372 lines
12 KiB
C++
372 lines
12 KiB
C++
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/*************************************************************************
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*
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* $RCSfile: b3dtrans.hxx,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: hr $ $Date: 2000-09-18 16:30:08 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#ifndef _B3D_B3DTRANS_HXX
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#define _B3D_B3DTRANS_HXX
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#ifndef _B3D_HMATRIX_HXX
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#include "hmatrix.hxx"
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#endif
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// Zu verwendender DephRange des Z-Buffers
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#define ZBUFFER_DEPTH_RANGE (256.0 * 256.0 * 256.0)
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// Vorausdeklarationen
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class Base3D;
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class B3dVolume;
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/*************************************************************************
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|*
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|* Unterstuetzte Methoden, um das Seitenverhaeltnis einzuhalten
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|*
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\************************************************************************/
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enum Base3DRatio
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{
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Base3DRatioGrow = 1,
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Base3DRatioShrink,
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Base3DRatioMiddle
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};
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/*************************************************************************
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|*
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|* Typ der Projektion
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|*
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\************************************************************************/
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enum Base3DProjectionType
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{
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Base3DProjectionTypeParallel = 1,
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Base3DProjectionTypePerspective
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};
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/*************************************************************************
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|*
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|* Transformationen fuer alle 3D Ausgaben
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|*
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\************************************************************************/
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class B3dTransformationSet
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{
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private:
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// Object Matrix Object -> World
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Matrix4D aObjectTrans;
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Matrix4D aInvObjectTrans;
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// Orientation Matrix
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Matrix4D aOrientation;
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Matrix4D aInvOrientation;
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// Projection Matrix
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Matrix4D aProjection;
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Matrix4D aInvProjection;
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// Texture Matrices
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Matrix4D aTexture;
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// Speziell zum Umwandeln von Punkten Objekt -> Device
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Matrix4D aObjectToDevice;
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// Transponierte Inverse fuer Vectortransformationen
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Matrix4D aInvTransObjectToEye;
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// Transformation World->View
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Matrix4D aMatFromWorldToView;
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Matrix4D aInvMatFromWorldToView;
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// Parameters for ViewportTransformation
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Vector3D aScale;
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Vector3D aTranslate;
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// ViewPlane DeviceRectangle (vom Benutzer gesetzt)
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double fLeftBound;
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double fRightBound;
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double fBottomBound;
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double fTopBound;
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// Near and far clipping planes
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double fNearBound;
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double fFarBound;
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// Seitenverhaeltnis der 3D Abbildung (Y / X)
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// default ist 1:1 -> 1.0
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// Deaktivieren mit 0.0 als Wert
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double fRatio;
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// Der gesetzte Ausgabebereich (in logischen Koordinaten)
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// und der dazugehoerige sichtbare Bereich
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Rectangle aViewportRectangle;
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Rectangle aVisibleRectangle;
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// Die tatsaechlich von CalcViewport gesetzten Abmessungen
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// des sichtbaren Bereichs (in logischen Koordinaten)
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Rectangle aSetBound;
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// Methode zur Aufrechterhaltung des Seitenverhaeltnisses
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// default ist Base3DRatioGrow
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Base3DRatio eRatio;
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// Flags
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unsigned bPerspective : 1;
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unsigned bWorldToViewValid : 1;
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unsigned bInvTransObjectToEyeValid : 1;
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unsigned bObjectToDeviceValid : 1;
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unsigned bProjectionValid : 1;
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public:
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B3dTransformationSet();
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// Zurueck auf Standard
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void Reset();
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// ObjectTrans
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void SetObjectTrans(Matrix4D& rObj);
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const Matrix4D& GetObjectTrans() { return aObjectTrans; }
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const Matrix4D& GetInvObjectTrans() { return aInvObjectTrans; }
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// Orientation
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#ifndef ICC
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void SetOrientation(Vector3D& aVRP = Vector3D(0.0,0.0,1.0),
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Vector3D& aVPN = Vector3D(0.0,0.0,1.0),
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Vector3D& aVUP = Vector3D(0.0,1.0,0.0));
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#else
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void SetOrientation(Vector3D aVRP = Vector3D(0.0,0.0,1.0),
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Vector3D aVPN = Vector3D(0.0,0.0,1.0),
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Vector3D aVUP = Vector3D(0.0,1.0,0.0));
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#endif
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void SetOrientation(Matrix4D& mOrient);
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const Matrix4D& GetOrientation() { return aOrientation; }
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const Matrix4D& GetInvOrientation() { return aInvOrientation; }
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// Projection
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void SetProjection(Matrix4D& mProject);
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const Matrix4D& GetProjection();
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const Matrix4D& GetInvProjection();
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// Texture
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void SetTexture(Matrix4D& rTxt);
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const Matrix4D& GetTexture() { return aTexture; }
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// Seitenverhaeltnis und Modus zu dessen Aufrechterhaltung
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double GetRatio() { return fRatio; }
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void SetRatio(double fNew=1.0);
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Base3DRatio GetRatioMode() { return eRatio; }
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void SetRatioMode(Base3DRatio eNew=Base3DRatioGrow);
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// Parameter der ViewportTransformation
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void SetDeviceRectangle(double fL=-1.0, double fR=1.0, double fB=-1.0, double fT=1.0,
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BOOL bBroadCastChange=TRUE);
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void SetDeviceVolume(const B3dVolume& rVol, BOOL bBroadCastChange=TRUE);
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void GetDeviceRectangle(double &fL, double &fR, double& fB, double& fT);
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B3dVolume GetDeviceVolume();
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double GetDeviceRectangleWidth() const { return fRightBound - fLeftBound; }
