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-rw-r--r--drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx769
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diff --git a/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx b/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx
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+++ b/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <primitive3d/polygontubeprimitive3d.hxx>
+#include <drawinglayer/attribute/materialattribute3d.hxx>
+#include <basegfx/matrix/b3dhommatrix.hxx>
+#include <basegfx/polygon/b3dpolypolygon.hxx>
+#include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx>
+#include <basegfx/polygon/b3dpolypolygontools.hxx>
+#include <drawinglayer/primitive3d/transformprimitive3d.hxx>
+#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
+#include <mutex>
+
+namespace drawinglayer::primitive3d
+{
+ namespace // anonymous namespace
+ {
+ class TubeBuffer
+ {
+ private:
+ // data for buffered tube primitives
+ Primitive3DContainer m_aLineTubeList;
+ sal_uInt32 m_nLineTubeSegments;
+ attribute::MaterialAttribute3D m_aLineMaterial;
+ std::mutex m_aMutex;
+ public:
+ TubeBuffer()
+ : m_nLineTubeSegments(0)
+ {
+ }
+
+ TubeBuffer(const TubeBuffer&) = delete;
+ const TubeBuffer& operator=(const TubeBuffer&) = delete;
+
+ Primitive3DContainer getLineTubeSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial)
+ {
+ // may exclusively change cached data, use mutex
+ std::unique_lock aGuard(m_aMutex);
+
+ if (nSegments != m_nLineTubeSegments || !(rMaterial == m_aLineMaterial))
+ {
+ m_nLineTubeSegments = nSegments;
+ m_aLineMaterial = rMaterial;
+ m_aLineTubeList = Primitive3DContainer();
+ }
+
+ if (m_aLineTubeList.empty() && m_nLineTubeSegments != 0)
+ {
+ const basegfx::B3DPoint aLeft(0.0, 0.0, 0.0);
+ const basegfx::B3DPoint aRight(1.0, 0.0, 0.0);
+ basegfx::B3DPoint aLastLeft(0.0, 1.0, 0.0);
+ basegfx::B3DPoint aLastRight(1.0, 1.0, 0.0);
+ basegfx::B3DHomMatrix aRot;
+ aRot.rotate(2 * M_PI / static_cast<double>(m_nLineTubeSegments), 0.0, 0.0);
+ m_aLineTubeList.resize(m_nLineTubeSegments);
+
+ for(sal_uInt32 a = 0; a < m_nLineTubeSegments; ++a)
+ {
+ const basegfx::B3DPoint aNextLeft(aRot * aLastLeft);
+ const basegfx::B3DPoint aNextRight(aRot * aLastRight);
+ basegfx::B3DPolygon aNewPolygon;
+
+ aNewPolygon.append(aNextLeft);
+ aNewPolygon.setNormal(0, basegfx::B3DVector(aNextLeft - aLeft));
+
+ aNewPolygon.append(aLastLeft);
+ aNewPolygon.setNormal(1, basegfx::B3DVector(aLastLeft - aLeft));
+
+ aNewPolygon.append(aLastRight);
+ aNewPolygon.setNormal(2, basegfx::B3DVector(aLastRight - aRight));
+
+ aNewPolygon.append(aNextRight);
+ aNewPolygon.setNormal(3, basegfx::B3DVector(aNextRight - aRight));
+
+ aNewPolygon.setClosed(true);
+
+ const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon);
+ const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, m_aLineMaterial, false));
+ m_aLineTubeList[a] = xRef;
