TouchGFX
touchgfx::CWRUtil::arcsine() is only used within TouchGFX.
 
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CodeScopeSTM32 Libraries and SamplesTouchGFXtouchgfx::CWRUtil::arcsine()

touchgfx::CWRUtil::arcsine() method

@fn static int8_t arcsine(Q10 q10) Gets the arcsine of the given fraction (given as Q10). Gets the arcsine of the given fraction (given as Q10). The function is most precise for angles 0-45. To limit memory requirements, values above sqrt(1/2) is calculated as 90-arcsine(sqrt(1-q10^2)). Internally.

Syntax

static int8_t arcsine(Q10 q10);

Arguments

q10

The 10.

Return value

An int8_t.

References

LocationReferrerScopeText
CWRUtil.hpp:674
static int8_t arcsine(Q10 q10)
CWRUtil.hpp:687touchgfx::CWRUtil::arcsine()touchgfx::CWRUtil
return -arcsine(-q10);
CWRUtil.hpp:696touchgfx::CWRUtil::arcsine()touchgfx::CWRUtil
return 90 - arcsine(Q10(isqrt((1 << (Rasterizer::POLY_BASE_SHIFT * 4)) - int(q10) * int(q10))));
CWRUtil.hpp:860touchgfx::CWRUtil::_angle()touchgfx::CWRUtil
return arcsine(dy);

Call Tree

Functions calling touchgfx::CWRUtil::arcsine()
Functions called by touchgfx::CWRUtil::arcsine()
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touchgfx::CWRUtil::arcsine()
touchgfx::CWRUtil::Q10::operator int() const
touchgfx::CWRUtil::Q10::~Q10()
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Data read by touchgfx::CWRUtil::arcsine()
touchgfx::CWRUtil::arcsine()::arcsineTable
touchgfx::CWRUtil::arcsine()::q7
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touchgfx::CWRUtil::arcsine()
Type of touchgfx::CWRUtil::arcsine()
touchgfx::CWRUtil::arcsine()
int8_t
uint8_t
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