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Simple calculations for working with lat/lon and km distance?
...or GPS). But the error is probably negligible for your purposes.
Source: http://en.wikipedia.org/wiki/Latitude
Caution: Be aware that latlong coordinates are expressed in degrees, while the cos function in most (all?) languages typically accepts radians, therefore a degree to radians conversion i...
Real mouse position in canvas [duplicate]
...ct.left) * canvas.width see: Canvas width and height in HTML5).
Example: http://jsfiddle.net/sierawski/4xezb7nL/
Source:
jerryj comment on http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
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How to do error logging in CodeIgniter (PHP)
...n do this yourself or use this. More info on extending the core here
See http://www.codeigniter.com/user_guide/general/errors.html
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Running Selenium WebDriver python bindings in chrome
...ath or available in the webdriver.chrome.driver environment variable.
see http://code.google.com/p/selenium/wiki/ChromeDriver for full information on how wire things up.
Edit:
Right, seems to be a bug in the Python bindings wrt reading the chromedriver binary from the path or the environment vari...
Cleaner way to update nested structures
...ontact = Contact(
email = Email("aki", "akisaarinen.fi"),
web = "http://akisaarinen.fi"
)
)
scala> Lenser[Person].contact.email.user.set(person, "john")
res1: Person = Person(Aki Saarinen,Contact(Email(john,akisaarinen.fi),http://akisaarinen.fi))
Using Macrocosm:
This even wo...
How to get Url Hash (#) from server side
...not the hash?? I think it should into the future .. at least as a separate HTTP header. This is related: onebigfluke.com/2015/01/…
– bodrin
Feb 12 '15 at 17:42
...
Pure JavaScript Graphviz equivalent [closed]
...e a look at this pure JavaScript implementation of a .dot canvas renderer:
http://ushiroad.com/jsviz/
The library is not documented -- the author definitely ought to publicize and document it more (I'll contact him to suggest he put it up on github, at the very least).
Update: code has been pushed t...
Access event to call preventdefault from custom function originating from onclick attribute of tag
...nction sayHi(e) {
e.preventDefault();
alert("hi");
}
<a href="http://google.co.uk" onclick="sayHi(event);">Click to say Hi</a>
Run it as is and notice that the link does no redirect to Google after the alert.
Then, change the event passed into the onclick handler to so...
jQuery set radio button
...ng by ID anyway):
$('#' + newcol).prop('checked',true);
Here is a demo: http://jsfiddle.net/jasper/n8CdM/1/
Also, as of jQuery 1.6 the perferred method of altering a property is .prop(): http://api.jquery.com/prop
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Input and output numpy arrays to h5py
... is named. You should look at the documentation for the API and examples:
http://docs.h5py.org/en/latest/quick.html
A simple example where you are creating all of the data upfront and just want to save it to an hdf5 file would look something like:
In [1]: import numpy as np
In [2]: import h5py
In...