Hans, Sorry, I should have read your question more carefully.
Well, there's probably no other options than applying transformations. A simple
example works rather well:
from pyx import *
c = canvas.canvas([trafo.mirror()])
c.stroke(path.line(0, 0, 2, 2))
c.text(1, 1, "Hello, world!", [trafo.mirror()])
c.writePDFfile()
Unfortunately, we don't have a hook to apply the mirror trafo to all text
boxes. You may define you some convenience method or alter the texrunner
instance ... it probably depends on the use-case what is best.
André
Am 11.05.2013 um 22:42 schrieb Hans L:
> I'm not using graphs specifically, I just mean to flip the y orientation of
> general rendering to a canvas.
>
> Hans
>
>
> On Sat, May 11, 2013 at 3:34 PM, André Wobst <[email protected]>
> wrote:
> Hi Hans,
>
> You can use the reverse flag of the axis, see
> http://pyx.sourceforge.net/manual/axis.html#graph.axis.axis.linear, or fix
> the axis range manually and set max to be smaller than min (which sounds a
> little crazy, but it perfectly does the trick as well).
>
> HTH, André
>
> Am 11.05.2013 um 21:55 schrieb Hans L:
>
> > Hello, I am new to using PyX and was wondering if it is possible to invert
> > the Y axis so the top left of page is 0,0 and the y value increases as you
> > go towards the bottom of the page?
> >
> > I experimented with passing a trafo to the canvas constructor:
> > trafo.trafo(matrix=((1, 0), (0, -1)), vector=(0, canvasheight))
> >
> > This seems to work ok for graphics, but then of course all text is upside
> > down.
> > I tried applying a similar y flipping transformation to the textattrs to
> > upright it again, but it did not seem to do anything.
> >
> > Is there any simple solution to this?
> >
> > Thanks,
> > Hans
> >
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> by _ _ _ Dr. André Wobst, Amselweg 22, 85716 Unterschleißheim
> / \ \ / ) [email protected], http://www.wobsta.de/
> / _ \ \/\/ / PyX - High quality PostScript and PDF figures
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--
by _ _ _ Dr. André Wobst, Amselweg 22, 85716 Unterschleißheim
/ \ \ / ) [email protected], http://www.wobsta.de/
/ _ \ \/\/ / PyX - High quality PostScript and PDF figures
(_/ \_)_/\_/ with Python & TeX: visit http://pyx.sourceforge.net/
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