public ClothoidArc2(double l0,
Vec2d point0, Vec2d point1,
double radius0, double radius1,
double a)
{
// Correccion sobre los radios.
if (SysMath.Sign(radius1) != SysMath.Sign(radius0))
{
if (double.IsInfinity(radius0))
{
radius0 = SysMath.Sign(radius1) * double.PositiveInfinity;
}
else if (double.IsInfinity(radius1))
{
radius1 = SysMath.Sign(radius0) * double.PositiveInfinity;
}
else
{
// Se deja tal cual.
//// Se toma el radio inicio como infinito.
////radius0 = SysMath.Sign(radius1) * double.PositiveInfinity;
}
}
if (SysMath.Abs(radius0) > SysMath.Abs(radius1))
{ // t positivas
this.invertY = radius1 < 0;
}
else
{ // t negativa
this.invertY = radius1 > 0;
}
// Diferencia de puntos en coordenadas reales.
Vec2d v01 = point1.Sub(point0);
this.a = a;
// Desarrollo segun el radio en el punto (0) y (1).
double l0_n = ClothoUtils.ClothoL(radius0, this.invertY, this.a);
double l1_n = ClothoUtils.ClothoL(radius1, this.invertY, this.a);
// Coordenadas en el punto (0) y (1) para una clotoide normalizada.
Vec2d p0_n = ClothoUtils.Clotho(l0_n, this.invertY, this.a);
Vec2d p1_n = ClothoUtils.Clotho(l1_n, this.invertY, this.a);
Vec2d v01_n = p1_n.Sub(p0_n);
// Rotacion de v01_n -> v01.
double r = vecMath.Angle(v01_n, v01);
// Transformacion a aplicar.
this.transform = Transform2.Translate(point1.X - p1_n.X, point1.Y - p1_n.Y)
.Mult(Transform2.Rotate(p1_n.X, p1_n.Y, r));
this.l0 = l0_n;
this.l1 = l1_n;
this.SetTInterval(l0, l0 + (this.l1 - this.l0));
}
// --------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// Case insensitive string comparison. May not work for all cultures. Suitable for fast sorting of alphanumeric strings
/// only.
/// </summary>
public static int AlphaNumericStrCompare_NoCase(string x, string y)
{
int xLen = x.Length;
int yLen = y.Length;
int minLen = SysMath.Min(xLen, yLen);
int comp = 0;
int i = 0;
while (comp == 0 & i < minLen)
{
int xc = x[i];
int yc = y[i];
if ((uint)(xc - 'a') <= (uint)('z' - 'a'))
{
xc -= 0x20;
}
if ((uint)(yc - 'a') <= (uint)('z' - 'a'))
{
yc -= 0x20;
}
comp = xc - yc;
++i;
}
if (comp == 0)
{
comp = xLen - yLen;
}
return(SysMath.Sign(comp));
}
public static ClothoidArc2 BuildSimple(double radius0, double radius1, double a, ITransform2 transform)
{
// Correccion sobre los radios.
if (SysMath.Sign(radius1) != SysMath.Sign(radius0))
{
if (double.IsInfinity(radius0))
{
radius0 = SysMath.Sign(radius1) * double.PositiveInfinity;
}
else if (double.IsInfinity(radius1))
{
radius1 = SysMath.Sign(radius0) * double.PositiveInfinity;
}
else
{
// No se permite cambio de signo en el radio. Funcionaria???
Contract.Assert(false);
}
}
// Desarrollo segun el radio en el punto (0) y (1).
