I think you do not appreciate just how slow my computer is.
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Dragging a point to the center can be quite painful as I drag, wait, drag, wait, drag--oops, too far!, drag, wait . . . you get the idea. Redraws with scaled tiles can take a few seconds
each on this pig. Something which allows me to center on a point in a single redraw would be a big win. These slow redraws also make the smooth scrolling TF does when using the arrow keys quite painful (that's one of the reasons I was asking for a way to set a precise zoom; a zoom of 1.0 redraws much faster than one of 1.x).
700 Mhz Celeron, BTW, with 384 MB RAM, and onboard Intel Extreme! graphics. 3D is kinda tricky, too, as map areas larger than a certain size won't texture.