private static ManipulationVelocities ConvertVelocities(ManipulationVelocities2D velocities)
{
return(new ManipulationVelocities(
new Vector(velocities.LinearVelocityX, velocities.LinearVelocityY),
AngleUtil.RadiansToDegrees(velocities.AngularVelocity),
new Vector(velocities.ExpansionVelocityX, velocities.ExpansionVelocityY)));
}
internal static void ApplyParameters(InertiaRotationBehavior behavior, InertiaProcessor2D processor, double initialVelocity)
{
if (behavior != null && behavior.CanUseForInertia())
{
InertiaRotationBehavior2D behavior2D = new InertiaRotationBehavior2D();
if (behavior._isInitialVelocitySet)
{
behavior2D.InitialVelocity = (float)AngleUtil.DegreesToRadians(behavior._initialVelocity);
}
else
{
behavior2D.InitialVelocity = (float)AngleUtil.DegreesToRadians(initialVelocity);
}
if (behavior._isDesiredDecelerationSet)
{
behavior2D.DesiredDeceleration = (float)AngleUtil.DegreesToRadians(behavior._desiredDeceleration);
}
if (behavior._isDesiredRotationSet)
{
behavior2D.DesiredRotation = (float)AngleUtil.DegreesToRadians(behavior._desiredRotation);
}
processor.RotationBehavior = behavior2D;
}
}
private static ManipulationDelta ConvertDelta(ManipulationDelta2D delta, ManipulationDelta add)
{
if (add != null)
{
return(new ManipulationDelta(
new Vector(delta.TranslationX + add.Translation.X, delta.TranslationY + add.Translation.Y),
AngleUtil.RadiansToDegrees(delta.Rotation) + add.Rotation,
new Vector(delta.ScaleX * add.Scale.X, delta.ScaleY * add.Scale.Y),
new Vector(delta.ExpansionX + add.Expansion.X, delta.ExpansionY + add.Expansion.Y)));
}
else
{
return(new ManipulationDelta(
new Vector(delta.TranslationX, delta.TranslationY),
AngleUtil.RadiansToDegrees(delta.Rotation),
new Vector(delta.ScaleX, delta.ScaleY),
new Vector(delta.ExpansionX, delta.ExpansionY)));
}
}