read_word16s :: FilePath -> IO RawData3D
read_word16s path = do
arr <- R.readArrayFromStorableFile path mri_shape
- now $ R.copyS arr
+ c <- R.copyP arr
+ now $ c
-values_to_colors :: (Shape sh) => (Values sh) -> (ColorData sh)
+--
+-- Instead of IO, we could get away with a generic monad 'm'
+-- here. However, /we/ only call this function from within IO.
+--
+values_to_colors :: (Shape sh) => (Values sh) -> IO (ColorData sh)
values_to_colors arr =
- R.computeS $ R.map (truncate_rgb . ramp_it) arr
+ R.computeUnboxedP $ R.map (truncate_rgb . ramp_it) arr
where
ramp_it :: Double -> (Double, Double, Double)
ramp_it x =
write_values_slice_to_bitmap :: Values2D -> FilePath -> IO ()
-write_values_slice_to_bitmap v3d path =
+write_values_slice_to_bitmap v3d path = do
+ values <- R.computeUnboxedP $ R.map fromIntegral arr_bracketed
+ colors <- values_to_colors $ values
R.writeImageToBMP path colors
where
arr_bracketed = bracket_array v3d
- colors = values_to_colors $ R.computeS $ R.map fromIntegral arr_bracketed