Fig. 7From: Development and evaluation of a facile mesh-to-surface tool for customised wheelchair cushionsUsing the Grasshopper scan-to-CAD program at step 6, where a horizonal (Y-direction) line is drawn by the user in the Rhino modelling workspace across the center of the STL cushion. The red x’s seen projected from the outline to the STL cushion show that the horizontal line intersects the outline as needed for the Grasshopper programBack to article page