A-shape is an iPad and iPhone app. It can allow you to create interesting shapes, with affine transformation.

We do an iteration:

for i = 0 to Total Objects
xs = X
ys = Y
x = xs * R * cos(teta) - ys * S * sin(psi) + E
y = xs * R * sin(teta) - ys * S * cos(psi) + F
Object's size = Total Objects - i
Draw the object at coordinate (x,y)
Rotate the object by Rotation Increment

Try different parameters, objects and colors, you may find the result interesting at the end of the iteration.

Here are a couple of examples

Thursday, 17 January 2019

Version 2.0 released in App Store

This app is finally in App Store again.

This time it works on both iPad and iPhone.

The UI has been altered to look more "modern".

It's free for now.

No reason not to enjoy A-shape.

Feedbacks are certainly welcome.

Saturday, 6 April 2013

Version 1.0.1 released

This version that can proceed to the full version has been released. Have fun using it, and feel free to send feedback.

Wednesday, 27 March 2013

Proceed to full version - issue

It's been reported that it could not proceed to the full version. Yes it is identified and we apologise. The fix will be released soon. Thank you for your time giving feedbacks.

Monday, 25 March 2013


It's in the App Store, enjoy using it. Feel free to send feedback.