Vector data

Vector data is data with a one-dimensional domain-unit, with at least one feature-attribute and optionally other attribute for the same domain unit.

The feature attribute refers to the coordinates of the vectors.

The GeoDMS supports the following vector types:

  • point: point data, the feature attribute refers to one coordinate per entry.
  • arc: arc data, the feature attribute refers to at least two coordinates per entry.
  • polygon: polygon data, the feature attribute refers to at least three coordinates per entry.

It is important to know the coordinate-system of your vector data, as they may effect the results of functions like arc_length and connect_info.

vector sources

Vector data in GeoDMS applications is read from (and can also be written to some of) the following formats:

vector calculations

The GeoDMS contains multiple functions to calculate with the vector coordinates, see mainly the geometric-functions