VIEWING THE
BOTTOM PHOTOGRAPHS
The bottom photographs
have been archived on this CD-ROM as JPEG images and may be viewed in a
variety of image-editing software programs (i.e. Adobe Photoshop, Corel
PhotoPaint). Access to the photos have been provided via a
tabular listing (either an HTML
formatted or Microsoft Excel spreadsheet), an index map, geographic mapping tools, or as individual JPEG images.
1.
HTML formatted table
The
stations table
is organized by station number (Field_ID) and contains the location
and links to thumbnails of the bottom photographs taken at each station.
This is an HTML version of the Microsoft
Excel spreadsheet also archived on this CD-ROM. From
the HTML formatted table, clicking on the Field_ID will
display a new HTML page that contains a thumbnail of the bottom photo
and links to a larger, browse photograph and a 300 dpi, full-resolution
version of the image.
PLEASE
NOTE that even though links to the full-resolution images
have been made from the HTML formatted pages, viewing the full
resolution image in a web browser may not be possible. This is due
to memory configurations of some browsers, and the full-resolution images
may be too large for those browsers to handle. The result would be
an image that appears to "fall apart" as you scroll through
the browser.
2.
Excel spread sheet
This
version of the stations
table is a Microsoft Excel spreadsheet and may be found
in the tables directory located at the top-level of this
CD-ROM. The tabular listing is organized by station number (Field_ID)
and contains the location and links to thumbnails of the bottom photographs
taken at each station. Clicking on the Field_ID
will display an HTML page that contains a thumbnail of the bottom photo
and links to a larger browser photograph and a 300 dpi, full resolution
version of the image.
3.
Index Map
Locations
of the bottom photographs have been plotted on a color encoded shaded
relief image of the U.S.
Atlantic East Coast. The East Coast area has been
divided into four sub-areas to provide enough detail to allow the user
to select the desired bottom photograph from the hot linked image.
When selected, a new browser window will be open with the HTML page
that contains a thumbnail of the bottom photo and links to a larger,
browse photograph and a 300 dpi full resolution version of the image.
Unfortunately
the plotted locations within the map areas were too close to include the
Field_ID as labels as they would have been overwritten or simply not
included due to their close proximity. This means the only visual
clue when selecting a station is to check the name of the hotlink
as it is displayed in the bottom frame of the browser window.
4.
Using ArcView 3.1 or greater as a Geographic Mapping Tool
This
projects uses Environmental Systems Research Institute's (ESRI)
ArcView software as it's Geographic Information System (GIS) mapping
tool. A customized ArcView project file, photos.apr,
is included and may be found at the top level directory of this CD-ROM.
If you have ArcView version 3.1 or later on a Windows 98/98/2000/NT
system, you should be able to use the project file. The project
file is pre-built to allow the user a quick means of opening and accessing
the GIS data layers.
To
access the project file, exit from your browser,
start ArcView and open the project file. This project file provides an
unprojected geographic display and allows the user to view the locations
of the photos over a color encoded shaded relief image of seafloor and
topography for the US East Coast.
The
project file has been customized to provide two additional features.
The first customization was the addition of a Metadata button
( ).
This button provides a quick link to the Metadata for the active layers
from the ArcView project. Selecting the button will display the Metadata
in the computer system's default web browser. Metadata files are
available for all the spatial data contained on this disk and are also
available from the data
listing pages.
The second project customization is the addition of
a free hot link utility provided by Flat World Technologies. (www.spatial-online.com).
This utility allows ArcView to open the user's default web browser
when utilizing the hotlink option. When using the hotlink ( ),
the associated information will be opened in the Windows system default
browser. An HTML page for each Field_ID was created that
includes a thumbnail version of the bottom photo, a link to a larger
browser version and the full-resolution image. For this project,
the associated hotlink information is the HTML page bottom photo(s)
for each station location.
Because of the customized feature built-in to the
project file, this hyperlink association will only work with the CD-ROM. If the project file is moved, the link to locate the computer systems default browser and
the link using the relative pathname to the bottom photograph pages will be broken thereby making this
function inoperable.
To view the bottom photographs in this mode, open the
"photos.apr" project file.
Make sure that the station location
data layer (stations) is selected as the active theme. Then use the hotlink button (lightening bolt) and click on the desired station location marker on the Arcview map coverage. To make sure that this works, the bottom tip of the lightening bolt icon must be positioned over the station marker. This will bring up individual station pages displaying the thumbnails of all of the photos at this station.
If ArcView detects more than one location with in it's search area, the
requested HTML pages will be opened sequentially in the same browser.
To view a larger image of each picture, click on the thumbnail version
of the bottom photograph.
An HTML page for each Field_ID was created that includes a thumbnail
version of the bottom photo, a link to a larger browser version and the
full-resolution image. To assist the user in accessing these pages
from ArcView, the bottom photo locations table has been modified to
include a link to the associated HTML page.
5.
Individual JPEG Images
All bottom photographs are stored as JPEG files in the
data/bphotos directory/folder. Bottom photo file names consist of the
station number followed by the .jpg suffix. The main directory
contains the full-resolution scanned images. For best results, exit from your browser, activate a graphics application, and open the appropriate image
file
Two
sub-directories, thumb/ and browse/ are also located in this directory.
These directories contain reduced versions of the images. These
images are used in the HTML formatting, web browsing and access to the
full resolution images.
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