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User talk:Yosemite

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Hey, Yosemite! Welcome to Wikitravel. Please take a sec to look at our copyleft and policies and guidelines, but feel free to plunge forward and edit some pages. If you need help, check out Wikitravel:Help, and if you need some info not on there, post a message in the travellers' pub. I expect a good article about Histogram Valley. -- Evan 22:22, 7 Aug 2003 (PDT)

Hey Yo'- Great looking todo list. Glad to have you aboard... Majnoona

Hi Yosemite! I just visited your part of the world and I started a Yosemite article. Care to help it out? KJ 04:29, 9 Sep 2003 (PDT)

Hey, man: so, I got a start on Black Rock City, but it still needs a lot of work. Do you have a good photo of The Man that would go well with this article? -- Evan 12:00, 7 Oct 2003 (PDT)

Excellent! Great picture of the Black Rock City Taco Bell franchise! -- it's in the article now. -- Evan 07:35, 9 Oct 2003 (PDT)

Could you send me an email? I'd like to show you the code I've written. -phma

I've been looking over your code. What is UTM? Why is the eccentricity squared? I'd like to modify my program to use ellipsoids; do you know the proper method to project a map from an ellipsoid? -phma 09:32, 20 Feb 2004 (EST)

Sorry for the delayed reply. I've been traveling/busy. In case you haven't found out yourself yet, UTM is a tranverse mercator projection that was originally used by the US Army. It's useful if you are doing small scale mapping (such as cities/counties.) I mainly use it for the mapping app I wrote because it's fairly standard and conveniently uses nice cartesian coordinates.
I've been doing a bit of projection research lately and picked up one of John Snyder's books on projections, and I think that the proj.4 program is your best bet for doing a lot of projections from a single source of data. It runs pretty simply in most cases. Just feed in a bunch of lat/long coordinates and it spits out some cartesian coordinates that you can plot. I'm currently working on a python wrapper for proj.4 so that it can be used easily from that language. Also I'm working on a better set of tools to generate maps from the TIGERLine data. I need a few more hours in the day.  :) -Yosemite 02:51, 13 Mar 2004 (EST)
I'm in the process of putting my program on the arch server. Once I do that, I'll copy the ellipsoid code from your program and modify the azimuthal projection. I don't need a lot of projections, just azimuthal, and the way I'll do that is find the plane tangent to the center of the map and project onto that. This will be quite accurate enough unless you try to plot the antipode. -phma 22:17, 13 Mar 2004 (EST)


Hey Sam! Thanks for the vote of confidence on the Paris maps. I'm really looking forward to your upcoming map contributions myself. -- Mark 19:33, 10 Dec 2004 (EST)