BUG: Mantis-942: pixel convention consistency between GDAL and OTB

Code/BasicFilters/otbRasterizeVectorDataFilter.txx

@@ -174,8 +174,8 @@ RasterizeVectorDataFilter<TVectorData, TInputImage, TOutputImage>::GenerateData(
   InputIndexType  bufferIndexOrigin = bufferedRegion.GetIndex();
   InputPointType  bufferOrigin;
   this->GetOutput()->TransformIndexToPhysicalPoint(bufferIndexOrigin, bufferOrigin);
-  geoTransform[0] = bufferOrigin[0];
-  geoTransform[3] = bufferOrigin[1];
+  geoTransform[0] = bufferOrigin[0] - 0.5 * this->GetOutput()->GetSpacing()[0];
+  geoTransform[3] = bufferOrigin[1] - 0.5 * this->GetOutput()->GetSpacing()[1];
   geoTransform[1] = this->GetOutput()->GetSpacing()[0];
   geoTransform[5] = this->GetOutput()->GetSpacing()[1];
 

Code/Common/otbLabelImageToOGRDataSourceFilter.txx

@@ -186,8 +186,8 @@ LabelImageToOGRDataSourceFilter<TInputImage>
     IndexType  bufferIndexOrigin = this->GetInput()->GetBufferedRegion().GetIndex();
     OriginType  bufferOrigin;
     this->GetInput()->TransformIndexToPhysicalPoint(bufferIndexOrigin, bufferOrigin);
-    geoTransform[0] = bufferOrigin[0];
-    geoTransform[3] = bufferOrigin[1];
+    geoTransform[0] = bufferOrigin[0] - 0.5 * this->GetInput()->GetSpacing()[0];
+    geoTransform[3] = bufferOrigin[1] - 0.5 * this->GetInput()->GetSpacing()[1];
     geoTransform[1] = this->GetInput()->GetSpacing()[0];
     geoTransform[5] = this->GetInput()->GetSpacing()[1];
     // FIXME: Here component 1 and 4 should be replaced by the orientation parameters
@@ -256,8 +256,8 @@ LabelImageToOGRDataSourceFilter<TInputImage>
       // the spacing is unchanged, the origin is relative to the buffered region
       bufferIndexOrigin = this->GetInputMask()->GetBufferedRegion().GetIndex();
       this->GetInputMask()->TransformIndexToPhysicalPoint(bufferIndexOrigin, bufferOrigin);
-      geoTransform[0] = bufferOrigin[0];
-      geoTransform[3] = bufferOrigin[1];
+      geoTransform[0] = bufferOrigin[0] - 0.5 * this->GetInputMask()->GetSpacing()[0];
+      geoTransform[3] = bufferOrigin[1] - 0.5 * this->GetInputMask()->GetSpacing()[1];
       geoTransform[1] = this->GetInputMask()->GetSpacing()[0];
       geoTransform[5] = this->GetInputMask()->GetSpacing()[1];
       // FIXME: Here component 1 and 4 should be replaced by the orientation parameters