/************************************************************************* * * $RCSfile: volume3d.cxx,v $ * * $Revision: 1.1.1.1 $ * * last change: $Author: hr $ $Date: 2000-09-18 17:01:15 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses * * - GNU Lesser General Public License Version 2.1 * - Sun Industry Standards Source License Version 1.1 * * Sun Microsystems Inc., October, 2000 * * GNU Lesser General Public License Version 2.1 * ============================================= * Copyright 2000 by Sun Microsystems, Inc. * 901 San Antonio Road, Palo Alto, CA 94303, USA * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software Foundation. * * This library 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 for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * * Sun Industry Standards Source License Version 1.1 * ================================================= * The contents of this file are subject to the Sun Industry Standards * Source License Version 1.1 (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.openoffice.org/license.html. * * Software provided under this License is provided on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. * See the License for the specific provisions governing your rights and * obligations concerning the Software. * * The Initial Developer of the Original Code is: Sun Microsystems, Inc. * * Copyright: 2000 by Sun Microsystems, Inc. * * All Rights Reserved. * * Contributor(s): _______________________________________ * * ************************************************************************/ #ifndef _VOLUME3D_HXX #include "volume3d.hxx" #endif #ifndef _POLY3D_HXX #include "poly3d.hxx" #endif #ifndef _SVX_MATRIX3D_HXX #include "matrix3d.hxx" #endif #ifndef _TOOLS_DEBUG_HXX #include #endif /************************************************************************* |* |* Konstruktor 1: | |* rPos: Zentrum oder minimale Koordinate links, unten, hinten |__ |* (abhaengig von bPosIsCenter) / |* \************************************************************************/ Volume3D::Volume3D(const Vector3D& rPos, const Vector3D& r3DSize, BOOL bPosIsCenter) : B3dVolume(rPos, r3DSize, bPosIsCenter) { } /************************************************************************* |* |* Konstruktor 2 - leeres Volumen, Werte als ungueltig markieren |* \************************************************************************/ Volume3D::Volume3D() : B3dVolume() { } /************************************************************************* |* |* Transformation des Volumens berechnen und als neues Volumen |* zurueckgeben |* \************************************************************************/ Volume3D Volume3D::GetTransformVolume(const Matrix4D& rTfMatrix) const { Volume3D aTfVol; if(IsValid()) { Vector3D aTfVec; Vol3DPointIterator aIter(*this, &rTfMatrix); while(aIter.Next(aTfVec)) aTfVol.Union(aTfVec); } return aTfVol; } /************************************************************************* |* |* Drahtgitter-Linien fuer das Volumen berechnen und in rPoly3D ablegen |* \************************************************************************/ void Volume3D::CreateWireframe(Polygon3D& rPoly3D, const Matrix4D* pTf) const { if(!IsValid()) return; Vector3D aDiff = aMaxVec - aMinVec; Polygon3D aVolPnts(8); UINT16 nZeroCnt(0); UINT16 nIdx = rPoly3D.GetPointCount(); // Alle Punkte holen Vol3DPointIterator aIter(*this, pTf); Vector3D aTfVec; UINT16 i(0); while(aIter.Next(aTfVec)) aVolPnts[i++] = aTfVec; // 0-Ausmasse des BoundVolumes zaehlen for(i = 0; i < 3; i++) if(aDiff[i] == 0) nZeroCnt++; // Die drei Ecksegemente des Volumens mit je drei Linien ausgeben; // falls Koordinatenanteile 0 sind, nicht alle Segmente verwenden, // um das gegenseitige Ausloeschen bei XOR-Ausgabe zu verhindern // 4 // | Dieses Segment immer // | // 0---1 // / // 3 // Die Liniensegmente eines Segments werden immer in der Reihenfolge // X-, Y- und dann Z-Richtung ausgegeben (gilt natuerlich nur fuer // untransformierte Koordinaten) rPoly3D[nIdx++] = aVolPnts[0]; if(nZeroCnt < 3) { // wenn keine Ausdehnung, dann nur den ersten Punkt einfuegen rPoly3D[nIdx++] = aVolPnts[1]; rPoly3D[nIdx++] = aVolPnts[0]; rPoly3D[nIdx++] = aVolPnts[4]; rPoly3D[nIdx++] = aVolPnts[0]; rPoly3D[nIdx++] = aVolPnts[3]; } if(nZeroCnt < 2) { if(nZeroCnt == 0 || aDiff.X() == 0) { // 4 // / // 7---6 // | // | // 3 rPoly3D[nIdx++] = aVolPnts[7]; rPoly3D[nIdx++] = aVolPnts[6]; rPoly3D[nIdx++] = aVolPnts[7]; rPoly3D[nIdx++] = aVolPnts[3]; rPoly3D[nIdx++] = aVolPnts[7]; rPoly3D[nIdx++] = aVolPnts[4]; } if(nZeroCnt == 0 || (aDiff.Y() == 0)) { // 6 // | 1 // |/ // 3---2 rPoly3D[nIdx++] = aVolPnts[2]; rPoly3D[nIdx++] = aVolPnts[3]; rPoly3D[nIdx++] = aVolPnts[2]; rPoly3D[nIdx++] = aVolPnts[6]; rPoly3D[nIdx++] = aVolPnts[2]; rPoly3D[nIdx++] = aVolPnts[1]; } if(nZeroCnt == 0 || (aDiff.Z() == 0)) { // 4---5 // /| // 6 | // 1 rPoly3D[nIdx++] = aVolPnts[5]; rPoly3D[nIdx++] = aVolPnts[4]; rPoly3D[nIdx++] = aVolPnts[5]; rPoly3D[nIdx++] = aVolPnts[1]; rPoly3D[nIdx++] = aVolPnts[5]; rPoly3D[nIdx++] = aVolPnts[6]; } } } /************************************************************************* |* |* Konstruktor des Point-Iterators |* \************************************************************************/ Vol3DPointIterator::Vol3DPointIterator(const Volume3D& rVol, const Matrix4D* pTf) : rVolume(rVol), pTransform(pTf), nIndex(0) { DBG_ASSERT(rVol.IsValid(), "Vol3DPointIterator-Aufruf mit ungueltigem Volume3D!"); a3DExtent = rVolume.aMaxVec - rVolume.aMinVec; } /************************************************************************* |* |* Gibt die einzelnen Punkte des (ggf. transformierten) Volumens zurueck |* |* 4---5 -> Reihenfolge der Punktausgabe (untransformiert) |* /| /| |* 7---6 | |* | 0-|-1 |* |/ |/ |* 3---2 |* \************************************************************************/ BOOL Vol3DPointIterator::Next(Vector3D& rVec) { if(nIndex > 7) { return FALSE; } else { rVec = rVolume.aMinVec; if(nIndex >= 4) rVec.Y() += a3DExtent.Y(); switch(nIndex) { case 6: case 2: rVec.Z() += a3DExtent.Z(); case 5: case 1: rVec.X() += a3DExtent.X(); break; case 7: case 3: rVec.Z() += a3DExtent.Z(); break; } nIndex++; if(pTransform) rVec *= *pTransform; return TRUE; } }