KisScreentoneScreentoneFunctions::DotsEllipseLinear_Legacy Class Reference

#include <KisScreentoneScreentoneFunctions.h>

Public Member Functions
qreal	operator() (qreal x, qreal y) const

Detailed Description

Definition at line 119 of file KisScreentoneScreentoneFunctions.h.

Member Function Documentation

operator()()

qreal KisScreentoneScreentoneFunctions::DotsEllipseLinear_Legacy::operator()	(	qreal	x,
		qreal	y ) const

Definition at line 161 of file KisScreentoneScreentoneFunctions.cpp.

{
    // This is the function used for the elliptical spots in Krita 4.*
    // It is wrong because it produces too dark values. The function should
    // produce a value of 1 at the corners of the screen cell
    constexpr qreal ellipseRatioX = 0.4 / M_SQRT2;
    constexpr qreal ellipseRatioY = 0.6 / M_SQRT2;
    x = triangle(x) * ellipseRatioX;
    y = triangle(y) * ellipseRatioY;
    return std::sqrt(x * x + y * y) * M_SQRT2;
}

References KisScreentoneScreentoneFunctions::triangle().

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

• plugins/generators/screentone/KisScreentoneScreentoneFunctions.h
• plugins/generators/screentone/KisScreentoneScreentoneFunctions.cpp