DXF AutoCAD Drawing Exchange Format. Edge, Topology Level 0 VPF term for a string. Edge, Topology Level 3 VPF term for a complete chain. EPS Encapsulated Postscript format. Extended elements may be defined by a data set producer or a user community.
Extended elements are elements outside the Standard, but needed by the data set producer.
If extended elements Face, Topology Level 3 VPF term for a GT-polygon composed of rings. No ring, inner or outer, shall be collinear with or intersect any other ring of the same G-polygon. A string composed of pairs of longitude and latitude coordinates that define a closed non-intersecting boundary. A scalar consisting of a set of ordered pairs of floating-point numbers, separated by commas, in which the first number in each pair is the longitude of a point and the second is the latitude of the point. Longitude and latitude are specified in decimal degrees with north latitudes positive and south negative, east longitude positive and west negative.