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Re: Ruler Y Axis

On Mon, 3 Jan 2005, Aaron Dalton wrote:

> Date: Mon, 03 Jan 2005 13:35:08 -0700
> From: Aaron Dalton <aaron daltons ca>
> Reply-To: discussions about usage and development of dia
>     <dia-list gnome org>
> To: dia-list gnome org
> Subject: Ruler Y Axis
> My question is more of an aesthetic one.  Standard mathematical graphs
> *increase* X and Y values as you move up and to the right of the origin.
>   In Dia canvases, however, the Y values on the ruler *decrease* as you
> go up from 0,0.  Is this an intentional feature?  If so, I'd be
> interested to know what its purpose is.

If I understand what you are saying it can be rephrased thusly:
why is the origin 0,0 point on the top left rather than the bottom right?

I dont know the specifics of this but it seems to be a standard
convention in graphics software and it is definately part of the SVG
specification.  The GIMP does it this why which is probably a large part
of why Dia does.  Sodipodi went out of its way to do things as you have
suggested, a change I believe Inkscape has/will change so as to
more easily conform with the SVG specifications.

Hope that helps.

- Alan Horkan

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