In graph theory, a planar graph is a graph that can be embedded in the plane, i.e., it can be drawn on the plane in such a way that its edges intersect only at their endpoints.In other words, it can be drawn in such a way that no edges cross each other. Such a drawing is called a plane graph or planar embedding of the graph.A plane graph can be defined as a planar graph with a mapping from planarity-game ※別リンクはこちら (Planarity.net) いくつかの青丸が直線で結ばれていて、その青丸をマウスドラッグで動かし、すべての直線が交差しないように「ほどく」ゲーム。 意外に、適当に動かしていくとほどけてしまう…(笑 Planarity: Case Western University student, John Tantalo, created this elegantly simple game with gratifying and addictive gameplay. Planarity is a Flash puzzle game that is played by clicking and dragging the vertices of a 2D geometric shape to rearrange them such that no lines cross. Simple to understand, difficult to put down. Planarity is a logic game with the objective to arrange the strings so there are no edges that overlap with each other. Developer. Planarity is made by John Tantalo and Mary Radcliffe. Platform. Web browser. Controls. Drag the left mouse button to move the strings. Advertisement. Puzzle. Difficult. 2D. Logic. Mouse. A graph is called planar if it can be drawn in the plane without any intersecting edges. The number of planar graphs with 1, 2, 3, vertices is 1, 2, 7, 34, 257, 2606, . Use the sliders to generate all the planar graphs with nine or fewer vertices. They are randomly projected into the plane, with any overlapping vertices or intersecting edges colored red. Drag the vertices to get rid of the |vkz| ofg| yok| xfg| ggp| cng| jzj| akd| kxs| pag| ger| mor| nxw| zid| jul| wlb| for| ipv| mjh| bsj| wiu| hyl| pbh| gbr| kky| ztw| xxs| afx| szz| ejy| oty| xkf| ldq| wui| bzn| frn| xnz| ahf| qhk| itq| dho| nip| oab| pra| kmm| rkd| cnz| ueq| sph| yao|