Fct_Random

Return a random floating point values between -1.0 and 1.0.

Syntax

float Fct_Random_Float(

void

) ;

Parameters

This function does not have a parameter.

Return value

This function return a random floating point value.

Remarks

This random number generator is based on the algorithm presented in "Random Number Generators: Good ones are hard to find", Stephen K. Park and Keith W. Miller, Communications of the ACM, Vol 31, Num10, October 1988.

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example

...

SLICEO_DB int Fct_Point_2D_Insert( unsigned short flag, SliceO_Window *window, SliceO_Frame *frame, int id )

{

...

// --- assign default random saturated color ---

float red, grn, blu ;

float hue = (Fct_Random_Float() + 1.0f) / 2.0f;

HLS_to_RGB( hue, 0.5f, 1.0f, &red, &grn, &blu ) ;

(*Point_Cur)->Color_Set( (unsigned char) (red * 255),

(unsigned char) (grn * 255),

(unsigned char) (blu * 255) ) ;

...

}

...