+
+ aLastLeft = aNextLeft;
+ aLastRight = aNextRight;
+ }
+ }
+ return m_aLineTubeList;
+ }
+ };
+
+ Primitive3DContainer getLineTubeSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial)
+ {
+ // static data for buffered tube primitives
+ static TubeBuffer theTubeBuffer;
+ return theTubeBuffer.getLineTubeSegments(nSegments, rMaterial);
+ }
+
+ class CapBuffer
+ {
+ private:
+ // data for buffered cap primitives
+ Primitive3DContainer m_aLineCapList;
+ sal_uInt32 m_nLineCapSegments;
+ attribute::MaterialAttribute3D m_aLineMaterial;
+ std::mutex m_aMutex;
+ public:
+ CapBuffer()
+ : m_nLineCapSegments(0)
+ {
+ }
+ CapBuffer(const CapBuffer&) = delete;
+ const CapBuffer& operator=(const CapBuffer&) = delete;
+
+ Primitive3DContainer getLineCapSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial)
+ {
+ // may exclusively change cached data, use mutex
+ std::unique_lock aGuard(m_aMutex);
+
+ if (nSegments != m_nLineCapSegments || !(rMaterial == m_aLineMaterial))
+ {
+ m_nLineCapSegments = nSegments;
+ m_aLineMaterial = rMaterial;
+ m_aLineCapList = Primitive3DContainer();
+ }
+
+ if (m_aLineCapList.empty() && m_nLineCapSegments != 0)
+ {
+ const basegfx::B3DPoint aNull(0.0, 0.0, 0.0);
+ basegfx::B3DPoint aLast(0.0, 1.0, 0.0);
+ basegfx::B3DHomMatrix aRot;
+ aRot.rotate(2 * M_PI / static_cast<double>(m_nLineCapSegments), 0.0, 0.0);
+ m_aLineCapList.resize(m_nLineCapSegments);
+
+ for(sal_uInt32 a = 0; a < m_nLineCapSegments; ++a)
+ {
+ const basegfx::B3DPoint aNext(aRot * aLast);
+ basegfx::B3DPolygon aNewPolygon;
+
+ aNewPolygon.append(aLast);
+ aNewPolygon.setNormal(0, basegfx::B3DVector(aLast - aNull));
+
+ aNewPolygon.append(aNext);
+ aNewPolygon.setNormal(1, basegfx::B3DVector(aNext - aNull));
+
+ aNewPolygon.append(aNull);
+ aNewPolygon.setNormal(2, basegfx::B3DVector(-1.0, 0.0, 0.0));
+
+ aNewPolygon.setClosed(true);
+
+ const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon);
+ const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, m_aLineMaterial, false));
+ m_aLineCapList[a] = xRef;
+
+ aLast = aNext;
+ }
+ }
+
+ return m_aLineCapList;
+ }
+ };
+
+ Primitive3DContainer getLineCapSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial)
+ {
+ // static data for buffered cap primitives
+ static CapBuffer theCapBuffer;
+ return theCapBuffer.getLineCapSegments(nSegments, rMaterial);
+ }
+
+ class CapRoundBuffer
+ {
+ private:
+ // data for buffered capround primitives
+ Primitive3DContainer m_aLineCapRoundList;
+ sal_uInt32 m_nLineCapRoundSegments;
+ attribute::MaterialAttribute3D m_aLineMaterial;
+ std::mutex m_aMutex;
+ public:
+ CapRoundBuffer()
+ : m_nLineCapRoundSegments(0)
+ {
+ }
+ CapRoundBuffer(const CapRoundBuffer&) = delete;
+ const CapRoundBuffer& operator=(const CapRoundBuffer&) = delete;
+
+ Primitive3DContainer getLineCapRoundSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial)
+ {
+ // may exclusively change cached data, use mutex
