//---------------------------------------------------------
bool CPC_From_Shapes::On_Execute(void)
{
int zField, iField, nFields, *Fields;
CSG_PointCloud *pPoints;
CSG_Shapes *pShapes;
pShapes = Parameters("SHAPES") ->asShapes();
pPoints = Parameters("POINTS") ->asPointCloud();
zField = Parameters("ZFIELD") ->asInt();
if( !pShapes->is_Valid() )
{
return( false );
}
//-----------------------------------------------------
pPoints->Create();
pPoints->Set_Name(pShapes->Get_Name());
nFields = 0;
Fields = new int[pShapes->Get_Field_Count()];
if( Parameters("OUTPUT")->asInt() == 1 )
{
for(iField=0, nFields=0; iField<pShapes->Get_Field_Count(); iField++)
{
if( iField != zField && SG_Data_Type_Get_Size(pShapes->Get_Field_Type(iField)) > 0 )
{
Fields[nFields++] = iField;
pPoints->Add_Field(pShapes->Get_Field_Name(iField), pShapes->Get_Field_Type(iField));
}
}
}
//-----------------------------------------------------
for(int iShape=0; iShape<pShapes->Get_Count() && Set_Progress(iShape, pShapes->Get_Count()); iShape++)
{
CSG_Shape *pShape = pShapes->Get_Shape(iShape);
for(int iPart=0; iPart<pShape->Get_Part_Count(); iPart++)
{
for(int iPoint=0; iPoint<pShape->Get_Point_Count(iPart); iPoint++)
{
TSG_Point p = pShape->Get_Point(iPoint, iPart);
pPoints->Add_Point(p.x, p.y, zField < 0 ? pShape->Get_Z(iPoint, iPart) : pShape->asDouble(zField));
for(iField=0; iField<nFields; iField++)
{
pPoints->Set_Value(3 + iField, pShape->asDouble(Fields[iField]));
}
}
}
}
//-----------------------------------------------------
delete [] Fields;
return( pPoints->Get_Count() > 0 );
}
//---------------------------------------------------------
bool CLAS_Import::On_Execute(void)
{
CSG_Parameter_PointCloud_List *pPointsList;
bool bValidity;
CSG_Strings Files;
int RGBrange;
int cntInvalid = 0;
bValidity = Parameters("VALID")->asBool();
RGBrange = Parameters("RGB_RANGE")->asInt();
//-----------------------------------------------------
if( !Parameters("FILES")->asFilePath()->Get_FilePaths(Files) )
{
return( false );
}
//-----------------------------------------------------
pPointsList = Parameters("POINTS")->asPointCloudList();
pPointsList ->Del_Items();
for(int i=0; i<Files.Get_Count(); i++)
{
SG_UI_Msg_Add(CSG_String::Format(_TL("Parsing %s ... "), SG_File_Get_Name(Files[i], true).c_str()), true);
std::ifstream ifs;
ifs.open(Files[i].b_str(), std::ios::in | std::ios::binary);
if( !ifs )
{
SG_UI_Msg_Add_Error(CSG_String::Format(_TL("Unable to open LAS file!")));
continue;
}
//-----------------------------------------------------
// Check if LAS version is supported
liblas::LASReader *pReader;
try {
pReader = new liblas::LASReader(ifs);
}
catch(std::exception &e) {
SG_UI_Msg_Add_Error(CSG_String::Format(_TL("LAS header exception: %s"), e.what()));
ifs.close();
return( false );
}
catch(...) {
SG_UI_Msg_Add_Error(CSG_String::Format(_TL("Unknown LAS header exception!")));
ifs.close();
return( false );
}
delete (pReader);
ifs.clear();
//-----------------------------------------------------
liblas::LASReader reader(ifs);
liblas::LASHeader const& header = reader.GetHeader();
//-----------------------------------------------------
int nFields, iField[VAR_Count];
CSG_PointCloud *pPoints = SG_Create_PointCloud();
pPoints->Set_Name(SG_File_Get_Name(Files[i], false));
nFields = 3;
ADD_FIELD("T", VAR_T, _TL("gps-time") , SG_DATATYPE_Double); // SG_DATATYPE_Long
ADD_FIELD("i", VAR_i, _TL("intensity") , SG_DATATYPE_Float); // SG_DATATYPE_Word
ADD_FIELD("a", VAR_a, _TL("scan angle") , SG_DATATYPE_Float); // SG_DATATYPE_Byte
ADD_FIELD("r", VAR_r, _TL("number of the return") , SG_DATATYPE_Int);
ADD_FIELD("c", VAR_c, _TL("classification") , SG_DATATYPE_Int); // SG_DATATYPE_Byte
ADD_FIELD("u", VAR_u, _TL("user data") , SG_DATATYPE_Double); // SG_DATATYPE_Byte
