Peter Richardson meetar

Himawari-8 animation tutorial

Here’s how to make animations like this one. It requires intermediate Unix command-line knowledge, to install some tools and to debug if they don’t work. You’ll need these utilities:

curl (or you can translate to wget)
convert and montage, part of ImageMagick
ffmpeg, plus whatever codecs
parallel, for iteration that’s nicer than shell for loops or xargs
run everything in zsh for leading 0s in numerical ranges to work

##How to get started contributing to a Humanitarian OpenStreetMap Team task

###Overview

OpenStreetMap (OSM) is an open-source map of the world that anyone can edit. But like any map, it's incomplete.

The Humanitarian OpenStreetMap Team (HOT) helps organize people to improve the OSM map for crisis areas, mostly so aid workers can find their way around and make decisions about undermapped places. The data in these crisis areas is often very poor, or completely non-existent. Therefore any contribution you make at all will be a vast improvement, and could materially help people who are on the ground right now, looking at this data as you edit it, and deciding where to go and who to help.

There are many HOT tasks active at once. As of August 2014, the highest-priority tasks are Gaza and areas affected by the West African Ebola outbreak.

	# Author @patriciogv - 2015

	cameras:
	camera1:
	type: perspective
	styles:
	space-tile:
	shaders:
	blocks:
	global: \|

	# include: transit.yaml

	scene:
	background:
	color: red

	sources:
	mapzen:
	type: TopoJSON
	url: http://vector.mapzen.com/osm/all/{z}/{x}/{y}.topojson?api_key=vector-tiles-HqUVidw

	cameras:
	perspective:
	type: perspective
	vanishing_point: [0, -500]
	lights:
	directional1:
	type: directional
	direction: [.5, .1, -1]
	diffuse: .2
	ambient: 0.8

	Building has already been converted: output/BLDG_000300090026bde5.obj
	Building has already been converted: output/BLDG_0003000e006e7101.obj
	Building has already been converted: output/BLDG_0003000e00094924.obj
	Building has already been converted: output/BLDG_000300000019db81.obj
	Building has already been converted: output/BLDG_00030009004875e1.obj
	Building has already been converted: output/BLDG_000300060008057f.obj
	Building has already been converted: output/BLDG_00030000001a5b8c.obj
	Building has already been converted: output/BLDG_00030009006919e4.obj
	Building has already been converted: output/BLDG_000300000019d1ca.obj
	Building has already been converted: output/BLDG_000300000019cd4d.obj

	# Adapted from Stefan Gustavson's GLSL halftone shader demo for WebGL
	# http://webstaff.itn.liu.se/~stegu/webglshadertutorial/shadertutorial.html

	globals: \|
	uniform float dot_frequency;
	uniform float dot_scale;
	uniform bool true_color;

	// Antialiasing
	float aastep(float threshold, float value) {

	# requires Imagemagick - can be installed with 'brew install Imagemagick'

	convert G0040300.JPG -distort barrel "0.10,-0.32,0" output.jpg


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