bool S3D_FILENAME_RESOLVER::SetProjectDir( const wxString& aProjDir, bool* flgChanged )
{
if( aProjDir.empty() )
return false;
wxFileName projdir( aProjDir, wxT( "" ) );
projdir.Normalize();
if( false == projdir.DirExists() )
return false;
m_curProjDir = projdir.GetPath();
if( flgChanged )
*flgChanged = false;
if( m_Paths.empty() )
{
S3D_ALIAS al;
al.m_alias = _( "(DEFAULT)" );
al.m_pathvar = _( "${PROJDIR}" );
al.m_pathexp = m_curProjDir;
al.m_description = _( "Current project directory" );
m_Paths.push_back( al );
m_NameMap.clear();
if( flgChanged )
*flgChanged = true;
}
else
{
if( m_Paths.front().m_pathexp.Cmp( m_curProjDir ) )
{
m_Paths.front().m_pathexp = m_curProjDir;
m_NameMap.clear();
if( flgChanged )
*flgChanged = true;
}
else
{
return true;
}
}
#ifdef DEBUG
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] changed project dir to ";
ostr << m_Paths.front().m_pathexp.ToUTF8();
wxLogTrace( MASK_3D_RESOLVER, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return true;
}
void
SoPerspectiveCameraManager::setZoomValueByDolly(float zoomvalue, SbBool COIN_UNUSED_ARG(limit))
{
if (!this->havezoombydollylimits) {
// without unitydistance, we don't know anything
return;
}
SoPerspectiveCamera * camera = this->getCastCamera();
float focaldistance = camera->focalDistance.getValue();
SbVec3f projdir(0.0f, 0.0f, 0.0f);
camera->orientation.getValue().multVec(SbVec3f(0.0f, 0.0f, -1.0f), projdir);
SbVec3f focalpoint = camera->position.getValue() + projdir * focaldistance;
float newdistance = this->unitydistance / zoomvalue;
camera->position.setValue(focalpoint - projdir * newdistance);
camera->focalDistance.setValue(newdistance);
}
/*
Performs a dolly and at the same time adjusts height to emulate how a perspective
camera would zoom in
*/
void
SoOrthoPerspectiveCameraManager::setZoomValueByDolly(float zoomvalue, SbBool limit)
{
if (!this->havezoombydollylimits) {
// don't have the necessary information
return;
}
static const float defaultangle = float(M_PI_4);
static const float defaultheight = sin(defaultangle) / cos(defaultangle);
// these are absolute, and wipes out existing non-dollied zoom. should fix
float newdistance = 0.0f;
if (zoomvalue < 0.0) {
zoomvalue = 0.0;
newdistance = 0.0;
} else {
newdistance = this->unitydistance / zoomvalue;
if (limit) {
if (newdistance < this->mindollydistance) {
newdistance = this->mindollydistance;
}
else if (newdistance > this->maxdollydistance) {
newdistance = this->maxdollydistance;
}
}
if (newdistance < 0.0) { newdistance = 0.0; }
}
float newheight = newdistance * defaultheight;
SoOrthographicCamera * camera = this->getCastCamera();
float focaldistance = camera->focalDistance.getValue();
SbVec3f projdir(0.0f, 0.0f, 0.0f);
camera->orientation.getValue().multVec(SbVec3f(0.0f, 0.0f, -1.0f), projdir);
SbVec3f focalpoint = camera->position.getValue() + projdir * focaldistance;
camera->position.setValue(focalpoint - projdir * newdistance);
camera->focalDistance.setValue(newdistance);
camera->height.setValue(newheight);
//printf("setting zoom:%g, distance:%g height=%g\n", zoomvalue, newdistance, newheight);
}
void
SoPerspectiveCameraManager::adjustZoomByDolly(float factor, SbBool limit)
{
SoPerspectiveCamera * camera = this->getCastCamera();
float focaldistance = camera->focalDistance.getValue();
float newdistance = focaldistance * (1.0f / factor);
if (this->havezoombydollylimits && limit) {
if (newdistance < this->mindollydistance) {
newdistance = this->mindollydistance;
}
else if (newdistance > this->maxdollydistance) {
newdistance = this->maxdollydistance;
}
}
SbVec3f projdir(0.0f, 0.0f, 0.0f);
camera->orientation.getValue().multVec(SbVec3f(0.0f, 0.0f, -1.0f), projdir);
SbVec3f focalpoint = camera->position.getValue() + projdir * focaldistance;
camera->position.setValue(focalpoint - projdir * newdistance);
camera->focalDistance.setValue(newdistance);
}