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authorsb <sb@openoffice.org>2010-02-25 13:53:42 +0100
committersb <sb@openoffice.org>2010-02-25 13:53:42 +0100
commit127c0f02d44c1ded4e452a6f40561775f5e43e4e (patch)
tree943f6953770996eab42c9b9bd847ece2bee87d0e /tools/source/generic/b3dtrans.cxx
parenteec332142dbfec6a5ab3d8cf4cf1a405cbd3e30c (diff)
parentf20bccf2958c070cfa1ec08b20f71bb0f70b8cd1 (diff)
sb111: merged in DEV300_m72
Diffstat (limited to 'tools/source/generic/b3dtrans.cxx')
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diff --git a/tools/source/generic/b3dtrans.cxx b/tools/source/generic/b3dtrans.cxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_tools.hxx"
+#include <tools/b3dtrans.hxx>
+#include <tools/debug.hxx>
+
+/*************************************************************************
+|*
+|* Transformationen fuer alle 3D Ausgaben
+|*
+\************************************************************************/
+
+B3dTransformationSet::B3dTransformationSet()
+{
+ Reset();
+}
+
+B3dTransformationSet::~B3dTransformationSet()
+{
+}
+
+void B3dTransformationSet::Orientation(basegfx::B3DHomMatrix& rTarget, basegfx::B3DPoint aVRP, basegfx::B3DVector aVPN, basegfx::B3DVector aVUP)
+{
+ rTarget.translate( -aVRP.getX(), -aVRP.getY(), -aVRP.getZ());
+ aVUP.normalize();
+ aVPN.normalize();
+ basegfx::B3DVector aRx(aVUP);
+ basegfx::B3DVector aRy(aVPN);
+ aRx = aRx.getPerpendicular(aRy);
+ aRx.normalize();
+ aRy = aRy.getPerpendicular(aRx);
+ aRy.normalize();
+ basegfx::B3DHomMatrix aTemp;
+ aTemp.set(0, 0, aRx.getX());
+ aTemp.set(0, 1, aRx.getY());
+ aTemp.set(0, 2, aRx.getZ());
+ aTemp.set(1, 0, aRy.getX());
+ aTemp.set(1, 1, aRy.getY());
+ aTemp.set(1, 2, aRy.getZ());
+ aTemp.set(2, 0, aVPN.getX());
+ aTemp.set(2, 1, aVPN.getY());
+ aTemp.set(2, 2, aVPN.getZ());
+ rTarget *= aTemp;
+}
+
+void B3dTransformationSet::Frustum(basegfx::B3DHomMatrix& rTarget, double fLeft, double fRight, double fBottom, double fTop, double fNear, double fFar)
+{
+ if(!(fNear > 0.0))
+ {
+ fNear = 0.001;
+ }
+ if(!(fFar > 0.0))
+ {
+ fFar = 1.0;
+ }
+ if(fNear == fFar)
+ {
+ fFar = fNear + 1.0;
+ }
+ if(fLeft == fRight)
+ {
+ fLeft -= 1.0;
+ fRight += 1.0;
+ }
+ if(fTop == fBottom)
+ {
+ fBottom -= 1.0;
+ fTop += 1.0;
+ }
+ basegfx::B3DHomMatrix aTemp;
+
+ aTemp.set(0, 0, 2.0 * fNear / (fRight - fLeft));
+ aTemp.set(1, 1, 2.0 * fNear / (fTop - fBottom));
+ aTemp.set(0, 2, (fRight + fLeft) / (fRight - fLeft));
+ aTemp.set(1, 2, (fTop + fBottom) / (fTop - fBottom));
+ aTemp.set(2, 2, -1.0 * ((fFar + fNear) / (fFar - fNear)));
+ aTemp.set(3, 2, -1.0);
+ aTemp.set(2, 3, -1.0 * ((2.0 * fFar * fNear) / (fFar - fNear)));
+ aTemp.set(3, 3, 0.0);
+
+ rTarget *= aTemp;
+}
+
+void B3dTransformationSet::Ortho(basegfx::B3DHomMatrix& rTarget, double fLeft, double fRight, double fBottom, double fTop, double fNear, double fFar)
+{
+ if(fNear == fFar)
+ {
+ DBG_ERROR("Near and far clipping plane in Ortho definition are identical");
+ fFar = fNear + 1.0;
+ }
+ if(fLeft == fRight)
+ {
+ DBG_ERROR("Left and right in Ortho definition are identical");
+ fLeft -= 1.0;
+ fRight += 1.0;
+ }
+ if(fTop == fBottom)
+ {
+ DBG_ERROR("Top and bottom in Ortho definition are identical");
+ fBottom -= 1.0;
+ fTop += 1.0;
+ }
+ basegfx::B3DHomMatrix aTemp;
+
+ aTemp.set(0, 0, 2.0 / (fRight - fLeft));
+ aTemp.set(1, 1, 2.0 / (fTop - fBottom));
+ aTemp.set(2, 2, -1.0 * (2.0 / (fFar - fNear)));
+ aTemp.set(0, 3, -1.0 * ((fRight + fLeft) / (fRight - fLeft)));
+ aTemp.set(1, 3, -1.0 * ((fTop + fBottom) / (fTop - fBottom)));
+ aTemp.set(2, 3, -1.0 * ((fFar + fNear) / (fFar - fNear)));
+
+ rTarget *= aTemp;
+}
+
+/*************************************************************************
+|*
+|* Reset der Werte
+|*
