Robot working area

Hi everyone I’m trying to answer to this question
Taking into account the dimensions of the UR5e work area, model with Grasshopper the two work areas (maximum and recommended) of the robotic arm. Then give these two areas two different colors.
The picture one shows my grasshopper file, do you have an idea about the mistake that I have made ?
I’m trying to do like the picture 2. I uploaded the files in case you want to use them
Thank you


BIM880 - Canvas du (14.0 MB)
cercle.3dm (38.4 KB)
Grasshopper™ Plugin (4.0 MB)