Re: pngcairo performance on Windows

[Allin C. <cot...@wf...>]

On Tue, 3 Nov 2009, Tatsuro MATSUOKA wrote:

> Hello Allin Cottrell and Ethan Merritt
>
> I have tested for both gnuplot built on MinGW and Cygwin-1.7.
> I understand what you would like to say to see the differnce in
> both png files.
>
> http://www.geocities.jp/tmgpltwin/Files/Files.html
>
> 0024 deffont2TMwin.png, 14,992 bytes, 2009-11-03
> 0025 deffont2TMcyg.png, 13,197 bytes, 2009-11-03

Thanks for making these.

> deffont2TMwin.png is similar to  deffont2.png on your web.

Yes, missing pixels at the bottom of the title.

> For a png file produced by the gnuplot for cygwin-1.7 looks fine.

Hmm, that's interesting.

> As you pointed out, this problem is intrisic to pngcairo on at least MinGW.
> I do not know how gnuplot built by MSVC will give results.
>
> For pdfcairo, pdf outputs are fine for both gnuplot on MinGW and
> on Cygwin-1.7

Yes, I agree, no problem with PDF output.

I have an idea of what might help pngcairo/mingw, but I need to do
some testing on Windows to make sure I know what I'm taking about.

Allin Cottrell