1. An Attempt to Create a Proportional
Model of “Weave a Home”
Sufian Ahmad
2. Platonic Solids and Regular Polygons
• Regular polygons are geometric shapes that
can be created by dividing a circle into a set of
sections
3. Platonic Solids and Regular Polygons
• A hexagon for example, is created by
connecting the intersection points (in red
circles) for three circles and the horizon line
4. Platonic Solids and Regular Polygons
• Basic trigonometry is applicable to regular
polygons, they are basically right angled triangles
and by applying Pythagorean theorem you can
calculate the length of the side (in green)
• Given that we start from a unit
circle (r = 1) in the figure to the right
the height of the rectangle is:
• 12 + X2 = 24
•X = √3 hence giving us
the root 3 ratio
5. Mystic Interpretations of Geometry
• Ancient civilizations believed that geometric
properties in platonic solids and polygons are
the same values governing the whole universe
• Because these ratios or proportions are very
common in nature, they look beautiful to the
human eye
• Therefore, it became a traditional “best
practice” to follow these proportions in design
6. Mystic Interpretations of Geometry
• Ancients believed that the universe was created the
same way we created the hexagon in slide 3, by
intersecting circles (the absolute world and the relative
world)
• That concept of intersecting world is symbolized by
the flower of life
• Below is another important symbol, Metatron’s Cube
• Metatron’s Cube is a hexagon with all the platonic
shapes appearing inside it, which symbolizes the
creation of the world
7. Root Ratios
• Root ratios are the
relationship
between the sides
of a proportional
rectangle and the
sides of another
proportional
rectangle created
inside it
• Lines A and B in
figure (green lines)
8. Root Ratios
• To create interesting shapes and ornamentations, geometers
create complex grids by repeating basic proportional divisions
over and over
• An example of a golden ratio grid creating an ornamentation
9. “Weave a Home” Grid
• The basic golden ratio is a simple relationship
between two lengths, which is not very
beneficial to create an interesting shape
• If we were to only use the basic ratio, we will
always have shapes that are divided into two
thirds
10. “Weave a Home” Grid
• To get a close match for the basic “Weave a
Home” design (10 bending points on frame) we
have to use the full range of ornamentation grids
• By full range of ornamentation grid, I mean
instead of just using the golden ratio I will extract
ratios from the pentagon and the decagon (10
sides) grid
• A process is similar to traditional ornaments
created (slide 8)
11. Animated Grid
• The animation below demonstrates how a golden ratio
ornamentation lines and parts all fit a repeated decagon grid
12. Polygenic grids and Values
• The red lines (pentagon
sides) gradually get
smaller and smaller
• The golden ratio governs
the relationship between
red sides
• Plotting the lengths of
the red sides onto a
line chart will give us
the ratio curve
14. Different Roots and polygons
A repeated 12 sided polygon (root 3) A repeated sqaure (root 2) A repeated pentagon (golden)
A repeated 10 sided polygon (golden)A repeated hexagon (root 3)
15. From Sides to Angles
• To divide a right angle into
8 proportional angles
rather than proportional
lengths I compared the
lengths of 8 sides of a
repeated polygon grid to 8
angles that sum up to 90
• E.g. A series of Hexagon
side lengths with a sum of
(visualized in the next
slide)
• A simple conversion to
sum 90 will give the right
column
Lengths Angles
470.094045 25.00313694
352.570534 18.75235272
264.4279 14.06426451
198.320925 10.54819838
148.740694 7.911148802
111.55552 5.933361575
83.66664 4.450021181
62.74998 3.337515886
Sum = 1692.126238 Sum = 90
17. Hexagon Grid Values
•The values of 18 sided
polygon are plotted as
dotted lines vs. 16 sided
polygon in solid lines
•We have selected the 16
sided polygon convertion