Polyline vs 2d polyline. "normal" polyline to which you are used.
Polyline vs 2d polyline Polyline = a series of straight line and arc segments that define a single AutoCAD entity. That's correct, 2d polylines are legacy objects from Acad R14 and earlier. A "legacy" polyline can be either a 2D or 3D polyline, while a lightweight polyline can only be a 2D polyline. All the segments of a polyline lie on a 2D plane although that plane may be The main difference between a 2D and a 3D polyline in AutoCAD lies in their dimensionality and properties. LWPOLYLINE) it's just a "polyline" in the properties box. How are feature lines different from 3D polylines? – They support true geometric arcs. Sometimes called a 2D polyline, a lightweight polyline is greatly improved over the older heavyweight or 3D polyline which was used before AutoCAD 14. It is possible to have a “3d polyline” and have each vertex at the same elevation. 3d polyline – this is a POLYLINE entity, usually 3D, with each vertex at a different elevation. – They interact with each other. They store their vertex. 2d polyline – this is a POLYLINE entity, also 2D. . Lightweight polylines display faster and consume less disk space and RAM than "legacy" 2D polylines. On the other hand, 3DPOLY command generates the 3D Polyline (technically called Polyline) which can be drawn in any direction (XYZ). A 2D polyline exists solely in the two-dimensional space of the XY plane, while a 3D polyline extends into the third dimension, allowing for elevation and height information. 2D Polylines are the old style polylines. "normal" polyline to which you are used. Using 2D polylines allows AutoCAD to regenerate the drawing faster, which in turn allows you to work faster. e. Spline = a smooth curve that may lie on a 2D plane or can wander in 3D space. If you then spline the line from the PEDIT command, it turns the normal LWPOLYLINE into a POLYLINE (listed) and shows up as a "2D Polyline in the properties box. 2D polyline is good enough for drawings in 2D and 3D polylines can be used in places like 3D extrution path, for example. On the other hand, 3DPOLY command generates the 3D Polyline (technically called Polyline) which can be drawn in any direction (XYZ). I assume AutoCAD does this so it can perform different operations on each entity??? 2D polylines are good enough for drawings in 2D, while 3D polylines can be used in places like 3D extrusion paths. If you draw a simple polyline (i. jmtat ouj mty lyew wwaah foci adu bwowuoz jyfmbf fszzdr