Contents of /fract/TODO

-*- mode: text; mode: outline-minor -*-

* Bugs

** Filling mirrored rectangles

When filling the mirrored version of a rectangle, it's filled in even
if it's completely outside the screen.  The current algorithm just
moves all the corners inside the screen and then fills the rectangle
anyway.  But if the rectangle was completely outside the screen to
begin with, we should be getting a line on the edge of the screen, or
something.  I don't know why we don't see any such things, but this
needs to be rethought.

* Features

** Increase precision

Use mpz module; *Note GNU arbitrary magnitude
integers:(python-lib)mpz.

Artifacts from lack of precision can be reproduced by this:
<URL:http://tower.fukt.bth.se:4711/fract/mandelzoom.cgi?zoom=1.0&width=240&height=240&iter=270&diag=3.27364250552e-14&cx=-1.76661906489&cy=0.0419255735794&owidth=480&oheight=480&type=html>
1	-- mode: text; mode: outline-minor --
2
3	* Bugs
4
5	** Filling mirrored rectangles
6
7	When filling the mirrored version of a rectangle, it's filled in even
8	if it's completely outside the screen. The current algorithm just
9	moves all the corners inside the screen and then fills the rectangle
10	anyway. But if the rectangle was completely outside the screen to
11	begin with, we should be getting a line on the edge of the screen, or
12	something. I don't know why we don't see any such things, but this
13	needs to be rethought.
14
15	* Features
16
17	** Increase precision
18
19	Use mpz module; *Note GNU arbitrary magnitude
20	integers:(python-lib)mpz.
21
22	Artifacts from lack of precision can be reproduced by this:
23	<URL:http://tower.fukt.bth.se:4711/fract/mandelzoom.cgi?zoom=1.0&width=240&height=240&iter=270&diag=3.27364250552e-14&cx=-1.76661906489&cy=0.0419255735794&owidth=480&oheight=480&type=html>