+ std::unique_lock aGuard(m_aMutex);
+
+ if (nSegments != m_nLineCapRoundSegments || !(rMaterial == m_aLineMaterial))
+ {
+ m_nLineCapRoundSegments = nSegments;
+ m_aLineMaterial = rMaterial;
+ m_aLineCapRoundList = Primitive3DContainer();
+ }
+
+ if (m_aLineCapRoundList.empty() && m_nLineCapRoundSegments)
+ {
+ // calculate new horizontal segments
+ sal_uInt32 nVerSeg(nSegments / 2);
+
+ if (nVerSeg < 1)
+ {
+ nVerSeg = 1;
+ }
+
+ // create half-sphere; upper half of unit sphere
+ basegfx::B3DPolyPolygon aSphere(
+ basegfx::utils::createUnitSphereFillPolyPolygon(
+ nSegments,
+ nVerSeg,
+ true,
+ M_PI_2, 0.0,
+ 0.0, 2 * M_PI));
+ const sal_uInt32 nCount(aSphere.count());
+
+ if (nCount)
+ {
+ // rotate to have sphere cap oriented to negative X-Axis; do not
+ // forget to transform normals, too
+ basegfx::B3DHomMatrix aSphereTrans;
+
+ aSphereTrans.rotate(0.0, 0.0, M_PI_2);
+ aSphere.transform(aSphereTrans);
+ aSphere.transformNormals(aSphereTrans);
+
+ // realloc for primitives and create based on polygon snippets
+ m_aLineCapRoundList.resize(nCount);
+
+ for (sal_uInt32 a = 0; a < nCount; ++a)
+ {
+ const basegfx::B3DPolygon& aPartPolygon(aSphere.getB3DPolygon(a));
+ const basegfx::B3DPolyPolygon aPartPolyPolygon(aPartPolygon);
+
+ // need to create one primitive per Polygon since the primitive
+ // is for planar PolyPolygons which is definitely not the case here
+ m_aLineCapRoundList[a] = new PolyPolygonMaterialPrimitive3D(
+ aPartPolyPolygon,
+ rMaterial,
+ false);
+ }
+ }
+ }
+
+ return m_aLineCapRoundList;
+ }
+
+ };
+
+ Primitive3DContainer getLineCapRoundSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial)
+ {
+ // static data for buffered cap primitives
+ static CapRoundBuffer theCapRoundBuffer;
+ return theCapRoundBuffer.getLineCapRoundSegments(nSegments, rMaterial);
+ }
+
+ Primitive3DContainer getLineJoinSegments(
+ sal_uInt32 nSegments,
+ const attribute::MaterialAttribute3D& rMaterial,
+ double fAngle,
+ double fMiterMinimumAngle,
+ basegfx::B2DLineJoin aLineJoin)
+ {
+ // nSegments is for whole circle, adapt to half circle
+ const sal_uInt32 nVerSeg(nSegments >> 1);
+ std::vector< BasePrimitive3D* > aResultVector;
+
+ if(nVerSeg)
+ {
+ if(basegfx::B2DLineJoin::Round == aLineJoin)
+ {
+ // calculate new horizontal segments
+ const sal_uInt32 nHorSeg(basegfx::fround((fAngle / (2 * M_PI)) * static_cast<double>(nSegments)));
+
+ if(nHorSeg)
+ {
+ // create half-sphere
+ const basegfx::B3DPolyPolygon aSphere(basegfx::utils::createUnitSphereFillPolyPolygon(nHorSeg, nVerSeg, true, M_PI_2, -M_PI_2, 0.0, fAngle));
+
+ for(sal_uInt32 a(0); a < aSphere.count(); a++)
+ {
+ const basegfx::B3DPolygon& aPartPolygon(aSphere.getB3DPolygon(a));
+ const basegfx::B3DPolyPolygon aPartPolyPolygon(aPartPolygon);
+ aResultVector.push_back(new PolyPolygonMaterialPrimitive3D(aPartPolyPolygon, rMaterial, false));
+ }
+ }
+ else
+ {
+ // fallback to bevel when there is not at least one segment hor and ver
