//---------------------------------------------------------
bool CGeoref_Grid::Get_Target_Extent(CSG_Rect &Extent, bool bEdge)
{
if( Parameters("METHOD")->asInt() == GEOREF_Triangulation ) // triangulation
{
return( m_Engine.Get_Reference_Extent(Extent) );
}
//-----------------------------------------------------
CSG_Grid *pGrid = Parameters("GRID")->asGrid();
Extent.m_rect.xMin = Extent.m_rect.yMin = 1.0;
Extent.m_rect.xMax = Extent.m_rect.yMax = 0.0;
//-----------------------------------------------------
if( bEdge )
{
for(int y=0; y<pGrid->Get_NY(); y++)
{
Add_Target_Extent(Extent, pGrid->Get_XMin(), pGrid->Get_System().Get_yGrid_to_World(y));
Add_Target_Extent(Extent, pGrid->Get_XMax(), pGrid->Get_System().Get_yGrid_to_World(y));
}
for(int x=0; x<pGrid->Get_NX(); x++)
{
Add_Target_Extent(Extent, pGrid->Get_System().Get_xGrid_to_World(x), pGrid->Get_YMin());
Add_Target_Extent(Extent, pGrid->Get_System().Get_xGrid_to_World(x), pGrid->Get_YMax());
}
}
//-----------------------------------------------------
else
{
for(int y=0; y<pGrid->Get_NY() && Set_Progress(y, pGrid->Get_NY()); y++)
{
for(int x=0; x<pGrid->Get_NX(); x++)
{
if( !pGrid->is_NoData(x, y) )
{
TSG_Point p = pGrid->Get_System().Get_Grid_to_World(x, y);
Add_Target_Extent(Extent, p.x, p.y);
}
}
}
}
return( is_Progress() && Extent.Get_XRange() > 0.0 && Extent.Get_YRange() > 0.0 );
}
//---------------------------------------------------------
bool CGrid_RGB_Composite::On_Execute(void)
{
double rMin, rRange, gMin, gRange, bMin, bRange, aMin, aRange;
//-----------------------------------------------------
CSG_Grid *pR = _Get_Grid(Parameters("R_GRID")->asGrid(), Parameters("R_METHOD")->asInt(), Parameters("R_RANGE")->asRange(), Parameters("R_PERCTL")->asRange(), Parameters("R_STDDEV")->asDouble(), rMin, rRange);
CSG_Grid *pG = _Get_Grid(Parameters("G_GRID")->asGrid(), Parameters("G_METHOD")->asInt(), Parameters("G_RANGE")->asRange(), Parameters("G_PERCTL")->asRange(), Parameters("G_STDDEV")->asDouble(), gMin, gRange);
CSG_Grid *pB = _Get_Grid(Parameters("B_GRID")->asGrid(), Parameters("B_METHOD")->asInt(), Parameters("B_RANGE")->asRange(), Parameters("B_PERCTL")->asRange(), Parameters("B_STDDEV")->asDouble(), bMin, bRange);
CSG_Grid *pA = _Get_Grid(Parameters("A_GRID")->asGrid(), Parameters("A_METHOD")->asInt(), Parameters("A_RANGE")->asRange(), Parameters("A_PERCTL")->asRange(), Parameters("A_STDDEV")->asDouble(), aMin, aRange);
//-----------------------------------------------------
CSG_Grid *pRGB = Parameters("RGB")->asGrid();
pRGB->Create(pRGB->Get_System(), SG_DATATYPE_Int);
pRGB->Set_Name(_TL("Composite"));
CSG_String s;
s += CSG_String(_TL("Red" )) + ": " + pR->Get_Name() + "\n";
s += CSG_String(_TL("Green")) + ": " + pG->Get_Name() + "\n";
s += CSG_String(_TL("Blue" )) + ": " + pB->Get_Name() + "\n";
if( pA )
{
s += CSG_String(_TL("Alpha")) + ": " + pA->Get_Name() + "\n";
}
pRGB->Set_Description(s);
DataObject_Set_Colors (pRGB, 100, SG_COLORS_BLACK_WHITE);
DataObject_Set_Parameter(pRGB, "COLORS_TYPE", 5); // Color Classification Type: RGB Coded Values
//-----------------------------------------------------
for(int y=0; y<Get_NY() && Set_Progress(y); y++)
{