double l0 = ClothoUtils.ClothoL(radius0, false, a);
double l1 = ClothoUtils.ClothoL(radius1, false, a);
ClothoidArc2 clotho = new ClothoidArc2(transform, l0, l1, false, a);
clotho.SetTInterval(0, Math.Abs(l1 - l0));
return(clotho);
}
private void updateMouseInput()
{
var currentState = Mouse.GetState();
if (_previousMouseState.X != currentState.X || _previousMouseState.Y != currentState.Y)
{
if (isAnyMouseButtonPressed(currentState))
{
_inputProcessor.touchDragged(currentState.X, currentState.Y, 0);
}
else
{
_inputProcessor.mouseMoved(currentState.X, currentState.Y);
}
}
if (_previousMouseState.ScrollWheelValue != currentState.ScrollWheelValue)
{
_inputProcessor.scrolled(
Math.Sign(currentState.ScrollWheelValue - _previousMouseState.ScrollWheelValue));
}
if (_previousMouseState.LeftButton != currentState.LeftButton)
{
if (currentState.LeftButton == ButtonState.Pressed)
{
_inputProcessor.touchDown(currentState.X, currentState.Y, 0, org.mini2Dx.gdx.Input.Buttons.LEFT);
}
else
{
_inputProcessor.touchUp(currentState.X, currentState.Y, 0, org.mini2Dx.gdx.Input.Buttons.LEFT);
}
}
if (_previousMouseState.MiddleButton != currentState.MiddleButton)
{
if (currentState.MiddleButton == ButtonState.Pressed)
{
_inputProcessor.touchDown(currentState.X, currentState.Y, 0, org.mini2Dx.gdx.Input.Buttons.MIDDLE);
}
else
{
_inputProcessor.touchUp(currentState.X, currentState.Y, 0, org.mini2Dx.gdx.Input.Buttons.MIDDLE);
}
}
if (_previousMouseState.RightButton != currentState.RightButton)
{
if (currentState.RightButton == ButtonState.Pressed)
{
_inputProcessor.touchDown(currentState.X, currentState.Y, 0, org.mini2Dx.gdx.Input.Buttons.RIGHT);
}
else
{
_inputProcessor.touchUp(currentState.X, currentState.Y, 0, org.mini2Dx.gdx.Input.Buttons.RIGHT);
}
}
_previousMouseState = currentState;
}
public ClothoidArc2(double l0,
Vector2d point0, Vector2d point1,
double radius0, double radius1)
{
// Correccion sobre los radios.
if (SysMath.Sign(radius1) != SysMath.Sign(radius0))
{
if (double.IsInfinity(radius0))
{
radius0 = SysMath.Sign(radius1) * double.PositiveInfinity;
}
else if (double.IsInfinity(radius1))
{
radius1 = SysMath.Sign(radius0) * double.PositiveInfinity;
}
else
{
// No se permite cambio de signo en el radio. Funcionaria???
Contract.Assert(false);
}
}
if (SysMath.Abs(radius0) > SysMath.Abs(radius1))
{
// t positivas
this.InvertY = radius1 < 0;
}
else
{
// t negativa
this.InvertY = radius1 > 0;
}
// Diferencia de puntos en coordenadas reales.
Vector2d v01 = point1.Sub(point0);
this.A = SolveParam(v01.Length, radius0, radius1);
// Desarrollo segun el radio en el punto (0) y (1).
double l0_n = ClothoUtils.ClothoL(radius0, this.InvertY, this.A);
double l1_n = ClothoUtils.ClothoL(radius1, this.InvertY, this.A);
// Coordenadas en el punto (0) y (1) para una clotoide normalizada.
Point2d p0_n = ClothoUtils.Clotho(l0_n, this.InvertY, this.A);
Point2d p1_n = ClothoUtils.Clotho(l1_n, this.InvertY, this.A);
Vector2d v01_n = p1_n.Sub(p0_n);
// Rotacion de v01_n -> v01.
double r = v01_n.AngleTo(v01);
// Transformacion a aplicar.
this.transform = Transform2.Translate(point1.X - p1_n.X, point1.Y - p1_n.Y)
.Concat(Transform2.Rotate(p1_n.X, p1_n.Y, r));
this.l0 = l0_n;
this.l1 = l1_n;
this.SetTInterval(l0, l0 + (this.l1 - this.l0));
}
/// <summary>
/// Computes the new motor velocity based on the current velocity, such that the velocity always moves towards
/// the set point (if regulation is active), or the acceleration curve dictated by the <see cref="Acceleration" />
/// property.
