On Tue, 2004-05-04 at 14:32, John Hunter wrote:
> I factored matplotlib.text.Text instances and layouts out of the
> backends. Now matplotlib.text.Text does all the layout and passes the
> backends a *string* plus font properties etc. This simplifies the
> text handling on the backends considerably, which only need to know
> how to compute the width and height of an unrotated string. The
> frontend will then do the proper alignment for rotated text.
>
> The benefits of these changes are
>
> * simpler backends
>
> * arbitrary rotated text layout works in agg, gd, and PS
>
> * this lays the ground work for newline spearated text across
> backends since the layout will be on the front and the frontend
> can pass the backends newline split strings to render.
>
> * the backend draw_text method is now is consistent with other
> backend methods, eg draw_lines, draw_rectangles. That is, the
> backends no nothing about matplotlib.Artists
>
> KNOWN BUGS
>
> * vertical text problem in PS to be fixed
>
> This was a pretty comprehensive change so I recommend syncing your CVS
> tree.
>
> Todd, I needed Numeric.Matrix to do the linear algebra for the
> rotations in the text module text. Is there a numarray equivalent
> that we can expose in numerix?
No, not yet. I was thinking about adding a minimal Matrix class to the
numarray half of matplotlib.numerix for now. Then I'll add a more
full-featured Matrix class to numarray-1.0. Does that sound OK?
Todd
>
> Paul, I committed these changes after synching with your new font
> caching and there doesn't appear to be any problem; miraculously CVS
> seems to be working pretty well. I did some additional caching of AFM
> instances in backend_ps. You might want to rerun your ps profile
> script and see if the numbers improve further still.
>
> JDH
>
>
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--
Todd Miller <jm...@st...>
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