Convenience

Leak-proof

Color continuity

Anti-aliasing

Special

effect

Levin et al. (2004)

★★

★

★★

×

×

Qu et al. (2006)

★★★

★★★★

★★★★

×

√

Sýkora et al. (2009)

★★★★★

★★★★

★★★★

√

×