+ aLineJoin = basegfx::B2DLineJoin::Bevel;
+ }
+ }
+
+ if (basegfx::B2DLineJoin::Bevel == aLineJoin ||
+ basegfx::B2DLineJoin::Miter == aLineJoin)
+ {
+ if(basegfx::B2DLineJoin::Miter == aLineJoin)
+ {
+ const double fMiterAngle(fAngle/2.0);
+
+ if(fMiterAngle < fMiterMinimumAngle)
+ {
+ // fallback to bevel when miter's angle is too small
+ aLineJoin = basegfx::B2DLineJoin::Bevel;
+ }
+ }
+
+ const double fInc(M_PI / static_cast<double>(nVerSeg));
+ const double fSin(sin(-fAngle));
+ const double fCos(cos(-fAngle));
+ const bool bMiter(basegfx::B2DLineJoin::Miter == aLineJoin);
+ const double fMiterSin(bMiter ? sin(-(fAngle/2.0)) : 0.0);
+ const double fMiterCos(bMiter ? cos(-(fAngle/2.0)) : 0.0);
+ double fPos(-M_PI_2);
+ basegfx::B3DPoint aPointOnXY, aPointRotY, aNextPointOnXY, aNextPointRotY;
+ basegfx::B3DPoint aCurrMiter, aNextMiter;
+ basegfx::B3DPolygon aNewPolygon, aMiterPolygon;
+
+ // close polygon
+ aNewPolygon.setClosed(true);
+ aMiterPolygon.setClosed(true);
+
+ for(sal_uInt32 a(0); a < nVerSeg; a++)
+ {
+ const bool bFirst(0 == a);
+ const bool bLast(a + 1 == nVerSeg);
+
+ if(bFirst || !bLast)
+ {
+ fPos += fInc;
+
+ aNextPointOnXY = basegfx::B3DPoint(
+ cos(fPos),
+ sin(fPos),
+ 0.0);
+
+ aNextPointRotY = basegfx::B3DPoint(
+ aNextPointOnXY.getX() * fCos,
+ aNextPointOnXY.getY(),
+ aNextPointOnXY.getX() * fSin);
+
+ if(bMiter)
+ {
+ aNextMiter = basegfx::B3DPoint(
+ aNextPointOnXY.getX(),
+ aNextPointOnXY.getY(),
+ fMiterSin * (aNextPointOnXY.getX() / fMiterCos));
+ }
+ }
+
+ if(bFirst)
+ {
+ aNewPolygon.clear();
+
+ if(bMiter)
+ {
+ aNewPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0));
+ aNewPolygon.append(aNextPointOnXY);
+ aNewPolygon.append(aNextMiter);
+
+ aMiterPolygon.clear();
+ aMiterPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0));
+ aMiterPolygon.append(aNextMiter);
+ aMiterPolygon.append(aNextPointRotY);
+ }
+ else
+ {
+ aNewPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0));
+ aNewPolygon.append(aNextPointOnXY);
+ aNewPolygon.append(aNextPointRotY);
+ }
+ }
+ else if(bLast)
+ {
+ aNewPolygon.clear();
+
+ if(bMiter)
+ {
+ aNewPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0));
+ aNewPolygon.append(aCurrMiter);
+ aNewPolygon.append(aPointOnXY);
+
+ aMiterPolygon.clear();
+ aMiterPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0));
+ aMiterPolygon.append(aPointRotY);
+ aMiterPolygon.append(aCurrMiter);
+ }
+ else
+ {
+ aNewPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0));
+ aNewPolygon.append(aPointRotY);
+ aNewPolygon.append(aPointOnXY);
+ }
+ }
+ else
+ {
+ aNewPolygon.clear();
+
+ if(bMiter)
+ {
+ aNewPolygon.append(aPointOnXY);
+ aNewPolygon.append(aNextPointOnXY);
+ aNewPolygon.append(aNextMiter);
+ aNewPolygon.append(aCurrMiter);
+
+ aMiterPolygon.clear();
+ aMiterPolygon.append(aCurrMiter);
+ aMiterPolygon.append(aNextMiter);
+ aMiterPolygon.append(aNextPointRotY);
+ aMiterPolygon.append(aPointRotY);
+ }
+ else