+\************************************************************************/
+
+void B3dTransformationSet::Reset()
+{
+ // Matritzen auf Einheitsmatritzen
+ maObjectTrans.identity();
+ PostSetObjectTrans();
+
+ Orientation(maOrientation);
+ PostSetOrientation();
+
+ maTexture.identity();
+
+ mfLeftBound = mfBottomBound = -1.0;
+ mfRightBound = mfTopBound = 1.0;
+ mfNearBound = 0.001;
+ mfFarBound = 1.001;
+
+ meRatio = Base3DRatioGrow;
+ mfRatio = 0.0;
+
+ maViewportRectangle = Rectangle(-1, -1, 2, 2);
+ maVisibleRectangle = maViewportRectangle;
+
+ mbPerspective = sal_True;
+
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+
+ CalcViewport();
+}
+
+/*************************************************************************
+|*
+|* Objekttransformation
+|*
+\************************************************************************/
+
+void B3dTransformationSet::SetObjectTrans(const basegfx::B3DHomMatrix& rObj)
+{
+ maObjectTrans = rObj;
+
+ mbObjectToDeviceValid = sal_False;
+ mbInvTransObjectToEyeValid = sal_False;
+
+ PostSetObjectTrans();
+}
+
+void B3dTransformationSet::PostSetObjectTrans()
+{
+ // Zuweisen und Inverse bestimmen
+ maInvObjectTrans = maObjectTrans;
+ maInvObjectTrans.invert();
+}
+
+/*************************************************************************
+|*
+|* Orientierungstransformation
+|*
+\************************************************************************/
+
+void B3dTransformationSet::SetOrientation( basegfx::B3DPoint aVRP, basegfx::B3DVector aVPN, basegfx::B3DVector aVUP)
+{
+ maOrientation.identity();
+ Orientation(maOrientation, aVRP, aVPN, aVUP);
+
+ mbInvTransObjectToEyeValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+
+ PostSetOrientation();
+}
+
+void B3dTransformationSet::SetOrientation(basegfx::B3DHomMatrix& mOrient)
+{
+ maOrientation = mOrient;
+
+ mbInvTransObjectToEyeValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+
+ PostSetOrientation();
+}
+
+void B3dTransformationSet::PostSetOrientation()
+{
+ // Zuweisen und Inverse bestimmen
+ maInvOrientation = maOrientation;
+ maInvOrientation.invert();
+}
+
+/*************************************************************************
+|*
+|* Projektionstransformation
+|*
+\************************************************************************/
+
+void B3dTransformationSet::SetProjection(const basegfx::B3DHomMatrix& mProject)
+{
+ maProjection = mProject;
+ PostSetProjection();
+}
+
+const basegfx::B3DHomMatrix& B3dTransformationSet::GetProjection()
+{
+ if(!mbProjectionValid)
+ CalcViewport();
+ return maProjection;
+}
+
+const basegfx::B3DHomMatrix& B3dTransformationSet::GetInvProjection()
+{
+ if(!mbProjectionValid)
+ CalcViewport();
+ return maInvProjection;
+}
+
+void B3dTransformationSet::PostSetProjection()
+{
+ // Zuweisen und Inverse bestimmen
+ maInvProjection = GetProjection();
+ maInvProjection.invert();
+
+ // Abhaengige Matritzen invalidieren
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+}
+
+/*************************************************************************
+|*
+|* Texturtransformation
+|*
+\************************************************************************/
+
+void B3dTransformationSet::SetTexture(const basegfx::B2DHomMatrix& rTxt)
+{
+ maTexture = rTxt;
+ PostSetTexture();
+}
+
+void B3dTransformationSet::PostSetTexture()
+{
+}
+
+/*************************************************************************
+|*
+|* Viewport-Transformation
+|*
+\************************************************************************/
+
+void B3dTransformationSet::CalcViewport()
+{
+ // Faktoren fuer die Projektion
+ double fLeft(mfLeftBound);
+ double fRight(mfRightBound);
+ double fBottom(mfBottomBound);
+ double fTop(mfTopBound);
+
+ // Soll das Seitenverhaeltnis Beachtung finden?
