Re: [Inkscape-user] ruler units

On 5/24/05, Aaron Digulla <digulla@...310...> wrote:

1. If these are "user units", where can I change them?

It's the term used by the SVG spec. You are not supposed to redefine these units. In all SVG renderers, a user unit is equal to 1 screen pixel at 100% zoom. In latest Inkscape (don't know which version you use) they are the default everywhere unless you change that.

2. Why 90? What's bad with PostScript points? (Apart from the fact that

they are 72.27pt/inch in TeX and 1/72 inch in PostScript).

This follows from the above. We assume the screen resolution to be 90dpi and therefore there are 90 user units to the inch. See

http://www.w3.org/TR/SVG/coords.html#Units

for why it is so.