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defaults write com.apple.screencapture location ~/Desktop/screenshots

killall SystemUIServer

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D3: Arcs Tweening Animation

view on bl.ocks.org

Click on the grey circles. The green arcs will transition using attr, whereas the red ones will use the attrTween method.

If you have not seen/read Bostock's arc tween example, it's probably the best place to start. Secondly, I've posted up a basic example of drawing static, concentric arcs (gist), which might be helpful before adding on tweens/animations.

Below is some annotated source code from my experience playing with arcs. The biggest issue I came across was understanding the role of the arcTween helper function in relation to attrTween. Unlike attr, which takes a value as its second argument, attrTween requires a helper function, arcTween, which will be called during the intermediary animation ticks. This method was used for my [muniNow project](http

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border: no
height: 600
license: gpl-3.0

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D3: Concentric Arcs

view on bl.ocks.org

The basics of drawing data-driven arcs by using values to determine the arc length. Very stripped down to give beginners an idea of how to draw and color shapes using the accessor functions in D3. For transitions and tweens, check out Bostock's well-annotated example, or my second arc example.

Idea was used for my SF Muni webapp (gist).

al lin, aug. 2013

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Facebook Privacy Settings for those who still want to use Facebook

Only have five minutes? Read the highlights.

Facebook is an advertising platform that builds profiles about its users through their browsing history and sells them.

Google does the same with your search history and YouTube views. On the other hand, Facebook tracks you because a great number of web sites are littered with Facebook's tiny "Share / Like this" button. A user thinks the button is just there to make sharing easier, but it allows Facebook to keep a record every site the user has been on.

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netsh interface portproxy show all
netsh interface portproxy add v4tov4 listenport=8081 listenaddress=127.0.0.1 connectport=8081 connectaddress=[remote-ip]
netsh interface portproxy reset

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#!/usr/bin/env python3
# concurrent_map_test.py

import random
import pendulum
import time
from concurrent import futures
from functools import reduce

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#!/usr/bin/env python3
# parallel_lambda_test.py

import random
import pendulum
import time
from concurrent import futures


# The problem is that the AWS boto3 lambda invoke function is not truly asynchronous

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Listing Available AWS Boto3 Exceptions

alexpareto commented on Jul 22, 2019

An ugly, but workable solution to find out what exceptions are available on each client from the command line:

import boto3
client = boto3.client('sns')  # or whatever client you're using
# client.exceptions.__dict__