#pragma omp parallel for
for(int x=0; x<Get_NX(); x++)
{
if( pR->is_NoData(x, y) || pG->is_NoData(x, y) || pB->is_NoData(x, y) || (pA && pA->is_NoData(x, y)) )
{
pRGB->Set_NoData(x, y);
}
else
{
int r = (int)(rRange * (pR->asDouble(x, y) - rMin)); if( r > 255 ) r = 255; else if( r < 0 ) r = 0;
int g = (int)(gRange * (pG->asDouble(x, y) - gMin)); if( g > 255 ) g = 255; else if( g < 0 ) g = 0;
int b = (int)(bRange * (pB->asDouble(x, y) - bMin)); if( b > 255 ) b = 255; else if( b < 0 ) b = 0;
if( pA )
{
int a = (int)(aRange * (pA->asDouble(x, y) - aMin)); if( a > 255 ) a = 255; else if( a < 0 ) a = 0;
pRGB->Set_Value(x, y, SG_GET_RGBA(r, g, b, a));
}
else
{
pRGB->Set_Value(x, y, SG_GET_RGB (r, g, b));
}
}
}
}
return( true );
}
//---------------------------------------------------------
bool CGrid_Import::On_Execute(void)
{
bool bTransform;
int x, y, yy, Method;
double ax, ay, dx, dy, rx, ry, xMin, yMin, Cellsize;
CSG_Colors Colors;
CSG_String fImage, fWorld, Name;
CSG_Grid *pImage;
CSG_File Stream;
wxImage Image;
wxImageHistogram Histogram;
//-----------------------------------------------------
fImage = Parameters("FILE") ->asString();
Method = Parameters("METHOD") ->asInt();
Name = SG_File_Get_Name(fImage, false);
//-----------------------------------------------------
wxImageHandler *pImgHandler = NULL;
if( !SG_UI_Get_Window_Main() )
{
CSG_String fName = SG_File_Get_Name(fImage, true);
if( SG_File_Cmp_Extension(fName, SG_T("jpg")) )
pImgHandler = new wxJPEGHandler;
else if( SG_File_Cmp_Extension(fName, SG_T("pcx")) )
pImgHandler = new wxPCXHandler;
else if( SG_File_Cmp_Extension(fName, SG_T("tif")) )
pImgHandler = new wxTIFFHandler;
else if( SG_File_Cmp_Extension(fName, SG_T("gif")) )
pImgHandler = new wxGIFHandler;
else if( SG_File_Cmp_Extension(fName, SG_T("pnm")) )
pImgHandler = new wxPNMHandler;
else if( SG_File_Cmp_Extension(fName, SG_T("xpm")) )
pImgHandler = new wxXPMHandler;
#ifdef _SAGA_MSW
else if( SG_File_Cmp_Extension(fName, SG_T("bmp")) )
pImgHandler = new wxBMPHandler;
#endif
else // if( SG_File_Cmp_Extension(fName, SG_T("png")) )
pImgHandler = new wxPNGHandler;
wxImage::AddHandler(pImgHandler);
}
if( !Image.LoadFile(fImage.c_str()) )
{
return( false );
}
//-----------------------------------------------------
if( SG_File_Cmp_Extension(fImage, SG_T("bmp")) )
{
fWorld = SG_File_Make_Path(NULL, fImage, SG_T("bpw"));
}
else if( SG_File_Cmp_Extension(fImage, SG_T("jpg")) )
{
fWorld = SG_File_Make_Path(NULL, fImage, SG_T("jgw"));
}
else if( SG_File_Cmp_Extension(fImage, SG_T("png")) )
{
fWorld = SG_File_Make_Path(NULL, fImage, SG_T("pgw"));
}
else if( SG_File_Cmp_Extension(fImage, SG_T("tif")) )
{
fWorld = SG_File_Make_Path(NULL, fImage, SG_T("tfw"));
}
else
{
fWorld = SG_File_Make_Path(NULL, fImage, SG_T("world"));
}
bTransform = false;
xMin = 0.0;
yMin = 0.0;
Cellsize = 1.0;
if( Stream.Open(fWorld, SG_FILE_R, false) && fscanf(Stream.Get_Stream(), "%lf %lf %lf %lf %lf %lf ", &dx, &ry, &rx, &dy, &ax, &ay) == 6 )
{
if( dx != -dy || rx != 0.0 || ry != 0.0 )
{
bTransform = true;
}
else
{
xMin = ax;
yMin = ay + dy * (Image.GetHeight() - 1);
Cellsize = dx;
}
}
//-----------------------------------------------------
// color look-up table...