+ // Falls ja, Bereich der Projektion an Seitenverhaeltnis anpassen
+ if(GetRatio() != 0.0)
+ {
+ // Berechne aktuelles Seitenverhaeltnis der Bounds
+ double fBoundWidth = (double)(maViewportRectangle.GetWidth() + 1);
+ double fBoundHeight = (double)(maViewportRectangle.GetHeight() + 1);
+ double fActRatio = 1;
+ double fFactor;
+
+ if(fBoundWidth != 0.0)
+ fActRatio = fBoundHeight / fBoundWidth;
+ // FIXME else in this case has a lot of problems, should this return.
+
+ switch(meRatio)
+ {
+ case Base3DRatioShrink :
+ {
+ // Kleineren Teil vergroessern
+ if(fActRatio > mfRatio)
+ {
+ // X vergroessern
+ fFactor = 1.0 / fActRatio;
+ fRight *= fFactor;
+ fLeft *= fFactor;
+ }
+ else
+ {
+ // Y vergroessern
+ fFactor = fActRatio;
+ fTop *= fFactor;
+ fBottom *= fFactor;
+ }
+ break;
+ }
+ case Base3DRatioGrow :
+ {
+ // GroesserenTeil verkleinern
+ if(fActRatio > mfRatio)
+ {
+ // Y verkleinern
+ fFactor = fActRatio;
+ fTop *= fFactor;
+ fBottom *= fFactor;
+ }
+ else
+ {
+ // X verkleinern
+ fFactor = 1.0 / fActRatio;
+ fRight *= fFactor;
+ fLeft *= fFactor;
+ }
+ break;
+ }
+ case Base3DRatioMiddle :
+ {
+ // Mitteln
+ fFactor = ((1.0 / fActRatio) + 1.0) / 2.0;
+ fRight *= fFactor;
+ fLeft *= fFactor;
+ fFactor = (fActRatio + 1.0) / 2.0;
+ fTop *= fFactor;
+ fBottom *= fFactor;
+ break;
+ }
+ }
+ }
+
+ // Ueberschneiden sich Darstellungsflaeche und Objektflaeche?
+ maSetBound = maViewportRectangle;
+
+ // Mit den neuen Werten Projektion und ViewPort setzen
+ basegfx::B3DHomMatrix aNewProjection;
+
+ // #i36281#
+ // OpenGL needs a little more rough additional size to not let
+ // the front face vanish. Changed from SMALL_DVALUE to 0.000001,
+ // which is 1/10000th, comared with 1/tenth of a million from SMALL_DVALUE.
