (vector2 == vector3)
{
result = 0f;
}
else
{
x.y = -x.y;
x2.y = -x2.y;
float parametrization = HandleUtility.GetParametrization(x2, vector2, vector3);
float parametrization2 = HandleUtility.GetParametrization(x, vector2, vector3);
float num2 = (parametrization2 - parametrization) * num;
result = num2;
}
return result;
}
/// <summary>
/// <para>Map a mouse drag onto a movement along a line in 3D space.</para>
/// </summary>
/// <param name="src">The source point of the drag.</param>
/// <param name="dest">The destination point of the drag.</param>
/// <param name="srcPosition">The 3D position the dragged object had at src ray.</param>
/// <param name="constraintDir">3D direction of constrained movement.</param>
/// <returns>
/// <para>The distance travelled along constraintDir.</para>
/// </returns>
public static float CalcLineTranslation(Vector2 src, Vector2 dest, Vector3 srcPosition, Vector3 constraintDir)
{
srcPosition = Handles.matrix.MultiplyPoint(srcPosition);
constraintDir = Handles.matrix.MultiplyVector(constraintDir);
float num = 1f;
Vector3 forward = Camera.current.transform.forward;
if ((double)Vector3.Dot(constraintDir, forward) < 0.0)
{
num = -1f;
}
Vector3 vector3 = constraintDir;
vector3.y = -vector3.y;
Camera current = Camera.current;
Vector2 points1 = EditorGUIUtility.PixelsToPoints((Vector2)current.WorldToScreenPoint(srcPosition));
Vector2 points2 = EditorGUIUtility.PixelsToPoints((Vector2)current.WorldToScreenPoint(srcPosition + constraintDir * num));
Vector2 x0_1 = dest;
Vector2 x0_2 = src;
if (points1 == points2)
{
return(0.0f);
}
x0_1.y = -x0_1.y;
x0_2.y = -x0_2.y;
float parametrization = HandleUtility.GetParametrization(x0_2, points1, points2);
return((HandleUtility.GetParametrization(x0_1, points1, points2) - parametrization) * num);
}