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How to calculate the bounding box for a given lat/lng location?
...de, according to the WGS-84 ellipsoid [m]
def WGS84EarthRadius(lat):
# http://en.wikipedia.org/wiki/Earth_radius
An = WGS84_a*WGS84_a * math.cos(lat)
Bn = WGS84_b*WGS84_b * math.sin(lat)
Ad = WGS84_a * math.cos(lat)
Bd = WGS84_b * math.sin(lat)
return math.sqrt( (An*An + Bn*B...
JSON: why are forward slashes escaped?
...ON serializer would even care where the JSON ends up. On a web page, in an HTTP request, whatever. Let the final renderer do additional encoding, if it needs it.
– Dan Ross
Apr 28 '16 at 5:11
...
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...
In PyCharm, how to go back to last location?
...
Under ArchLinux with PyCharm CE 3.1 works the combination Ctrl + Alt + Left.
This is the way I find out the combination:
(Right click) Go To -> Implementation(s)
Double Shift -> Back
There is an option Back in the section Actions
Ctrl + Shift + A
And then the ...
Useless use of cat?
...esponding to him. After all, in my younger years, I would have written the command as grep foo file.txt | cut ... | cut ... because whenever you do the frequent single greps you learn the placement of the file argument and it is ready knowledge that the first is the pattern and the later ones are fi...
I need an unordered list without any bullets
...ap 2:
<ul class="unstyled">
<li>...</li>
</ul>
http://twitter.github.io/bootstrap/base-css.html#typography
Bootstrap 3 and 4:
<ul class="list-unstyled">
<li>...</li>
</ul>
Bootstrap 3: http://getbootstrap.com/css/#type-lists
Bootstrap 4: https:...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...en scaling. For a good example, see:
(source: springsource.com)
and: http://blog.springsource.org/2011/04/01/routing-topologies-for-performance-and-scalability-with-rabbitmq/
Finally, in regards to redis, yes, it can be used as a message broker, and can do well. However, Rabbitmq has more mes...
How to compare if two structs, slices or maps are equal?
... function (which performance wise would be better than using reflection):
http://play.golang.org/p/CPdfsYGNy_
m1 := map[string]int{
"a":1,
"b":2,
}
m2 := map[string]int{
"a":1,
"b":2,
}
fmt.Println(reflect.DeepEqual(m1, m2))
...
What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
What will the command
7 Answers
7
...
Disabling the fullscreen editing view for soft keyboard input in landscape?
...t;?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<EditText
android:imeOptions="f...