+ const double fDistPart((mfFarBound - mfNearBound) * 0.0001);
+
+ // Near, Far etwas grosszuegiger setzen, um falsches,
+ // zu kritisches clippen zu verhindern
+ if(mbPerspective)
+ {
+ Frustum(aNewProjection, fLeft, fRight, fBottom, fTop, mfNearBound - fDistPart, mfFarBound + fDistPart);
+ }
+ else
+ {
+ Ortho(aNewProjection, fLeft, fRight, fBottom, fTop, mfNearBound - fDistPart, mfFarBound + fDistPart);
+ }
+
+ // jetzt schon auf gueltig setzen um Endlosschleife zu vermeiden
+ mbProjectionValid = sal_True;
+
+ // Neue Projektion setzen
+ SetProjection(aNewProjection);
+
+ // fill parameters for ViewportTransformation
+ // Translation
+ maTranslate.setX((double)maSetBound.Left() + ((maSetBound.GetWidth() - 1L) / 2.0));
+ maTranslate.setY((double)maSetBound.Top() + ((maSetBound.GetHeight() - 1L) / 2.0));
+ maTranslate.setZ(ZBUFFER_DEPTH_RANGE / 2.0);
+
+ // Skalierung
+ maScale.setX((maSetBound.GetWidth() - 1L) / 2.0);
+ maScale.setY((maSetBound.GetHeight() - 1L) / -2.0);
+ maScale.setZ(ZBUFFER_DEPTH_RANGE / 2.0);
+
+ // Auf Veraenderung des ViewPorts reagieren
+ PostSetViewport();
+}
+
+void B3dTransformationSet::SetRatio(double fNew)
+{
+ if(mfRatio != fNew)
+ {
+ mfRatio = fNew;
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+ }
+}
+
+void B3dTransformationSet::SetRatioMode(Base3DRatio eNew)
+{
+ if(meRatio != eNew)
+ {
+ meRatio = eNew;
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+ }
+}
+
+void B3dTransformationSet::SetDeviceRectangle(double fL, double fR, double fB, double fT,
+ sal_Bool bBroadCastChange)
+{
+ if(fL != mfLeftBound || fR != mfRightBound || fB != mfBottomBound || fT != mfTopBound)
+ {
+ mfLeftBound = fL;
+ mfRightBound = fR;
+ mfBottomBound = fB;
+ mfTopBound = fT;
+
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+
+ // Aenderung bekanntmachen
+ if(bBroadCastChange)
+ DeviceRectangleChange();
+ }
+}
+
+void B3dTransformationSet::SetDeviceVolume(const basegfx::B3DRange& rVol, sal_Bool bBroadCastChange)
+{
+ SetDeviceRectangle(rVol.getMinX(), rVol.getMaxX(), rVol.getMinY(), rVol.getMaxY(), bBroadCastChange);
+ SetFrontClippingPlane(rVol.getMinZ());
+ SetBackClippingPlane(rVol.getMaxZ());
+}
+
+void B3dTransformationSet::DeviceRectangleChange()
+{
+}
+
+void B3dTransformationSet::GetDeviceRectangle(double &fL, double &fR, double& fB, double& fT)
+{
+ fL = mfLeftBound;
+ fR = mfRightBound;
+ fB = mfBottomBound;
+ fT = mfTopBound;
+
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+}
+
+basegfx::B3DRange B3dTransformationSet::GetDeviceVolume()
+{
+ basegfx::B3DRange aRet;
+
+ aRet.expand(basegfx::B3DTuple(mfLeftBound, mfBottomBound, mfNearBound));
+ aRet.expand(basegfx::B3DTuple(mfRightBound, mfTopBound, mfFarBound));
+
+ return aRet;
+}
+
+void B3dTransformationSet::SetFrontClippingPlane(double fF)
+{
+ if(mfNearBound != fF)
+ {
+ mfNearBound = fF;
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+ }
+}
+
+void B3dTransformationSet::SetBackClippingPlane(double fB)
+{
+ if(mfFarBound != fB)
+ {
+ mfFarBound = fB;
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+ }
+}
+
+void B3dTransformationSet::SetPerspective(sal_Bool bNew)
+{
+ if(mbPerspective != bNew)
+ {
+ mbPerspective = bNew;
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+ }
+}
+
+void B3dTransformationSet::SetViewportRectangle(Rectangle& rRect, Rectangle& rVisible)
+{
+ if(rRect != maViewportRectangle || rVisible != maVisibleRectangle)
+ {
+ maViewportRectangle = rRect;
+ maVisibleRectangle = rVisible;
+
+ mbProjectionValid = sal_False;
+ mbObjectToDeviceValid = sal_False;
+ mbWorldToViewValid = sal_False;
+ }
+}
+
