media + modeling iii

SPATIAL MECHANISMS

FALL 2021 | M+M III | PROF. KEITH KASEMAN

Derived from a single point, this parametric spatial mechanism utilizes a cube and three spheres to create a variety of geometric constructs. The Grasshopper definition incorporates numerous modes of input, various relational hierarchies, and data flow logics- such as if-then conditions- to produce unique spatial domains. The cube acts as a boundary condition and the intersection of a sphere with any face of the cube triggers a unique output on the face of the cube. When the spheres do not intersect with the cube, points along the surface of each sphere create a network of nodes from which lines originate to create volumetric cells between the spheres and the cube. When the spheres intersect with cube, these cells disappear and a network of lines is constructed from the same surface points using a Delaunay triangulation computation. As the spheres move in space, the distance between these points change and, thus, change the network of lines.

line length < 7.5 cm

line length > 7.5 cm

volumetric voronoi diagram changes with relationship to sphere size and location

intersection with west and/or south borders triggers planar voronoi diagram scaled in relationship to distance from center point of sphere_03

intersection of sphere_02 with east border triggers contouring and division of lines shown as points

A

B C

A FLEXIBLE PAVILION

FALL 2021 | M+M III | PROF. KEITH KASEMAN

Designed to fit within the Hinman Courtyard at Georgia Tech, this pavilion was created using interactive parametric systems within Grasshopper. Aside from providing shade and cover from rain, this design incorporates configurable spaces that facilitate enjoyably tuned modes of working and relaxing outside in all seasons. The columns on this simple frame are designed with track sliders on which various fabric types can be attached to and arranged in a multitude of ways to support the desired mode of the occupant. This system also includes pneumatic ethylene tetrafluoroethylene (EFTE) panels that can be affixed directly to the frame and inflated as needed.

Group members: Shaun Enwright, Ian Morey

SPATIAL INTERACTIVITY

FALL 2021 | M+M III | PROF. KEITH KASEMAN

Fologram is an application that connects hand-held devices to Rhino3D to facilitate mixed-reality modes of working. In this exercise, groups were tasked with developing an interactive spatial system. We designed a free-floating architectural space frame where geometries, volumes, and parametric relationships became modifiable curvebased systems. Collaborative operability was made possible through Grasshopper and Fologram, as parameters were synced to phones and device-tracking was utilized as a means to modify the space frame in real space and time.

Group members: Shyam Samani, Kevin Miller

TAP 1

to draw, the user taps their phone screen to generate a circle from which a hidden cyclinder is generated and populated with a hidden collection of points connected by 1-degree curves

the 1-degree curves generate a space frame within and between cylinders that can be modified in height and degree of connectivity directly from the users phone

TAP 2

LINE DRAWN BY USER

n

nodes

device-tracking registers as sphere on grid that moves with the user

when user is inside a circle, a series of concentric circles respond to audio input to notify user that they are unable to drawn again within this space

y

x h

frame

This parametric system begins with a blank grid. Upon syncing devices, the grid appears in real space on the users phone. To begin drawing, the user taps their phone screen to activate a point on the grid. Around this grid point, a circle is generated that, in turn, generates a hidden cylinder populated with a collection of points that are automatically connected by 1-degree curves to create a space frame. The space frame can be modified in height and degree of connectivity directly from the users phone. As the user moves through space, their location is tracked by their phone and a sphere appears to help the user visualize where they are in relation to the grid. Each time the user taps their phone, a new point is created and a line is automatically drawn to connect the points. When the user steps inside of a circle, the space frame disappears and concentric circles that respond to audio input appear around the user. This notifies the user that they have already utilized this portion of the grid for drawing. As individual space frames are generated, another level of connectivity is generated between space frames as curves. These “between-frames” can also be controlled by modifying the degree of connectivity of each circle.