AIRJay Cheong Jia Hui#599939

2014Algorithm Sketchbook

ALGORITHMIC TASK WEEK 1The images below show some of my first experimentations in Grass-hopper made while watching the tutorial videos. The opposite page depicts a series of different surfaces by altering the same set of curves, and two simple models of buildings created by lofting several curves.

VA R I AT I O N S O N A S E R I E S O F C U R V E S

Form modelled after Frank Gehry’s sculpture in Barcelona1

Form modelled after Norman Foster’s skyscraper in London2

I started off doing vector exercises, connecting curves and polygons as seen below, before learning how to manipulate curves and familia-rising myself with the functions on the transform menu.

ALGORITHMIC TASK WEEK 2

A.6. Appendix - Algorithmic Sketches

D I V I D I N G C U R V E S & I N -T E R P O L AT I O N

C O N T O U R I N G & C R E -AT I N G S U R FA C E S

FA B R I C AT I O N

Grasshopper allows you to lay out the sixteen pieces that form contours much quicker and conveniently than in Rhino!

Using the Contour tool, I pro-jected the contour lines onto the XY plane and lofted them. Another way of fabrication - by sectioning the form

I created this form by dividing the curves I drew in Rhino and using the SED Arc tool. This method will come in handy for fabrication, together with the method for creating notches/tabs

C R E AT I N G F O R M S T H AT F O L L O W C O N T O U R S

I N T E R S E C T I O N S

With the contour lines drawn previously, I learnt how to place forms - in this case a rectangle - along contour lines

I could scale the sizes of the rectangles using the Scale Non Uniform tool and a point. Very interesting tool that’s probably used in many buildings with varying sizes of perforations in them

A.6. Appendix - Algorithmic Sketches

E X P E R I M E N TAT I O N S

After the contour exercises, I thought of panelling a lofted surface with varying sizes of circle perforations. I felt that the two key commands for doing this were Divide Surface - to distribute a u/v grid across the plane’s surface, and Plane Nor-mal - to apply the circles onto the plane’s surface

Then I tried panelling custom shapes that were not provided in the Grasshopper menu. I cre-ated a hexagram solid in Rhino and set it as a Geometry in Grasshopper

The Cull and List commands were introduced this week. I experiment-ed with creating some patterns using basic shapes. I also used the Cull commands to develop my experimentations from last week.

ALGORITHMIC TASK WEEK 3

A.6. Appendix - Algorithmic Sketches

S U R FA C E PAT T E R N E X P E R I M E N TAT I O N S

I learnt how to create patterns using Voronoi and Delaunay meshes, and also did so with simple shapes like circles

A.6. Appendix - Algorithmic Sketches

S U R FA C E PAT T E R N E X P E R I M E N TAT I O N S

I panelled various shapes onto a cone in Grasshopper. The Cull com-mands were very useful in trimming off different portions of a pattern

Christmas tree Christmas tree with presents Very thorny cactus

Tree with cantilevers Cactus

BIBLIOGRAPHY1 Barcelona Overtime, ‘Pritzker’s in Barcelona’, <http://www.barcelonaovertime.com/tours/book-a-tour/pritzker-s-in-barcelona> [accessed 12 March 2014]

2 Inhabitat, ‘London’s Famous Gherkin Building Goes Green - Literally’, <http://inhabitat.com/gherkin-gets-a-green-roof/> [accessed 12 March 2014]