-------- Original Message --------
Subject: Re: MAPS-L: Digital shaded relief map of southern India and
Sri Lanka?
Date: Thu, 27 Apr 2006 10:01:44 -0500
From: Nat Case <[log in to unmask]>
To: Maps, Air Photo & Geospatial Systems Forum <[log in to unmask]>
Adella:
Of course Plate-Caree is a projection. But for purposes of many GIS
applications, material presented this way is available for conversion
to a more graphically sophisticated projection-it is essentially
"raw", with no projection information included in the file in
question. Thus Plate-Caree is a projection in the same sense zero is
a number. Both of Avenza's main products work this way, and ArcView
(at least the older version I use) defaults to this when no
projection is specified. Indeed I just finished a process of
"de-projecting" data from one of our maps - moving it from Minnesota
State Plane (Lambert Conformal) to Plate-Caree - so I could export
point lat-long coordinates to for a database. As a cartographer I
tend to work from a functional standpoint rather than theoretical,
and for me Plate-Caree is functional "ground zero," the graphic
display of information before a real (or integer?) projection is
applied to it.
Nat Case
At 7:51 AM -0500 4/27/06, Angie Cope, AGSL wrote:
>-------- Original Message --------
>Subject: RE: MAPS-L: Digital shaded relief map of southern India and
>Sri Lanka?
>Date: Thu, 27 Apr 2006 11:21:15 +1000
>From: Adella Edwards <[log in to unmask]>
>To: 'Maps, Air Photo & Geospatial Systems Forum' <[log in to unmask]>
>
>
>If a map is Plate-Caree it IS projected... I assume you mean it is in
>geographic coordinates.
>
>Adella Edwards
>Cartography Centre
>rooms 216/217
>School of Tropical Environment Studies and Geography,
>James Cook University,
>Townsville, 4811
>ph: 07 4781 5681
>fx: 07 4781 4020
>-----Original Message-----
>From: Maps, Air Photo & Geospatial Systems Forum
>[mailto:[log in to unmask]] On Behalf Of Angie Cope, AGSL
>Sent: Thursday, 27 April 2006 2:26 AM
>To: [log in to unmask]
>Subject: MAPS-L: Digital shaded relief map of southern India and Sri Lanka?
>
>-------- Original Message --------
>Subject: Re: MAPS-L: Digital shaded relief map of southern India and
>Sri Lanka?
>Date: Wed, 26 Apr 2006 11:04:22 -0500
>From: Nat Case <[log in to unmask]>
>To: Maps, Air Photo & Geospatial Systems Forum <[log in to unmask]>
>
>
>
>
>
>Two thoughts:
>
>1. If the map you showed is available in PDF, you can open it in
>Illustrator and select the imagery layer separately. The resolution
>may be too low for you , though.
>
>2. Natural Earth, by Tom Patterson:
>http://www.shadedrelief.com/natural/. It is unprojected
>(Plate-Caree), but can be reprojected using GIS software of various
>types.
>
>Nat Case
>Hedberg Maps
>
>At 8:21 AM -0500 4/26/06, Angie Cope, AGSL wrote:
>>-------- Original Message --------
>>Subject: Digital shaded relief map of southern India and Sri Lanka?
>>Date: Tue, 25 Apr 2006 15:55:51 -0600
>>From: naomi heiser <[log in to unmask]>
>>To: <[log in to unmask]>
>>
>>
>>-
>>Hello -
>>We have a patron who is looking for a digital image for a book he is
>>publishing. He would like a map of southern India and Sri Lanka that only
>>shows shaded relief (mountains and rivers obvious), with good contrast,
>>since the image is to be published in grayscale. For an example, he showed
>>us a basic CIA shaded relief map, but did not want to fool with removing
>>features and words.
>>
>>If anyone knows of a particular product or publication that fits the bill,
>>please let me know. It can be a software package - the patron is willing
>to
>>purchase something.
>>
>>Thanks,
>>
>>Naomi Heiser
>>Jerry Crail Johnson Earth Sciences & Map Library
>>CB 184
>>University of Colorado
>>Boulder, CO 80309
>>303-492-4966
>>[log in to unmask]
>>http://ucblibraries.colorado.edu/map/
>
>
>--
>Nat Case
>Hedberg Maps, Inc
>
>
>--
--
Nat Case
Hedberg Maps, Inc
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