| Quantitative | Ordinal | Nominal |
|---|---|---|
| Position | Position | Position |
| Length | Density | Hue |
| Angle | Saturation | Texture |
| Slope | Hue | Connection |
| Area | Texture | Containment |
| Volume | Connection | Density |
| Density | Containment | Saturation |
| Saturation | Length | Shape |
| Hue | Angle | Length |
| Slope | Angle | |
| Area | Slope | |
| Volume | Area | |
| Volume |