Re: Agawa Canyon Expedition - map help please -- Fortune Bay Expeditionary Team Campfire

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Subject: Re: Agawa Canyon Expedition - map help please

Author:
Pathfinder

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Date Posted: 12:03:23 08/23/04 Mon
In reply to: Ken 's message, "Re: Agawa Canyon Expedition - map help please" on 16:34:18 08/19/04 Thu

Alright, so the projection is WGS84.

>We're talking at slightly different angles here
>Pathfinder. The calibration of the map image is used
>by the GIS software to figure out where to put things
>like the GPS data. To calibrate properly you do, as
>you say, need to know the projection of the map and
>such like. GeoTIFF files have this info stored
>directly in the file. I can't just cut and paste a DRG
>into a mapping program and then have it instantly
>work. That is where the calibration comes in. Perhaps
>we're using different terms to talk about the same
>thing. That wouldn't surprise me.
>
>So as for what projection. I don't right now really
>care. a UTM grid projection (traverse mercator) of the
>area is fine - let's see that was UTM zone 16T which
>has standard longitude of -87° and standard latitude
>of +44°.) Map datum should be WGS84 since that's wht
>my GPS data is in.

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