| 摘要 |
A modified Euler diagram may use multiple convex shapes to display sets or members of sets. In one embodiment, a compact Euler diagram may represent members once, with the sets split into separate regions that may form a containment hierarchy over the members. The split set regions may be drawn with simple convex shapes and joined with connecting lines, which may be concave shapes. In another embodiment, each set may be illustrated with a single convex shape and the members of more than one set may be duplicated. In such an embodiment, the members may be drawn with convex shapes and joined with connectors, which may be concave shapes. The modified Euler diagrams may be deterministically created by grouping the elements into sets, organizing the sets by size, placing elements in the sets, and creating connections between the elements using a set of constraints. |
