## JOIN (Command)

A line object results from **joining** collinear lines. The lines can have gaps between their endpoints. An arc or circle object results from **joining** coplanar arcs with the same center point and radius. The arcs can have gaps between their endpoints. Lengthening occurs in a counterclockwise direction.

## What are collinear points

8/21/2013 · A plane contains infinite number of lines. A ray is a line starting from a point but extending infinitely and a segment is a line **joining** two endpoints. A point is labeled using a capital letter.

Sursa: https://www.youtube.com/watch?v=2VZWmnd9L70

## There are 10 points in a plane in which 4 are collinear …

2 points when joined in a plane will make 1 line. If the total number of point is 10, the total number of line = 10C2 But 4 points are collinear, so the lines make with these 4 points are same. Hence there is 1 common line **joining** the 4 collinear …

## AutoCAD 2007: Join Command Basics (Between the Lines)

When you use the Join command to join objects, the following rules apply. Lines: • Segments must be collinear. • Segments can overlap. • Segments can have a gap between them. Polylines and splines: • Must be coplanar. • Must share a common endpoint. • Segments cannot overlap. • Lines and arcs can be joined to polylines if a polyline is selected as the source object.

Sursa: https://autodesk.blogs.com/between_the_lines/2006/10/autocad_2007_jo.html

## "Lines are non coplanar" using FILLET and other commands …

Note: Be sure that the precision of the current units is set high enough so that rounding does not cause values to appear the same when they are actually different. Type UNITS at the command line.; For decimal values, set the precision to 8 decimal places. For Architectural units, set the precision to 1/256". Optionally, set the Start Z and End Z values to 0 or whatever other elevation is …