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Draw a perfect circle from user's touch
...e:
Let's identify a simple and straightforward pattern, typical for the selected shape:
So it is not that hard to implement a circle detection mechanism based on that idea. See working demo below (Sorry, I'm using Java as the fastest way to provide this fast and a bit dirty example):
import j...
How can I exclude directories from grep -R?
...n regarding syntax and usage see
The GNU man page for File and Directory Selection
A related StackOverflow answer Use grep --exclude/--include syntax to not grep through certain files
For older GNU Greps and POSIX Grep, use find as suggested in other answers.
Or just use ack (Edit: or The Silve...
Fat models and skinny controllers sounds like creating God models [closed]
...ry thinm responsible for little mor that calling the appropriate model and selecting a template.
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Suppress warning “Category is implementing a method which will also be implemented by its primary cl
...is answer should be the correct one. Anyway it has more votes than the one selected as answer.
– Juan Catalan
Nov 5 '14 at 17:28
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Paging in a Rest Collection
... would identify a concrete resource (be it a resource in a specific state, selection of resources, or discrete result), it goes in the URL. Search queries, pagination, and restful transactions are good examples of this. If its something that is needed to transform the abstract representation to a ...
Renaming a virtualenv folder without breaking it
...ate_this.py instead of using the
location of the Python interpreter to
select the environment.
Note: you must run this after you've
installed any packages into the
environment. If you make an
environment relocatable, then install
a new package, you must run virtualenv
--relocatabl...
What is “rvalue reference for *this”?
...
If a class instance is not const, overload resolution will preferentially select the non-const version. If the instance is const, the user can only call the const version. And the this pointer is a const pointer, so the instance cannot be changed.
What "r-value reference for this` does is allow yo...
What are the main performance differences between varchar and nvarchar SQL Server data types?
... AND ([URLa] IS NULL OR [URLu] IS NULL))
);
In this model you only SELECT from the [URL] computed column. For inserting and updating, you determine which field to use by seeing if converting alters the incoming value, which has to be of NVARCHAR type:
INSERT INTO TableName (..., URLa, URLu)...
Check if a user has scrolled to the bottom
...
how can i select particular div id instead of the whole window?
– James Smith
Mar 23 '15 at 3:28
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How is a tag different from a branch in Git? Which should I use, here?
...;" would generate anonymous unnamed branch (so called 'detached HEAD') and select state of tag. Creating a new commit does it on this unnamed branch, and does not change what tag points to.
– Jakub Narębski
Feb 16 '12 at 14:04
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