/*
public ParameterizedMousePosition(Position.IVirtualMousePosition mousePos, PointD newVirtualPosition, PointD newVelocity, PointD newAcceleration)
{
m_mouse = mousePos;
m_newPosition = newVirtualPosition;
m_newAcceleration = newAcceleration;
m_newVelocity = newVelocity;
* m_newDisplacement = m_mouse.GetDisplacement();
m_fakeTime = mousePos.GetTimeInterval();
}*/
public ParameterizedMousePosition(Position.IVirtualMousePosition mousePos, PointD newVelocity, PointD newAcceleration)
{
m_mouse = mousePos;
m_newPosition = mousePos.GetVirtualPointD();
m_newAcceleration = newAcceleration;
m_newVelocity = newVelocity;
m_newDisplacement = m_mouse.GetDisplacement();
m_fakeTime = mousePos.GetTimeInterval();
}
public ParameterizedMousePosition(Position.IVirtualMousePosition mousePos, int fakeTime)
{
m_mouse = mousePos;
m_newPosition = mousePos.GetVirtualPointD();
m_newAcceleration = mousePos.GetAcceleration();
m_newVelocity = mousePos.GetVelocity();
m_newDisplacement = m_mouse.GetDisplacement();
m_fakeTime = fakeTime;
}
public override PointD GetVelocity(Position.IVirtualMousePosition m)
{
PointD normalVector;
PointD nearPt;
double radius;
ExtendedNormalOfPoint(m.GetVirtualPointD(), out normalVector, out nearPt, out radius);
PointD dir = PointD.Orthogonal(normalVector);
PointD normalComponent = PointD.DotProduct(dir, m.GetVelocity()) * dir;
PointD tangentComponent = m.GetVelocity() - normalComponent;
return -1 * tangentComponent * m_Param.C;
}
public override PointD GetVelocity(Position.IVirtualMousePosition m)
{
// velocity restriction
double speed = m.GetSpeed();
double speedLimit = m_Param.C * 10 * GetStrength(m.GetVirtualPointD());
if (speed > speedLimit)
{
PointD maxParts = new PointD(speedLimit * m.GetUnitDirection().X, speedLimit * m.GetUnitDirection().Y);
return -1 * m.GetVelocity() + maxParts;
}
else
{
return PointD.Empty;
}
}
// called very frequently
public void MouseMoved(Position.VirtualMousePosition mouseMove)
{
m_virtualDelta.Add(mouseMove.GetVirtualPointD() - mouseMove.GetLastVirtualPointD());
m_realDelta.Add(new PointD (mouseMove.GetPhysicalPoint().X - mouseMove.GetLastPhysicalPoint().X,
mouseMove.GetPhysicalPoint().Y - mouseMove.GetLastPhysicalPoint().Y));
if (m_virtualDelta.Count > MouseLogger.TAIL_LENGTH)
{
// BUG: sometimes mouseMoved gets fired with no movement of the mouse,
// flooding the event queue with many points of data estimated to be
// > 40,000 points. Remove first half of the point data when such a
// condition may occur.
m_virtualDelta.RemoveRange(0, MouseLogger.TAIL_LENGTH / 2);
m_realDelta.RemoveRange(0, MouseLogger.TAIL_LENGTH / 2);
}
}
public override PointD GetVelocity(Position.IVirtualMousePosition m)
{
PointD orig = m.GetVelocity();
return orig * (1 + m_Param.C) * GetStrength(m.GetVirtualPointD());
}
public void Compute(Position.IVirtualMousePosition mousePosition, out bool filtersChanged)
{
int i = 0;
PointD sumVel = mousePosition.GetVelocity();
PointD sumAccel = mousePosition.GetAcceleration();
PointD displ = mousePosition.GetDisplacement();
Position.ParameterizedMousePosition mp = new Position.ParameterizedMousePosition(mousePosition);
int numInUse = 0;// instrumentation
filtersChanged = false; // flag out if filter state changes
for (i = 0; i < m_Filters.Count; i++)
{
if (m_Filters[i].Parameters.FilterEnabled )
{
if (m_Filters[i].HitTest(mousePosition.GetVirtualPointD()))
{
if (!m_Filters[i].Parameters.InUse)
m_Filters[i].Parameters.UseCounter++;
if (!m_Filters[i].Parameters.InUse)
filtersChanged = true;
m_Filters[i].Parameters.InUse = true;
numInUse++;// instrumentation
PointD vel = m_Filters[i].GetVelocity(mp);
if (!(double.IsNaN(vel.X) || double.IsInfinity(vel.X)
|| double.IsNaN(vel.Y) || double.IsNaN(vel.Y)))
{
sumVel += vel;
mp.SetVelocity(sumVel);
}
}
else
{
if (m_Filters[i].Parameters.InUse)
filtersChanged = true;
m_Filters[i].Parameters.InUse = false;
}
}
}
m_maxNumInUse = Math.Max(numInUse, m_maxNumInUse); // instrumentation
m_computedAcceleration = sumAccel;
m_computedVelocity = sumVel;
}