if( Method == 0 && (yy = Image.ComputeHistogram(Histogram)) <= 256 )
{
Colors.Set_Count(yy);
for(wxImageHistogram::iterator i=Histogram.begin(); i!=Histogram.end(); ++i)
{
Colors.Set_Color(i->second.index, SG_GET_R(i->first), SG_GET_G(i->first), SG_GET_B(i->first));
}
pImage = SG_Create_Grid(yy <= 2 ? SG_DATATYPE_Bit : SG_DATATYPE_Byte, Image.GetWidth(), Image.GetHeight(), Cellsize, xMin, yMin);
for(y=0; y<pImage->Get_NY() && Set_Progress(y, pImage->Get_NY()); y++)
{
yy = bTransform ? y : pImage->Get_NY() - 1 - y;
for(x=0; x<pImage->Get_NX(); x++)
{
pImage->Set_Value(x, y, Histogram[SG_GET_RGB(Image.GetRed(x, yy), Image.GetGreen(x, yy), Image.GetBlue(x, yy))].index);
}
}
if( bTransform )
{
Set_Transformation(&pImage, ax, ay, dx, dy, rx, ry);
}
pImage->Set_Name(Name);
pImage->Get_Projection().Load(SG_File_Make_Path(NULL, fImage, SG_T("prj")));
Parameters("OUT_GRID")->Set_Value(pImage);
DataObject_Set_Colors(pImage, Colors);
DataObject_Update(pImage, 0, Colors.Get_Count() - 1);
}
//-----------------------------------------------------
else // true color...
{
pImage = SG_Create_Grid(SG_DATATYPE_Int, Image.GetWidth(), Image.GetHeight(), Cellsize, xMin, yMin);
pImage ->Set_Name(Name);
for(y=0; y<pImage->Get_NY() && Set_Progress(y, pImage->Get_NY()); y++)
{
yy = bTransform ? y : pImage->Get_NY() - 1 - y;
for(x=0; x<pImage->Get_NX(); x++)
{
pImage->Set_Value(x, y, SG_GET_RGB(Image.GetRed(x, yy), Image.GetGreen(x, yy), Image.GetBlue(x, yy)));
}
}
if( bTransform )
{
Set_Transformation(&pImage, ax, ay, dx, dy, rx, ry);
}
//-------------------------------------------------
if( Method != 1 ) // true color...
{
pImage->Get_Projection().Load(fImage, SG_PROJ_FMT_WKT);
pImage->Set_Name(Name);
pImage->Get_Projection().Load(SG_File_Make_Path(NULL, fImage, SG_T("prj")));
Parameters("OUT_GRID")->Set_Value(pImage);
DataObject_Set_Colors(pImage, 100, SG_COLORS_BLACK_WHITE);
DataObject_Set_Parameter(pImage, "COLORS_TYPE", 6); // Color Classification Type: RGB
}
//-------------------------------------------------
else // split channels...
