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Sort points in clockwise order?
...nter.x) * (a.x - center.x) + (a.y - center.y) * (a.y - center.y);
int d2 = (b.x - center.x) * (b.x - center.x) + (b.y - center.y) * (b.y - center.y);
return d1 > d2;
}
This will order the points clockwise starting from the 12 o'clock. Points on the same "hour" will be ordered starting f...
Revert a range of commits in git
...Git are you using?
Reverting multiple commits in only supported in Git1.7.2+: see "Rollback to an old commit using revert multiple times." for more details.
The current git revert man page is only for the current Git version (1.7.4+).
As the OP Alex Spurling reports in the comments:
Upgrading t...
UITableView with fixed section headers
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answered Jul 11 '13 at 1:22
bachonkbachonk
3,68411 gold badge1111 silver badges1313 bronze badges
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Append integer to beginning of list in Python [duplicate]
...
>>>var=7
>>>array = [1,2,3,4,5,6]
>>>array.insert(0,var)
>>>array
[7, 1, 2, 3, 4, 5, 6]
How it works:
array.insert(index, value)
Insert an item at a given position. The first argument is the index of the element before which t...
How to loop through files matching wildcard in batch file
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295
Assuming you have two programs that process the two files, process_in.exe and process_out.exe:...
How do I convert an HttpRequestBase into an HttpRequest object?
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edited Sep 21 '09 at 1:54
answered Sep 21 '09 at 1:44
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Iterate a list as pair (current, next) in Python
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132
Here's a relevant example from the itertools module docs:
import itertools
def pairwise(iterabl...
Merge Images Side by Side(Horizontally)
...es: 600x30, 600x30, 600x30, 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively.
5 Answers
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Git pull after forced update
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528
To receive the new commits
git fetch
Reset
You can reset the commit for a local branch usin...
Rails detect if request was AJAX
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249
You can check for a header[X-Requested-With] to see if it is an AJAX request. Here is a good a...