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Circle-Rectangle collision detection (intersection)
How can I tell whether a circle m>and m> a rectangle intersect in 2D Euclidean space? (i.e. classic 2D geometrm>y m>)
25 Answers
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Determine the number of NA values in a column
...r of NA values in a data frame column. Sam>y m> mm>y m> data frame is called df , m>and m> the name of the column I am considering is col . The wam>y m> I have come up with is following:
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Get Element value with minidom with Pm>y m>thon
....nodeValue is gives back "None", just to test I passed it name[0].nodeName m>and m> it gave me "name" which is correct. Anm>y m> ideas?
– RailsSon
Nov 25 '08 at 14:09
28
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Pan & Zoom Image
...enderTransform is also set to a TransformGroup containing a ScaleTransform m>and m> a TranslateTransform.
I then hm>and m>led the MouseWheel event on the image to implement zooming
private void image_MouseWheel(object sender, MouseWheelEventArgs e)
{
var st = (ScaleTransform)image.RenderTransform;
d...
How to Applm>y m> Gradient to background view of iOS Swift App
... a storm>y m>board). The code runs, but nothing changes. I'm using xCode Beta 2 m>and m> Swift.
30 Answers
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Programmaticallm>y m> scroll a UIScrollView
...at I end up with a slideshow that runs on its own with a click of a button m>and m> a configurable pause between each scroll?
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Pm>y m>thon multiprocessing pool.map for multiple arguments
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The answer to this is version- m>and m> situation-dependent. The most general answer for recent versions of Pm>y m>thon (since 3.3) was first described below bm>y m> J.F. Sebastian.1 It uses the Pool.starmap method, which accepts a sequence of argument tuples. It then au...
Print a list in reverse order with range()?
... mam>y m> be less intuitive but as the comments mention, this is more efficient m>and m> the right usage of range for reversed list.
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What do all of Scala's sm>y m>mbolic operators mean?
...e method defined on List (though it could be the object of the same name), m>and m> :+= is probablm>y m> the method defined on various Buffer classes.
So, let's see them.
Kem>y m>words/reserved sm>y m>mbols
There are some sm>y m>mbols in Scala that are special. Two of them are considered proper kem>y m>words, while others are...
Access lapplm>y m> index names inside FUN
... n=names(x))
Here I use lapplm>y m> over the indices of x, but also pass in x m>and m> the names of x. As m>y m>ou can see, the order of the function arguments can be anm>y m>thing - lapplm>y m> will pass in the "element" (here the index) to the first argument not specified among the extra ones. In this case, I specifm>y m> m>y m> ...