/// The magnitude of the returned speed will never be greater than <see cref="StepperMotor.MaximumSpeed" /> which in turn
/// can never
/// exceed <see cref="StepperMotor.MaximumPossibleSpeed" />.
/// <see cref="StepperMotor.MaximumSpeed" />.
/// </summary>
/// <returns>The computed velocity, in steps per second.</returns>
/// <remarks>
/// A positive value indicates speed in the forward direction, while a negative value indicates speed in the reverse
/// direction.
/// 'forward' is defined as motion towards a higher position value; 'reverse' is defined as motion towards a lower
/// position value.
/// No attempt is made here to define the mechanical direction. A speed value that is within
/// <see cref="StepperMotor.MotorStoppedThreshold" />
/// of zero is considered to mean that the motor should be stopped.
/// </remarks>
double ComputeAcceleratedVelocity()
{
var distanceToGo = ComputeDistanceToTarget();
var absoluteDistance = Math.Abs(distanceToGo);
var direction = Math.Sign(distanceToGo);
if (distanceToGo == 0)
{
return(0.0); // We're there.
}
if (!IsMoving)
{
return(Math.Sqrt(2.0 * Acceleration) * direction); // Accelerate away from stop.
}
// Compute the unconstrained target speed based on the deceleration curve or the regulation set point.
var targetSpeed = regulating ? speedSetpoint : Math.Sqrt(2.0 * absoluteDistance * Acceleration) * direction;
// The change in speed is a function of the absolute current speed and acceleration.
var increment = Acceleration / Math.Abs(motorSpeed);
var directionOfChange = Math.Sign(targetSpeed - motorSpeed);
var newSpeed = motorSpeed + increment * directionOfChange;
// The computed new speed must be constrained by both the MaximumSpeed and the acceleration curve.
var clippedSpeed = newSpeed.ConstrainToLimits(-maximumSpeed, +maximumSpeed);
return(clippedSpeed);
}
public static WavefrontFormat DrawClothoRadius(this WavefrontFormat wf,
bool invertY, double a,
string radiusColor)
{
List <int> indices = new List <int>();
double lmax = ClothoUtils.GetMaxL(a);
int c = 100;
for (int i = -c; i <= c; i++)
{
double s = i * lmax / c;
double r = ClothoUtils.ClothoRadius(s, invertY, a);
if (double.IsInfinity(r))
{
r = SysMath.Sign(r) * 1000;
}
int v0 = wf.AddVertex(new Point2d(s, r));
indices.Add(v0);
//double dx, dy;
//MathUtils.DClotho(s, r, a, out dx, out dy);
}
wf.UseMaterial(radiusColor);
wf.AddLines(indices, false);
return(wf);
}
/// <summary>
/// Moves the motor at a regulated speed, using acceleration whenever the speed changes.
/// Once moving, the speed may be changed by calling this method again with the new value.
/// To decelerate to a stop, call this method with a speed of 0.
/// </summary>
/// <param name="speed">The target speed.</param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// speed;speed must be in the range -MaximumPossibleSpeed to
/// +MaximumPossibleSpeed
/// </exception>
public void MoveAtRegulatedSpeed(double speed)
{
var absoluteSpeed = Math.Abs(speed);
if (absoluteSpeed > MaximumPossibleSpeed)
{
throw new ArgumentOutOfRangeException("speed",
"speed must be in the range -MaximumPossibleSpeed to +MaximumPossibleSpeed");
}
//if (maximumSpeed < absoluteSpeed)
// maximumSpeed = absoluteSpeed;
// Set the target position, effectively, infinitely far away so we will never stop.
targetPosition = speed >= 0 ? int.MaxValue : int.MinValue;
speedSetpoint = absoluteSpeed < MotorStoppedThreshold ? 0.0 : speed;
var direction = (short)Math.Sign(targetPosition - currentPosition);
lock (motorUpdateLock)
{
regulating = true;
if (!IsMoving)
{
StartStepping(direction);
}
}
}
/// <summary>
/// Returns the root of the number.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="root">The root.</param>
/// <returns>System.Double.</returns>
public static double Root(double value, int root)
{
if (IsZeroSign(root))
{
throw new DivideByZeroException("Root cannot be zero.");
}
return(IsOdd(root) ? NMath.Sign(value) * Pow(NMath.Abs(value), 1d / root) : Pow(value, 1d / root));
}
private void updateMouseInput()
{
if (previousMouseState.X != currentMouseState.X || previousMouseState.Y != currentMouseState.Y)
{
if (isAnyMouseButtonPressed(currentMouseState))
{
inputProcessor.touchDragged(currentMouseState.X, currentMouseState.Y, 0);
}
else
{
inputProcessor.mouseMoved(currentMouseState.X, currentMouseState.Y);
}
}
if (previousMouseState.ScrollWheelValue != currentMouseState.ScrollWheelValue)
{
inputProcessor.scrolled(0,
-Math.Sign(currentMouseState.ScrollWheelValue - previousMouseState.ScrollWheelValue));
}
if (previousMouseState.LeftButton != currentMouseState.LeftButton)
{
if (currentMouseState.LeftButton == ButtonState.Pressed)
{
inputProcessor.touchDown(currentMouseState.X, currentMouseState.Y, 0, Org.Mini2Dx.Gdx.Input_n_Buttons.LEFT_);
}
else
{
inputProcessor.touchUp(currentMouseState.X, currentMouseState.Y, 0, Org.Mini2Dx.Gdx.Input_n_Buttons.LEFT_);
}
}
if (previousMouseState.MiddleButton != currentMouseState.MiddleButton)
{
if (currentMouseState.MiddleButton == ButtonState.Pressed)
{
inputProcessor.touchDown(currentMouseState.X, currentMouseState.Y, 0, Org.Mini2Dx.Gdx.Input_n_Buttons.MIDDLE_);
}
else
{
inputProcessor.touchUp(currentMouseState.X, currentMouseState.Y, 0, Org.Mini2Dx.Gdx.Input_n_Buttons.MIDDLE_);
}
}
if (previousMouseState.RightButton != currentMouseState.RightButton)
{
if (currentMouseState.RightButton == ButtonState.Pressed)
{
inputProcessor.touchDown(currentMouseState.X, currentMouseState.Y, 0, Org.Mini2Dx.Gdx.Input_n_Buttons.RIGHT_);
}
else
{
inputProcessor.touchUp(currentMouseState.X, currentMouseState.Y, 0, Org.Mini2Dx.Gdx.Input_n_Buttons.RIGHT_);
}
}
}
/// <summary>
/// The x-coordinates of a line intersecting a circle centered at 0,0.
/// </summary>
/// <param name="radius">>Radius of the circle centered at 0,0.</param>
/// <param name="lineLength"></param>
/// <param name="incidence"></param>
/// <param name="determinant"></param>
/// <param name="delta"></param>
/// <returns></returns>
public static double[] CircleLineIntersectX(
double radius,
double lineLength,
double incidence,
double determinant,
Offset delta)
{
return((determinant * delta.Y() / lineLength.Squared()).PlusMinus(
NMath.Sign(delta.Y()) * delta.X() * NMath.Sqrt(incidence) / lineLength.Squared()));
}
void HandleAccelerationTimerTick(object ignored)
{
var accelerationSign = Math.Sign(targetVelocity - CurrentVelocity);
var acceleratedVelocity = ComputeAcceleratedVelocity(Acceleration * accelerationSign);
var newVelocity = accelerationSign >= 0 ? Accelerate(acceleratedVelocity) : Decelerate(acceleratedVelocity);
Debug.Print("Velocity " + newVelocity.ToString("F4"));
motorWinding.SetOutputPowerAndPolarity(newVelocity);
CurrentVelocity = newVelocity;
}
private void HandleAccelerationTimerTick(object ignored)
{
int num = Math.Sign(_targetVelocity - CurrentVelocity);
double acceleratedVelocity = ComputeAcceleratedVelocity(Acceleration * num);
double duty = num >= 0 ? Accelerate(acceleratedVelocity) : Decelerate(acceleratedVelocity);
Debug.Print("Velocity " + duty.ToString("F4"));
_motorWinding.SetOutputPowerAndPolarity(duty);
CurrentVelocity = duty;
}
/// <summary>
/// Reduces a given angle to a value between -π and +π radians.
/// </summary>
/// <param name="radians">The angle in radians.</param>
/// <param name="tolerance">The tolerance.</param>
/// <returns>System.Double.</returns>
public static double WrapAngleWithinPositiveNegativePi(double radians, double tolerance = Numbers.ZeroTolerance)
{
double wrappedAngleWithinTwoPi = WrapAngleWithinTwoPi(radians, tolerance);
if (NMath.Abs(wrappedAngleWithinTwoPi) > Numbers.Pi)
{
return(-NMath.Sign(wrappedAngleWithinTwoPi) * (Numbers.TwoPi - NMath.Abs(wrappedAngleWithinTwoPi)));
}
return(wrappedAngleWithinTwoPi);
}
public static ITransform2 EvaluateTransform(Point2d point0, Point2d point1,
double radius0, double radius1,
double a)
{
// Correccion sobre los radios.
if (SysMath.Sign(radius1) != SysMath.Sign(radius0))
{
if (double.IsInfinity(radius0))
{
radius0 = SysMath.Sign(radius1) * double.PositiveInfinity;
}
else if (double.IsInfinity(radius1))
{
radius1 = SysMath.Sign(radius0) * double.PositiveInfinity;
}
else
{
// No se permite cambio de signo en el radio. Funcionaria???
Contract.Assert(false);
}
}
bool invertY;
if (SysMath.Abs(radius0) > SysMath.Abs(radius1))
{
// t positivas
invertY = radius1 < 0;
}
else
{
// t negativa
invertY = radius1 > 0;
}
// Diferencia de puntos en coordenadas reales.
Vector2d v01 = point1.Sub(point0);
// Desarrollo segun el radio en el punto (0) y (1).
double l0_n = ClothoUtils.ClothoL(radius0, invertY, a);
double l1_n = ClothoUtils.ClothoL(radius1, invertY, a);
// Coordenadas en el punto (0) y (1) para una clotoide normalizada.
Point2d p0_n = ClothoUtils.Clotho(l0_n, invertY, a);
Point2d p1_n = ClothoUtils.Clotho(l1_n, invertY, a);
Vector2d v01_n = p1_n.Sub(p0_n);
// Rotacion de v01_n -> v01.
double r = v01_n.AngleTo(v01);
// Transformacion a aplicar.
return(Transform2.Translate(point1.X - p1_n.X, point1.Y - p1_n.Y)
.Concat(Transform2.Rotate(p1_n.X, p1_n.Y, r)));
}
/// <summary>
/// Reduces a given angle to a value between π and -π.
/// </summary>
/// <param name="radians"></param>
/// <returns></returns>
public static double WrapAngle(double radians)
{
int revolutions = (int)NMath.Floor(radians / Numbers.TwoPi);
double wrappedAngle = radians - revolutions * Numbers.TwoPi;
if (NMath.Abs(wrappedAngle) > Numbers.Pi)
{
return(-NMath.Sign(wrappedAngle) * (Numbers.TwoPi - NMath.Abs(wrappedAngle)));
}
return(wrappedAngle);
}
/// <summary>
/// Converts to a date time.
/// </summary>
/// <param name="cache"></param>
/// <param name="unadjustedDate"></param>
/// <param name="businessDayAdjustments"></param>
/// <param name="offset"></param>
/// <param name="nameSpace"></param>
/// <returns></returns>
public static DateTime ToAdjustedDate(ICoreCache cache, DateTime unadjustedDate, BusinessDayAdjustments businessDayAdjustments, Offset offset, string nameSpace)
{
if (DayTypeEnum.Business != offset.dayType && DayTypeEnum.Calendar != offset.dayType)
{
throw new NotSupportedException(
$"Only {DayTypeEnum.Business}, {DayTypeEnum.Calendar} day types supported of Offset type.");
}
IBusinessCalendar businessCalendar = BusinessCenterHelper.ToBusinessCalendar(cache, businessDayAdjustments.businessCenters, nameSpace);
int periodMultiplier = Int32.Parse(offset.periodMultiplier);
// offset using calendar days
//
switch (offset.dayType)
{
case DayTypeEnum.Business:
{
switch (offset.period)
{
case PeriodEnum.D:
{
// Advance using given number of business days
//
int periodMultiplierSign = Math.Sign(periodMultiplier);
DateTime offsetedDate = unadjustedDate;
while (periodMultiplier-- > 0)
{
offsetedDate = offsetedDate.AddDays(periodMultiplierSign);
offsetedDate = businessCalendar.Roll(offsetedDate, businessDayAdjustments.businessDayConvention);
}
return(offsetedDate);
}
default:
throw new NotSupportedException(
$"{offset.period} not supported in conjunction with '{offset.dayType} day type'");
} //~switch(offset.period)
}
case DayTypeEnum.Calendar:
{
// Convert offset to period.
DateTime adjustedDate = offset.Add(unadjustedDate);
return(adjustedDate);
}
default:
{
throw new NotSupportedException(
$"Only {DayTypeEnum.Business}, {DayTypeEnum.Calendar} day types supported of Offset type.");
}
}
}
/// <summary>
/// Moves one step in the indicated direction.
/// </summary>
/// <param name="direction">
/// A signed integer value indicating The direction to step. Any positive value results in a single forward step.
/// any negative value results in a backward step. Zero results in no step.
/// </param>
public void MoveOneStep(int direction)
{
var safeDirection = Math.Sign(direction);
if (safeDirection == 0)
{
return; // Not moving.
}
RaiseBeforeStep(this);
stepper.PerformStep(safeDirection);
currentPosition += safeDirection;
if (currentPosition > limitOfTravel || currentPosition < 0)
{
WrapPosition();
}
}
/// <summary>
/// Moves the motor to the specified position.
/// </summary>
/// <param name="target">The target position, in steps.</param>
public void MoveToTargetPosition(int target)
{
var moveDirection = (short)Math.Sign(target - currentPosition);
if (moveDirection == 0)
{
AllStop();
return;
}
lock (motorUpdateLock)
{
targetPosition = target;
regulating = false;
StartStepping(moveDirection);
}
}
/// <summary>
/// Obtiene el centro de la circunferencia que pasa por los 2 puntos, con el radio indicado.
/// Dependiendo del criterio (leftRule), se interpreta el signo del radio:
/// Si leftRule entonces el radio se multiplica por la normal a la izquierda (leftNormal) para obtener el centro de la
/// circunferencia.
/// Si rightRule (!leftRule) entonces el radio se multiplica por la normal a la derecha (rightNormal) para obtener el
/// centro de la circunferencia.
/// Clip utiliza un criterio rightRule.
/// <p />
/// Criterio rightRule:
/// <c><![CDATA[
/// _ _
/// _ / \c
/// _/ O pf O
/// _/ / / \
/// / _/ radio - _/ |
/// / /| radio + <-- /| |
/// | / --> / /
/// / / / _/
/// |/ / _/
/// O pi O__/
/// \ _/
/// ]]></c>
/// <![CDATA[
/// p1 a/2 pm a/2 p2
/// x---------+-------->x
/// \ | /
/// \ | /
/// \ | /
/// \ |b /
/// \ | / r
/// \ | /
/// \ | /
/// \ | /
/// \|/
/// pc
/// ]]>
/// Teniendo como dato p1, p2 y r, tenemos que obtener el centro del circulo que pasa por
/// p1 y p2, con radio r.
/// Con el vector 1-2 obtenemos la distancia a.
/// b es calculado mediante la fórmula b = raizcua(r * r + a/2 * a/2).
/// Creamos un vector perpendicular al 1-2 a una distacion a/2 desde p1 y obtenemos
/// el punto central de la circunferencia.
/// Con este dato y conociendo el radio ya simplemente calculamos la esquina del rectangulo.
/// Si el radio es positivo, avanza en sentido contrario a las agujas del reloj.
/// Si el radio es negativo, avanza en sentido de las agujas del reloj.
/// <![CDATA[
/// + p2
/// /|\
/// |
/// /____ | ____\
/// \ \___ | ___/ /
/// \__ | __/
/// \_ | _/
/// radio - \ | / radio +
/// (giro \ | / (giro horario)
/// antihorario) \|/
/// |
/// + p1
/// ]]>
/// </summary>
/// <exception cref="CalculoImposibleException">
/// Indica que no se puede calcular el
/// centro.
/// </exception>
public static Vec2d EvaluateCenter(Vec2d pt0, Vec2d pt1, double radius, bool leftRule)
{
// Vector direccion normalizado y longitud.
Vec2d dir = pt1.Sub(pt0);
double a = dir.Length;
if (a.EpsilonEquals(0))
{
throw new Exception("CalculoImposible: Puntos coincidentes.");
}
dir = dir.Div(a);
// Punto medio.
Vec2d pm = vecMath.Interpolate(pt0, pt1, 0.5);
// Se tratan radios erroneos que no permitan generar un circunferencia.
double v = radius * radius - a * a / 4;
if (v.EpsilonEquals(0))
{
return(pm);
}
if (v < 0)
{
throw new Exception("CalculoImposible: Radio erroneo.");
}
double b = SysMath.Sign(radius) * SysMath.Sqrt(v);
Vec2d normal;
if (leftRule)
{
// Vector normal a la izquierda.
normal = vecMath.PerpLeft(dir);
}
else
{
// Vector normal a la derecha.
normal = vecMath.PerpRight(dir);
}
Vec2d vectorm1 = normal.Mul(b);
return(pm.Add(vectorm1));
}
private void Sign_()
{
new Validator("sign")
.OneParameter()
.FloatOrInteger()
.Validate(this.stack);
var x = this.Pop();
IValue y = x switch
{
Value.Int i => new Value.Int(i.Value.Sign),
Value.Float f => new Value.Float(M.Sign(f.Value)),
_ => throw new NotSupportedException(),
};
this.Push(y);
}
/// <summary>
/// Calcula el radios de la curva.
/// </summary>
public static double ClothoRadius(double s, bool invertY, double a)
{
double radius;
if (s.EpsilonEquals(0))
{
radius = MathUtils.SafeSign(s) * double.PositiveInfinity; // Punto de inflexion, puede ser (+) o (-).
}
else
{
radius = (a * a / s);
if (SysMath.Abs(radius) >= MAX_RADIUS)
{
radius = SysMath.Sign(radius) * double.PositiveInfinity;
}
}
if (invertY)
{
radius = -radius;
}
return(radius);
}
public static int Math_Sign(ILuaState luaState)
{
luaState.PushNumber(Math.Sign(luaState.ToNumber(-1)));
return(1);
}
public static long Sign(long n_value)
{
return(CSMath.Sign(n_value));
}
public static long Sign(double d_value)
{
return(CSMath.Sign(d_value));
}
/// <summary>
/// Returns the sign of the number: -1, 0, or 1.
/// </summary>
/// <param name="integer">A number.</param>
/// <returns name="sign">The sign of the number: -1, 0, or 1.</returns>
public static long Sign(long integer)
{
return(CSMath.Sign(integer));
}
/* DISABLE - LC - 070 Pre-release
* public static double Round(double value, int digits, MidpointRounding mode)
* {
* return CSMath.Round(value, digits, mode);
* }
*/
/// <summary>
/// Returns the sign of the number: -1, 0, or 1.
/// </summary>
/// <param name="number">A number.</param>
/// <returns name="sign">The sign of the number: -1, 0, or 1.</returns>
public static long Sign(double number)
{
return(CSMath.Sign(number));
}
// Inverse Cosecant
public static double Arccosec(double x)
{
return(MathObj.Atan(MathObj.Sign(x) / MathObj.Sqrt(x * x - 1)));
}
// Inverse Hyperbolic Cosecant
public static double HArccosec(double x)
{
return(MathObj.Log((MathObj.Sign(x) * MathObj.Sqrt(x * x + 1) + 1) / x));
}
/// <summary>
/// Trace should be in map coordinates
/// Trace is aborted when nodeCallback is true.
/// </summary>
/// <param name="trace"></param>
/// <returns></returns>
public bool Traverse(RayTrace trace, Func <Point3, bool> nodeCallback)
{
//trace.Ray = new Ray(trace.Ray.Position - GridOffset, trace.Ray.Direction);
//TODO: ALLWAYS RETURNS TRUE
Vector3 tDelta;
tDelta.X = NodeSize / M.Abs(trace.Ray.Direction.X); // how far we must move in the ray direction before we encounter a new voxel in x-direction
tDelta.Y = NodeSize / M.Abs(trace.Ray.Direction.Y); // same but y-direction
tDelta.Z = NodeSize / M.Abs(trace.Ray.Direction.Z);
var endDist = trace.End;
//Only support ints!!
if (endDist > int.MaxValue)
{
endDist = int.MaxValue;
}
var start = trace.Ray.Position + trace.Ray.Direction * trace.Start;
var end = trace.Ray.Position + trace.Ray.Direction * endDist;
var dir = trace.Ray.Direction;
// We work in grid coordinates, with grid size rescaled to 1
start -= GridOffset;
end -= GridOffset;
start /= NodeSize;
end /= NodeSize;
// start voxel coordinates
Point3 pos = new Point3((int)start.X, (int)start.Y, (int)start.Z);
// end voxel coordinates
Point3 endPos = new Point3((int)end.X, (int)end.Y, (int)end.Z);
// decide which direction to start walking in
var step = new Point3(M.Sign(dir.X), M.Sign(dir.Y), M.Sign(dir.Z));
// Distance to the next intersection
Vector3 dist;
// calculate distance to first intersection in the voxel we start from
dist = pos;
if (dir.X > 0)
{
dist.X = dist.X + 1;
}
if (dir.Y > 0)
{
dist.Y = dist.Y + 1;
}
if (dir.Z > 0)
{
dist.Z = dist.Z + 1;
}
Vector3 dirInverse = new Vector3(1 / dir.X, 1 / dir.Y, 1 / dir.Z);
dist -= start;
//dist = Vector3.Modulate(dist, step.ToVector3()); Signs are in the dirInverse :))
dist = Vector3.Modulate(dist, dirInverse * NodeSize);
if (dir.X == 0)
{
dist.X = float.PositiveInfinity;
}
if (dir.Y == 0)
{
dist.Y = float.PositiveInfinity;
}
if (dir.Z == 0)
{
dist.Z = float.PositiveInfinity;
}
bool reachedX = false, reachedY = false, reachedZ = false;
while (true)
{
if (nodeCallback(pos))
{
break;
}
if (step.X > 0)
{
if (pos.X >= endPos.X)
{
reachedX = true;
}
}
else
if (pos.X <= endPos.X)
{
reachedX = true;
}
if (step.Y > 0)
{
if (pos.Y >= endPos.Y)
{
reachedY = true;
}
}
else
if (pos.Y <= endPos.Y)
{
reachedY = true;
}
if (step.Z > 0)
{
if (pos.Z >= endPos.Z)
{
reachedZ = true;
}
}
else
if (pos.Z <= endPos.Z)
{
reachedZ = true;
}
if (reachedX && reachedY && reachedZ)
{
break;
}
if (dist.X < dist.Y && dist.X < dist.Z)
{
// progress X
pos.X += step.X;
dist.X += tDelta.X;
}
else if (dist.Y < dist.Z)
{
// progress Y
pos.Y += step.Y;
dist.Y += tDelta.Y;
}
else
{
// progress Z
pos.Z += step.Z;
dist.Z += tDelta.Z;
}
}
return(true);
}