- From: Stefan Haustein <sh@kobjects.org>
- Date: Mon, 15 Jan 2007 16:36:32 +0100
Hi, could somebody please clarify whether the unusual parameter order is intended -- or simply a bug in the specification? Best regards, Stefan ????(KUROSAWA, Takeshi) wrote: > Dear WHATWG, > > Web Application 1.0 adds the transform() and the setTransform() to the > canvas 2d context. > The conversion of the arguments of these methods to the matrices is > described in the section 3.14.6.1.2. > >> The transform(m11, m12, m21, m22, dx, dy) method must multiply the >> current transformation matrix with the matrix described by: >> m11 m12 dx >> m21 m22 dy >> 0 0 1 >> >> The setTransform(m11, m12, m21, m22, dx, dy) method... > - http://www.whatwg.org/specs/web-apps/current-work/#transform > > However, this is repugnant. And it isn't compatible with many graphics > systems. So the matrix should be > > m11 m21 dx > m12 m22 dy ... (b) > 0 0 1 > > In addtion, the rhino-canvas implements both methods. It uses the matrix > (b). > http://rhino-canvas.sourceforge.net/ > > regards.
Received on Monday, 15 January 2007 07:36:32 UTC