@thomthom said: @dahovey said: The ultimate thing I need to do is generate a PNG image file, being able to 'paint' each pixel. Already studied PNG documentation for what I need. That's simple enough. The compression seems to be the tough thing. Ditto - I was looking at it to read PNG data - easy up til the compression bit... A cross-platform Java .jar can read and write PNG file [or most other image formatf] pixel by pixel - that's how my ImageTrimmer and related tools work... My 'thumbnail' tools take the larger image and the JAR saves a PNG with the reduced size... ImageTrimmer reads the image's PNG pixels and if they are transparent it makes them white if they abut an 'edge' they become black, any other pixels become white - the bufferedimage is written to a new PNG; for the purposes of this tool a DAT file is also written containing 0/1 for white/black pixels this is read directly into SUp to make edges that are them 'simplified'... It's easy to see a converse operation where the RB writes a DAT file of pixel values and the JAR reads that and makes a PNG using those... I know it's clunky but until Ruby gets some decent image manipulation tools built in it works... If you'd like ideas on this please PM me...

Yes, gluing/cutting components can only cut holes on raw geometry, not on groups/components (but of course, they should be able to cut that holeon the raw geometry inside a group/component) as Shura says. Once a component lost its ability to cut a hole (or has been unglued), it cannot retain this ability any longer with native SU tools however. Now we have a nifty plugin, "Superglue" by Thomthom that will re-glue (and cut) these components. YouTube - Superglue Plugin for SketchUp by ThomThom [flash=480,385:ba83iujs]http://www.youtube.com/v/VS8-tjYTPXM?fs=1&hl=en_US[/flash:ba83iujs]