bool CProfileFromPoints::On_Execute(void){
CSG_Table* pTable;
CSG_Table* pProfileTable;
CSG_Table_Record* pRecord;
CSG_Grid* pGrid;
int iXField, iYField;
int i;
int x1,x2,y1,y2;
float fPartialDist;
float fDist = 0;
pGrid = Parameters("GRID")->asGrid();
pTable = Parameters("TABLE")->asTable();
pProfileTable = Parameters("RESULT")->asTable();
iXField = Parameters("X")->asInt();
iYField = Parameters("Y")->asInt();
pProfileTable->Create((CSG_Table*)NULL);
pProfileTable->Set_Name(_TL("Profile"));
pProfileTable->Add_Field(_TL("Distance"), SG_DATATYPE_Double);
pProfileTable->Add_Field("Z", SG_DATATYPE_Double);
for (i = 0; i < pTable->Get_Record_Count()-1; i++){
x1=(int)(0.5 + (pTable->Get_Record(i )->asDouble(iXField) - pGrid->Get_XMin()) / pGrid->Get_Cellsize());
x2=(int)(0.5 + (pTable->Get_Record(i+1)->asDouble(iXField) - pGrid->Get_XMin()) / pGrid->Get_Cellsize());
y1=(int)(0.5 + (pTable->Get_Record(i )->asDouble(iYField) - pGrid->Get_YMin()) / pGrid->Get_Cellsize());
y2=(int)(0.5 + (pTable->Get_Record(i+1)->asDouble(iYField) - pGrid->Get_YMin()) / pGrid->Get_Cellsize());
int x = x1, y = y1, D = 0, HX = x2 - x1, HY = y2 - y1,
c, M, xInc = 1, yInc = 1, iLastX = x1, iLastY = y1;
if (HX < 0) {
xInc = -1;
HX = -HX;
}//if
if (HY < 0) {
yInc = -1;
HY = -HY;
}//if
if (HY <= HX) {
c = 2 * HX;
M = 2 * HY;
for (;;) {
fPartialDist = (float)(M_GET_LENGTH(x-iLastX, y-iLastY) * pGrid->Get_Cellsize());
if (pGrid->is_InGrid(x,y) && fPartialDist){
fDist+=fPartialDist;
pRecord = pProfileTable->Add_Record();
pRecord->Set_Value(0, fDist);
pRecord->Set_Value(1, pGrid->asFloat(x,y));
}//if
iLastX = x;
iLastY = y;
if (x == x2) {
break;
}// if
x += xInc;
D += M;
if (D > HX) {
y += yInc;
D -= c;
}// if
}// for
}// if
else {
c = 2 * HY;
M = 2 * HX;
for (;;) {
fPartialDist = (float)(M_GET_LENGTH(x-iLastX, y-iLastY) * pGrid->Get_Cellsize());
if (pGrid->is_InGrid(x,y) && fPartialDist){
fDist+=fPartialDist;
pRecord = pProfileTable->Add_Record();
pRecord->Set_Value(0, fDist);
pRecord->Set_Value(1, pGrid->asFloat(x,y));
}//if
iLastX = x;
iLastY = y;
if (y == y2) {
break;
}// if
y += yInc;
D += M;
if (D > HY) {
x += xInc;
D -= c;
}// if
}// for
}// else
}//for
return true;
}// method
//---------------------------------------------------------
bool CSurfer_Export::On_Execute(void)
{
const char ID_BINARY[] = "DSBB";
FILE *Stream;
CSG_Grid *pGrid = Parameters("GRID")->asGrid();
CSG_String File = Parameters("FILE")->asString();
bool bNoData = Parameters("NODATA")->asBool();
switch( Parameters("FORMAT")->asInt() )
{
//-----------------------------------------------------
case 0: // Surfer 6 - Binary...
if( (Stream = fopen(File.b_str(), "wb")) != NULL )
{
short sValue;
double dValue;
fwrite(ID_BINARY, 4, sizeof(char), Stream);
sValue = (short)pGrid->Get_NX (); fwrite(&sValue, 1, sizeof(short ), Stream);
sValue = (short)pGrid->Get_NY (); fwrite(&sValue, 1, sizeof(short ), Stream);
dValue = pGrid->Get_XMin(); fwrite(&dValue, 1, sizeof(double), Stream);
dValue = pGrid->Get_XMax(); fwrite(&dValue, 1, sizeof(double), Stream);
dValue = pGrid->Get_YMin(); fwrite(&dValue, 1, sizeof(double), Stream);
dValue = pGrid->Get_YMax(); fwrite(&dValue, 1, sizeof(double), Stream);
dValue = pGrid->Get_Min (); fwrite(&dValue, 1, sizeof(double), Stream);
dValue = pGrid->Get_Max (); fwrite(&dValue, 1, sizeof(double), Stream);
//---------------------------------------------
float *fLine = (float *)SG_Malloc(pGrid->Get_NX() * sizeof(float));
for(int y=0; y<pGrid->Get_NY() && Set_Progress(y, pGrid->Get_NY()); y++)
{
for(int x=0; x<pGrid->Get_NX(); x++)
{
fLine[x] = bNoData && pGrid->is_NoData(x, y) ? NODATAVALUE : pGrid->asFloat(x, y);
}
fwrite(fLine, pGrid->Get_NX(), sizeof(float), Stream);
}
SG_Free(fLine);
fclose(Stream);
return( true );
}
break;
//-----------------------------------------------------
case 1: // Surfer - ASCII...
if( (Stream = fopen(File.b_str(), "w")) != NULL )
{
fprintf(Stream, "DSAA\n");
fprintf(Stream, "%d %d\n", pGrid->Get_NX (), pGrid->Get_NY ());
fprintf(Stream, "%f %f\n", pGrid->Get_XMin(), pGrid->Get_XMax());
fprintf(Stream, "%f %f\n", pGrid->Get_YMin(), pGrid->Get_YMax());
fprintf(Stream, "%f %f\n", pGrid->Get_Min (), pGrid->Get_Max ());
//---------------------------------------------
for(int y=0; y<pGrid->Get_NY() && Set_Progress(y, pGrid->Get_NY()); y++)
{
for(int x=0; x<pGrid->Get_NX(); x++)
{
fprintf(Stream, "%f ", bNoData && pGrid->is_NoData(x, y) ? NODATAVALUE : pGrid->asFloat(x, y));
}
fprintf(Stream, "\n");
}
fclose(Stream);
return( true );
}
break;
}
//-----------------------------------------------------
return( false );
}