![Final product image](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/final_image/final.jpg)
This wonderful dome design of the Sheikh Lotfallah Mosque in Ispahan, Iran, is based on a very interesting pattern that shows harmonic growth. We are going to approximate the pattern itself, that is the almond shapes radiating from the center. The more organic vine decoration can then be added freehand, or substituted for any ornamentation you like.
![The dome of Sheikh Lotfallah Mosque in Ispahan Iran](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/dome.jpg)
The construction is not very complicated, but accuracy is more important than ever, so make sure your compass point is sharpened, and take your time to be extra precise when joining points.
1. Draw the First Ring
Step 1
Draw a circle and the six circles that divide it into six (see Working With 6 and 12).
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/1.jpg Harmonic pattern step 1](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/1.jpg)
Step 2
Divide one of the arcs in two by joining two of the points formed by the intersections of these outer circles. All we actually need is the point on the central circle.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/2.jpg Harmonic pattern step 2](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/2.jpg)
Step 3
Starting from that point, walk the compass around to draw another six circles.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/3.jpg Harmonic pattern step 3](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/3.jpg)
Step 4
Find one of the fish-scale-shaped areas that touch the inner circle, and join its four points. A square appears!
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/4.jpg Harmonic pattern step 4](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/4.jpg)
Step 5
Draw all 12 squares around the circle.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/5.jpg Harmonic pattern step 5](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/5.jpg)
2. Draw the Second Ring
Step 1
Now we're going to draw the next ring of squares. Place the dry point on the point between two squares, and open it to the equivalent point after next, so it embraces two squares. Draw the circle.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/6.jpg Harmonic pattern step 6](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/6.jpg)
Step 2
Repeat with each of the 12 points. You'll find the fish-scale shape again, larger than in the first ring. Draw the square inside it.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/7.jpg Harmonic pattern step 7](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/7.jpg)
Step 3
Repeat all around to create a second ring of squares.
![Harmonic pattern step 8](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/8.jpg)
3. Draw the Third Ring
Step 1
To add a ring, repeat the previous few steps: Place the dry point where two squares touch, open to the point after next, and draw a circle.
![Harmonic pattern step 9](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/9.jpg)
Step 2
Repeat all around.
![Harmonic pattern step 10](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/10.jpg)
Step 3
Find the first square.
![Harmonic pattern step 11](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/11.jpg)
Step 4
Draw all the squares around this third ring.
![Harmonic pattern step 12](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/12.jpg)
Note:
We could stop here and stay with the squares, which form our basic grid. They form a striking arrangement in themselves, particularly when more rings are added.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/13a.jpg Variant with squares](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/13a.jpg)
Filling each square with a motif (geometric or freehand) is time-consuming, but the end result is simply smashing.
![Image: https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/13b.jpg Variant with squares filled and coloured](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/13b.jpg)
We are going to carry on, however, to create the almond shapes seen in our model.
4. Create the Almond Shapes
Step 1
Now we have to work on one square at a time, so let's zoom in.
![Harmonic pattern step 13](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/14.jpg)
Step 2
The two guidelines that intersect inside the square actually indicate the centre of the square. But if you don't have guidelines for some reason, just draw the diagonals to find that centre.
![Harmonic pattern step 14](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/15.jpg)
Step 3
Draw the circle inscribed in the square.
![Harmonic pattern step 15](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/16.jpg)
Step 4
Repeat all around that ring.
![Harmonic pattern step 16](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/17.jpg)
Step 5
Do the next ring.
![Harmonic pattern step 17](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/18.jpg)
Step 6
Carry on till every square has been done.
![Harmonic pattern step 18](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/19.jpg)
5. Finishing
Step 1
All that is left now is to ink the almond shapes as follows. The points always point towards the centre of the original circle—otherwise you get quite a different design!
![Harmonic pattern step 19](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/20.jpg)
Step 2
Complete the inking.
![Harmonic pattern step 20](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/21.jpg)
Great Work, You're Done!
You are then free to simply colour it, or add intricate ornaments inside each almond. The finished version below has two additional rings. The more rings, the more impressive the result!
![Harmonic pattern finalized](https://cms-assets.tutsplus.com/uploads/users/110/posts/24859/image/final.jpg)
The pattern we just completed is an infinite pattern with a defined centre and rate of growth. Next lesson, we turn to a finite motif that also begins with 12 circles, for a highly intricate result!