W3C home > Mailing lists > Public > www-svg@w3.org > May 2001

inconsistency in the Spec?

From: Adam Van Den Hoven <Adam.Hoven@bluezone.net>
Date: Tue, 22 May 2001 12:48:45 -0700
Message-ID: <00BB1956AE40D411B5B60050DA27311F3C61E2@mail1.bluezone.net>
To: "SVG Mailing List (E-mail)" <www-svg@w3.org>
I was looking at section 5.11 of the SVG Spec which says the following:

float currentScale 
	This attribute indicates the current scale factor relative to the
initial view to take into account user "magnification" or "zooming" and
associated "panning" operations, as described under Magnification, zooming
and panning <interact.html>. DOM attributes currentScale and
currentTranslate are equivalent to the 2x3 matrix [a b c d e f] =
[currentScale 0 0 currentScale currentTranslate.x currentTranslate.y]. If
"magnification" is enabled (i.e., zoomAndPan="magnify"), then the effect is
as if an extra transformation were placed at the outermost level on the SVG
document fragment (i.e., outside the outermost 'svg' <struct.html> element).
If "zooming" is enabled (i.e., zoomAndPan="zoom"), then the effect is as if
an extra 'g' <struct.html> element enclosed all of the children and that 'g'
<struct.html> element specified a transformation to achieve the desired
zooming effect. 

if you go to the Manification, zooming and panning section (16.7) there is
no mention of zoomAndPan="zoom" nor about any difference between zooming and
panning. Also, the difference between magnifying and zooming seems to be
more than a little obscure.



Adam van den Hoven
Internet Software Developer
Blue Zone
tel. 604 685 4310 ext. 280
fax 604 685 4391

> Blue Zone makes you interactive. http://www.bluezone.net/
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Received on Tuesday, 22 May 2001 16:00:12 GMT

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