Re: SVG1.1 Geographic Coordinate System from Randy George on 2002-01-10 (www-svg@w3.org from January 2002)

From: Randy George <rkgeorge@cadmaps.com>
Date: Thu, 10 Jan 2002 09:28:16 -0700
To: <www-svg@w3.org>
Message-ID: <EDEALPGHFMCHEHEOHCKEEEGBCJAA.rkgeorge@cadmaps.com>

   Referencing the GML for a georeferenced coordinate system provides a
standard way for identifying the coordinate system used for SVG coordinates.
However, the SVG cartesian plane is inverted and there is more than one way
to correct the view. Using a viewport mapping seemed to introduce problems
with text orientation so I believe most users of SVG for mapping are simply
inverting the y axis. Does the GML CRS have a standard method of identifying
an inverted y axis on a well known coordinate system such as "UTM-13 NAD83
feet" ?


Randy George
www.academy-computing.com/svgweb
SVG for Mapping!

Received on Thursday, 10 January 2002 11:35:13 UTC