{
CSG_Grid *pR, *pG, *pB;
pR = SG_Create_Grid(pImage->Get_System(), SG_DATATYPE_Byte);
pG = SG_Create_Grid(pImage->Get_System(), SG_DATATYPE_Byte);
pB = SG_Create_Grid(pImage->Get_System(), SG_DATATYPE_Byte);
for(y=0; y<pImage->Get_NY() && Set_Progress(y, pImage->Get_NY()); y++)
{
for(x=0; x<pImage->Get_NX(); x++)
{
pR->Set_Value(x, y, SG_GET_R(pImage->asInt(x, y)));
pG->Set_Value(x, y, SG_GET_G(pImage->asInt(x, y)));
pB->Set_Value(x, y, SG_GET_B(pImage->asInt(x, y)));
}
}
pR->Get_Projection().Load(fImage, SG_PROJ_FMT_WKT);
pG->Get_Projection().Load(fImage, SG_PROJ_FMT_WKT);
pB->Get_Projection().Load(fImage, SG_PROJ_FMT_WKT);
pR->Set_Name(CSG_String::Format(SG_T("%s [R]"), Name.c_str()));
pG->Set_Name(CSG_String::Format(SG_T("%s [G]"), Name.c_str()));
pB->Set_Name(CSG_String::Format(SG_T("%s [B]"), Name.c_str()));
pR->Get_Projection().Load(SG_File_Make_Path(NULL, fImage, SG_T("prj")));
pG->Get_Projection().Load(SG_File_Make_Path(NULL, fImage, SG_T("prj")));
pB->Get_Projection().Load(SG_File_Make_Path(NULL, fImage, SG_T("prj")));
Parameters("OUT_RED") ->Set_Value(pR);
Parameters("OUT_GREEN") ->Set_Value(pG);
Parameters("OUT_BLUE") ->Set_Value(pB);
DataObject_Set_Colors(pR, 100, SG_COLORS_BLACK_RED);
DataObject_Set_Colors(pG, 100, SG_COLORS_BLACK_GREEN);
DataObject_Set_Colors(pB, 100, SG_COLORS_BLACK_BLUE);
}
}
//-----------------------------------------------------
if( !SG_UI_Get_Window_Main() && pImgHandler != NULL)
{
wxImage::RemoveHandler(pImgHandler->GetName());
}
//-----------------------------------------------------
return( true );
}
//---------------------------------------------------------
bool CGridding_Spline_MBA::BA_Get_Phi(CSG_Grid &Phi)
{
int iPoint, _x, _y, ix, iy;
double x, y, z, dx, dy, wxy, wy, SW2, W[4][4];
CSG_Grid Delta;
//-----------------------------------------------------
Phi .Assign(0.0);
Delta .Create(Phi.Get_System());
//-----------------------------------------------------
for(iPoint=0; iPoint<m_Points.Get_Count() && Set_Progress(iPoint, m_Points.Get_Count()); iPoint++)
{
x = (m_Points[iPoint].x - Phi.Get_XMin()) / Phi.Get_Cellsize();
y = (m_Points[iPoint].y - Phi.Get_YMin()) / Phi.Get_Cellsize();
z = m_Points[iPoint].z;
if( (_x = (int)x) >= 0 && _x < Phi.Get_NX() - 3
&& (_y = (int)y) >= 0 && _y < Phi.Get_NY() - 3 )
{
dx = x - _x;
dy = y - _y;
for(iy=0, SW2=0.0; iy<4; iy++) // compute W[k,l] and Sum[a=0-3, b=0-3](W²[a,b])
{
wy = BA_Get_B(iy, dy);
for(ix=0; ix<4; ix++)
{
wxy = W[iy][ix] = wy * BA_Get_B(ix, dx);
SW2 += wxy*wxy;
}
}
for(iy=0; iy<4; iy++)
{
for(ix=0; ix<4; ix++)
{
wxy = W[iy][ix];
Delta.Add_Value(_x + ix, _y + iy, wxy*wxy * ((wxy * z) / SW2)); // Numerator
Phi .Add_Value(_x + ix, _y + iy, wxy*wxy); // Denominator
