- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Wed, 18 Feb 2004 01:36:34 -0600
- To: David Woolley <david@djwhome.demon.co.uk>, www-style@w3.org
David Woolley wrote: > That's not my understanding. My understanding is that a pixel is a real > pixel at typical CRT resolutions (so that bit mapped images align on > pixels) but is based on a arbitrary number of pixels per inch on high > resolution mediums. Not quite arbitrary. "It is recommended that the reference pixel be the visual angle of one pixel on a device with a pixel density of 96dpi and a distance from the reader of an arm's length. For a nominal arm's length of 28 inches, the visual angle is therefore about 0.0213 degrees." So we are in fact taking "96dpi" to be the standard "typical computer display" resolution. -Boris
Received on Wednesday, 18 February 2004 02:36:37 UTC