Markup Erratum Report

Hello,

I'm emailing on account of what I believe to be a markup error I discovered
in the SVG specification, in the ArcImplementationNotes
<http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes> section,
and under *F.6.3 Parameterization alternatives.*

It presents the matrix equation, and in the variable definitions, it states

θ (*theta*) is the angle from the x-axis of the current coordinate system
> to the x-axis of the ellipse.


I am fairly positive this is erroneous in that it isn't θ (*theta*), but
rather φ (*phi*), since the apparent goal of φ (*phi*) in the equation is
to rotate the ellipse equation by the given angle, thus representing the
angular difference between the x-axes, as stated, whereas θ (*theta*) is
the value outlining the ellipse.

- CodeSmith

Received on Thursday, 23 October 2014 20:50:03 UTC