@takashi I have a number of numeric raster datasets with the value of NDVI or vegetation type. I have a polygon dataset with various properties and property types (public, road, private, etc). First I tried the standard raster and vector tools in FME but found that compared to other programs I have used FME is very slow with images. So I got sidetracked into point clouds and FME was on steroids. Then I kinda ran out of tools and knowledge and also realised that the final output would have to include vectors not just the analysis so I will probably bite the bullet and revert to slow and traditional. I would like to continue to see what I could do with point cloud though. Fail points were 1. converting the point cloud into vectors - I did see some workflows of buffering the points, dissolving etc but ran out of time to play and wasn't sure how quick these would be. A brief play with HullReplacer just gave me a big square. 2. Analysing the point cloud against vectors (assuming I didn't convert to poygons) - PointOnAreaOverlayer required I convert the point cloud to points (another time hit but still relatively quick) and 3. Getting out the analysis - despite the relatively good documentation on the PointOnAreaOverlayer I still struggled to work out the ListExploder workflow to actually view/publish a result.
Some comments on using point cloud, directions to explore and pointers would be great. Keep it simple, I'm not a power user by any means.