7527e0bec3
ALGO: generalize the QuadTree folds
...
Now we traverse over all nodes (TNode, TLeaf, TNil),
not just TLeaf.
2014-11-18 00:56:24 +01:00
ea88ef84ea
Improve code prettiness
2014-11-16 16:45:51 +01:00
8c1d54d97a
ALGO: add TODO note in PolygonIntersection about Zippers
2014-11-16 04:49:34 +01:00
62583d82a5
Improve prettiness further
2014-11-16 04:49:13 +01:00
26337d437e
ALGO: expose lookupByNeighbors in QuadTree
2014-11-15 16:04:31 +01:00
60d7dca2c8
DIAG: make the current node in the tree red
2014-11-15 15:26:43 +01:00
50fc0c3d01
ALGO: add test obj to quadtree
2014-11-15 14:24:46 +01:00
0b3c7d2100
ALGO: rename wrongly named RangeSearch to QuadTree
2014-11-15 14:24:24 +01:00
f3cabab280
Implement visualizing the quad tree in a separate window
...
This window creation still sucks a bit, we should realize it
without actually showing it.
2014-11-15 03:58:38 +01:00
5fa5afc073
ALGO: rm obsolete test array
2014-11-15 03:55:52 +01:00
75c45149d9
Rename Algorithms.RangeSearch.Core to Algorithms.RangeSearch.QuadTree
2014-11-15 00:49:44 +01:00
068ea04d56
ALGO: fix bug when a pointer is between multiple quads
...
We have to set a priority, otherwise a point might belong to
multiple quads (max 4 if it's in the very middle).
2014-11-14 22:45:12 +01:00
534f0f9609
Add getSquareByZipper function
2014-11-14 21:26:02 +01:00
76afaae38e
ALGO: export constructors and Zipper in RangeSearch
2014-11-14 21:25:25 +01:00
af2e1b59cd
ALGO: add missing Show instances to RangeSearch
2014-11-14 21:24:14 +01:00
62d7c9ffcd
ALGO: implement the quad tree
2014-11-13 23:05:56 +01:00
c765c63125
POLYINT: run rmdups only once
2014-10-31 17:49:08 +01:00
61e0063d78
POLYINT: fix comparison for different-length polygons
2014-10-28 18:51:11 +01:00
d81b6b1cec
POLYINT: improve haddock doc
2014-10-26 14:58:43 +01:00
c8914c8272
POLYINT: small refactor
...
Get predecessors and successors in the beginning instead of
figuring them out for every single point separetely.
This is still O(n), butt should be a lot quicker than the previous
approach.
2014-10-26 04:22:05 +01:00
fd931db7e0
Improve readability
2014-10-25 20:39:34 +02:00
c4c397e12f
POLYINT: small refactor, abstract some stuff out
2014-10-25 20:23:34 +02:00
7965443aa6
Fix example mesh
2014-10-25 03:15:00 +02:00
9a101d68a5
POLYINT: first try of polygon intersection algorithm in O(n)
2014-10-25 01:44:13 +02:00
a31e1ff578
ALGO: improve haddock doc
2014-10-15 22:50:56 +02:00
077d0442f5
ALGO: improve style
2014-10-13 22:30:19 +02:00
8300929fd7
ALGO: refactor
...
Move sortedXY to Vector.hs, fix shadowing of scanH.
Simplified grahamCHSteps by making use of a more generalized scanH
function.
2014-10-13 22:06:12 +02:00
edde93ec77
ALGO: improve function names
2014-10-13 19:50:02 +02:00
7cdb867cf4
ALGO: Split scanH out and make the graham API more modular
2014-10-13 19:49:53 +02:00
hasufell
2c1d5fa5ec
Improve redability, add docs
2014-10-13 03:25:22 +02:00
87393af71a
Make Gif animation more nice, TODO: IMPROVE CODE
2014-10-13 02:58:18 +02:00
f82c948055
ALGO: Improve readability by introducing notcw
2014-10-12 20:37:24 +02:00
56ea542535
ALGO: fix generation of gif
...
This is a good guess... the maximum of possible steps shouldn't
be higher than twice the length of the points.
2014-10-12 19:22:37 +02:00
37b38115ae
ALGO: fix algorithm to show collinear points as part of the hull
...
There was also a bug to be fixed when doing this. We missed
an important pattern match case which casued wrong results.
2014-10-12 19:19:44 +02:00
bfcc9bfdf7
ALGO: improve redability and style, add pseudo code
...
We also slightly changed the behavior of the algorithm and
now split it at 3 elements. It doesn't matter complexity wise
and improves readability a bit.
2014-10-12 18:44:48 +02:00
cc7efa9906
ALGO: improve style
2014-10-12 03:00:25 +02:00
b75f531533
ALGO: fix grahamGetCHSteps
2014-10-12 03:00:13 +02:00
6dc4fae415
ALGO: improve readability
2014-10-12 02:11:47 +02:00
60f59bb2b7
ALGO: fix the algorithm
...
It was imprecise before and only worked by accident.
'grahamGetCHSteps' is a bit broken for now and caused duplicates.
2014-10-12 01:54:44 +02:00
6e4c7e47c2
Restructure modules
2014-10-10 17:40:08 +02:00
12da4040dc
Improve overall style and indenting
2014-10-10 00:19:05 +02:00
9c9cb29e45
ALGO: improve style
2014-10-09 17:22:41 +02:00
4877837f93
Fix step depth in grahamGetCHSteps
...
If we have 3 points and pass 1 to 'g' then 2 steps will be computed.
That means we have to substract 2 from the total length in the call
to 'g'.
2014-10-09 16:11:34 +02:00
a5473eaf96
Fix haddock docs
2014-10-09 03:27:02 +02:00
1fd0b9f27f
Allow generating gifs vor visualizing steps of the graham algo
...
TODO: this still requires us to hack on Main.hs, because
it isn't compatible with the GUI.
Also see https://github.com/diagrams/diagrams-cairo/issues/55
2014-10-09 03:10:21 +02:00
9b566f2a63
Improve error handling
2014-10-08 22:07:37 +02:00
d8d28d3ca9
Add convex hull algorithm via graham scan
2014-10-08 16:39:46 +02:00
