Fig. 6From: Development and evaluation of a facile mesh-to-surface tool for customised wheelchair cushionsUsing the Grasshopper scan-to-CAD program at step 5, where a vertical (X-direction) line is drawn by the user in the Rhino modelling workspace at the front end of a seat cushion or the bottom end of a back support. The red x’s seen projected from the hovering outline to the STL cushion show that the line intersects the outline as needed by the Grasshopper programBack to article page