polylinje

A polyline is a geometric object consisting of a connected series of straight line segments. Unlike a simple line, which is a single straight or curved segment, a polyline is composed of multiple segments that are linked end-to-end. Each segment is defined by two points: the endpoint of the previous segment and the starting point of the next. This structure allows for the creation of complex shapes, such as zigzags, polygons, or freeform curves, by adjusting the positions of these connecting points.

Polylines are commonly used in computer graphics, geographic information systems (GIS), and computer-aided design (CAD) software. In GIS, polylines are frequently employed to represent linear features such as roads, rivers, or power lines. They provide a flexible way to model real-world linear elements that may not follow a single straight or smooth curve. In CAD, polylines are useful for drawing intricate shapes, such as architectural outlines or mechanical parts, where precision and control over individual segments are important.

The definition of a polyline can vary slightly depending on the application. In some contexts, a polyline may include additional attributes, such as width, color, or layer information, to enhance its visual representation or functional use. Some software tools also allow for the editing of individual segments, enabling users to modify the shape dynamically. Polylines can be open, meaning they do not form a closed loop, or closed, where the final segment connects back to the starting point, creating an enclosed area.

Efficiency and storage considerations often influence how polylines are implemented. In digital systems, polylines are typically stored as a series of coordinates, with each segment defined by two consecutive points. This approach minimizes redundancy while allowing for complex shapes to be constructed with relative ease. Overall, polylines serve as a versatile tool for modeling and representing linear and polygonal structures in various technical and scientific fields.