Programming with Escher
Learning and science
programming tutorial
SHOW HN2017
110points
17comments
#410of 2,242 in 2017
Top 19%of 2017 by points
How HN took it
CuriousMostly questions and neutral comments
2 positive, 5 neutral or asking, 0 mixed, 1 critical, out of 8 comments about the project. Thread score +0.06.
Docs: 2 for, 1 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Clear and useful tutorial for learning recursive drawing
From 2 comments
Also this one, below the definition of `nonet()` :) > to obtain the desider result Awesome post!
cauthon on HNThe article references the Henderson Escher example, which is nicely surmised in a SICP lecture from '86: SICP-3A video…
hatsuseno on HN
Requests
Add backward drawing or inverse mapping explanation
From 2 comments
Ok for forward drawing, what about backward drawing ? i.e. finding the (u,v) of the fish image from the (x,y) inside the infinite square ?
ttoinou on HNYes that's what I meant thx The same question goes Escher Infinite Circle. I know it has something to do with Poincaré Disk Model but can't figure it out
ttoinou on HN
Link repository from rendered output
From 1 comment
It might make sense to link to the repository with Jupiter notebook, https://github.com/mapio/programming-with-escher in the rendered output for the convenience of the reader. If…
brudgers on HN
Questions
How to compute inverse mapping for the Escher square limit
From 2 comments
Ok for forward drawing, what about backward drawing ? i.e. finding the (u,v) of the fish image from the (x,y) inside the infinite square ?
ttoinou on HNYes that's what I meant thx The same question goes Escher Infinite Circle. I know it has something to do with Poincaré Disk Model but can't figure it out
ttoinou on HN
Alternatives named
SICP lecture Escher example
From 1 comment
The article references the Henderson Escher example, which is nicely surmised in a SICP lecture from '86: SICP-3A video…
hatsuseno on HN
Shadertoy
From 1 comment
I learned "Forward Mapping" in a scientific paper when I was creating my own morphing and deformations algorithms, I don't remember which paper. (Some Googled links I just found…
ttoinou on HN