+void B3dTransformationSet::PostSetViewport()
+{
+}
+
+const Rectangle& B3dTransformationSet::GetLogicalViewportBounds()
+{
+ if(!mbProjectionValid)
+ CalcViewport();
+ return maSetBound;
+}
+
+const basegfx::B3DVector& B3dTransformationSet::GetScale()
+{
+ if(!mbProjectionValid)
+ CalcViewport();
+ return maScale;
+}
+
+const basegfx::B3DVector& B3dTransformationSet::GetTranslate()
+{
+ if(!mbProjectionValid)
+ CalcViewport();
+ return maTranslate;
+}
+
+/*************************************************************************
+|*
+|* Hilfsmatrixberechnungsroutinen
+|*
+\************************************************************************/
+
+void B3dTransformationSet::CalcMatObjectToDevice()
+{
+ // ObjectToDevice berechnen (Orientation * Projection * Object)
+ maObjectToDevice = maObjectTrans;
+ maObjectToDevice *= maOrientation;
+ maObjectToDevice *= GetProjection();
+
+ // auf gueltig setzen
+ mbObjectToDeviceValid = sal_True;
+}
+
+const basegfx::B3DHomMatrix& B3dTransformationSet::GetObjectToDevice()
+{
+ if(!mbObjectToDeviceValid)
+ CalcMatObjectToDevice();
+ return maObjectToDevice;
+}
+
+void B3dTransformationSet::CalcMatInvTransObjectToEye()
+{
+ maInvTransObjectToEye = maObjectTrans;
+ maInvTransObjectToEye *= maOrientation;
+ maInvTransObjectToEye.invert();
+ maInvTransObjectToEye.transpose();
+
+ // eventuelle Translationen rausschmeissen, da diese
+ // Matrix nur zur Transformation von Vektoren gedacht ist
+ maInvTransObjectToEye.set(3, 0, 0.0);
+ maInvTransObjectToEye.set(3, 1, 0.0);
+ maInvTransObjectToEye.set(3, 2, 0.0);
+ maInvTransObjectToEye.set(3, 3, 1.0);
+
+ // auf gueltig setzen
+ mbInvTransObjectToEyeValid = sal_True;
+}
+
+const basegfx::B3DHomMatrix& B3dTransformationSet::GetInvTransObjectToEye()
+{
+ if(!mbInvTransObjectToEyeValid)
+ CalcMatInvTransObjectToEye();
+ return maInvTransObjectToEye;
+}
+
+basegfx::B3DHomMatrix B3dTransformationSet::GetMatFromObjectToView()
+{
+ basegfx::B3DHomMatrix aFromObjectToView = GetObjectToDevice();
+
+ const basegfx::B3DVector& rScale(GetScale());
+ aFromObjectToView.scale(rScale.getX(), rScale.getY(), rScale.getZ());
+ const basegfx::B3DVector& rTranslate(GetTranslate());
+ aFromObjectToView.translate(rTranslate.getX(), rTranslate.getY(), rTranslate.getZ());
+
+ return aFromObjectToView;
+}
+
+void B3dTransformationSet::CalcMatFromWorldToView()
+{
+ maMatFromWorldToView = maOrientation;
+ maMatFromWorldToView *= GetProjection();
+ const basegfx::B3DVector& rScale(GetScale());
+ maMatFromWorldToView.scale(rScale.getX(), rScale.getY(), rScale.getZ());
+ const basegfx::B3DVector& rTranslate(GetTranslate());
+ maMatFromWorldToView.translate(rTranslate.getX(), rTranslate.getY(), rTranslate.getZ());
+ maInvMatFromWorldToView = maMatFromWorldToView;
+ maInvMatFromWorldToView.invert();
+
+ // gueltig setzen
+ mbWorldToViewValid = sal_True;
+}
+
+const basegfx::B3DHomMatrix& B3dTransformationSet::GetMatFromWorldToView()
+{
+ if(!mbWorldToViewValid)
+ CalcMatFromWorldToView();
+ return maMatFromWorldToView;
+}
+
+const basegfx::B3DHomMatrix& B3dTransformationSet::GetInvMatFromWorldToView()
+{
+ if(!mbWorldToViewValid)
+ CalcMatFromWorldToView();
+ return maInvMatFromWorldToView;
+}
+
+/*************************************************************************
+|*
+|* Direkter Zugriff auf verschiedene Transformationen
+|*
+\************************************************************************/
+
