CS::Math::Noise Namespace Reference
Noise generation and utilities. More...
Namespaces | |
namespace | Model |
Geometric models for noise generation. | |
namespace | Module |
Noise modules for the combination of noise functions. | |
Enumerations | |
enum | NoiseQuality { QUALITY_FAST = 0, QUALITY_STD = 1, QUALITY_BEST = 2 } |
Enumerates the noise quality. More... | |
Functions | |
int | ClampValue (int value, int lowerBound, int upperBound) |
Clamps a value onto a clamping range. | |
double | CubicInterp (double n0, double n1, double n2, double n3, double a) |
Performs cubic interpolation between two values bound between two other values. | |
template<class T > | |
T | GetMax (const T &a, const T &b) |
Returns the maximum of two values. | |
template<class T > | |
T | GetMin (const T &a, const T &b) |
Returns the minimum of two values. | |
double | GradientCoherentNoise3D (double x, double y, double z, int seed=0, NoiseQuality noiseQuality=QUALITY_STD) |
Generates a gradient-coherent-noise value from the coordinates of a three-dimensional input value. | |
double | GradientNoise3D (double fx, double fy, double fz, int ix, int iy, int iz, int seed=0) |
Generates a gradient-noise value from the coordinates of a three-dimensional input value and the integer coordinates of a nearby three-dimensional value. | |
int | IntValueNoise3D (int x, int y, int z, int seed=0) |
Generates an integer-noise value from the coordinates of a three-dimensional input value. | |
void | LatLonToXYZ (double lat, double lon, double &x, double &y, double &z) |
Converts latitude/longitude coordinates on a unit sphere into 3D Cartesian coordinates. | |
double | LinearInterp (double n0, double n1, double a) |
Performs linear interpolation between two values. | |
double | MakeInt32Range (double n) |
Modifies a floating-point value so that it can be stored in a CS::Math::Noise::int32 variable. | |
double | SCurve3 (double a) |
Maps a value onto a cubic S-curve. | |
double | SCurve5 (double a) |
Maps a value onto a quintic S-curve. | |
template<class T > | |
void | SwapValues (T &a, T &b) |
Swaps two values. | |
double | ValueCoherentNoise3D (double x, double y, double z, int seed=0, NoiseQuality noiseQuality=QUALITY_STD) |
Generates a value-coherent-noise value from the coordinates of a three-dimensional input value. | |
double | ValueNoise3D (int x, int y, int z, int seed=0) |
Generates a value-noise value from the coordinates of a three-dimensional input value. | |
Variables | |
const double | DEG_TO_RAD = PI / 180.0 |
Converts an angle from degrees to radians. | |
const double | RAD_TO_DEG = 1.0 / DEG_TO_RAD |
Converts an angle from radians to degrees. | |
const double | SQRT_2 = 1.4142135623730950488 |
Pi. | |
const double | SQRT_3 = 1.7320508075688772935 |
Square root of 3. |
Detailed Description
Noise generation and utilities.
Objects from this namespace use the libnoise library, see http://libnoise.sourceforge.net for more information.
Function Documentation
int CS::Math::Noise::ClampValue | ( | int | value, | |
int | lowerBound, | |||
int | upperBound | |||
) | [inline] |
Clamps a value onto a clamping range.
- Parameters:
-
value The value to clamp. lowerBound The lower bound of the clamping range. upperBound The upper bound of the clamping range.
- Returns:
- value if value lies between lowerBound and upperBound.
- lowerBound if value is less than lowerBound.
- upperBound if value is greater than upperBound.
This function does not modify any parameters.
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