Linear coordinate system

The Linear coordinate system editor panel combines modes that allow for creating Linear Coordinate System (LCS) objects, performing conversions from flat rectangular systems to linear coordinates and vice versa.

A Linear Coordinate System (LCS) is a measurement system of linear coordinates along the contour of an object from the first point of the object to a specified point. This measurement is in meters along an axis that sequentially passes through all the contours of a linear object from the first point of the first contour. The definition of a linear coordinate system is performed relative to established calibration points located along the object's contour. The contours of the object's LCS axis can be adjacent or have gaps between them. The main purpose of calibration points is to facilitate the transition from flat rectangular coordinates (X, Y) to linear coordinate (M) along the object and vice versa.

Calibration points are typically created based on real point objects located along the contour of a linear object. For example, compressor stations along a pipeline have passport values of linear coordinates on the pipeline from its beginning. Kilometer posts along a road have passport values of distance from a hypothetical starting point of the road. The first point of an object may have a non-zero linear coordinate in its label. The linear coordinates (M) of calibration points must strictly increase along the linear object. The number of calibration points for an extended linear object can be arbitrary. A route is a linear object for which an LCS is established.