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Peak detection in a 2D array
...cipy.ndimage.measurements.label on the mask to label all distinct objects. Then you'll be able to play with them individually.
Note that the method works well because the background is not noisy. If it were, you would detect a bunch of other unwanted peaks in the background. Another important facto...
Getting the current page
...contentOffset.x+(0.5*self.frame.size.width))/self.frame.width)+1
}
}
Then just call:
scrollView.currentPage
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Git Checkout warning: unable to unlink files, permission denied
...ot releasing the handle of those files.
Make sure nothing is running, and then try your checkout again.
Note: it can also be related with the way Git has been installed (on Windows, UAC can generate problem if msysgit is installed in C:\Program or C:\Program Files, see "msysgit - sh.exe - fork: Pe...
Is it possible to disable scrolling on a ViewPager
...wn subclass of ViewPager that has a private boolean flag, isPagingEnabled. Then override the onTouchEvent and onInterceptTouchEvent methods. If isPagingEnabled equals true invoke the super method, otherwise return.
public class CustomViewPager extends ViewPager {
private boolean isPagingEnable...
Asynchronous vs Multithreading - Is there a difference?
...am is in the habit of sending items into it's own queue (a common pattern) then the bit of code that sends the item doesn't wait for the operation to finish, but rather just returns. The operation will be taken care of in due course by the main loop.
– Michael Kohne
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How to split a comma-separated string?
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I kept thinking for 10 hours, then searched SO. didn't know that it is so easy to .split();
– DeathRs
Dec 12 '15 at 2:55
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How to call a Python function from Node.js
...know of is to use "child_process" package which comes packaged with node.
Then you can do something like:
const spawn = require("child_process").spawn;
const pythonProcess = spawn('python',["path/to/script.py", arg1, arg2, ...]);
Then all you have to do is make sure that you import sys in your p...
'Static readonly' vs. 'const'
...imes have been inlined by the JIT anyway
If the value will never change, then const is fine - Zero etc make reasonable consts ;p Other than that, static properties are more common.
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iPhone viewWillAppear not firing
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If you use a navigation controller and set its delegate, then the view{Will,Did}{Appear,Disappear} methods are not invoked.
You need to use the navigation controller delegate methods instead:
navigationController:willShowViewController:animated:
navigationController:didShowViewCo...
Implement touch using Python?
...lib is bugfix-only now. Therefore, on Python 2.7: pip install pathlib2 and then from pathlib2 import Path.
– Ian Lin
Nov 23 '18 at 8:58
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