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How to invoke the super constructor in Python?
...mond-shaped inheritance very well, since you may end up calling the shared base class's initialiser twice.
Another way is to use super(), as others have shown. For single-inheritance, it does basically the same thing as letting you call the parent's initialiser.
However, super() is quite a bit mo...
embedding image in html email
...ple images at various locations in the email.
<img src="data:image/jpg;base64,{{base64-data-string here}}" />
And to make this post usefully for others to:
If you don't have a base64-data string, create one easily at:
http://www.motobit.com/util/base64-decoder-encoder.asp from a image file....
augmented reality framework [closed]
... I would also add that it depends if you want do do location based AR or vision based (e.g. marker based) AR. I would say that on android for vision based ar metaio.com/software/mobile-sdk is realy good and for location based you can also try droidar.googlecode.com or code.google.com/p...
Convert SVG image to PNG with PHP
...t involves a dynamically generated map of the US coloring different states based on a set of data.
8 Answers
...
C++ Exceptions questions on rethrow of original exception
...ou will lose derived-class-specific data during the copy-construction of a base class instance.
Simple program to illustrate what's happening:
#include <stdio.h>
struct MyErr {
MyErr() {
printf(" Base default constructor, this=%p\n", this);
}
MyErr(const MyErr& other) {
...
Why can't I have abstract static methods in C#?
...oment, inherit static methods. Imagine this scenario:
public static class Base
{
public static virtual int GetNumber() { return 5; }
}
public static class Child1 : Base
{
public static override int GetNumber() { return 1; }
}
public static class Child2 : Base
{
public static override ...
Format bytes to kilobytes, megabytes, gigabytes
Scenario: the size of various files are stored in a database as bytes. What's the best way to format this size info to kilobytes, megabytes and gigabytes? For instance I have an MP3 that Ubuntu displays as "5.2 MB (5445632 bytes)". How would I display this on a web page as "5.2 MB" AND have files le...
Best way to create unique token in Rails?
...when using Ruby 1.9 and ActiveRecord):
class ModelName < ActiveRecord::Base
before_create :generate_token
protected
def generate_token
self.token = loop do
random_token = SecureRandom.urlsafe_base64(nil, false)
break random_token unless ModelName.exists?(token: random_to...
Role-based access control (RBAC) vs. Claims-based access control (CBAC) in ASP.NET MVC
...
I will try to show how you can benefit from Claim Based Access Control in an ASP.NET MVC Context.
When you are using Role based authentication, if you have an action for creating customer and you want that the people who are in 'Sale' role should be able to do that, then yo...
ASP.Net MVC: How to display a byte array image from model
...
Something like this may work...
@{
var base64 = Convert.ToBase64String(Model.ByteArray);
var imgSrc = String.Format("data:image/gif;base64,{0}", base64);
}
<img src="@imgSrc" />
As mentioned in the comments below, please use the above armed with the k...