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How to read the RGB value of a given pixel in Python?
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edited May 3 '18 at 10:03
Matthew Smith
38844 silver badges2020 bronze badges
answered Sep 26 '08 a...
Possible to make labels appear when hovering over a point in matplotlib?
...cmap = plt.cm.RdYlGn
fig,ax = plt.subplots()
sc = plt.scatter(x,y,c=c, s=100, cmap=cmap, norm=norm)
annot = ax.annotate("", xy=(0,0), xytext=(20,20),textcoords="offset points",
bbox=dict(boxstyle="round", fc="w"),
arrowprops=dict(arrowstyle="->"))
annot.s...
How to find an available port?
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If you don't mind the port used, specify a port of 0 to the ServerSocket constructor and it will listen on any free port.
ServerSocket s = new ServerSocket(0);
System.out.println("listening on port: " + s.getLocalPort());
If you want to use a specific set of ports, then th...
Finding the direction of scrolling in a UIScrollView?
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answered Nov 1 '10 at 21:04
memmonsmemmons
38.7k2121 gold badges142142 silver badges179179 bronze badges
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Open application after clicking on Notification
...INGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(context, 0,
notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);
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JavaScript “new Array(n)” and “Array.prototype.map” weirdness
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130
It appears that the first example
x = new Array(3);
Creates an array with undefined pointers....
How to handle exceptions in a list comprehensions?
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101
There is no built-in expression in Python that lets you ignore an exception (or return alternat...
iPhone: How to switch tabs with an animation?
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Update 04/2016: Justed wanted to update this to say thank you to everyone for all the votes. Please also note that this was originally written way back when ... before ARC, before constraints, before ... a lot of stuff! So please ta...
javax.xml.bind.UnmarshalException: unexpected element (uri:“”, local:“Group”)
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answered Mar 5 '11 at 11:04
bdoughanbdoughan
140k2222 gold badges272272 silver badges370370 bronze badges
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