Image:Portland Streetcar map.svg

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Portland_Streetcar_map.svg‎ (SVG file, nominally 525 × 600 pixels, file size: 7 KB)

[edit] Summary

Description	Geographically correct Portland Streetcar map with stop names Made using official TriMet data that's been made publicly available for Google Transit and others. Data was loaded into a spreadsheet and converted to SVG coordinates using the formulas: =((((Longitude-122)256198)+62691308)/25)+125 -122: Remove whole number (entire map has same longitude integer) x256198: convert to feet (from this calculator) +62691308: Convert to positive numbers /25: Shrink image +125: Shift path over and 583-((((Latitude-45)364641)-180120)/25) 583-: SVG y-axis starts at the top and not the bottom
Source	I created this work entirely by myself.
Date
Author	Jason McHuff (talk)
Permission (Reusing this image)	See below.
Other versions	Also available on Flickr

[edit] Licensing:

I, the copyright holder of this work, hereby publish it under the following licenses:

This file is licensed under the Creative Commons Attribution-ShareAlike license versions 3.0, 2.5, 2.0, and 1.0.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

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	Date/Time	Dimensions	User	Comment
current	09:46, 8 June 2008	525×600 (7 KB)	Jmchuff (Talk \| contribs)	({{Information \|Description=Geographically correct Portland Streetcar map with stop names Made using official TriMet data that's [http://developer.trimet.org/ been made publicly available] for [http://maps.google.com/help/maps/transit/ Google Transit] and others. Data was loaded into a spreadsheet and converted to SVG coordinates using the formulas: =((((Longitude-122)256198)+62691308)/25)+125 -122: Remove whole number (entire map has same longitude integer) 256198: convert to feet (from [http://www.nga.mil/MSISiteContent/StaticFiles/Calculators/degree.html this calculator]) +62691308: Convert to positive numbers /25: Shrink image +125: Shift path over and 583-((((Latitude-45)*364641)-180120)/25) 583-: SVG y-axis starts at the top and not the bottom \|Source=I created this work entirely by myself. \|Date= \|Author=~~~ \|other_versions=[http://www.flickr.com/photos/jmchuff/2560789022/ Also available on Flickr] }})