}
}
}
}
//-----------------------------------------------------
for(iy=0; iy<Phi.Get_NY(); iy++)
{
for(ix=0; ix<Phi.Get_NX(); ix++)
{
if( (z = Phi.asDouble(ix, iy)) != 0.0 )
{
Phi.Set_Value(ix, iy, Delta.asDouble(ix, iy) / z);
}
}
}
//-----------------------------------------------------
return( true );
}
//---------------------------------------------------------
CSG_Shape * CWatersheds_ext::Get_Basin(CSG_Grid *pBasins, CSG_Shapes *pPolygons)
{
int x, y, nEdges, Basin_ID;
CSG_Grid Edge;
CSG_Shape *pPolygon = NULL;
Basin_ID = 1 + pPolygons->Get_Count();
//-----------------------------------------------------
Edge.Create(SG_DATATYPE_Char, 2 * Get_NX() + 1, 2 * Get_NY() + 1, 0.5 * Get_Cellsize(), Get_XMin() - 0.5 * Get_Cellsize(), Get_YMin() - 0.5 * Get_Cellsize());
Edge.Set_NoData_Value(0);
for(y=0, nEdges=0; y<Get_NY() && Process_Get_Okay(); y++)
{
for(x=0; x<Get_NX(); x++)
{
if( pBasins->asInt(x, y) == Basin_ID )
{
for(int i=0; i<8; i+=2)
{
int ix = Get_xTo(i, x);
int iy = Get_yTo(i, y);
if( !is_InGrid(ix, iy) || pBasins->asInt(ix, iy) != Basin_ID )
{
ix = 1 + 2 * x;
iy = 1 + 2 * y;
Edge.Set_Value( ix, iy , 1);
Edge.Set_Value(Get_xTo(i , ix), Get_yTo(i , iy), -1);
Edge.Set_Value(Get_xTo(i - 1, ix), Get_yTo(i - 1, iy), -1);
nEdges++;
}
}
}
}
}
//-----------------------------------------------------
if( nEdges > 0 )
{
for(int yEdge=0; yEdge<Edge.Get_NY(); yEdge++) for(int xEdge=0; xEdge<Edge.Get_NX(); xEdge++)
{
int i = 4;
if( Edge.asInt(xEdge, yEdge) == 1 && Edge.asInt(Get_xTo(i, xEdge), Get_yTo(i, yEdge)) == -1 )
{
if( pPolygon == NULL )
{
pPolygon = pPolygons->Add_Shape();
}
int iPart = pPolygon->Get_Part_Count();
int xFirst = x = Get_xTo(i, xEdge);
int yFirst = y = Get_yTo(i, yEdge);
i = i + 2;
pPolygon ->Add_Point(Edge.Get_System().Get_Grid_to_World(x, y), iPart);
do
{
int ix = Get_xTo(i + 2, x);
int iy = Get_yTo(i + 2, y);
if( Edge.is_InGrid(ix, iy) && Edge.asInt(ix, iy) == -1 ) // go right ?
{
pPolygon->Add_Point(Edge.Get_System().Get_Grid_to_World(x, y), iPart);
i = (i + 2) % 8;
}
else
{
if( Edge.asInt(ix, iy) == 1 )
{
Edge.Set_NoData(ix, iy); // erase class id in right cells
}
ix = Get_xTo(i, x);
iy = Get_yTo(i, y);
if( Edge.is_InGrid(ix, iy) && Edge.asInt(ix, iy) == -1 ) // go ahead ?
{
// nop
}
else
{
ix = Get_xTo(i + 6, x);
iy = Get_yTo(i + 6, y);
if( Edge.is_InGrid(ix, iy) && Edge.asInt(ix, iy) == -1 ) // go left ?
{
pPolygon->Add_Point(Edge.Get_System().Get_Grid_to_World(x, y), iPart);
i = (i + 6) % 8;
}
else
{
return( false );
}
}
}
x = ix;
y = iy;
}
while( x != xFirst || y != yFirst );
pPolygon->Add_Point(Edge.Get_System().Get_Grid_to_World(x, y), iPart);
}
}
}
//-----------------------------------------------------
return( pPolygon );
}