ADD_FIELD("n", VAR_n, _TL("number of returns of given pulse") , SG_DATATYPE_Int);
ADD_FIELD("R", VAR_R, _TL("red channel color") , SG_DATATYPE_Int); // SG_DATATYPE_Word
ADD_FIELD("G", VAR_G, _TL("green channel color") , SG_DATATYPE_Int);
ADD_FIELD("B", VAR_B, _TL("blue channel color") , SG_DATATYPE_Int);
ADD_FIELD("e", VAR_e, _TL("edge of flight line flag") , SG_DATATYPE_Char);
ADD_FIELD("d", VAR_d, _TL("direction of scan flag") , SG_DATATYPE_Char);
ADD_FIELD("p", VAR_p, _TL("point source ID") , SG_DATATYPE_Int); // SG_DATATYPE_Word
ADD_FIELD("C", VAR_C, _TL("rgb color") , SG_DATATYPE_Int);
//-----------------------------------------------------
int iPoint = 0;
try {
while( reader.ReadNextPoint() )
{
if (iPoint % 100000)
SG_UI_Process_Set_Progress(iPoint, header.GetPointRecordsCount());
liblas::LASPoint const& point = reader.GetPoint();
if( bValidity )
{
if( !point.IsValid() )
{
cntInvalid++;
continue;
}
}
pPoints->Add_Point(point.GetX(), point.GetY(), point.GetZ());
if( iField[VAR_T] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_T], point.GetTime());
if( iField[VAR_i] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_i], point.GetIntensity());
if( iField[VAR_a] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_a], point.GetScanAngleRank());
if( iField[VAR_r] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_r], point.GetReturnNumber());
if( iField[VAR_c] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_c], point.GetClassification());
if( iField[VAR_u] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_u], point.GetUserData());
if( iField[VAR_n] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_n], point.GetNumberOfReturns());
if( iField[VAR_R] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_R], point.GetColor().GetRed());
if( iField[VAR_G] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_G], point.GetColor().GetGreen());
if( iField[VAR_B] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_B], point.GetColor().GetBlue());
if( iField[VAR_e] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_e], point.GetFlightLineEdge());
if( iField[VAR_d] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_d], point.GetScanDirection());
if( iField[VAR_p] > 0 ) pPoints->Set_Value(iPoint, iField[VAR_p], point.GetPointSourceID());
if( iField[VAR_C] > 0 )
{
double r, g, b;
r = point.GetColor().GetRed();
g = point.GetColor().GetGreen();
b = point.GetColor().GetBlue();
if (RGBrange == 0) // 16 bit
{
r = r / 65535 * 255;
g = g / 65535 * 255;
b = b / 65535 * 255;
}
pPoints->Set_Value(iPoint, iField[VAR_C], SG_GET_RGB(r, g, b));
}
iPoint++;
}
}
catch(std::exception &e) {
SG_UI_Msg_Add_Error(CSG_String::Format(_TL("LAS reader exception: %s"), e.what()));
ifs.close();
return( false );
}
catch(...) {
SG_UI_Msg_Add_Error(CSG_String::Format(_TL("Unknown LAS reader exception!")));
ifs.close();
return( false );
}
ifs.close();
pPointsList->Add_Item(pPoints);
DataObject_Add(pPoints);
//-----------------------------------------------------
CSG_Parameters sParms;
DataObject_Get_Parameters(pPoints, sParms);
if (sParms("METRIC_ATTRIB") && sParms("COLORS_TYPE") && sParms("METRIC_COLORS")
&& sParms("METRIC_ZRANGE") && sParms("DISPLAY_VALUE_AGGREGATE"))
{
sParms("DISPLAY_VALUE_AGGREGATE")->Set_Value(3); // highest z
sParms("COLORS_TYPE")->Set_Value(2); // graduated color
sParms("METRIC_COLORS")->asColors()->Set_Count(255); // number of colors
sParms("METRIC_ATTRIB")->Set_Value(2); // z attrib
sParms("METRIC_ZRANGE")->asRange()->Set_Range(pPoints->Get_Minimum(2),pPoints->Get_Maximum(2));
}
DataObject_Set_Parameters(pPoints, sParms);
SG_UI_Msg_Add(_TL("okay"), false);
}
//-----------------------------------------------------
if( bValidity && cntInvalid > 0 )
SG_UI_Msg_Add(CSG_String::Format(_TL("WARNING: %d invalid points skipped!"), cntInvalid), true);
return( true );
}
