I'm trying to extract an especific value in a cell of the raster and after that i would like to convert it into a shapefile in a polygon format. I've tried to use the "RastertoPolygonCoercer" but failed. I'm recent user of FME so I don't get the feeling yet. Please any sugestion is welcome.
You can use these transformers to get cell values from a raster.
The PointOnRasterValueExtractor extracts the value of a cell specified by a point geometry. Output point will have cell value as its attribute.
The RasterCellCoercer transforms every cell into a point or a rectangle polygon. Resulting point or polygon will have cell value as its attribute or Z-value according to your parameter settings.
Takashi
post pic of workbench?
can confirm that the RasterCellCoercer works as advertised, just make sure that you feed it the right type of features. Use the Inspector or an inspection point to verify.
Just be aware that the RasterCellCoercer isn't very quick if you need to process huge amounts of of data...
David
That is much faster then first using RasateCellCoercer.
Also you can adress the location of the required cell by using a RasterPropertyExtractor, Rasterpallette generator,RasteSelector and Rasterpallettextractor (latter gives u a list of values of (selected) bands). Latter is ordered by a cellsequencenr.