It is not hard too see how reasonably sized papers, especially scientific articles, can require the use of many hundreds of external images. For this reason, image sharing and recycling is of critical importance. In this context, ``sharing'' refers to the use of one image in more than one place in an article. ``Recycling'' refers to the use of an image left over from a previous run of LaTeX2HTML. Without them, every instance of an image would have to be regenerated every time even the slightest change in the document were made.
All types of images can be shared. These include ``small images'' and figures with or without thumbnails and image maps. Furthermore, most images can also be reused. The only exception are those which are order sensitive, meaning that their content depends upon their location. Examples of order sensitive images are equation and eqnarray environments. This is because their figure numbers are part of the image. Figures and tables with captions, on the other hand, are order insensitive because the figure numbers are handled by HTML and are not part of the image itself.
If you have a document with a great many displayed
equations, you might try using the heqn
style package. Inclusion of this style file has absolutely
no effect on the printed version of the article, but it
does change the way in which LaTeX2HTML translates
displayed equations and equation arrays. It causes the
equation numbers of the equation
environment to be moved outside of the images themselves, so that
order-independent and hence recyclable. Images that result
from the eqnarray
environment are also recyclable, as
long as their equation numbers remain unchanged from the
previous run. An optional
command is recognized in each line of the equation array.
A side-effect of this approach is that equation numbers will
appear on the left side of the page.
The heqn package requires the html package.