SkTCoincident Class Reference

#include <SkPathOpsTSect.h>

Public Member Functions
	SkTCoincident ()
void	debugInit ()
char	dumpIsCoincidentStr () const
void	dump () const
bool	isMatch () const
void	init ()
void	markCoincident ()
const SkDPoint &	perpPt () const
double	perpT () const
void	setPerp (const SkTCurve &c1, double t, const SkDPoint &cPt, const SkTCurve &)

Detailed Description

Definition at line 37 of file SkPathOpsTSect.h.

Constructor & Destructor Documentation

SkTCoincident()

SkTCoincident::SkTCoincident ( )

inline

Definition at line 39 of file SkPathOpsTSect.h.

                    {
        this->init();
    }

Member Function Documentation

debugInit()

void SkTCoincident::debugInit ( )

inline

Definition at line 43 of file SkPathOpsTSect.h.

                     {
#ifdef SK_DEBUG
        this->fPerpPt.fX = this->fPerpPt.fY = SK_ScalarNaN;
        this->fPerpT = SK_ScalarNaN;
        this->fMatch = 0xFF;
#endif
    }

dump()

void SkTCoincident::dump

(

)

const

Definition at line 1190 of file PathOpsDebug.cpp.

                               {
    SkDebugf("t=%1.9g pt=(%1.9g,%1.9g)%s\n", fPerpT, fPerpPt.fX, fPerpPt.fY,
            fMatch ? " match" : "");
}

dumpIsCoincidentStr()

char SkTCoincident::dumpIsCoincidentStr

(

)

const

Definition at line 1183 of file PathOpsDebug.cpp.

                                              {
    if (!!fMatch != fMatch) {
        return '?';
    }
    return fMatch ? '*' : 0;
}

init()

void SkTCoincident::init ( )

inline

Definition at line 59 of file SkPathOpsTSect.h.

                {
        fPerpT = -1;
        fMatch = false;
        fPerpPt.fX = fPerpPt.fY = SK_ScalarNaN;
    }

isMatch()

bool SkTCoincident::isMatch ( ) const

inline

Definition at line 54 of file SkPathOpsTSect.h.

                         {
        SkASSERT(!!fMatch == fMatch);
        return SkToBool(fMatch);
    }

markCoincident()

void SkTCoincident::markCoincident ( )

inline

Definition at line 65 of file SkPathOpsTSect.h.

                          {
        if (!fMatch) {
            fPerpT = -1;
        }
        fMatch = true;
    }

perpPt()

const SkDPoint & SkTCoincident::perpPt ( ) const

inline

Definition at line 72 of file SkPathOpsTSect.h.

                                   {
        return fPerpPt;
    }

perpT()

double SkTCoincident::perpT ( ) const

inline

Definition at line 76 of file SkPathOpsTSect.h.

                         {
        return fPerpT;
    }

setPerp()

void SkTCoincident::setPerp	(	const SkTCurve &	c1,
		double	t,
		const SkDPoint &	cPt,
		const SkTCurve &	c2
	)

Definition at line 28 of file SkPathOpsTSect.cpp.

                                                 {
    SkDVector dxdy = c1.dxdyAtT(t);
    SkDLine perp = {{ cPt, {cPt.fX + dxdy.fY, cPt.fY - dxdy.fX} }};
    SkIntersections i  SkDEBUGCODE((c1.globalState()));
    int used = i.intersectRay(c2, perp);
    // only keep closest
    if (used == 0 || used == 3) {
        this->init();
        return;
    }
    fPerpT = i[0][0];
    fPerpPt = i.pt(0);
    SkASSERT(used <= 2);
    if (used == 2) {
        double distSq = (fPerpPt - cPt).lengthSquared();
        double dist2Sq = (i.pt(1) - cPt).lengthSquared();
        if (dist2Sq < distSq) {
            fPerpT = i[0][1];
            fPerpPt = i.pt(1);
        }
    }
#if DEBUG_T_SECT
    SkDebugf("setPerp t=%1.9g cPt=(%1.9g,%1.9g) %s oppT=%1.9g fPerpPt=(%1.9g,%1.9g)\n",
            t, cPt.fX, cPt.fY,
            cPt.approximatelyEqual(fPerpPt) ? "==" : "!=", fPerpT, fPerpPt.fX, fPerpPt.fY);
#endif
    fMatch = cPt.approximatelyEqual(fPerpPt);
#if DEBUG_T_SECT
    if (fMatch) {
        SkDebugf("%s", "");  // allow setting breakpoint
    }
#endif
}

---

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

• third_party/skia/src/pathops/SkPathOpsTSect.h
• third_party/skia/src/pathops/SkPathOpsTSect.cpp
• third_party/skia/tests/PathOpsDebug.cpp