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How to use glOrtho() in OpenGL?
... popular choice for calculating such matrices. http://glm.g-truc.net/0.9.2/api/a00245.html documents both an ortho and frustum operations.
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How to detect if multiple keys are pressed at once using JavaScript?
...ener left over.
For thoroughness, here is a quick reference to the class's API, presented in C/Java style so you know what they return and what arguments they expect.
Boolean key_down (String key);
Returns true if key is down, false otherwise.
Boolean keys_down (String key1, String key2, ...);
...
How can I reliably determine the type of a variable that is declared using var at design time?
... of a possible 'interface' if you already had the compiler available as an API to call into.
The other route
What does the Reflect object do in JavaScript?
...et, name);
// now do the default thing
}
});
The Reflect and Proxy APIs were designed in tandem, such that for each Proxy trap, there exists a corresponding method on Reflect that "does the default thing". Hence, whenever you find yourself wanting to "do the default" thing inside a Proxy han...
Mail multipart/alternative vs multipart/mixed
...e.multipart import MIMEMultipart
from email.mime.text import MIMEText
from apiclient import errors, discovery
import mimetypes
from email.mime.image import MIMEImage
from email.mime.audio import MIMEAudio
from email.mime.base import MIMEBase
SCOPES = 'https://www.googleapis.com/auth/gmail.send'
CLI...
How to draw a path on a map using kml file?
...able dot = this.getResources().getDrawable(R.drawable.pixel);
MapItemizedOverlay bgItemizedOverlay = new MapItemizedOverlay(dot,this);
OverlayItem currentPixel = new OverlayItem(destPoint, null, null );
OverlayItem destPixel = new OverlayItem(currentPoint, null, n...
How do I plot in real-time in a while loop using matplotlib?
...ed in realtime plotting, I'd recommend looking into matplotlib's animation API. In particular, using blit to avoid redrawing the background on every frame can give you substantial speed gains (~10x):
#!/usr/bin/env python
import numpy as np
import time
import matplotlib
matplotlib.use('GTKAgg')
fr...
How should one use std::optional?
...I should use it or how I should use it.
Consider when you are writing an API and you want to express that "not having a return" value is not an error. For example, you need to read data from a socket, and when a data block is complete, you parse it and return it:
class YourBlock { /* block header...
Secure hash and salt for PHP passwords
...ly shared hosts, @ircmaxell has built a compatibility layer for the coming API that is backward compatible to PHP 5.3.7.
Cryptography Recap & Disclaimer
The computational power required to actually crack a hashed password doesn't exist. The only way for computers to "crack" a password is to re...
In C#, What is a monad?
... no real way to abstract out this error checking, even if you have lots of API-calls that you need to combine in this fashion. This is basically just another monad that combines the function calls by the rule "if the function on the left returned -1, do return -1 ourselves, otherwise call the functi...