+ {
+ aNewPolygon.append(aPointRotY);
+ aNewPolygon.append(aPointOnXY);
+ aNewPolygon.append(aNextPointOnXY);
+ aNewPolygon.append(aNextPointRotY);
+ }
+ }
+
+ // set normals
+ for(sal_uInt32 b(0); b < aNewPolygon.count(); b++)
+ {
+ aNewPolygon.setNormal(b, basegfx::B3DVector(aNewPolygon.getB3DPoint(b)));
+ }
+
+ // create primitive
+ if(aNewPolygon.count())
+ {
+ const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon);
+ aResultVector.push_back(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, rMaterial, false));
+ }
+
+ if(bMiter && aMiterPolygon.count())
+ {
+ // set normals
+ for(sal_uInt32 c(0); c < aMiterPolygon.count(); c++)
+ {
+ aMiterPolygon.setNormal(c, basegfx::B3DVector(aMiterPolygon.getB3DPoint(c)));
+ }
+
+ // create primitive
+ const basegfx::B3DPolyPolygon aMiterPolyPolygon(aMiterPolygon);
+ aResultVector.push_back(new PolyPolygonMaterialPrimitive3D(aMiterPolyPolygon, rMaterial, false));
+ }
+
+ // prepare next step
+ if(bFirst || !bLast)
+ {
+ aPointOnXY = aNextPointOnXY;
+ aPointRotY = aNextPointRotY;
+
+ if(bMiter)
+ {
+ aCurrMiter = aNextMiter;
+ }
+ }
+ }
+ }
+ }
+
+ Primitive3DContainer aRetval(aResultVector.size());
+
+ for(size_t a(0); a < aResultVector.size(); a++)
+ {
+ aRetval[a] = Primitive3DReference(aResultVector[a]);
+ }
+
+ return aRetval;
+ }
+
+ basegfx::B3DHomMatrix getRotationFromVector(const basegfx::B3DVector& rVector)
+ {
+ // build transformation from unit vector to vector
+ basegfx::B3DHomMatrix aRetval;
+
+ // get applied rotations from angles in XY and in XZ (cartesian)
+ const double fRotInXY(atan2(rVector.getY(), rVector.getXZLength()));
+ const double fRotInXZ(atan2(-rVector.getZ(), rVector.getX()));
+
+ // apply rotations. Rot around Z needs to be done first, so apply in two steps
+ aRetval.rotate(0.0, 0.0, fRotInXY);
+ aRetval.rotate(0.0, fRotInXZ, 0.0);
+
+ return aRetval;
+ }
+ } // end of anonymous namespace
+
+
+using namespace com::sun::star;
+
+ Primitive3DContainer PolygonTubePrimitive3D::impCreate3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
+ {
+ const sal_uInt32 nPointCount(getB3DPolygon().count());
+ std::vector< BasePrimitive3D* > aResultVector;
+
+ if(nPointCount)
+ {
+ if(basegfx::fTools::more(getRadius(), 0.0))
+ {
+ const attribute::MaterialAttribute3D aMaterial(getBColor());
+ static const sal_uInt32 nSegments(8); // default for 3d line segments, for more quality just raise this value (in even steps)
+ const bool bClosed(getB3DPolygon().isClosed());
+ const bool bNoLineJoin(basegfx::B2DLineJoin::NONE == getLineJoin());
+ const sal_uInt32 nLoopCount(bClosed ? nPointCount : nPointCount - 1);
+ basegfx::B3DPoint aLast(getB3DPolygon().getB3DPoint(nPointCount - 1));
+ basegfx::B3DPoint aCurr(getB3DPolygon().getB3DPoint(0));
+
+ for(sal_uInt32 a(0); a < nLoopCount; a++)
+ {
+ // get next data
+ const basegfx::B3DPoint aNext(getB3DPolygon().getB3DPoint((a + 1) % nPointCount));
+ const basegfx::B3DVector aForw(aNext - aCurr);
