This Application that create .dxf file as map of isolines of reinforcement of slab in Robot Structural Analysis 2015-2019

Autodesk forum

https://forums.autodesk.com/t5/robot-structural-analysis-forum/c-addin-for-robot-2017-exporting-map-of-slab-reinforcement/m-p/8517490/highlight/true#M73373

-If you don't run Robot Structural Analysis application can be tested by tiping "fake" in field for slab number, app will then load fake data from json file.