In case anyone is interested, I've been trying to use turf.js on both Mapbox and Mapzen vector tiles, and I've learned a few things I wish I'd known going in.
This thing I've been working on for a month or so here and there, to make maps like this:
Bill Morris wboykinm
wboykinm
/ turf_and_vts.md
Last active
April 15, 2024 14:57
Learnings while geoprocessing vector tiles with turf.js
wboykinm
/ histogram.sql
Created
October 12, 2015 13:07
— forked from wolever/histogram.sql
Functions to create and draw histograms with PostgreSQL.
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| -- Functions to create and draw histograms with PostgreSQL. | |
| -- psql> select * from show_histogram((select histogram(length(email), 0, 32, 6) FROM auth_user limit 100)); | |
| -- bucket | range | count | bar | cumbar | cumsum | cumpct | |
| -- --------+-------------------------------------+-------+--------------------------------+--------------------------------+--------+------------------------ | |
| -- 0 | [0,5.33333333333333) | 1 | | | 1 | 0.00273224043715846995 | |
| -- 1 | [5.33333333333333,10.6666666666667) | 5 | = | | 6 | 0.01639344262295081967 | |
| -- 2 | [10.6666666666667,16) | 149 | ============================== | ============= | 155 | 0.42349726775956284153 | |
| -- 3 | [16,21.3333333333333) | 145 | ========= |
wboykinm
/ falsehoods.md
Last active
February 1, 2024 15:52
Falsehoods programmers believe about addresses - by Michael Tandy
This is an anchor-linked version of the excellent, amazing original opus magnum by Michael Tandy.
Counterexample: Royal Opera House, Covent Garden, London, WC2E 9DD, United Kingdom.
Counterexample: 1A Egmont Road, Middlesbrough, TS4 2HT
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| <?php | |
| /** | |
| * PHP GeoJSON Constructor, adpated from https://github.com/bmcbride/PHP-Database-GeoJSON | |
| */ | |
| # Connect to MySQL database | |
| $conn = new PDO('mysql:host=localhost;dbname=mydatabase','myusername','mypassword'); | |
| # However the User's Query will be passed to the DB: | |
| $sql = 'SELECT * from GDA_database WHERE user_query = whatever'; |
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| // Adapted from CRS: http://www.surveysystem.com/sscalc.htm | |
| conInt = 0; | |
| conLev=1; | |
| zVal=1.96; | |
| zValC=3.8416; | |
| ss=0; | |
| pop=0; | |
| perc=0; | |
| pf = 0; |
wboykinm
/ how_to_internet.md
Last active
September 5, 2023 01:38
Instructions for getting a [mostly] static website onto a custom domain, with https encryption, for [mostly] free. I'm finally writing this down after getting stuck on step 10 way too many times. Godspeed.
- Purchase the top-level domain - gandi.net is my current preferred registrar. Hopefully this will be the only cash you drop in this process.
- Create a new public repository on github.
- Clone the new repo locally and create your site content package, even starting with something as simple as a standalone
index.html. - Add a file called
CNAMEto the repo, containing only a single line with your just-purchased domain in it. e.g.domain.com. - Commit the content to github.
- In the settings --> pages menu of the repository on github.com, point to the correct branch, and enter the domain under "Cu
wboykinm
/ index.html
Created
November 10, 2013 04:09
Leaflet + D3 + Vector Tiles (via Nelson Minar)
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>D3 GeoJSON in Leaflet</title> | |
| <link href='http://api.tiles.mapbox.com/mapbox.js/v1.4.0/mapbox.css' rel='stylesheet' /> | |
| <!--[if lte IE 8]> | |
| <link href='http://api.tiles.mapbox.com/mapbox.js/v1.4.0/mapbox.ie.css' rel='stylesheet'> | |
| <![endif]--><style> | |
| html, body, #map { height: 100%;width:100%; background:#020B26;position:absolute;} | |
| body { padding: 0; margin: 0; } | |
| path { stroke-linejoin; round; stroke-linecap: round; fill: none} |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src='http://api.tiles.mapbox.com/mapbox.js/v0.6.7/mapbox.js'></script> | |
| <link href='http://api.tiles.mapbox.com/mapbox.js/v0.6.7/mapbox.css' rel='stylesheet' /> | |
| <script src='http://geosprocket.com/assets/bootstrap/js/bootstrap.min.js'></script> | |
| <link href='http://geosprocket.com/assets/bootstrap/css/bootstrap-spruce.css' rel='stylesheet' /> | |
| <style> | |
| body { margin:0; padding:0; } | |
| #map { position:absolute; top:0; bottom:0; width:100%; } |
Fiddling with Tristen's UI theme ideas for a revamped mapbox.js, repo'd here
wboykinm
/ compton.md
Last active
December 16, 2022 21:15
Generating some points to approximate streetlight locations in Compton, L.A.
Loose homage to Kendrick Lamar, strong shouts to Snoop, Dre, Mary J., and the map underneath the 2022 Superbowl Halftime Show, and big respect to the L.A. county streetlight spacing guidelines.
(Yes, I know this isn't Compton. Bear with me here.)
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