+const basegfx::B3DPoint B3dTransformationSet::WorldToEyeCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetOrientation();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::EyeToWorldCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvOrientation();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::EyeToViewCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetProjection();
+ aVec *= GetScale();
+ aVec += GetTranslate();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ViewToEyeCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec -= GetTranslate();
+ aVec = aVec / GetScale();
+ aVec *= GetInvProjection();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::WorldToViewCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetMatFromWorldToView();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ViewToWorldCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvMatFromWorldToView();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::DeviceToViewCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetScale();
+ aVec += GetTranslate();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ViewToDeviceCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec -= GetTranslate();
+ aVec = aVec / GetScale();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ObjectToWorldCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetObjectTrans();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::WorldToObjectCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvObjectTrans();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ObjectToViewCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetObjectTrans();
+ aVec *= GetMatFromWorldToView();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ViewToObjectCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvMatFromWorldToView();
+ aVec *= GetInvObjectTrans();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::ObjectToEyeCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetObjectTrans();
+ aVec *= GetOrientation();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::EyeToObjectCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvOrientation();
+ aVec *= GetInvObjectTrans();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::DeviceToEyeCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvProjection();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::EyeToDeviceCoor(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetProjection();
+ return aVec;
+}
+
+const basegfx::B3DPoint B3dTransformationSet::InvTransObjectToEye(const basegfx::B3DPoint& rVec)
+{
+ basegfx::B3DPoint aVec(rVec);
+ aVec *= GetInvTransObjectToEye();
+ return aVec;
+}
+
+const basegfx::B2DPoint B3dTransformationSet::TransTextureCoor(const basegfx::B2DPoint& rVec)
+{
+ basegfx::B2DPoint aVec(rVec);
+ aVec *= GetTexture();
+ return aVec;
+}
+
+/*************************************************************************
+|*
+|* Konstruktor B3dViewport
+|*
+\************************************************************************/
+
+B3dViewport::B3dViewport()
+: B3dTransformationSet(),
+ aVRP(0, 0, 0),
+ aVPN(0, 0, 1),
+ aVUV(0, 1, 0)
+{
+ CalcOrientation();
+}
+
+B3dViewport::~B3dViewport()
+{
+}
+
+void B3dViewport::SetVRP(const basegfx::B3DPoint& rNewVRP)
+{
+ aVRP = rNewVRP;
+ CalcOrientation();
+}
+
+void B3dViewport::SetVPN(const basegfx::B3DVector& rNewVPN)
+{
+ aVPN = rNewVPN;
+ CalcOrientation();
+}
+
+void B3dViewport::SetVUV(const basegfx::B3DVector& rNewVUV)
+{
+ aVUV = rNewVUV;
+ CalcOrientation();
+}
+
+void B3dViewport::SetViewportValues(
+ const basegfx::B3DPoint& rNewVRP,
+ const basegfx::B3DVector& rNewVPN,
+ const basegfx::B3DVector& rNewVUV)
+{
+ aVRP = rNewVRP;
+ aVPN = rNewVPN;
+ aVUV = rNewVUV;
+ CalcOrientation();
+}
+
+void B3dViewport::CalcOrientation()
