lv_nanovg_math.h

Defines

NVG_MATH_PI

NVG_MATH_HALF_PI

NVG_MATH_TWO_PI

NVG_DEG_TO_RAD

NVG_RAD_TO_DEG

NVG_MATH_TANF(x)

NVG_MATH_SINF(x)

NVG_MATH_COSF(x)

NVG_MATH_ASINF(x)

NVG_MATH_ACOSF(x)

NVG_MATH_FABSF(x)

NVG_MATH_SQRTF(x)

NVG_MATH_RADIANS(deg)

NVG_MATH_DEGREES(rad)

Functions

static inline bool nvg_math_is_zero(float a)

Check if the floating point number is zero

Parameters:

a – the number to check

Returns:

true if the number is zero, false otherwise

static inline bool nvg_math_is_equal(float a, float b)

Check if two floating point numbers are equal

Parameters:

• a – the first number

• b – the second number

Returns:

true if the numbers are equal, false otherwise

static inline float nvg_math_inv_sqrtf(float number)

Calculate the inverse square root (1/sqrt(x))

Parameters:

number – the input number

Returns:

the inverse square root