mailing-list for TeXmacs Users

[Werner Hug <address@hidden>]

There were several theses (spectroscopy) written with Texmacs in my 
group. Text and formulae were a dream to work with, but figures tended 
to present problems with speed. As long as their number was small, this 
could be handled, but now it appears to have become unsurmountable in a 
thesis which contains typically more than a dozen figures in individual 
chapters.

Most of these figures are black and white line spectra, so they really 
represent small files only of typically 15-50 KB as most is white 
background, but in order for keeping resolution for later printing and 
pdf export, we need frames of about 3000x3000 pixels. When a document 
with even a few such 20 KB pictures is opened, or once finally opened, 
scrolled over parts which contains pictures, Texmacs resizes the picture 
frames. This seem to take copious amounts of time, far more so than 
opening the same pictures with a standard picture viewer, or a graphics 
program.

The speed problem disappears or is greatly reduced by a reduction of the 
frame width to below 560 pixels, as Texmacs then no longer resizes the 
frames, but this leads to a wholy unacceptable print (and also viewing) 
quality.

We have tried to find information on the problem in the documentation on 
Texmacs but so far to no avail, and we have tried various picture 
formats (png, jpg, ps, pdf, svg), but they do not make a decisive 
difference.

Is there a solution to this problem? It is rather catastrophic for the 
present work.

Kind thanks for any help,

Werner Hug