MGCL [XPDP[Xm[g 2018/11/20

1. MGEReal
  PjOperator>>(MGEReal), operator<<(MGEReal)p~includesɓB
@Qjincludes()֐𖳌ԂɑΉB
@Rjoperator>>MGEReal,<<ɐEW덷܂܂߁Aoperator|=(MGEReal)lԂȂoOC
2. sangleSigned2D֐isine-angle߂jǉ. ߂l𕄍tƂisangle()͏ɐljB

3. Tessellation֐SʓIł͂Ȃ啝ȉǂB܂ŁAX́Aɐ؂蔲̃Ci[[vFacêƂʂ̂قڏCB
@PjNXmgTL2LPlinesV݂A]̃O[o֐tessellate2n2n, tessellate3nnn, tessellate_nnnnzAp~B
@Qj-22܂ł̒lconcavity̍l𓱓concavity, convex𐔒lBconcavity=.-2:most convex, 0:flat, 2:most concave
4. glutOBvWFNgɂ͊܂܂ꂽ܂B