springmeyer

# http://aws.amazon.com/amazon-linux-ami/
# http://aws.amazon.com/amazon-linux-ami/faqs/

# Boot up a machine with at least 1.5 to 2 GB Ram

# login
chmod 600 key.pem
ssh -i key.pem ec2-user@ec2...compute.amazonaws.com

# update

springmeyer

// See https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames for more details.

var degrees2meters = function(lon,lat) {
        var x = lon * 20037508.34 / 180;
        var y = Math.log(Math.tan((90 + lat) * Math.PI / 360)) / (Math.PI / 180);
        y = y * 20037508.34 / 180;
        return [x, y]
}

x= -77.035974

springmeyer

# depends on liblas built with laszip and ogr support

mkdir -p laz
cd laz
# download from noaa
if [ ! -f 20040805A_ak302_2_000037_p13.laz ]; then
  wget http://www.csc.noaa.gov/htdata/lidar1_z/geoid12a/data/23/20040805A_ak302_2_000037_p13.laz
  wget http://www.csc.noaa.gov/htdata/lidar1_z/geoid12a/data/23/20040805A_ak302_2_000038_p13.laz
  wget http://www.csc.noaa.gov/htdata/lidar1_z/geoid12a/data/23/20040805A_ak302_2_000039_p13.laz
  wget http://www.csc.noaa.gov/htdata/lidar1_z/geoid12a/data/23/20040805A_ak302_2_000040_p13.laz

springmeyer

# First, clear out any old mapnik or node.js installs that might conflict
sudo apt-get purge libmapnik libmapnik-dev mapnik-utils nodejs

# Also clear out any old ppa's that might conflict
sudo rm /etc/apt/sources.list.d/*mapnik*
sudo rm /etc/apt/sources.list.d/*developmentseed*
sudo rm /etc/apt/sources.list.d/*chris-lea*

# add new ppa's
echo 'yes' | sudo apt-add-repository ppa:chris-lea/node.js

springmeyer

var geojsonStream = require('geojson-stream');
var mapnik = require('mapnik');
var fs = require('fs');

var input = 'test/data/world_merc.shp';
var output = './out.geojson';

// set up geojson output stream
var fileOut = fs.createWriteStream(output);
var geojsonOut = geojsonStream.stringify();

springmeyer

<!-- renders: http://cl.ly/0t3p3D0a320x0I0M2o2S -->

<Map srs="+init=epsg:4269">

    <Style name="terrain">
        <Rule>
          <RasterSymbolizer>
            <!-- http://trac.mapnik.org/wiki/RasterColorizer -->
            <RasterColorizer default-mode="linear">
              <stop color="#35A86E" value = "1003"/>

springmeyer

First convert to sqlite

$ time ogr2ogr -f SQLite out.db 1447454472-debug.geojson 

real    2m31.904s
user    1m37.525s
sys 0m48.042s

springmeyer

Boost backporting

Goal here is to document the steps I took in May 2012 to get Boost 1.49 packages backported and working on Lucid, Maverick, Natty, Oneiric, and Precise.

TODO: look into using ubuntu-dev-tools and backportpackage -s [new_release] -d [old_release] -u [ppa] [package_name]

Install dev tools

sudo apt-get install debhelper devscripts dput git-core python pgpgpg

springmeyer

/*

wget http://dl.dropbox.com/u/342088/10m-us-parks-area.sqlite

ogr2ogr -f SQLite parks.sqlite ParkPly_900913.shp

dane$ ogr2ogr -f SQLite parks.sqlite ~/Documents/MapBox/cache/2976a0c1-10m-us-parks-area/2976a0c1-10m-us-parks-area.shp

*/

springmeyer

'use strict';

var path = require('path');
var fontnik = require('../');
var Benchmark = require('benchmark');

var opensans = path.resolve(__dirname + '/../fonts/open-sans/OpenSans-Regular.ttf');

var suite = new Benchmark.Suite();