Click in the center of the tube (the cat) to select an image (sometimes it needs multiple clicks). Then press "Scan". If you're impatient, press "Results" to see the prerendered result image. This is a simulation of cross-sectional imaging, like its used in CT scan or MRI. The 3rd image is a cross-section of the abdomen, about on the height of the belly button. I know that there are better algorithms, but those used here are "mine". Wu Line based on https://scratch.mit.edu/projects/49447164 by @MasterOfArithmetic