+ const double fForwLen(aForw.getLength());
+
+ if(basegfx::fTools::more(fForwLen, 0.0))
+ {
+ // find out if linecap is active
+ const bool bFirst(!a);
+ const bool bLast(a + 1 == nLoopCount);
+ const bool bLineCapPossible(!bClosed && (bFirst || bLast));
+ const bool bLineCapRound(bLineCapPossible && css::drawing::LineCap_ROUND == getLineCap());
+ const bool bLineCapSquare(bLineCapPossible && css::drawing::LineCap_SQUARE == getLineCap());
+
+ // get rotation from vector, this describes rotation from (1, 0, 0) to aForw
+ basegfx::B3DHomMatrix aRotVector(getRotationFromVector(aForw));
+
+ // prepare transformations for tube and cap
+ basegfx::B3DHomMatrix aTubeTrans;
+ basegfx::B3DHomMatrix aCapTrans;
+
+ // cap gets radius size
+ aCapTrans.scale(getRadius(), getRadius(), getRadius());
+
+ if(bLineCapSquare)
+ {
+ // when square line cap just prolong line segment in X, maybe 2 x radius when
+ // first and last (simple line segment)
+ const double fExtraLength(bFirst && bLast ? getRadius() * 2.0 : getRadius());
+
+ aTubeTrans.scale(fForwLen + fExtraLength, getRadius(), getRadius());
+
+ if(bFirst)
+ {
+ // correct start positions for tube and cap when first and square prolonged
+ aTubeTrans.translate(-getRadius(), 0.0, 0.0);
+ aCapTrans.translate(-getRadius(), 0.0, 0.0);
+ }
+ }
+ else
+ {
+ // normal tube size
+ aTubeTrans.scale(fForwLen, getRadius(), getRadius());
+ }
+
+ // rotate and translate tube and cap
+ aTubeTrans *= aRotVector;
+ aTubeTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
+ aCapTrans *= aRotVector;
+ aCapTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
+
+ if(bNoLineJoin || (!bClosed && bFirst))
+ {
+ // line start edge, build transformed primitiveVector3D
+ Primitive3DContainer aSequence;
+
+ if(bLineCapRound && bFirst)
+ {
+ // LineCapRound used
+ aSequence = getLineCapRoundSegments(nSegments, aMaterial);
+ }
+ else
+ {
+ // simple closing cap
+ aSequence = getLineCapSegments(nSegments, aMaterial);
+ }
+
+ aResultVector.push_back(new TransformPrimitive3D(aCapTrans, aSequence));
+ }
+ else
+ {
+ const basegfx::B3DVector aBack(aCurr - aLast);
+ const double fCross(basegfx::cross(aBack, aForw).getLength());
+
+ if(!basegfx::fTools::equalZero(fCross))
+ {
+ // line connect non-parallel, aBack, aForw, use getLineJoin()
+ const double fAngle(acos(aBack.scalar(aForw) / (fForwLen * aBack.getLength()))); // 0.0 .. M_PI_2
+ Primitive3DContainer aNewList(
+ getLineJoinSegments(
+ nSegments,
+ aMaterial,
+ fAngle,
+ getMiterMinimumAngle(),
+ getLineJoin()));
+
+ // calculate transformation. First, get angle in YZ between nForw projected on (1, 0, 0) and nBack
+ basegfx::B3DHomMatrix aInvRotVector(aRotVector);
+ aInvRotVector.invert();
+ basegfx::B3DVector aTransBack(aInvRotVector * aBack);
+ const double fRotInYZ(atan2(aTransBack.getY(), aTransBack.getZ()));
+
+ // create trans by rotating unit sphere with angle 90 degrees around Y, then 180-fRot in X.
