Exercise Title: Exporting Marine Data Plot
Images from Ocean Data View (ODV)
exercise covers the basic function of saving a graphic image, taking into
account the various "dots per inch" options for picture resolution.
Preliminary Reading (in
OceanTeacher, unless otherwise indicated):
|1. This is approximately what
you should see from the previous exercise. Let's assume you want to
publish this graphic, on a webpage or in a journal, and you need to export
|2. Select FILE > SAVE CANVAS
|3. ODV will automatically
select the folder location, but it will offer you several different image
formats. For webpages, PNG is now the recommended format. For
publications, you should consult the editorial specifications (usually in
the "Instructions to Authors" section).
For now, let's select PNG, and
enter a good filename, as you see here (actually the same as the
Then click SAVE.
|4. This graphics resolution
window opens, asking for the resolution, in DOTS PER INCH (dpi).
NOTE: If you click SCREEN RESOLUTION, you'll get a value calculated
for the current resolution of your own computer screen.
150 dpi is the current offering, so lets just take it by clicking OK.
You can examine this image at 150 dpi and some other representative
|5. We've saved
this same image with different resolutions for you to examine for yourself.
Click on these links to see the saved images in a new browser window:
|6. After you
examine these images, and perhaps also print some of them on your usual
printer (with normal settings), then you can decide what resolution(s)
you'll use in the future for various jobs. The 50 dpi version is
perfect for email attachments because it is small (just 23 kb in this
example), and it's
usually close to the 600 pixel wide limitation often placed on assignment
graphics by instructors.