LCOV - code coverage report
Current view: top level - svx/source/engine3d - camera3d.cxx (source / functions) Hit Total Coverage
Test: commit 0e63ca4fde4e446f346e35849c756a30ca294aab Lines: 90 100 90.0 %
Date: 2014-04-11 Functions: 8 9 88.9 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <svx/camera3d.hxx>
      21             : #include <tools/stream.hxx>
      22             : 
      23         344 : Camera3D::Camera3D(const basegfx::B3DPoint& rPos, const basegfx::B3DPoint& rLookAt,
      24             :                    double fFocalLen, double fBankAng) :
      25             :     aResetPos(rPos),
      26             :     aResetLookAt(rLookAt),
      27             :     fResetFocalLength(fFocalLen),
      28             :     fResetBankAngle(fBankAng),
      29             :     fBankAngle(fBankAng),
      30         344 :     bAutoAdjustProjection(true)
      31             : {
      32         344 :     SetVPD(0);
      33         344 :     SetPosition(rPos);
      34         344 :     SetLookAt(rLookAt);
      35         344 :     SetFocalLength(fFocalLen);
      36         344 : }
      37             : 
      38           0 : Camera3D::Camera3D()
      39             : {
      40           0 :     basegfx::B3DPoint aVector3D(0.0 ,0.0 ,1.0);
      41           0 :     Camera3D(aVector3D, basegfx::B3DPoint());
      42           0 : }
      43             : 
      44             : // Set default values for reset
      45             : 
      46         344 : void Camera3D::SetDefaults(const basegfx::B3DPoint& rPos, const basegfx::B3DPoint& rLookAt,
      47             :                             double fFocalLen, double fBankAng)
      48             : {
      49         344 :     aResetPos           = rPos;
      50         344 :     aResetLookAt        = rLookAt;
      51         344 :     fResetFocalLength   = fFocalLen;
      52         344 :     fResetBankAngle     = fBankAng;
      53         344 : }
      54             : 
      55             : // Set ViewWindow and adjust PRP
      56             : 
      57         688 : void Camera3D::SetViewWindow(double fX, double fY, double fW, double fH)
      58             : {
      59         688 :     Viewport3D::SetViewWindow(fX, fY, fW, fH);
      60         688 :     if ( bAutoAdjustProjection )
      61         344 :         SetFocalLength(fFocalLength);
      62         688 : }
      63             : 
      64         700 : void Camera3D::SetPosition(const basegfx::B3DPoint& rNewPos)
      65             : {
      66         700 :     if ( rNewPos != aPosition )
      67             :     {
      68         700 :         aPosition = rNewPos;
      69         700 :         SetVRP(aPosition);
      70         700 :         SetVPN(aPosition - aLookAt);
      71         700 :         SetBankAngle(fBankAngle);
      72             :     }
      73         700 : }
      74             : 
      75         344 : void Camera3D::SetLookAt(const basegfx::B3DPoint& rNewLookAt)
      76             : {
      77         344 :     if ( rNewLookAt != aLookAt )
      78             :     {
      79           0 :         aLookAt = rNewLookAt;
      80           0 :         SetVPN(aPosition - aLookAt);
      81           0 :         SetBankAngle(fBankAngle);
      82             :     }
      83         344 : }
      84             : 
      85         344 : void Camera3D::SetPosAndLookAt(const basegfx::B3DPoint& rNewPos,
      86             :                                const basegfx::B3DPoint& rNewLookAt)
      87             : {
      88         344 :     if ( rNewPos != aPosition || rNewLookAt != aLookAt )
      89             :     {
      90         344 :         aPosition = rNewPos;
      91         344 :         aLookAt = rNewLookAt;
      92             : 
      93         344 :         SetVRP(aPosition);
      94         344 :         SetVPN(aPosition - aLookAt);
      95         344 :         SetBankAngle(fBankAngle);
      96             :     }
      97         344 : }
      98             : 
      99        1044 : void Camera3D::SetBankAngle(double fAngle)
     100             : {
     101        1044 :     basegfx::B3DVector aDiff(aPosition - aLookAt);
     102        2088 :     basegfx::B3DVector aPrj(aDiff);
     103        1044 :     fBankAngle = fAngle;
     104             : 
     105        1044 :     if ( aDiff.getY() == 0 )
     106             :     {
     107        1044 :         aPrj.setY(-1.0);
     108             :     }
     109             :     else
     110             :     {   // aPrj = Projection from aDiff on the XZ-plane
     111           0 :         aPrj.setY(0.0);
     112             : 
     113           0 :         if ( aDiff.getY() < 0.0 )
     114             :         {
     115           0 :             aPrj = -aPrj;
     116             :         }
     117             :     }
     118             : 
     119             :     // Calculate from aDiff to uppwards pointing View-Up-Vector
     120             :     // duplicated line is intentional!
