RasterMosaicker

From fmepedia

RasterMosaicker is a Workbench Transformer.

This transformer mosaics multiple raster features into a single raster feature.

The transformer accepts a number of input raster features, each of which has one or more bands. All the raster features have the same number of selected bands, which, in turn, have the same number of selected palettes. Each selected band from each input raster feature will be removed, mosaicked together, and then appended to a single output raster feature. As a result, the output raster feature will also have the same number of selected bands and palettes.

The rasters may be organized into groups with the Group By parameter, with each group of rasters having its own output raster.

If Accumulate Attributes is set to Yes, then the attributes from the original features will be merged onto the output raster features.

If a Count Attribute is given, then an attribute with this name will be added to each output feature, containing the number of features that were combined to create the raster feature.

If Nodata Overwrites Real Data is set to Yes, any nodata overlapping the real data values will overwrite the real data values.

If the input rasters do not line up correctly or if they have different spacings, this transformer will use the selected Interpolation Type to snap and/or resample the input rasters. Nearest Neighbor is the fastest but produces the poorest image quality. Bicubic is the slowest but produces the best image quality. Bilinear provides a reasonable intermediate option.

The order of the input features determines the order of how the bands overlap in the output feature. A Sorter transformer may be used to enforce the order in which the features are processed.

This transformer accepts only raster features. There are some limitations that you need to be aware of when trying to mosaick raster features.

This transformer supports raster band and palette selection. The RasterSelector can be used to modify selection.