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Below the Surface - information page This
work explores the use of links and image maps to zoom in on an area
of a picture, in a similar way to a photographer using a zoom lens.
An image map is constructed with a co-ordinate system similar to the
degrees of latitude and longitude of paper maps of the earth's surface.
Degrees of latitude and longitude are replaced by pixel numbers measured
from left to right (X co-ordinates) and top to bottom (Y co-ordinates).
The diagram below indicates how co-ordinates are used to define areas
of pixels known as 'hot spots'. In this work 4 co-ordinates are
used to create rectangular hot spots which act as links to enlarged
close-up images of the original picture when the mouse is clicked on
them. |
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