+ // Also apply usual scaling and translation
+ basegfx::B3DHomMatrix aSphereTrans;
+ aSphereTrans.rotate(0.0, M_PI_2, 0.0);
+ aSphereTrans.rotate(M_PI - fRotInYZ, 0.0, 0.0);
+ aSphereTrans *= aRotVector;
+ aSphereTrans.scale(getRadius(), getRadius(), getRadius());
+ aSphereTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
+
+ // line start edge, build transformed primitiveVector3D
+ aResultVector.push_back(
+ new TransformPrimitive3D(
+ aSphereTrans,
+ aNewList));
+ }
+ }
+
+ // create line segments, build transformed primitiveVector3D
+ aResultVector.push_back(
+ new TransformPrimitive3D(
+ aTubeTrans,
+ getLineTubeSegments(nSegments, aMaterial)));
+
+ if(bNoLineJoin || (!bClosed && bLast))
+ {
+ // line end edge
+ basegfx::B3DHomMatrix aBackCapTrans;
+
+ // Mirror (line end) and radius scale
+ aBackCapTrans.rotate(0.0, M_PI, 0.0);
+ aBackCapTrans.scale(getRadius(), getRadius(), getRadius());
+
+ if(bLineCapSquare && bLast)
+ {
+ // correct position when square and prolonged
+ aBackCapTrans.translate(fForwLen + getRadius(), 0.0, 0.0);
+ }
+ else
+ {
+ // standard position
+ aBackCapTrans.translate(fForwLen, 0.0, 0.0);
+ }
+
+ // rotate and translate to destination
+ aBackCapTrans *= aRotVector;
+ aBackCapTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
+
+ // get primitiveVector3D
+ Primitive3DContainer aSequence;
+
+ if(bLineCapRound && bLast)
+ {
+ // LineCapRound used
+ aSequence = getLineCapRoundSegments(nSegments, aMaterial);
+ }
+ else
+ {
+ // simple closing cap
+ aSequence = getLineCapSegments(nSegments, aMaterial);
+ }
+
+ aResultVector.push_back(
+ new TransformPrimitive3D(
+ aBackCapTrans,
+ aSequence));
+ }
+ }
+
+ // prepare next loop step
+ aLast = aCurr;
+ aCurr = aNext;
+ }
+ }
+ else
+ {
+ // create hairline
+ aResultVector.push_back(new PolygonHairlinePrimitive3D(getB3DPolygon(), getBColor()));
+ }
+ }
+
+ // prepare return value
+ Primitive3DContainer aRetval(aResultVector.size());
+
+ for(size_t a(0); a < aResultVector.size(); a++)
+ {
+ aRetval[a] = Primitive3DReference(aResultVector[a]);
+ }
+
+ return aRetval;
+ }
+
+ PolygonTubePrimitive3D::PolygonTubePrimitive3D(
+ const basegfx::B3DPolygon& rPolygon,
+ const basegfx::BColor& rBColor,
+ double fRadius, basegfx::B2DLineJoin aLineJoin,
+ css::drawing::LineCap aLineCap,
+ double fDegreeStepWidth,
+ double fMiterMinimumAngle)
+ : PolygonHairlinePrimitive3D(rPolygon, rBColor),
+ mfRadius(fRadius),
+ mfDegreeStepWidth(fDegreeStepWidth),
+ mfMiterMinimumAngle(fMiterMinimumAngle),
+ maLineJoin(aLineJoin),
+ maLineCap(aLineCap)
+ {
+ }
+
+ bool PolygonTubePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const
+ {
+ if(PolygonHairlinePrimitive3D::operator==(rPrimitive))
+ {
+ const PolygonTubePrimitive3D& rCompare = static_cast<const PolygonTubePrimitive3D&>(rPrimitive);
+
+ return (getRadius() == rCompare.getRadius()
+ && getDegreeStepWidth() == rCompare.getDegreeStepWidth()
+ && getMiterMinimumAngle() == rCompare.getMiterMinimumAngle()
+ && getLineJoin() == rCompare.getLineJoin()
+ && getLineCap() == rCompare.getLineCap());
+ }
+
+ return false;
+ }
+
+ Primitive3DContainer PolygonTubePrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const
+ {
+ ::osl::MutexGuard aGuard( m_aMutex );
+
+ if(getLast3DDecomposition().empty())
+ {
+ const Primitive3DContainer aNewSequence(impCreate3DDecomposition(rViewInformation));
+ const_cast< PolygonTubePrimitive3D* >(this)->maLast3DDecomposition = aNewSequence;
+ }
+
+ return getLast3DDecomposition();
+ }
+
+ // provide unique ID
+ ImplPrimitive3DIDBlock(PolygonTubePrimitive3D, PRIMITIVE3D_ID_POLYGONTUBEPRIMITIVE3D)
+
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */