RhinoMath

RhinoMath class

Provides constants and static methods that are additional to System.Math .

Derived Classes:

Namespace: Rhino
RhinoMath: references

Constructors (1)

RhinoMath()

Initializes a new instance of the RhinoMath class

Methods (20)

Clamp(double value, double bound1, double bound2)

Limits a double to be specified within an interval of two numbers, by specifying a fixed minimum and maximum.

Clamp(int value, int bound1, int bound2)

Restricts a int to be specified within an interval of two integers.

CRC32(uint currentRemainder, byte buffer)

Advances the cyclic redundancy check value remainder given a byte array. http://en.wikipedia.org/wiki/Cyclic_redundancy_check.

CRC32(uint currentRemainder, double value)

Advances the cyclic redundancy check value remainder given a double . http://en.wikipedia.org/wiki/Cyclic_redundancy_check.

CRC32(uint currentRemainder, int value)

Advances the cyclic redundancy check value remainder given a int . http://en.wikipedia.org/wiki/Cyclic_redundancy_check.

EpsilonEquals(double x, double y, double epsilon)

Compare two doubles for equality within some "epsilon" range

EpsilonEquals(float x, float y, float epsilon)

Compare to floats for equality within some "epsilon" range

EvaluateNormal(int limitDirection,Vector3d ds,Vector3d dt,Vector3d dss,Vector3d dst,Vector3d dtt,Vector3d n)

Expert tool to evaluate surface unit normal.

EvaluateNormalPartials(Vector3d ds,Vector3d dt,Vector3d dss,Vector3d dst,Vector3d dtt,Vector3d ns,Vector3d nt)

Expert tool to evaluate partial derivatives of surface unit normal.

IntIndexToString(int index)

Portrays an int index in text.

IsValidDouble(double x)

Determines whether a double value is valid within the RhinoCommon context.
Rhino does not use Double.NaN by convention, so this test evaluates to True if:
x is not equal to RhinoMath.UnsetValue
System.Double.IsNaN(x) evaluates to false
System.Double.IsInfinity(x) evaluates to false

IsValidSingle(float x)

Determines whether a float value is valid within the RhinoCommon context.
Rhino does not use Single.NaN by convention, so this test evaluates to True if:
x is not equal to RhinoMath.UnsetValue,
System.Single.IsNaN(x) evaluates to false
System.Single.IsInfinity(x) evaluates to false

MetersPerUnit(UnitSystem units)

Return number of meters per one unit of a given unit system

ParseNumber(string expression)

Evaluates command line math expression.

ToDegrees(double radians)

Convert an angle from radians to degrees.

ToRadians(double degrees)

Convert an angle from degrees to radians.

TryParseNumber(string expression, out double result)

Evaluates command line math expression.

UnitScale(UnitSystem from, double fromMetersPerUnit, UnitSystem to, double toMetersPerUnit)

Computes the scale factor for changing the measurements unit systems.

UnitScale(UnitSystem from, UnitSystem to)

Computes the scale factor for changing the measurements unit systems.

Wrap(double value, double bound1, double bound2)

Limits a double to be specified within an interval of two numbers by repeating the available interval cyclically.

Fields (12)

DefaultAngleTolerance

Represents the default angle tolerance, used when no other values are provided.
This is one degree, expressed in radians.

DefaultDistanceToleranceMillimeters

Get Rhino's default distance tolerance in millimeters.

Epsilon

Gets the value of DBL_EPSILON, which is the smallest positive floating point number x such that 1 + x != 1. This is different than Double.Epsilon which is the smallest positive Double value that is greater than zero.

HalfPI

Quarter of a rotation. 90 degrees. 1.57...

QuarterPI

One eigth of a rotation. 45 degrees. 0.78...

SqrtEpsilon

Represents a default value that is used when comparing square roots.
This value is several orders of magnitude larger than .

Tau

Ratio of circumference divided by radius. Full rotation. 360 degrees. 6.28...

TwoPI

Full rotation. 360 degrees. 6.28...

UnsetIntIndex

When signed int values are used in a context where 0 and small negative values are valid indices and there needs to be a value that indicates the index is not set.

UnsetSingle

Gets the single precision floating point number that is considered 'unset' in Rhino.

UnsetValue

Gets the Rhino standard Unset value. Use this value rather than Double.NaN when a bogus floating point value is required.

ZeroTolerance

Gets Rhino's Zero Tolerance constant, which is 2^-32. In cases when an absolute "zero" tolerance is required to compare model space coordinates, ZeroTolerance is used. The value of ZeroTolerance should be no smaller than RhinoMath.Epsilon and should be several orders of magnitude smaller than RhinoMath.SqrtEpsilon .

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