     121        1044 :     aPrj = aPrj.getPerpendicular(aDiff);
     122        1044 :     aPrj = aPrj.getPerpendicular(aDiff);
     123        1044 :     aDiff.normalize();
     124             : 
     125             :     // Rotate on Z axis, to rotate the BankAngle and back
     126        2088 :     basegfx::B3DHomMatrix aTf;
     127        1044 :     const double fV(sqrt(aDiff.getY() * aDiff.getY() + aDiff.getZ() * aDiff.getZ()));
     128             : 
     129        1044 :     if ( fV != 0.0 )
     130             :     {
     131        1044 :         basegfx::B3DHomMatrix aTemp;
     132        1044 :         const double fSin(aDiff.getY() / fV);
     133        1044 :         const double fCos(aDiff.getZ() / fV);
     134             : 
     135        1044 :         aTemp.set(1, 1, fCos);
     136        1044 :         aTemp.set(2, 2, fCos);
     137        1044 :         aTemp.set(2, 1, fSin);
     138        1044 :         aTemp.set(1, 2, -fSin);
     139             : 
     140        1044 :         aTf *= aTemp;
     141             :     }
     142             : 
     143             :     {
     144        1044 :         basegfx::B3DHomMatrix aTemp;
     145        1044 :         const double fSin(-aDiff.getX());
     146        1044 :         const double fCos(fV);
     147             : 
     148        1044 :         aTemp.set(0, 0, fCos);
     149        1044 :         aTemp.set(2, 2, fCos);
     150        1044 :         aTemp.set(0, 2, fSin);
     151        1044 :         aTemp.set(2, 0, -fSin);
     152             : 
     153        1044 :         aTf *= aTemp;
     154             :     }
     155             : 
     156        1044 :     aTf.rotate(0.0, 0.0, fBankAngle);
     157             : 
     158             :     {
     159        1044 :         basegfx::B3DHomMatrix aTemp;
     160        1044 :         const double fSin(aDiff.getX());
     161        1044 :         const double fCos(fV);
     162             : 
     163        1044 :         aTemp.set(0, 0, fCos);
     164        1044 :         aTemp.set(2, 2, fCos);
     165        1044 :         aTemp.set(0, 2, fSin);
     166        1044 :         aTemp.set(2, 0, -fSin);
     167             : 
     168        1044 :         aTf *= aTemp;
     169             :     }
     170             : 
     171        1044 :     if ( fV != 0.0 )
     172             :     {
     173        1044 :         basegfx::B3DHomMatrix aTemp;
     174        1044 :         const double fSin(-aDiff.getY() / fV);
     175        1044 :         const double fCos(aDiff.getZ() / fV);
     176             : 
     177        1044 :         aTemp.set(1, 1, fCos);
     178        1044 :         aTemp.set(2, 2, fCos);
     179        1044 :         aTemp.set(2, 1, fSin);
     180        1044 :         aTemp.set(1, 2, -fSin);
     181             : 
     182        1044 :         aTf *= aTemp;
     183             :     }
     184             : 
     185        2088 :     SetVUV(aTf * aPrj);
     186        1044 : }
     187             : 
     188        1376 : void Camera3D::SetFocalLength(double fLen)
     189             : {
     190        1376 :     if ( fLen < 5 )
     191         344 :         fLen = 5;
     192        1376 :     SetPRP(basegfx::B3DPoint(0.0, 0.0, fLen / 35.0 * aViewWin.W));
     193        1376 :     fFocalLength = fLen;
     194        1376 : }
     195             : 
     196             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

Generated by: LCOV version 1.10