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double GetDeviceRectangleHeight() const { return fTopBound - fBottomBound; }
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void SetFrontClippingPlane(double fF=0.0);
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double GetFrontClippingPlane() { return fNearBound; }
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void SetBackClippingPlane(double fB=1.0);
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double GetBackClippingPlane() { return fFarBound; }
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void SetPerspective(BOOL bNew);
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BOOL GetPerspective() { return bPerspective; }
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void SetViewportRectangle(Rectangle& rRect, Rectangle& rVisible);
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void SetViewportRectangle(Rectangle& rRect) { SetViewportRectangle(rRect, rRect); }
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const Rectangle& GetViewportRectangle() { return aViewportRectangle; }
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void CalcViewport();
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// Spezielle Matritzen anfordern
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Matrix4D GetMatFromObjectToView();
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// Transponierte Inverse fuer Vectortransformationen
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const Matrix4D& GetInvTransObjectToEye();
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// Speziell zum Umwandeln von Punkten Objekt -> Device
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const Matrix4D& GetObjectToDevice();
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// Speziell zum Umwandeln von Punkten World -> View
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const Matrix4D& GetMatFromWorldToView();
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const Matrix4D& GetInvMatFromWorldToView();
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// Bounds des Viewports lesen
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const Rectangle& GetLogicalViewportBounds();
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const Vector3D& GetScale();
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const Vector3D& GetTranslate();
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// Direkter Zugriff auf verschiedene Transformationen
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const Vector3D WorldToEyeCoor(const Vector3D& rVec);
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const Vector3D EyeToWorldCoor(const Vector3D& rVec);
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const Vector3D EyeToViewCoor(const Vector3D& rVec);
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const Vector3D ViewToEyeCoor(const Vector3D& rVec);
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const Vector3D WorldToViewCoor(const Vector3D& rVec);
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const Vector3D ViewToWorldCoor(const Vector3D& rVec);
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const Vector3D DeviceToViewCoor(const Vector3D& rVec);
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const Vector3D ViewToDeviceCoor(const Vector3D& rVec);
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const Vector3D ObjectToWorldCoor(const Vector3D& rVec);
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const Vector3D WorldToObjectCoor(const Vector3D& rVec);
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const Vector3D ObjectToViewCoor(const Vector3D& rVec);
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const Vector3D ViewToObjectCoor(const Vector3D& rVec);
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const Vector3D ObjectToEyeCoor(const Vector3D& rVec);
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const Vector3D EyeToObjectCoor(const Vector3D& rVec);
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const Vector3D DeviceToEyeCoor(const Vector3D& rVec);
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const Vector3D EyeToDeviceCoor(const Vector3D& rVec);
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const Vector3D InvTransObjectToEye(const Vector3D& rVec);
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const Vector3D TransTextureCoor(const Vector3D& rVec);
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protected:
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void PostSetObjectTrans();
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void PostSetOrientation();
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void PostSetProjection();
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void PostSetTexture();
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void PostSetViewport();
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void CalcMatObjectToDevice();
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void CalcMatFromWorldToView();
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void CalcMatInvTransObjectToEye();
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virtual void DeviceRectangleChange();
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};
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/*************************************************************************
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|*
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|* Viewport fuer B3D
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|*
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|* Verwendet wird hier ein vereinfachtes System, bei dem der abzubildende
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|* Punkt durch VRP repraesentiert wird
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|*
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\************************************************************************/
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class B3dViewport : public B3dTransformationSet
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{
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private:
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Vector3D aVRP; // View Reference Point
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Vector3D aVPN; // View Plane Normal
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Vector3D aVUV; // View Up Vector
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public:
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B3dViewport();
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void SetVRP(const Vector3D& rNewVRP);
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void SetVPN(const Vector3D& rNewVPN);
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void SetVUV(const Vector3D& rNewVUV);
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void SetViewportValues(
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const Vector3D& rNewVRP,
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const Vector3D& rNewVPN,
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const Vector3D& rNewVUV);
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const Vector3D& GetVRP() const { return aVRP; }
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const Vector3D& GetVPN() const { return aVPN; }
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const Vector3D& GetVUV() const { return aVUV; }
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protected:
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void CalcOrientation();
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};
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/*************************************************************************
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|*
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|* Kamera fuer B3D
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|*
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\************************************************************************/
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class B3dCamera : public B3dViewport
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{
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private:
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Vector3D aPosition;
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Vector3D aCorrectedPosition;
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Vector3D aLookAt;
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double fFocalLength;
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double fBankAngle;
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unsigned bUseFocalLength : 1;
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public:
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B3dCamera(const Vector3D& rPos = Vector3D(0.0, 0.0, 1.0),
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const Vector3D& rLkAt = Vector3D(0.0, 0.0, 0.0),
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double fFocLen = 35.0, double fBnkAng = 0.0,
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BOOL bUseFocLen = FALSE);
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// Positionen
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void SetPosition(const Vector3D& rNewPos);
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const Vector3D& GetPosition() const { return aPosition; }
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void SetLookAt(const Vector3D& rNewLookAt);
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const Vector3D& GetLookAt() const { return aLookAt; }
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void SetPositionAndLookAt(const Vector3D& rNewPos, const Vector3D& rNewLookAt);
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// Brennweite in mm
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void SetFocalLength(double fLen);
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double GetFocalLength() const { return fFocalLength; }
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// Neigung links/rechts
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void SetBankAngle(double fAngle);
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double GetBankAngle() const { return fBankAngle; }
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// FocalLength Flag
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void SetUseFocalLength(BOOL bNew);
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BOOL GetUseFocalLength() const { return (BOOL)bUseFocalLength; }
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protected:
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void CalcNewViewportValues();
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BOOL CalcFocalLength();
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virtual void DeviceRectangleChange();
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};
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#endif // _B3D_B3DTRANS_HXX
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