+{
+ SetOrientation(aVRP, aVPN, aVUV);
+}
+
+/*************************************************************************
+|*
+|* Konstruktor B3dViewport
+|*
+\************************************************************************/
+
+B3dCamera::B3dCamera(
+ const basegfx::B3DPoint& rPos, const basegfx::B3DVector& rLkAt,
+ double fFocLen, double fBnkAng, sal_Bool bUseFocLen)
+: B3dViewport(),
+ aPosition(rPos),
+ aCorrectedPosition(rPos),
+ aLookAt(rLkAt),
+ fFocalLength(fFocLen),
+ fBankAngle(fBnkAng),
+ bUseFocalLength(bUseFocLen)
+{
+ CalcNewViewportValues();
+}
+
+B3dCamera::~B3dCamera()
+{
+}
+
+void B3dCamera::SetPosition(const basegfx::B3DPoint& rNewPos)
+{
+ if(rNewPos != aPosition)
+ {
+ // Zuweisen
+ aCorrectedPosition = aPosition = rNewPos;
+
+ // Neuberechnung
+ CalcNewViewportValues();
+ }
+}
+
+void B3dCamera::SetLookAt(const basegfx::B3DVector& rNewLookAt)
+{
+ if(rNewLookAt != aLookAt)
+ {
+ // Zuweisen
+ aLookAt = rNewLookAt;
+
+ // Neuberechnung
+ CalcNewViewportValues();
+ }
+}
+
+void B3dCamera::SetPositionAndLookAt(const basegfx::B3DPoint& rNewPos, const basegfx::B3DVector& rNewLookAt)
+{
+ if(rNewPos != aPosition || rNewLookAt != aLookAt)
+ {
+ // Zuweisen
+ aPosition = rNewPos;
+ aLookAt = rNewLookAt;
+
+ // Neuberechnung
+ CalcNewViewportValues();
+ }
+}
+
+void B3dCamera::SetFocalLength(double fLen)
+{
+ if(fLen != fFocalLength)
+ {
+ // Zuweisen
+ if(fLen < 5.0)
+ fLen = 5.0;
+ fFocalLength = fLen;
+
+ // Neuberechnung
+ CalcNewViewportValues();
+ }
+}
+
+void B3dCamera::SetBankAngle(double fAngle)
+{
+ if(fAngle != fBankAngle)
+ {
+ // Zuweisen
+ fBankAngle = fAngle;
+
+ // Neuberechnung
+ CalcNewViewportValues();
+ }
+}
+
+void B3dCamera::SetUseFocalLength(sal_Bool bNew)
+{
+ if(bNew != (sal_Bool)bUseFocalLength)
+ {
+ // Zuweisen
+ bUseFocalLength = bNew;
+
+ // Neuberechnung
+ CalcNewViewportValues();
+ }
+}
+
+void B3dCamera::DeviceRectangleChange()
+{
+ // call parent
+ B3dViewport::DeviceRectangleChange();
+
+ // Auf Aenderung reagieren
+ CalcNewViewportValues();
+}
+
+void B3dCamera::CalcNewViewportValues()
+{
+ basegfx::B3DVector aViewVector(aPosition - aLookAt);
+ basegfx::B3DVector aNewVPN(aViewVector);
+
+ basegfx::B3DVector aNewVUV(0.0, 1.0, 0.0);
+ if(aNewVPN.getLength() < aNewVPN.getY())
+ aNewVUV.setX(0.5);
+
+ aNewVUV.normalize();
+ aNewVPN.normalize();
+
+ basegfx::B3DVector aNewToTheRight = aNewVPN;
+ aNewToTheRight = aNewToTheRight.getPerpendicular(aNewVUV);
+ aNewToTheRight.normalize();
+ aNewVUV = aNewToTheRight.getPerpendicular(aNewVPN);
+ aNewVUV.normalize();
+
+ SetViewportValues(aPosition, aNewVPN, aNewVUV);
+ if(CalcFocalLength())
+ SetViewportValues(aCorrectedPosition, aNewVPN, aNewVUV);
+
+ if(fBankAngle != 0.0)
+ {
+ basegfx::B3DHomMatrix aRotMat;
+ aRotMat.rotate(0.0, 0.0, fBankAngle);
+ basegfx::B3DVector aUp(0.0, 1.0, 0.0);
+ aUp *= aRotMat;
+ aUp = EyeToWorldCoor(aUp);
+ aUp.normalize();
+ SetVUV(aUp);
+ }
+}
+
+sal_Bool B3dCamera::CalcFocalLength()
+{
+ double fWidth = GetDeviceRectangleWidth();
+ sal_Bool bRetval = sal_False;
+
+ if(bUseFocalLength)
+ {
+ // Position aufgrund der FocalLength korrigieren
+ aCorrectedPosition = basegfx::B3DPoint(0.0, 0.0, fFocalLength * fWidth / 35.0);
+ aCorrectedPosition = EyeToWorldCoor(aCorrectedPosition);
+ bRetval = sal_True;
+ }
+ else
+ {
+ // FocalLength anhand der Position anpassen
+ basegfx::B3DPoint aOldPosition;
+ aOldPosition = WorldToEyeCoor(aOldPosition);
+ if(fWidth != 0.0)
+ fFocalLength = aOldPosition.getZ() / fWidth * 35.0;
+ if(fFocalLength < 5.0)
+ fFocalLength = 5.0;
+ }
+ return bRetval;
+}
+
+// eof