My own paint tool [BrushTone] has braille display support, though by neccessity the exact level of detail is somewhat abstracted and you can only view one horizontal row at a time based on the cursors position. It also includes a few other components like [Peter Meijers] image to sound rendering for getting a general view of a particular region, and tones for the RGBA values of individual pixels. I've come across a few other tools like [TactileView] that seems to focus a bit more on the braille aspect, [SVGDraw01], and [BlindPaint].

Generally you can approach graphics in a mathematical way, starting with the window resolution and geometrically placing objects based on their dimensions within the bounds of the window. For example a window thats 640x480 with 32x32 tiles can fit 300 tiles, 20 per horizontal row with 15 rows.

Hmm. I know you can calculate graphs with TactileView, there are a variety of tutorials like [this] on youtube for it, but i'm not sure if it can handle Geomatric Graphs specifically. The best case scenario would probably be processing the Geometric Graph and outputting it through their TactiPad so you can feel it physically on the sheet, or printing it out through a braille printer, although all of that equipment is rather expensive.

Another possible option would be to 3D print it as a tactile surface, though there is currently no accessible 3D CAD/design tools and prints can be time intensive depending. If multi-row braille displays were available on the market it would be a different matter, but all of them are either in the prototype stage or vapourware at this point.

Well [OpenSCAD] which has a braille plugin and [TinkerCAD] for online editing were recommended in an article for accessible 3D printing, though [this] same article also went on to say that there is no CAD software accessible to the blind.