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How to determine if a list of polygon points are in clockwise order?
...ave to link the last point to the first one. If you have N points numbered from 0 to N-1, then you must calculate: Sum( (x[(i+1) mod N] - x[i]) * (y[i] + y[(i+1) mod N]) ) for i = 0 to N-1. I.e., must must take the index Modulo N (N ≡ 0) The formula works only for closed polygons. Polygons have no...
Calling a Method From a String With the Method's Name in Ruby
... 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1407451%2fcalling-a-method-from-a-string-with-the-methods-name-in-ruby%23new-answer', 'question_page');
}
);
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ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
... What happen if I invoke _contentList.Clear()? No one will unsubscribe from PropertyChanged!
– Paolo Moretti
Aug 3 '12 at 11:00
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How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
...he original question. The jetbrains bug says "When creating a new project, from an existing SBT project". The issue is that IntellliJ sometimes won't get the latest libraries, even with auto-import enabled. As @alefas points out, sometimes you have to force reload (ebven with a Scala plugin from 201...
What function is to replace a substring from a string in C?
... // first time through the loop, all the variable are set correctly
// from here on,
// tmp points to the end of the result string
// ins points to the next occurrence of rep in orig
// orig points to the remainder of orig after "end of rep"
while (count--) {
ins...
How to print a list of symbols exported from a dynamic library
...elf to the requested “a simple way to list the symbols that are exported from a dylib file”. “nm -gU ….dylib” is, however.
– Slipp D. Thompson
Apr 27 '16 at 4:32
ad...
How to return a result (startActivityForResult) from a TabHost Activity?
...ion e) {
// Empty
}
} else {
mParent.finishFromChild(this);
}
}
So my solution is to set result to the parent activity if present, like that:
Intent data = new Intent();
[...]
if (getParent() == null) {
setResult(Activity.RESULT_OK, data);
} else {
get...
How to count TRUE values in a logical vector
... My reply is just too long, so I posted a new answer, since it differs from previous one.
– aL3xa
Feb 5 '10 at 18:25
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Don't understand why UnboundLocalError occurs (closure) [duplicate]
...ignments bind names, so can imports, so you may also get UnboundLocalError from a statement that uses an unbounded imported name. Example: def foo(): bar = deepcopy({'a':1}); from copy import deepcopy; return bar, then from copy import deepcopy; foo(). The call succeeds if the local import from cop...
Pandas index column title or name
...erstand why this is not allowed or implemented?
– denfromufa
Apr 1 '16 at 14:42
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