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# hvf

Render Hierarchical Variable Font (HVF) glyph outlines, and support font editors and related tools.

## Overview

The `hvf` library provides C and Swift interfaces. The C interface supports rendering `hvgl` and `hvpm` tables in existing fonts.

The Swift interface adds support for the following:

- Writing a custom loader to render HVF glyphs from other sources, such as a database in a font editor.
- Generating data needed to build an `hvgl` table, using the same code as the custom loader.
- Interactively modifying part appearances and data, such as in a font editor.

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