public static List < Point4D_F64 > randomN ( Point3D_F64 center , double w , double stdev , int num , Random rand ) { List < Point4D_F64 > ret = new ArrayList <> ( ) ; for ( int i = 0 ; i < num ; i ++ ) { Point4D_F64 p = new Point4D_F64 ( ) ; p . x = center . x + rand . nextGaussian ( ) * stdev ; p . y = center . y + rand . nextGaussian ( ) * stdev ; p . z = center . z + rand . nextGaussian ( ) * stdev ; p . w = w ; ret . add ( p ) ; } return ret ; }
Normally distributed homogenous 3D point . w is fixed