How can I create a triangular notch in a 2D semicircle domain?

[Zdmire]

Hello, I really appreciate how powerful and flexible Neper is. Thank you!. I'm trying to create a triangular notch in a 2D domain. The notch should start from the center of the domain's bottom edge, with a width of 1.5 units and a height of 22 units. I attempted to define this using Neper, but after visualization, I couldn't see the notch. Why might this be happening? @rquey

neper -T -domain "square(100,50):split(y)" -transform "cut(cube(0,0,0,1.5,22,1))" -n 100 -dim 2 -format tess,ori,geo -o grains_modes

neper -V grains_modes.tess -datacellcol id -imagesize 1200:1200 -print img