diff options
| author | Armin Weiss <aw@openoffice.org> | 2003-11-10 10:45:52 +0000 |
|---|---|---|
| committer | Armin Weiss <aw@openoffice.org> | 2003-11-10 10:45:52 +0000 |
| commit | ff3c6dbe35436fa508356a45b7367d4055cd6387 (patch) | |
| tree | 5325d2cd5ce67961f59260d70784e083c67bdad7 /basegfx/source/vector/b2dvector.cxx | |
| parent | e7fb8a71b60f4c6e94b4cafbe9d0badf427316e3 (diff) | |
Some error corrections, some additions to polygon stuff, making PolyPolygonCutter work
Diffstat (limited to 'basegfx/source/vector/b2dvector.cxx')
| -rw-r--r-- | basegfx/source/vector/b2dvector.cxx | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/basegfx/source/vector/b2dvector.cxx b/basegfx/source/vector/b2dvector.cxx index 92931c563125..1177396fefd1 100644 --- a/basegfx/source/vector/b2dvector.cxx +++ b/basegfx/source/vector/b2dvector.cxx @@ -2,9 +2,9 @@ * * $RCSfile: b2dvector.cxx,v $ * - * $Revision: 1.4 $ + * $Revision: 1.5 $ * - * last change: $Author: aw $ $Date: 2003-11-06 16:30:30 $ + * last change: $Author: aw $ $Date: 2003-11-10 11:45:52 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses @@ -163,13 +163,13 @@ namespace basegfx sal_Bool areParallel( const B2DVector& rVecA, const B2DVector& rVecB ) { - double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecA.getX()); + double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX()); return ::basegfx::numeric::fTools::equalZero(fVal); } B2DVectorOrientation getOrientation( const B2DVector& rVecA, const B2DVector& rVecB ) { - double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecA.getX()); + double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX()); if(fVal > 0.0) { @@ -195,6 +195,29 @@ namespace basegfx B2DVector aRes( rVec ); return aRes*=rMat; } + + ::basegfx::vector::B2DVectorContinuity getContinuity(const B2DVector& rBackVector, const B2DVector& rForwardVector ) + { + ::basegfx::vector::B2DVectorContinuity eRetval(::basegfx::vector::CONTINUITY_NONE); + + if(!rBackVector.equalZero() && !rForwardVector.equalZero()) + { + const B2DVector aInverseForwardVector(-rForwardVector.getX(), -rForwardVector.getY()); + + if(rBackVector.equal(aInverseForwardVector)) + { + // same direction and same length -> C2 + eRetval = ::basegfx::vector::CONTINUITY_C2; + } + else if(areParallel(rBackVector, aInverseForwardVector)) + { + // same direction -> C1 + eRetval = ::basegfx::vector::CONTINUITY_C1; + } + } + + return eRetval; + } } // end of namespace vector } // end of namespace basegfx |