//---------------------------------------------------------
bool CCRS_Transform_Grid::Transform(CSG_Parameter_Grid_List *pSources, CSG_Parameter_Grid_List *pTargets, const CSG_Grid_System &Target_System)
{
if( !m_Projector.Set_Inverse(true) || !pTargets || !pSources || pSources->Get_Count() < 1 )
{
return( false );
}
//-----------------------------------------------------
CSG_Grid *pX, *pY;
if( !Parameters("CREATE_XY")->asBool() )
{
pX = pY = NULL;
}
else
{
Parameters("OUT_X")->Set_Value(pX = SG_Create_Grid(Target_System, SG_DATATYPE_Float));
pX->Assign_NoData();
pX->Set_Name(_TL("X-Coordinate"));
pX->Get_Projection().Create(m_Projector.Get_Target());
Parameters("OUT_Y")->Set_Value(pY = SG_Create_Grid(Target_System, SG_DATATYPE_Float));
pY->Assign_NoData();
pY->Set_Name(_TL("Y-Coordinate"));
pY->Get_Projection().Create(m_Projector.Get_Target());
}
//-----------------------------------------------------
bool bGeogCS_Adjust = m_Projector.Get_Source().Get_Type() == SG_PROJ_TYPE_CS_Geographic && pSources->asGrid(0)->Get_System().Get_XMax() > 180.0;
Set_Target_Area(pSources->asGrid(0)->Get_System(), Target_System);
//-----------------------------------------------------
int i, n = pTargets->Get_Count();
for(i=0; i<pSources->Get_Count(); i++)
{
CSG_Grid *pSource = pSources->asGrid(i);
CSG_Grid *pTarget = SG_Create_Grid(Target_System, m_Interpolation == 0 ? pSource->Get_Type() : SG_DATATYPE_Float);
if( pTarget )
{
pTarget->Set_NoData_Value_Range (pSource->Get_NoData_Value(), pSource->Get_NoData_hiValue());
pTarget->Set_ZFactor (pSource->Get_ZFactor());
pTarget->Set_Name (CSG_String::Format(SG_T("%s"), pSource->Get_Name()));
pTarget->Set_Unit (pSource->Get_Unit());
pTarget->Assign_NoData();
pTarget->Get_Projection().Create(m_Projector.Get_Target());
pTargets->Add_Item(pTarget);
}
}
//-------------------------------------------------
for(int y=0; y<Target_System.Get_NY() && Set_Progress(y, Target_System.Get_NY()); y++)
{
double yTarget = Target_System.Get_YMin() + y * Target_System.Get_Cellsize();
#pragma omp parallel for private(i)
for(int x=0; x<Target_System.Get_NX(); x++)
{
double z, ySource, xSource = Target_System.Get_XMin() + x * Target_System.Get_Cellsize();
if( is_In_Target_Area(x, y) && m_Projector.Get_Projection(xSource, ySource = yTarget) )
{
if( pX ) pX->Set_Value(x, y, xSource);
if( pY ) pY->Set_Value(x, y, ySource);
if( bGeogCS_Adjust && xSource < 0.0 )
{
xSource += 360.0;
}
for(i=0; i<pTargets->Get_Count(); i++)
{
if( pSources->asGrid(i)->Get_Value(xSource, ySource, z, m_Interpolation) )
{
pTargets->asGrid(n + i)->Set_Value(x, y, z);
}
}
}
}
}
//-----------------------------------------------------
m_Target_Area.Destroy();
return( true );
}
//---------------------------------------------------------
bool CGCS_Grid_Longitude_Range::On_Execute(void)
{
CSG_Parameter_Grid_List *pInput = Parameters("INPUT" )->asGridList();
CSG_Parameter_Grid_List *pOutput = Parameters("OUTPUT")->asGridList();
if( pInput->Get_Count() <= 0 )
{
Message_Dlg(_TL("nothing to do: no data in selection"));
return( false );
}
pOutput->Del_Items();
//-----------------------------------------------------
int xZero;
CSG_Grid_System Target;
//-----------------------------------------------------
if( Parameters("DIRECTION")->asInt() == 0 ) // 0 - 360 >> -180 - 180
{
if( Get_XMax() <= 180.0 )
{
Message_Add(_TL("Nothing to do. Raster is already within target range."));
return( true );
}
else if( Get_XMin() >= 180.0 )
{
xZero = 0;
Target.Assign(Get_Cellsize(), Get_XMin() - 360.0, Get_YMin(), Get_NX(), Get_NY());
}
else if( Get_XMax() - 360.0 < Get_XMin() - Get_Cellsize() )
{
Error_Set(_TL("Nothing to do be done. Raster splitting is not supported."));
return( false );
}
else
{
xZero = (int)(0.5 + 180.0 / Get_Cellsize());
Target.Assign(Get_Cellsize(), Get_XMin() - 180.0, Get_YMin(), Get_NX(), Get_NY());
}
}
//-----------------------------------------------------
else // -180 - 180 >> 0 - 360
{
if( Get_XMin() >= 0.0 )
{
Message_Add(_TL("Nothing to do. Raster is already within target range."));
return( true );
}
else if( Get_XMax() <= 0.0 )
{
xZero = 0;
Target.Assign(Get_Cellsize(), Get_XMin() + 360.0, Get_YMin(), Get_NX(), Get_NY());
}
else if( Get_XMin() + 360.0 > Get_XMax() + Get_Cellsize() )
{
Error_Set(_TL("Nothing to do be done. Raster splitting is not supported."));
return( false );
}
else
{
xZero = (int)(0.5 + 180.0 / Get_Cellsize());
Target.Assign(Get_Cellsize(), Get_XMin() - 180.0, Get_YMin(), Get_NX(), Get_NY());
}
}
//-----------------------------------------------------
for(int i=0; i<pInput->Get_Count() && Process_Get_Okay(); i++)
{
CSG_Grid *pIn = pInput->asGrid(i);
CSG_Grid *pOut = SG_Create_Grid(Target, pIn->Get_Type());
pOut->Set_Name(pIn->Get_Name());
pOut->Set_NoData_Value_Range(pIn->Get_NoData_Value(), pIn->Get_NoData_hiValue());
pOut->Set_ZFactor(pIn->Get_ZFactor());
pOutput->Add_Item(pOut);
for(int y=0; y<Get_NY() && Set_Progress(y); y++)
{
for(int x=0, xx=xZero; x<Get_NX(); x++, xx++)
{
if( xx >= Get_NX() )
{
xx = 0;
}
pOut->Set_Value(xx, y, pIn->asDouble(x, y));
}
}
}
//-----------------------------------------------------
return( true );
}