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Saving images in Python at a very high quality
...at it is easiest to determine these values by first plotting the image and then rotating it and watching the current values of the angles appear towards the bottom of the window just below the actual plot. Keep in mind that the x, y, z, positions appear by default, but are replaced with the two angl...
Does my application “contain encryption”?
...
(ii) your app uses, accesses, implements or incorporates encryption for authentication only
(iii) your app uses, accesses, implements or incorporates encryption with key lengths not exceeding 56 bits symmetric, 512 bits asymmetric and/or 112 bit elliptic curve
(iv) your app is a mass market produ...
Javascript equivalent of Python's zip function
...elieve the following is a valid return value:
// > zip([])
// []
// then you can special-case it, or just do
// return arrays.length==0 ? [] : arrays[0].map(...)
The above assumes that the arrays are of equal size, as they should be. It also assumes you pass in a single list of lists arg...
Adding iOS UITableView HeaderView (not section header)
...iew as a container, add a text label and an image view to that new UIView, then set tableHeaderView to the new view.
For example, in a UITableViewController:
-(void)viewDidLoad
{
// ...
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
UIImageView *...
showDialog deprecated. What's the alternative?
...u define onClick attribute in xml like this: android:onClick="onClick" and then the method above in Java. If you need a custom Listener then you have to define one yourself. More details are in this question link
– MishaLee
Aug 7 '14 at 0:31
...
Tips for debugging .htaccess rewrite rules
... aggressively cached by your browser.
Use a 302 instead till you are sure, then change it to a 301.
3. Remember that 301's are aggressively cached in your browser
If your rule does not work and it looks right to you, and you were not using suggestions 1 and 2, then re-test after clearing your brow...
Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
... create a new array as
new ArrayList<Integer>(Arrays.asList(ia))
then you create new ArrayList, which is a full, independent copy of the original one. Although here you create the wrapper using Arrays.asList as well, it is used only during the construction of the new ArrayList and is garba...
How do I write a short literal in C++?
... as if it's a short literal (i.e. it wouldn't actually allocate an int and then cast it every time).
The following illustrates how much you should worry about this:
a = 2L;
b = 2.0;
c = (short)2;
d = '\2';
Compile -> disassemble ->
movl $2, _a
movl $2, _b
movl $2, _c
movl $2,...
Diff output from two programs without temporary files
...lias diffcmd bash -c \'diff \<\(sh -c \!:1\) \<\( sh -c \!:2 \)\'. (Then for, example: diffcmd "ls" "ls -a").
– Paul Lynch
May 15 '13 at 18:36
...
What is the difference between persist() and merge() in JPA and Hibernate?
...referenced by X, X' is set to
reference Y'. (Note that if X is
managed then X is the same object as
X'.)
If X is an entity merged to X',
with a reference to another entity Y,
where cascade=MERGE or cascade=ALL is
not specified, then navigation of the
same association from X' yields a...