QUAD_COEFFS Class Reference

#include <quadratc.h>

List of all members.

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Detailed Description

Used when computing splines, see quspline.cpp.

Definition at line 29 of file quadratc.h.

Public Member Functions

• void move (ICOORD vec)
• QUAD_COEFFS (double xsq, float x, float constant)
• QUAD_COEFFS ()
• float y (float x) const

Public Attributes

• double a
• float b
• float c

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Constructor & Destructor Documentation

QUAD_COEFFS::QUAD_COEFFS

(

)

[inline]

Definition at line 32 of file quadratc.h.

                  { 
    }                            //empty constructor

QUAD_COEFFS::QUAD_COEFFS	(	double	xsq,
		float	x,
		float	constant
	)			[inline]

Definition at line 34 of file quadratc.h.

References a, b, and c.

                                {
      a = xsq;
      b = x;
      c = constant;
    }

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Member Function Documentation

void QUAD_COEFFS::move

(

ICOORD

vec

)

[inline]

Definition at line 48 of file quadratc.h.

References a, b, c, and ICOORD::y().

Referenced by QSPLINE::move().

                          {  // by vector
      INT16 p = vec.x ();
      INT16 q = vec.y ();

      c = (float) (c - b * p + a * p * p + q);
      b = (float) (b - 2 * a * p);
    }

float QUAD_COEFFS::y

(

float

x

)

const [inline]

Definition at line 43 of file quadratc.h.

References a, b, and c.

Referenced by QSPLINE::y().

                           {  //at x
      return (float) ((a * x + b) * x + c);
    }

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Member Data Documentation

double QUAD_COEFFS::a

Definition at line 65 of file quadratc.h.

Referenced by QSPLINE::extrapolate(), move(), QSPLINE::QSPLINE(), QUAD_COEFFS(), tweak_row_baseline(), and y().

float QUAD_COEFFS::b

Definition at line 66 of file quadratc.h.

Referenced by QSPLINE::extrapolate(), move(), QSPLINE::QSPLINE(), QUAD_COEFFS(), tweak_row_baseline(), and y().

float QUAD_COEFFS::c

Definition at line 67 of file quadratc.h.

Referenced by QSPLINE::extrapolate(), move(), QSPLINE::QSPLINE(), QUAD_COEFFS(), tweak_row_baseline(), and y().

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The documentation for this class was generated from the following file:

• ccstruct/quadratc.h

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