Utah cAP | ReThinking BIM | Fall 2012
Jarret + Kelly
After re-evaluating our project we decided to take another look at meshes and anchor points in kangaroo. These new grasshopper definitions eliminate the need for surfaces after the initial loft is complete. The first of these two forms uses anchor point along the curves that form it. This is achieved by creating close closed loops around each curve and then evaluating which points are inside or outside the loops–effectively identifying if the points fall on the curve. In the second form the edge points of the mesh are determined and then randomly reduced using reduction and seed value sliders. Once a mesh has been formed and baked into its new funicular shape, rather than using a WeaverBird mesh offset–which only offsets in the z direction, we found the normal vector for each face and offset just the points in the direction of the normals. The four corners of each face are identified and arranged into sets to be sent to Revit with Chameleon. An eight point adaptive component receives the eight points and attractor point distances sent from grasshopper and creates the forms as shown. Rhino, Grasshopper (with Kangaroo, WeaverBird, MeshEdit, and Chameleon plugins), and Revit (with Chamelion Plug-in) were used to create these forms.