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Get distance between two points in canvas
I have canvas drawing tab and want lineWidth to be based on distance between two last mousemove coordinate updates. I will make translation of distance to width myself, I just need to know how to get distance between those points (I already have coordinates of those pointes).
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How to convert boost path type to string?
Hello I currently have a program that gets a full path of a file's location and is put into a variable that is the type of: boost::filesystem2::path
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Bash history without line numbers
The bash history command is very cool. I understand why it shows the line numbers, but is there a way I can invoke the history command and suppress the line numbers?
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One-line list comprehension: if-else variants
It's more about python list comprehension syntax. I've got a list comprehension that produces list of odd numbers of a given range:
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How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
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PDO Prepared Inserts multiple rows in single query
I am currently using this type of SQL on MySQL to insert multiple rows of values in one single query:
22 Answers
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How to cast an object in Objective-C
Is there a way to cast objects in objective-c much like the way objects are cast in VB.NET?
5 Answers
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Better way of getting time in milliseconds in javascript?
Is there an alternative in JavaScript of getting time in milliseconds using the date object, or at least a way to reuse that object, without having to instantiate a new object every time I need to get this value? I am asking this because I am trying to make a simple game engine in JavaScript, and wh...
Determine distance from the top of a div to top of window with javascript
How do I determine the distance between the very top of a div to the top of the current screen? I just want the pixel distance to the top of the current screen, not the top of the document. I've tried a few things like .offset() and .offsetHeight , but I just can't wrap my brain around it. Tha...
Java Generics (Wildcards)
I have a couple of questions about generic wildcards in Java:
6 Answers
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