Hi,

```
I'm about to implement a TeX interpreter for the graphical backend
```

to GNU Octave (http://www.octave.org ). The

rendering is in OpenGL context.

```
As I understand it, matplotlib doesn't use OpenGL at all?
```

```
Not at present -- though various people are working on it.
```

```
Could you tell me about the design and work flow for the Tex/Latex
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interpreter and rendering system for TeX/Latex fonts?

```
There are two.� One is a Python reimplementation of part of the TeX
```

math algorithms called “mathtext” (I am the original author).� It

uses Truetype versions of either the Computer Modern fonts or the

STIX fonts.� It is able to produce either raster images or data that

is then used by the matplotlib backends to generate PS, PDF, SVG

etc.

```
The other approach is used when "text.usetex" is True.� It calls out
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to a real “tex” interpreter and then interprets the DVI it produces

to convert it into a form the matplotlib backends can use.� Since I

didn’t write this code, I’m not as familiar with the details.

```
In the case of OpenGL, since you only want images anyway, you may be
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best off using a tool like dvipng along with the preview LaTeX

package, if having “real” LaTeX as a dependency is acceptable.

```
Mike
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## ···

On 08/26/2011 02:32 AM, Ole Jacob Hagen wrote: