Public Member Functions
	KisATanTable ()

	~KisATanTable ()

Public Attributes
qreal *	ATanTable

quint32	NUM_ATAN_ENTRIES

Detailed Description

Definition at line 23 of file kis_fast_math.cpp.

Constructor & Destructor Documentation

◆ KisATanTable()

KisATanTable::KisATanTable ( )

inline

Definition at line 25 of file kis_fast_math.cpp.

                   {
        qreal nf = ::sqrt(MAX_SECOND_DERIV_IN_RANGE / (8 * MAX_ERROR));
        NUM_ATAN_ENTRIES = int(nf) + 1;
        // Build table
        qreal y = 10.0;
        qreal x;
        ATanTable = new qreal[NUM_ATAN_ENTRIES + 1];
        ATanTable[0] = 0.0;
        for (quint32 i = 1; i <= NUM_ATAN_ENTRIES; i++) {
            x = (y / i) * NUM_ATAN_ENTRIES;
            ATanTable[i] = (qreal)::atan2(y, x);
        }
 
    }

References ATanTable, MAX_ERROR, MAX_SECOND_DERIV_IN_RANGE, and NUM_ATAN_ENTRIES.

◆ ~KisATanTable()

KisATanTable::~KisATanTable ( )

inline

Definition at line 40 of file kis_fast_math.cpp.

                    {
        delete [] ATanTable;
    }

References ATanTable.

Member Data Documentation

◆ ATanTable

qreal* KisATanTable::ATanTable

Definition at line 45 of file kis_fast_math.cpp.

◆ NUM_ATAN_ENTRIES

quint32 KisATanTable::NUM_ATAN_ENTRIES

Definition at line 44 of file kis_fast_math.cpp.

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

libs/image/kis_fast_math.cpp

Public Member Functions