[gdal-dev] regarding GDALDriver::Create

[Srikanth]

Dear All,

I am reading and writing raster images using GDAL. Below is the code which I
am using for writing a raster.
At times the code is working fine. But many a time , it is getting crashed
in the *GetRasterBand.* I have debugged the code several times and the
variables passed seems to be perfect. Any help in this is regard would be
appreciated.


bool GDALImageWriter::InitiliazeDataset(char* filename , int width , int
height , int numOfbands ,rasterDataType datatype){

   this->imageWidth = width ;
   this->imageHeight = height ;
   this->numOfBands = numOfbands ;
   this->datatpye = datatype ;
   poBand = new GDALRasterBand*[numOfbands] ;

   poDriver = GetGDALDriverManager()->GetDriverByName("GTiff");

   //papszOptions = CSLSetNameValue( papszOptions, "TILED", "YES" );
   //papszOptions = CSLSetNameValue( papszOptions, "COMPRESS", "PACKBITS" );

   poDataset=NULL;
   *poDataset = poDriver->Create(filename , width , height , numOfbands
,(GDALDataType)datatype,NULL);*

   for(int i=0 ; i < numOfbands ; i++)
     {
             poBand[i] = poDataset->GetRasterBand(i+1);
      }


   if(projectionStr != NULL)
       poDataset->SetProjection(projectionStr);
   if(adfGeoTransform != NULL)
       poDataset->SetGeoTransform(adfGeoTransform);

   if(poDataset == NULL)
       return false ;
   else
       return true ;
}



bool GDALImageWriter::writeData(int x , int y , int blockWidth , int
blockHeight ,uchar* data){

for(int i=0 ; i < numOfBands ; i++){

poBand[i]->RasterIO(GF_Write, x, y, blockWidth, blockHeight,data,
blockWidth, blockHeight,(GDALDataType)this->datatpye, 0, 0);

}

}

bool GDALImageWriter::closeDataset(){

if(poDataset!=NULL)

GDALClose(poDataset);

}










-- 
Regards,
Srikanth K.
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