ARCH1291 - Visual Studies II FALL 2013 Assignment 7: 3X3 Pavilion ASSIGNMENT INTRODUCTION This assignment will continue from the work done in Assignment 1, which dealt primarily with Rhino primitives and Boolean operations. You will edit your Assignment 1 models to create a “pavilion module,” or a polysurface resembling a vaulted structure, and then populate this between two surfaces (a “floor” surface and a “ceiling” surface) in order to create a 3 module x 3 module pavilion with the use of Paneling Tools. ASSIGNMENT RESOURCES Rhino Primer

• http://openlab.citytech.cuny.edu/12101291coordination/rhino-primer/ Video Tutorial for Assignment 7

• http://openlab.citytech.cuny.edu/12101291coordination/assignment-7-3x3-pavilion/ ASSIGNMENT INSTRUCTIONS

1. Select a form from your Assignment 1 cube model that has the most dynamic interior space. You are encouraged to select as many forms as you’d like, should you deem them worth pursuing. Delete any “loose fragments” of the model (polysurfaces that are not contiguous with the main form).

2. Using the cutPlane and trim commands, trim your model so that it resembles a series of columns leading upward to a vaulted ceiling. Typically the trim will occur near the center of your cube model on an XY plane, though this depends entirely on your particular form.

a. Use the extractSrf command to extract and delete any trimmed surfaces from the original cube polysurface. You may find that your polysurface is now “inside-out” – if this is the case, use the dir command to flip the surface normal directions.

b. The module will need to have perfect bilateral symmetry for it to panel correclty.

3. The Paneling Tools plug-in for Rhino allows us to populate components or modules between two surfaces which will act as the “floor” surface and the “ceiling” surface for our pavilion designs.

a. Design a 30x30’ plane to act as the floor surface and a more freeform surface to act as the ceiling surface, but don’t make the ceiling surface too wildly deformed as your modules will already be adding a lot of geometric complexity to your pavilions.

b. Make sure that the surface UVW directions match between the floor and ceiling surfaces: i. Run the direction command to make sure that the surface normals are pointing in the same direction. ii. Use UV isocurve coloration in a wireframe viewport to match U and V directions relative to one

another. iii. One more thing – while in the direction command hover your mouse over each surface. You will see a

tiny coordinate system with a red and green axes corresponding to your UV directions – these coordinate systems must also match! If either axis is pointing the wrong way, click the UReverse and/or VReverse options to correct it.

4. To panelize the surface you will first need to create point grids. Go to Paneling Tools > Create Paneling Grid > Surface Domain and select your floor surface.

a. Repeat the command for your ceiling surface. b. To populate the point grids with your polysurface component, go to Paneling Tools > Paneling from Grid >

Panel Custom 3D. c. Enter 3 for both the U and the V grid count. d. When you are asked for bounding surfaces press Enter for none. e. When you are asked to select objects, select your pavilion module. f. Rhino will preview the adjacencies of the panelization – make sure that the modules’ boundaries are aligned

correctly. g. Join the result into a single polysurface and make sure that there are no unwanted naked edges which would

indicate a misalignment between modules from lack of bilateral symmetry.

GRADING To receive a grade, your Rhino (*.3dm) file must be submitted to your Dropbox folder and your laser cut model completed by the beginning of next class. Assignment 5 will be graded as follows:

1. File named properly and exhibits good layer management 10% 2. Correct manipulation of Assignment 1 polysurface into inhabitable pavilion module 40% 3. Floor and ceiling surfaces have matching UVW directions 10% 4. Ceiling surface is well-crafted freeform surface with controlled deformation 20% 5. Pavilion is 30x30’ and made up of 3 modules x 3 modules 10% 6. Pavilion module borders align correctly and pavilion can be joined into a single polysurface 10%