VarGlyphViewer
A tool to visualize and highlight the differences between the current glyph and the same glyph in the default font.
- get default…
- Open a dialog to select the source to check against the current font.
- reload
- Reload the selected source from disk (in case it has changed).
- show distance
- Show x and/or y distance of each point in relation to the default.
- selection only
- Show the distance visualization only for selected points.
- delta values
- Display average delta values.
- threshold
- Adjust the threshold value between green and red values.
- display
- Turn the visualisation on/off.
Display
Color code
Delta vectors
| blue | neither x nor y values changing |
| red | only x or y value changing |
| green | both x and y values changing |
Delta values
| blue | no change |
| red | change beyond threshold |
| green | change below threshold |
Average delta values
Average delta values allow us to quantify the variation between two glyphs. This is specially useful when analysing tuning glyphs.
Values are expressed in average delta units per item.
The total average delta value (Σ) is computed as the sum of all specific average delta values (points, anchors, components, width), divided by the total item count.
| Σ | total average delta values / total item count |
| P | total point deltas / point count |
| A | total anchor deltas / anchor count |
| C | total component deltas / component count |
| W | width delta |