Hi Doug, > I would like to assure that a 1000x1000 bitmap, say, occupies exactly > 1000x1000 pixels on the display, regardless of the physical size of a > pixel.
What's the output device? There's the .H and .V number registers which give the output device's resolution in basic units. But a bigger problem might be the route from output device to eyeball. If it's PDF to X Windows, say, then many installations now treat a screen as 96 DPI. An easy test is using a PDF viewer to show a piece of ‘paper’ of known size at 100% and measuring its width on screen. http://wok.oblomov.eu/tecnologia/mixed-dpi-x11/ covers the mess. -- Cheers, Ralph.
